Add a class EndToEndTestRunner which extends InstrumentationTestRunner and can get the port of emulator. Then test can be run on more than one emulators at the same time.

MyTracks/src/com/google/android/apps/mytracks/AbstractMyTracksActivity.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2012 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+
+import android.os.Bundle;
+import android.speech.tts.TextToSpeech;
+import android.support.v4.app.FragmentActivity;
+import android.view.MenuItem;
+
+/**
+ * An abstract class for all My Tracks activities.
+ * 
+ * @author Jimmy Shih
+ */
+public class AbstractMyTracksActivity extends FragmentActivity {
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setVolumeControlStream(TextToSpeech.Engine.DEFAULT_STREAM);
+    ApiAdapterFactory.getApiAdapter().configureActionBarHomeAsUp(this);
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    if (item.getItemId() != android.R.id.home) {
+      return super.onOptionsItemSelected(item);
+    }
+    onHomeSelected();
+    return true;
+  }
+
+  /**
+   * Callback when the home menu item is selected.
+   */
+  protected void onHomeSelected() {
+    finish();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/AggregatedStatsActivity.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.apps.mytracks.util.StatsUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.os.Bundle;
+
+import java.util.List;
+
+/**
+ * An activity to view aggregated stats from all recorded tracks.
+ *
+ * @author Fergus Nelson
+ */
+public class AggregatedStatsActivity extends AbstractMyTracksActivity {
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.aggregated_stats);
+    StatsUtils.setTripStatisticsValues(this, getTripStatistics());
+    StatsUtils.setLocationValues(this, null, false);
+  }
+
+  /**
+   * Gets the aggregated trip statistics for all the recorded tracks or null if
+   * there is no track.
+   */
+  private TripStatistics getTripStatistics() {
+    List<Track> tracks = MyTracksProviderUtils.Factory.get(this).getAllTracks();
+    TripStatistics tripStatistics = null;
+    if (!tracks.isEmpty()) {
+      tripStatistics = new TripStatistics(tracks.iterator().next().getTripStatistics());
+      for (int i = 1; i < tracks.size(); i++) {
+        tripStatistics.merge(tracks.get(i).getTripStatistics());
+      }
+    }
+    return tripStatistics;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/AutoCompleteTextPreference.java

@@ -0,0 +1,65 @@
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.preference.EditTextPreference;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewParent;
+import android.widget.ArrayAdapter;
+import android.widget.AutoCompleteTextView;
+
+/**
+ * The {@link AutoCompleteTextPreference} class is a preference that allows for
+ * string input using auto complete . It is a subclass of
+ * {@link EditTextPreference} and shows the {@link AutoCompleteTextView} in a
+ * dialog.
+ * <p>
+ * This preference will store a string into the SharedPreferences.
+ * 
+ * @author Rimas Trumpa (with Matt Levan)
+ */
+public class AutoCompleteTextPreference extends EditTextPreference {
+
+  private AutoCompleteTextView mEditText = null;
+
+  public AutoCompleteTextPreference(Context context, AttributeSet attrs) {
+    super(context, attrs);
+    mEditText = new AutoCompleteTextView(context, attrs);
+    mEditText.setThreshold(0);
+
+    // Gets autocomplete values for 'Default Activity' preference
+    if (PreferencesUtils.getKey(context, R.string.default_activity_key).equals(getKey())) {
+      ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
+          context, R.array.activity_types, android.R.layout.simple_dropdown_item_1line);
+      mEditText.setAdapter(adapter);
+    }
+  }
+
+  @Override
+  protected void onBindDialogView(View view) {
+    AutoCompleteTextView editText = mEditText;
+    editText.setText(getText());
+
+    ViewParent oldParent = editText.getParent();
+    if (oldParent != view) {
+      if (oldParent != null) {
+        ((ViewGroup) oldParent).removeView(editText);
+      }
+      onAddEditTextToDialogView(view, editText);
+    }
+  }
+
+  @Override
+  protected void onDialogClosed(boolean positiveResult) {
+    if (positiveResult) {
+      String value = mEditText.getText().toString();
+      if (callChangeListener(value)) {
+        setText(value);
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/BootReceiver.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2010 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks;
+
+import static android.content.Intent.ACTION_BOOT_COMPLETED;
+import static com.google.android.apps.mytracks.Constants.RESUME_TRACK_EXTRA_NAME;
+import static com.google.android.apps.mytracks.Constants.TAG;
+
+import com.google.android.apps.mytracks.services.RemoveTempFilesService;
+import com.google.android.apps.mytracks.services.TrackRecordingService;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+/**
+ * This class handles MyTracks related broadcast messages.
+ *
+ * One example of a broadcast message that this class is interested in,
+ * is notification about the phone boot.  We may want to resume a previously
+ * started tracking session if the phone crashed (hopefully not), or the user
+ * decided to swap the battery or some external event occurred which forced
+ * a phone reboot.
+ *
+ * This class simply delegates to {@link TrackRecordingService} to make a
+ * decision whether to continue with the previous track (if any), or just
+ * abandon it.
+ * 
+ * @author Bartlomiej Niechwiej
+ */
+public class BootReceiver extends BroadcastReceiver {
+
+  @Override
+  public void onReceive(Context context, Intent intent) {
+    Log.d(TAG, "BootReceiver.onReceive: " + intent.getAction());
+    if (ACTION_BOOT_COMPLETED.equals(intent.getAction())) {
+      Intent startIntent = new Intent(context, TrackRecordingService.class)
+          .putExtra(RESUME_TRACK_EXTRA_NAME, true);
+      context.startService(startIntent);
+
+      Intent removeTempFilesIntent = new Intent(context, RemoveTempFilesService.class);
+      context.startService(removeTempFilesIntent);
+    } else {
+      Log.w(TAG, "BootReceiver: unsupported action");
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/ChartValueSeries.java

@@ -0,0 +1,264 @@
+/*
+ * Copyright 2009 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.stats.ExtremityMonitor;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Paint.Align;
+import android.graphics.Paint.Style;
+import android.graphics.Path;
+
+import java.text.NumberFormat;
+
+/**
+ * This class encapsulates the meta data for one series of the chart values.
+ * 
+ * @author Sandor Dornbush
+ */
+public class ChartValueSeries {
+
+  private static final float STROKE_WIDTH = 2f;
+
+  private final int absoluteMin;
+  private final int absoluteMax;
+  private final int[] intervalValues;
+  private final int metricTitleId;
+  private final int imperialTitleId;
+  private final Paint fillPaint;
+  private final Paint strokePaint;
+  private final Paint titlePaint;
+  private final Paint markerPaint;
+  private final ExtremityMonitor extremityMonitor;
+  private final NumberFormat numberFormat;
+  private final Path path;
+  
+  private int interval = 1;
+  private int minMarkerValue = 0;
+  private int maxMarkerValue = interval * ChartView.Y_AXIS_INTERVALS;
+  private boolean enabled = true;
+
+  /**
+   * Constructor.
+   * 
+   * @param context the context
+   * @param absoluteMin the absolute min value
+   * @param absoluteMax the absolute max value
+   * @param intervalValues the list of interval values
+   * @param metricTitleId the metric title id
+   * @param imperialTitleId the imperial title id
+   * @param fillColor the fill color
+   * @param strokeColor the stroke color
+   */
+  public ChartValueSeries(Context context, int absoluteMin, int absoluteMax, int[] intervalValues,
+      int metricTitleId, int imperialTitleId, int fillColor, int strokeColor) {
+    this.absoluteMin = absoluteMin;
+    this.absoluteMax = absoluteMax;
+    this.intervalValues = intervalValues;
+    this.metricTitleId = metricTitleId;
+    this.imperialTitleId = imperialTitleId;
+
+    fillPaint = new Paint();
+    fillPaint.setStyle(Style.FILL);
+    fillPaint.setColor(context.getResources().getColor(fillColor));
+    fillPaint.setAntiAlias(true);
+
+    strokePaint = new Paint();
+    strokePaint.setStyle(Style.STROKE);
+    strokePaint.setColor(context.getResources().getColor(strokeColor));
+    strokePaint.setAntiAlias(true);
+
+    float scale = context.getResources().getDisplayMetrics().density;
+    
+    // Make copies of the stroke paint with the default thickness
+    titlePaint = new Paint(strokePaint);
+    titlePaint.setTextSize(ChartView.MEDIUM_TEXT_SIZE * scale);
+    titlePaint.setTextAlign(Align.CENTER);
+
+    markerPaint = new Paint(strokePaint);
+    markerPaint.setTextSize(ChartView.SMALL_TEXT_SIZE * scale);
+    markerPaint.setTextAlign(Align.RIGHT);
+
+    // Set stroke paint thickness
+    strokePaint.setStrokeWidth(STROKE_WIDTH);
+
+    extremityMonitor = new ExtremityMonitor();
+    numberFormat = NumberFormat.getIntegerInstance();
+    path = new Path();
+  }
+
+  /**
+   * Sets the series enabled value.
+   * 
+   * @param enabled true to enable
+   */
+  public void setEnabled(boolean enabled) {
+    this.enabled = enabled;
+  }
+
+  /**
+   * Returns true if the series is enabled.
+   */
+  public boolean isEnabled() {
+    return enabled;
+  }
+
+  /**
+   * Returns true if the series has data.
+   */
+  public boolean hasData() {
+    return extremityMonitor.hasData();
+  }
+
+  /**
+   * Updates the series with a new value.
+   * 
+   * @param value the new value
+   */
+  public void update(double value) {
+    extremityMonitor.update(value);
+  }
+
+  /**
+   * Gets the path.
+   */
+  public Path getPath() {
+    return path;
+  }
+
+  /**
+   * Draws the path on canvas.
+   * 
+   * @param canvas the canvas
+   */
+  public void drawPath(Canvas canvas) {
+    canvas.drawPath(path, fillPaint);
+    canvas.drawPath(path, strokePaint);
+  }
+
+  /**
+   * Updates the y axis dimension.
+   */
+  public void updateDimension() {
+    double min = hasData() ? extremityMonitor.getMin() : 0.0;
+    double max = hasData() ? extremityMonitor.getMax() : 1.0;
+    min = Math.max(min, absoluteMin);
+    max = Math.min(max, absoluteMax);
+    interval = getInterval(min, max);
+    minMarkerValue = getMinMarkerValue(min, interval);
+    maxMarkerValue = minMarkerValue + interval * ChartView.Y_AXIS_INTERVALS;
+  }
+
+  /**
+   * Gets the interval value.
+   * 
+   * @param min the min value
+   * @param max the max value
+   */
+  private int getInterval(double min, double max) {
+    for (int i = 0; i < intervalValues.length; i++) {
+      int intervalValue = intervalValues[i];
+      int minValue = getMinMarkerValue(min, intervalValue);
+      double targetInterval = (max - minValue) / ChartView.Y_AXIS_INTERVALS;
+      if (intervalValue >= targetInterval) {
+        return intervalValue;
+      }
+    }
+    // Return the largest interval
+    return intervalValues[intervalValues.length - 1];
+  }
+
+  /**
+   * Gets the min marker value.
+   * 
+   * @param min the min series value
+   * @param intervalValue the interval value
+   */
+  private int getMinMarkerValue(double min, int intervalValue) {
+    // Round down to the nearest intervalValue
+    int value = ((int) (min / intervalValue)) * intervalValue;
+    // value > min if min is negative
+    if (value > min) {
+      return value - intervalValue;
+    }
+    return value;
+  }
+
+  /**
+   * Gets the interval value.
+   */
+  public int getInterval() {
+    return interval;
+  }
+
+  /**
+   * Gets the min marker value.
+   */
+  public int getMinMarkerValue() {
+    return minMarkerValue;
+  }
+
+  /**
+   * Gets the max marker value.
+   */
+  @VisibleForTesting
+  int getMaxMarkerValue() {
+    return maxMarkerValue;
+  }
+
+  /**
+   * Gets the title id.
+   */
+  public int getTitleId(boolean metricUnits) {
+    return metricUnits ? metricTitleId : imperialTitleId;
+  }
+
+  /**
+   * Gets the title paint.
+   */
+  public Paint getTitlePaint() {
+    return titlePaint;
+  }
+
+  /**
+   * Gets the marker paint.
+   */
+  public Paint getMarkerPaint() {
+    return markerPaint;
+  }
+
+  /**
+   * Gets the largest marker.
+   */
+  public String getLargestMarker() {
+    String minMarker = numberFormat.format(getMinMarkerValue());
+    String maxMarker = numberFormat.format(getMaxMarkerValue());
+    return minMarker.length() >= maxMarker.length() ? minMarker : maxMarker;
+  }
+
+  /**
+   * Formats a marker value.
+   * 
+   * @param value the value
+   */
+  public String formatMarker(int value) {
+    return numberFormat.format(value);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/ColoredPath.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks;
+
+import android.graphics.Paint;
+import android.graphics.Path;
+
+/**
+ * Represents a colored {@code Path} to save its relative color for drawing.
+ * @author Vangelis S.
+ */
+public class ColoredPath {
+  private final Path path;
+  private final Paint pathPaint;
+
+  /**
+   * Constructor for a ColoredPath by color.
+   */
+  public ColoredPath(int color) {
+      path = new Path();
+      pathPaint = new Paint();
+      pathPaint.setColor(color);
+      pathPaint.setStrokeWidth(3);
+      pathPaint.setStyle(Paint.Style.STROKE);
+      pathPaint.setAntiAlias(true);
+  }
+  
+  /**
+   * Constructor for a ColoredPath by Paint.
+   */
+  public ColoredPath(Paint paint) {
+      path = new Path();
+      pathPaint = paint;
+  }
+  
+  /**
+   * @return the path
+   */
+  public Path getPath() {
+    return path;
+  }
+  
+  /**
+   * @return the pathPaint
+   */
+  public Paint getPathPaint() {
+    return pathPaint;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/Constants.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks;
+
+/**
+ * Constants used by the MyTracks application.
+ *
+ * @author Leif Hendrik Wilden
+ */
+public abstract class Constants {
+
+  /**
+   * Should be used by all log statements
+   */
+  public static final String TAG = "MyTracks";
+
+  /**
+   * Name of the top-level directory inside the SD card where our files will
+   * be read from/written to.
+   */
+  public static final String SDCARD_TOP_DIR = "MyTracks";
+
+  /**
+   * The number of distance readings to smooth to get a stable signal.
+   */
+  public static final int DISTANCE_SMOOTHING_FACTOR = 25;
+
+  /**
+   * The number of elevation readings to smooth to get a somewhat accurate
+   * signal.
+   */
+  public static final int ELEVATION_SMOOTHING_FACTOR = 25;
+
+  /**
+   * The number of grade readings to smooth to get a somewhat accurate signal.
+   */
+  public static final int GRADE_SMOOTHING_FACTOR = 5;
+
+  /**
+   * The number of speed reading to smooth to get a somewhat accurate signal.
+   */
+  public static final int SPEED_SMOOTHING_FACTOR = 25;
+
+  /**
+   * Maximum number of track points displayed by the map overlay.
+   */
+  public static final int MAX_DISPLAYED_TRACK_POINTS = 10000;
+
+  /**
+   * Target number of track points displayed by the map overlay.
+   * We may display more than this number of points.
+   */
+  public static final int TARGET_DISPLAYED_TRACK_POINTS = 5000;
+
+  /**
+   * Maximum number of track points ever loaded at once from the provider into
+   * memory.
+   * With a recording frequency of 2 seconds, 15000 corresponds to 8.3 hours.
+   */
+  public static final int MAX_LOADED_TRACK_POINTS = 20000;
+
+  /**
+   * Maximum number of track points ever loaded at once from the provider into
+   * memory in a single call to read points.
+   */
+  public static final int MAX_LOADED_TRACK_POINTS_PER_BATCH = 1000;
+
+  /**
+   * Maximum number of way points displayed by the map overlay.
+   */
+  public static final int MAX_DISPLAYED_WAYPOINTS_POINTS = 128;
+
+  /**
+   * Maximum number of way points that will be loaded at one time.
+   */
+  public static final int MAX_LOADED_WAYPOINTS_POINTS = 10000;
+
+  /**
+   * Any time segment where the distance traveled is less than this value will
+   * not be considered moving.
+   */
+  public static final double MAX_NO_MOVEMENT_DISTANCE = 2;
+
+  /**
+   * Anything faster than that (in meters per second) will be considered moving.
+   */
+  public static final double MAX_NO_MOVEMENT_SPEED = 0.224;
+
+  /**
+   * Ignore any acceleration faster than this.
+   * Will ignore any speeds that imply accelaration greater than 2g's
+   * 2g = 19.6 m/s^2 = 0.0002 m/ms^2 = 0.02 m/(m*ms)
+   */
+  public static final double MAX_ACCELERATION = 0.02;
+
+  /** Maximum age of a GPS location to be considered current. */
+  public static final long MAX_LOCATION_AGE_MS = 60 * 1000;  // 1 minute
+
+  /** Maximum age of a network location to be considered current. */
+  public static final long MAX_NETWORK_AGE_MS = 1000 * 60 * 10;  // 10 minutes
+
+  /**
+   * The type of account that we can use for gdata uploads.
+   */
+  public static final String ACCOUNT_TYPE = "com.google";
+
+  /**
+   * The name of extra intent property to indicate whether we want to resume
+   * a previously recorded track.
+   */
+  public static final String
+      RESUME_TRACK_EXTRA_NAME = "com.google.android.apps.mytracks.RESUME_TRACK";
+
+  public static final String SETTINGS_NAME = "SettingsActivity";
+
+  public static final double WAYPOINT_X_OFFSET_PERCENTAGE = 13 / 48.0;
+
+  public static final double MARKER_Y_OFFSET_PERCENTAGE = 91 / 96.0;
+
+  /**
+   * This is an abstract utility class.
+   */
+  protected Constants() { }
+}

MyTracks/src/com/google/android/apps/mytracks/ContextualActionModeCallback.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+/**
+ * Callback when an item in the contextual action mode is selected.
+ * 
+ * @author Jimmy Shih
+ */
+public interface ContextualActionModeCallback {
+    
+  /**
+   * Invoked when an item is selected.
+   * 
+   * @param itemId the context menu item id
+   * @param position the position of the selected row
+   * @param id the id of the selected row, if available
+   */
+  public boolean onClick(int itemId, int position, long id);
+}

MyTracks/src/com/google/android/apps/mytracks/HelpActivity.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2008 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.fragments.AboutDialogFragment;
+import com.google.android.maps.mytracks.R;
+
+import android.os.Bundle;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.TextView;
+
+/**
+ * An activity that displays the help page.
+ * 
+ * @author Sandor Dornbush
+ */
+public class HelpActivity extends AbstractMyTracksActivity {
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.help);
+
+    TextView mapsPublicUnlisted = (TextView) findViewById(R.id.help_maps_public_unlisted_answer);
+    mapsPublicUnlisted.setText(getString(
+        R.string.help_maps_public_unlisted_answer, getString(R.string.maps_public_unlisted_url)));
+
+    TextView sendTrack = (TextView) findViewById(R.id.help_send_track_answer);
+    sendTrack.setText(getString(R.string.help_send_track_answer,
+        getString(R.string.send_google_maps_url),
+        getString(R.string.send_google_fusion_tables_url),
+        getString(R.string.send_google_docs_url)));
+
+    findViewById(R.id.help_ok).setOnClickListener(new OnClickListener() {
+      public void onClick(View v) {
+        finish();
+      }
+    });
+    findViewById(R.id.help_about).setOnClickListener(new OnClickListener() {
+      public void onClick(View v) {
+        new AboutDialogFragment().show(
+            getSupportFragmentManager(), AboutDialogFragment.ABOUT_DIALOG_TAG);
+      }
+    });
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/ImportActivity.java

@@ -0,0 +1,203 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.apps.mytracks.util.FileUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.UriUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.v4.app.TaskStackBuilder;
+import android.util.Log;
+import android.widget.Toast;
+
+/**
+ * An activity to import GPX files from the SD card. Optionally to import one
+ * GPX file and display it in My Tracks.
+ *
+ * @author Rodrigo Damazio
+ */
+public class ImportActivity extends Activity {
+
+  public static final String EXTRA_IMPORT_ALL = "import_all";
+
+  private static final String TAG = ImportActivity.class.getSimpleName();
+
+  private static final int DIALOG_PROGRESS_ID = 0;
+  private static final int DIALOG_RESULT_ID = 1;
+
+  private ImportAsyncTask importAsyncTask;
+  private ProgressDialog progressDialog;
+  
+  private boolean importAll;
+  
+  // path on the SD card to import
+  private String path;
+
+  // number of succesfully imported files
+  private int successCount;
+  
+  // number of files to import
+  private int totalCount;
+  
+  // last successfully imported track id
+  private long trackId;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    Intent intent = getIntent();
+    importAll = intent.getBooleanExtra(EXTRA_IMPORT_ALL, false);
+    if (importAll) {
+      path = FileUtils.buildExternalDirectoryPath("gpx");
+    } else {
+      String action = intent.getAction();
+      if (!(Intent.ACTION_ATTACH_DATA.equals(action) || Intent.ACTION_VIEW.equals(action))) {
+        Log.d(TAG, "Invalid action: " + intent);
+        finish();
+        return;
+      }
+
+      Uri data = intent.getData();
+      if (!UriUtils.isFileUri(data)) {
+        Log.d(TAG, "Invalid data: " + intent);
+        finish();
+        return;
+      }
+      path = data.getPath();
+    }
+
+    Object retained = getLastNonConfigurationInstance();
+    if (retained instanceof ImportAsyncTask) {
+      importAsyncTask = (ImportAsyncTask) retained;
+      importAsyncTask.setActivity(this);
+    } else {
+      importAsyncTask = new ImportAsyncTask(this, importAll, path);
+      importAsyncTask.execute();
+    }
+  }
+
+  @Override
+  public Object onRetainNonConfigurationInstance() {
+    importAsyncTask.setActivity(null);
+    return importAsyncTask;
+  }
+
+  @Override
+  protected Dialog onCreateDialog(int id) {
+    switch (id) {
+      case DIALOG_PROGRESS_ID:
+        progressDialog = DialogUtils.createHorizontalProgressDialog(
+            this, R.string.sd_card_import_progress_message, new DialogInterface.OnCancelListener() {
+              @Override
+              public void onCancel(DialogInterface dialog) {
+                importAsyncTask.cancel(true);
+                finish();
+              }
+            });
+        return progressDialog;
+      case DIALOG_RESULT_ID:
+        String message;
+        if (successCount == 0) {
+          message = getString(R.string.sd_card_import_error_no_file, path);
+        } else {
+          String totalFiles = getResources()
+              .getQuantityString(R.plurals.importGpxFiles, totalCount, totalCount);
+          message = getString(
+              R.string.sd_card_import_success_count, successCount, totalFiles, path);
+        }
+        return new AlertDialog.Builder(this)
+            .setCancelable(true)
+            .setMessage(message)
+            .setOnCancelListener(new DialogInterface.OnCancelListener() {
+              @Override
+              public void onCancel(DialogInterface dialog) {
+                finish();
+              }
+            })
+            .setPositiveButton(R.string.generic_ok, new DialogInterface.OnClickListener() {
+              @Override
+              public void onClick(DialogInterface dialog, int which) {
+                if (!importAll && trackId != -1L) {
+                  Intent intent = IntentUtils
+                      .newIntent(ImportActivity.this, TrackDetailActivity.class)
+                      .putExtra(TrackDetailActivity.EXTRA_TRACK_ID, trackId);
+                  TaskStackBuilder taskStackBuilder = TaskStackBuilder.from(ImportActivity.this);
+                  taskStackBuilder.addNextIntent(intent);
+                  taskStackBuilder.startActivities();
+                }
+                finish();
+              }
+            })
+            .create();
+      default:
+        return null;
+    }
+  }
+
+  /**
+   * Invokes when the associated AsyncTask completes.
+   *
+   * @param success true if the AsyncTask is successful
+   * @param imported the number of files successfully imported
+   * @param total the total number of files to import
+   * @param id the last successfully imported track id
+   */
+  public void onAsyncTaskCompleted(boolean success, int imported, int total, long id) {
+    successCount = imported;
+    totalCount = total;
+    trackId = id;
+    removeDialog(DIALOG_PROGRESS_ID);
+    if (success) {
+      showDialog(DIALOG_RESULT_ID);
+    } else {
+      Toast.makeText(this, R.string.sd_card_import_error, Toast.LENGTH_LONG).show();
+      finish();
+    }
+  }
+
+  /**
+   * Shows the progress dialog.
+   */
+  public void showProgressDialog() {
+    showDialog(DIALOG_PROGRESS_ID);
+  }
+
+  /**
+   * Sets the progress dialog value.
+   *
+   * @param number the number of files imported
+   * @param max the maximum number of files
+   */
+  public void setProgressDialogValue(int number, int max) {
+    if (progressDialog != null) {
+      progressDialog.setIndeterminate(false);
+      progressDialog.setMax(max);
+      progressDialog.setProgress(Math.min(number, max));
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/ImportAsyncTask.java

@@ -0,0 +1,216 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.io.file.GpxImporter;
+import com.google.android.apps.mytracks.util.FileUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.SystemUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.os.AsyncTask;
+import android.os.PowerManager.WakeLock;
+import android.util.Log;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.parsers.ParserConfigurationException;
+
+import org.xml.sax.SAXException;
+
+/**
+ * AsyncTask to import GPX files from the SD card.
+ *
+ * @author Jimmy Shih
+ */
+public class ImportAsyncTask extends AsyncTask<Void, Integer, Boolean> {
+
+  private static final String TAG = ImportAsyncTask.class.getSimpleName();
+
+  private ImportActivity importActivity;
+  private final boolean importAll;
+  private final String path;
+  private final MyTracksProviderUtils myTracksProviderUtils;
+  private WakeLock wakeLock;
+
+  // true if the AsyncTask result is success
+  private boolean success;
+
+  // true if the AsyncTask has completed
+  private boolean completed;
+
+  // number of files successfully imported
+  private int successCount;
+
+  // number of files to import
+  private int totalCount;
+
+  // the last successfully imported track id
+  private long trackId;
+
+  /**
+   * Creates an AsyncTask.
+   *
+   * @param importActivity the activity currently associated with this AsyncTask
+   * @param importAll true to import all GPX files
+   * @param path path to import GPX files
+   */
+  public ImportAsyncTask(ImportActivity importActivity, boolean importAll, String path) {
+    this.importActivity = importActivity;
+    this.importAll = importAll;
+    this.path = path;
+
+    myTracksProviderUtils = MyTracksProviderUtils.Factory.get(importActivity);
+
+    // Get the wake lock if not recording
+    if (PreferencesUtils.getLong(importActivity, R.string.recording_track_id_key)
+        == PreferencesUtils.RECORDING_TRACK_ID_DEFAULT) {
+      wakeLock = SystemUtils.acquireWakeLock(importActivity, wakeLock);
+    }
+
+    success = false;
+    completed = false;
+    successCount = 0;
+    totalCount = 0;
+    trackId = -1L;
+  }
+
+  /**
+   * Sets the current {@link ImportActivity} associated with this AyncTask.
+   *
+   * @param importActivity the current {@link ImportActivity}, can be null
+   */
+  public void setActivity(ImportActivity importActivity) {
+    this.importActivity = importActivity;
+    if (completed && importActivity != null) {
+      importActivity.onAsyncTaskCompleted(success, successCount, totalCount, trackId);
+    }
+  }
+
+  @Override
+  protected void onPreExecute() {
+    if (importActivity != null) {
+      importActivity.showProgressDialog();
+    }
+  }
+
+  @Override
+  protected Boolean doInBackground(Void... params) {
+    try {
+      if (!FileUtils.isSdCardAvailable()) {
+        return false;
+      }
+
+      List<File> files = getFiles();
+      totalCount = files.size();
+      if (totalCount == 0) {
+        return true;
+      }
+
+      for (int i = 0; i < totalCount; i++) {
+        if (isCancelled()) {
+          // If cancelled, return true to show the number of files imported
+          return true;
+        }
+        File file = files.get(i);
+        if (importFile(file)) {
+          successCount++;
+        }
+        publishProgress(i + 1, totalCount);
+      }
+      return true;
+    } finally {
+      // Release the wake lock if obtained
+      if (wakeLock != null && wakeLock.isHeld()) {
+        wakeLock.release();
+      }
+    }
+  }
+
+  @Override
+  protected void onProgressUpdate(Integer... values) {
+    if (importActivity != null) {
+      importActivity.setProgressDialogValue(values[0], values[1]);
+    }
+  }
+
+  @Override
+  protected void onPostExecute(Boolean result) {
+    success = result;
+    completed = true;
+    if (importActivity != null) {
+      importActivity.onAsyncTaskCompleted(success, successCount, totalCount, trackId);
+    }
+  }
+
+  /**
+   * Imports a GPX file.
+   *
+   * @param file the file
+   */
+  private boolean importFile(final File file) {
+    try {
+      long trackIds[] = GpxImporter.importGPXFile(new FileInputStream(file), myTracksProviderUtils);
+      int length = trackIds.length;
+      if (length > 0) {
+        trackId = trackIds[length - 1];
+      }
+      return true;
+    } catch (FileNotFoundException e) {
+      Log.d(TAG, "file: " + file.getAbsolutePath(), e);
+      return false;
+    } catch (ParserConfigurationException e) {
+      Log.d(TAG, "file: " + file.getAbsolutePath(), e);
+      return false;
+    } catch (SAXException e) {
+      Log.d(TAG, "file: " + file.getAbsolutePath(), e);
+      return false;
+    } catch (IOException e) {
+      Log.d(TAG, "file: " + file.getAbsolutePath(), e);
+      return false;
+    }
+  }
+
+  /**
+   * Gets a list of GPX files. If importAll is true, returns a list of GPX files
+   * under the path directory. If importAll is false, returns a list containing
+   * just the path file.
+   */
+  private List<File> getFiles() {
+    List<File> files = new ArrayList<File>();
+    File file = new File(path);
+    if (importAll) {
+      File[] candidates = file.listFiles();
+      if (candidates != null) {
+        for (File candidate : candidates) {
+          if (!candidate.isDirectory() && candidate.getName().endsWith(".gpx")) {
+            files.add(candidate);
+          }
+        }
+      }
+    } else {
+      files.add(file);
+    }
+    return files;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/IntegerListPreference.java

@@ -0,0 +1,95 @@
+/*
+ * Copyright 2010 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import android.content.Context;
+import android.preference.ListPreference;
+import android.util.AttributeSet;
+
+/**
+ * A list preference which persists its values as integers instead of strings.
+ * Code reading the values should use
+ * {@link android.content.SharedPreferences#getInt}.
+ * When using XML-declared arrays for entry values, the arrays should be regular
+ * string arrays containing valid integer values.
+ *
+ * @author Rodrigo Damazio
+ */
+public class IntegerListPreference extends ListPreference {
+
+  public IntegerListPreference(Context context) {
+    super(context);
+
+    verifyEntryValues(null);
+  }
+
+  public IntegerListPreference(Context context, AttributeSet attrs) {
+    super(context, attrs);
+
+    verifyEntryValues(null);
+  }
+
+  @Override
+  public void setEntryValues(CharSequence[] entryValues) {
+    CharSequence[] oldValues = getEntryValues();
+    super.setEntryValues(entryValues);
+    verifyEntryValues(oldValues);
+  }
+
+  @Override
+  public void setEntryValues(int entryValuesResId) {
+    CharSequence[] oldValues = getEntryValues();
+    super.setEntryValues(entryValuesResId);
+    verifyEntryValues(oldValues);
+  }
+
+  @Override
+  protected String getPersistedString(String defaultReturnValue) {
+    // During initial load, there's no known default value
+    int defaultIntegerValue = Integer.MIN_VALUE;
+    if (defaultReturnValue != null) {
+      defaultIntegerValue = Integer.parseInt(defaultReturnValue);
+    }
+
+    // When the list preference asks us to read a string, instead read an
+    // integer.
+    int value = getPersistedInt(defaultIntegerValue);
+    return Integer.toString(value);
+  }
+
+  @Override
+  protected boolean persistString(String value) {
+    // When asked to save a string, instead save an integer
+    return persistInt(Integer.parseInt(value));
+  }
+
+  private void verifyEntryValues(CharSequence[] oldValues) {
+    CharSequence[] entryValues = getEntryValues();
+    if (entryValues == null) {
+      return;
+    }
+
+    for (CharSequence entryValue : entryValues) {
+      try {
+        Integer.parseInt(entryValue.toString());
+      } catch (NumberFormatException nfe) {
+        super.setEntryValues(oldValues);
+        throw nfe;
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/MapOverlay.java

@@ -0,0 +1,579 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import static com.google.android.apps.mytracks.Constants.TAG;
+
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.maps.TrackPathPainter;
+import com.google.android.apps.mytracks.maps.TrackPathPainterFactory;
+import com.google.android.apps.mytracks.maps.TrackPathUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.UnitConversions;
+import com.google.android.maps.GeoPoint;
+import com.google.android.maps.MapView;
+import com.google.android.maps.Overlay;
+import com.google.android.maps.Projection;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.content.res.Resources;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
+import android.location.Location;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.BlockingQueue;
+
+/**
+ * A map overlay that displays my location arrow, error circle, and track info.
+ * 
+ * @author Leif Hendrik Wilden
+ */
+public class MapOverlay extends Overlay implements OnSharedPreferenceChangeListener {
+
+  private final Context context;
+  private final List<Waypoint> waypoints;
+  private final List<CachedLocation> points;
+  private final BlockingQueue<CachedLocation> pendingPoints;
+  private final Drawable[] arrows;
+  private final int arrowWidth;
+  private final int arrowHeight;
+  private final Drawable statsMarker;
+  private final Drawable waypointMarker;
+  private final Drawable startMarker;
+  private final Drawable endMarker;
+  private final int markerWidth;
+  private final int markerHeight;
+  private final Paint errorCirclePaint;
+  private TrackPathPainter trackPathPainter;
+
+  private boolean trackDrawingEnabled;
+  private boolean showEndMarker = true;
+  private int headingIndex = 0;
+  private Location myLocation;
+
+  private GeoPoint lastReferencePoint;
+  private Rect lastViewRect;
+
+  /**
+   * A pre-processed {@link Location} to speed up drawing.
+   * 
+   * @author Jimmy Shih
+   */
+  public static class CachedLocation {
+
+    private final boolean valid;
+    private final GeoPoint geoPoint;
+    private final int speed;
+
+    /**
+     * Constructor for an invalid cached location.
+     */
+    public CachedLocation() {
+      this.valid = false;
+      this.geoPoint = null;
+      this.speed = -1;
+    }
+
+    /**
+     * Constructor for a potentially valid cached location.
+     */
+    public CachedLocation(Location location) {
+      this.valid = LocationUtils.isValidLocation(location);
+      this.geoPoint = valid ? LocationUtils.getGeoPoint(location) : null;
+      this.speed = (int) Math.floor(location.getSpeed() * UnitConversions.MS_TO_KMH);
+    }
+
+    /**
+     * Returns true if the location is valid.
+     */
+    public boolean isValid() {
+      return valid;
+    }
+
+    /**
+     * Gets the {@link GeoPoint}.
+     */
+    public GeoPoint getGeoPoint() {
+      return geoPoint;
+    }
+
+    /**
+     * Gets the speed in kilometers per hour.
+     */
+    public int getSpeed() {
+      return speed;
+    }
+  };
+
+  public MapOverlay(Context context) {
+    this.context = context;
+    this.waypoints = new ArrayList<Waypoint>();
+    this.points = new ArrayList<CachedLocation>(1024);
+    this.pendingPoints = new ArrayBlockingQueue<CachedLocation>(
+        Constants.MAX_DISPLAYED_TRACK_POINTS, true);
+
+    /*
+     * TODO: Use animation rather than individual resources for each arrow
+     * direction.
+     */
+    final Resources resources = context.getResources();
+    arrows = new Drawable[] { resources.getDrawable(R.drawable.arrow_0),
+        resources.getDrawable(R.drawable.arrow_20), resources.getDrawable(R.drawable.arrow_40),
+        resources.getDrawable(R.drawable.arrow_60), resources.getDrawable(R.drawable.arrow_80),
+        resources.getDrawable(R.drawable.arrow_100), resources.getDrawable(R.drawable.arrow_120),
+        resources.getDrawable(R.drawable.arrow_140), resources.getDrawable(R.drawable.arrow_160),
+        resources.getDrawable(R.drawable.arrow_180), resources.getDrawable(R.drawable.arrow_200),
+        resources.getDrawable(R.drawable.arrow_220), resources.getDrawable(R.drawable.arrow_240),
+        resources.getDrawable(R.drawable.arrow_260), resources.getDrawable(R.drawable.arrow_280),
+        resources.getDrawable(R.drawable.arrow_300), resources.getDrawable(R.drawable.arrow_320),
+        resources.getDrawable(R.drawable.arrow_340) };
+    arrowWidth = arrows[headingIndex].getIntrinsicWidth();
+    arrowHeight = arrows[headingIndex].getIntrinsicHeight();
+    for (Drawable arrow : arrows) {
+      arrow.setBounds(0, 0, arrowWidth, arrowHeight);
+    }
+
+    statsMarker = resources.getDrawable(R.drawable.yellow_pushpin);
+    markerWidth = statsMarker.getIntrinsicWidth();
+    markerHeight = statsMarker.getIntrinsicHeight();
+    statsMarker.setBounds(0, 0, markerWidth, markerHeight);
+
+    waypointMarker = resources.getDrawable(R.drawable.blue_pushpin);
+    waypointMarker.setBounds(0, 0, markerWidth, markerHeight);
+
+    startMarker = resources.getDrawable(R.drawable.green_dot);
+    startMarker.setBounds(0, 0, markerWidth, markerHeight);
+
+    endMarker = resources.getDrawable(R.drawable.red_dot);
+    endMarker.setBounds(0, 0, markerWidth, markerHeight);
+
+    errorCirclePaint = TrackPathUtils.getPaint(context, R.color.blue);
+    errorCirclePaint.setAlpha(127);
+
+    trackPathPainter = TrackPathPainterFactory.getTrackPathPainter(context);
+
+    context.getSharedPreferences(Constants.SETTINGS_NAME, Context.MODE_PRIVATE)
+        .registerOnSharedPreferenceChangeListener(this);
+  }
+
+  /**
+   * Add a location to the map overlay.
+   * <p>
+   * NOTE: This method doesn't take ownership of the given location, so it is
+   * safe to reuse the same location while calling this method.
+   * 
+   * @param location the location
+   */
+  public void addLocation(Location location) {
+    // Queue up in the pendingPoints until it's merged with points.
+    if (!pendingPoints.offer(new CachedLocation(location))) {
+      Log.e(TAG, "Unable to add to pendingPoints.");
+    }
+  }
+
+  /**
+   * Adds a segment split to the map overlay.
+   */
+  public void addSegmentSplit() {
+    // Queue up in the pendingPoints until it's merged with points.
+    if (!pendingPoints.offer(new CachedLocation())) {
+      Log.e(TAG, "Unable to add to pendingPoints");
+    }
+  }
+
+  /**
+   * Clears the locations.
+   */
+  public void clearPoints() {
+    synchronized (points) {
+      points.clear();
+      pendingPoints.clear();
+      trackPathPainter.clearPath();
+      lastReferencePoint = null;
+      lastViewRect = null;
+    }
+  }
+
+  /**
+   * Adds a waypoint to the map overlay.
+   * 
+   * @param waypoint the waypoint
+   */
+  public void addWaypoint(Waypoint waypoint) {
+    // Note: We don't cache waypoints because it's not worth the effort.
+    if (waypoint != null && waypoint.getLocation() != null) {
+      synchronized (waypoints) {
+        waypoints.add(waypoint);
+      }
+    }
+  }
+
+  /**
+   * Clears the waypoints.
+   */
+  public void clearWaypoints() {
+    synchronized (waypoints) {
+      waypoints.clear();
+    }
+  }
+
+  /**
+   * Sets whether to draw the track or not.
+   * 
+   * @param trackDrawingEnabled true to draw track
+   */
+  public void setTrackDrawingEnabled(boolean trackDrawingEnabled) {
+    this.trackDrawingEnabled = trackDrawingEnabled;
+  }
+
+  /**
+   * Sets whether to draw the end maker or not.
+   * 
+   * @param showEndMarker true to draw end marker
+   */
+  public void setShowEndMarker(boolean showEndMarker) {
+    this.showEndMarker = showEndMarker;
+  }
+
+  /**
+   * Sets my location.
+   * 
+   * @param myLocation my location
+   */
+  public void setMyLocation(Location myLocation) {
+    this.myLocation = myLocation;
+  }
+
+  /**
+   * Sets the heading.
+   * 
+   * @param heading the heading
+   * @return true if the visible heading has changed.
+   */
+  public boolean setHeading(float heading) {
+    /*
+     * Use -heading because the arrow images are counter-clockwise rather than
+     * clockwise.
+     */
+    int index = Math.round(-heading / 360 * 18);
+    while (index < 0) {
+      index += 18;
+    }
+    while (index > 17) {
+      index -= 18;
+    }
+    if (index != headingIndex) {
+      headingIndex = index;
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  @Override
+  public void draw(Canvas canvas, MapView mapView, boolean shadow) {
+    if (shadow) {
+      return;
+    }
+
+    // It's safe to keep projection within a single draw operation
+    Projection projection = getMapProjection(mapView);
+    if (projection == null) {
+      Log.w(TAG, "No projection, unable to draw.");
+      return;
+    }
+
+    if (trackDrawingEnabled) {
+      // Get the current viewing Rect
+      Rect viewRect = getMapViewRect(mapView);
+
+      // Draw the selected track
+      drawTrack(canvas, projection, viewRect);
+
+      // Draw the start and end markers
+      drawMarkers(canvas, projection);
+
+      // Draw the waypoints
+      drawWaypoints(canvas, projection);
+    }
+
+    // Draw the current location
+    drawMyLocation(canvas, projection);
+  }
+
+  @Override
+  public boolean onTap(GeoPoint geoPoint, MapView mapView) {
+    if (geoPoint.equals(mapView.getMapCenter())) {
+      /*
+       * There is (unfortunately) no good way to determine whether the tap was
+       * caused by an actual tap on the screen or the track ball. If the
+       * location is equal to the map center,then it was a track ball press with
+       * very high likelihood.
+       */
+      return false;
+    }
+    final Location tapLocation = LocationUtils.getLocation(geoPoint);
+    double minDistance = Double.MAX_VALUE;
+    Waypoint waypoint = null;
+    synchronized (waypoints) {
+      for (int i = 0; i < waypoints.size(); i++) {
+        final Location waypointLocation = waypoints.get(i).getLocation();
+        if (waypointLocation == null) {
+          continue;
+        }
+        final double distance = waypointLocation.distanceTo(tapLocation);
+        if (distance < minDistance) {
+          minDistance = distance;
+          waypoint = waypoints.get(i);
+        }
+      }
+    }
+
+    if (waypoint != null && minDistance < 15000000 / Math.pow(2, mapView.getZoomLevel())) {
+      Intent intent = IntentUtils.newIntent(context, MarkerDetailActivity.class)
+          .putExtra(MarkerDetailActivity.EXTRA_MARKER_ID, waypoint.getId());
+      context.startActivity(intent);
+      return true;
+    }
+    return super.onTap(geoPoint, mapView);
+  }
+
+  @Override
+  public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+    if (PreferencesUtils.getKey(context, R.string.track_color_mode_key).equals(key)) {
+      trackPathPainter = TrackPathPainterFactory.getTrackPathPainter(context);
+    }
+  }
+
+  /**
+   * Gets the points.
+   */
+  @VisibleForTesting
+  public List<CachedLocation> getPoints() {
+    return points;
+  }
+
+  /**
+   * Gets the track path painter.
+   */
+  @VisibleForTesting
+  public TrackPathPainter getTrackPathPainter() {
+    return trackPathPainter;
+  }
+
+  /**
+   * Sets the track path painter.
+   * 
+   * @param trackPathPainter the track path painter
+   */
+  @VisibleForTesting
+  public void setTrackPathPainter(TrackPathPainter trackPathPainter) {
+    this.trackPathPainter = trackPathPainter;
+  }
+
+  /**
+   * Gets the map view projection.
+   * 
+   * @param mapView the map view
+   */
+  @VisibleForTesting
+  protected Projection getMapProjection(MapView mapView) {
+    return mapView.getProjection();
+  }
+
+  /**
+   * Gets the map view Rect.
+   * 
+   * @param mapView the map view
+   */
+  @VisibleForTesting
+  protected Rect getMapViewRect(MapView mapView) {
+    int width = mapView.getLongitudeSpan();
+    int height = mapView.getLatitudeSpan();
+    int centerX = mapView.getMapCenter().getLongitudeE6();
+    int centerY = mapView.getMapCenter().getLatitudeE6();
+    return new Rect(centerX - width / 2, centerY - height / 2, centerX + width / 2, centerY + height
+        / 2);
+  }
+
+  /**
+   * Gets number of locations.
+   */
+  @VisibleForTesting
+  int getNumLocations() {
+    synchronized (points) {
+      return points.size() + pendingPoints.size();
+    }
+  }
+
+  /**
+   * Gets number of waypoints.
+   */
+  @VisibleForTesting
+  int getNumWaypoints() {
+    synchronized (waypoints) {
+      return waypoints.size();
+    }
+  }
+
+  /**
+   * Draws the track.
+   * 
+   * @param canvas the canvas
+   * @param projection the projection
+   * @param viewRect the view rect
+   */
+  private void drawTrack(Canvas canvas, Projection projection, Rect viewRect) {
+    boolean draw;
+
+    synchronized (points) {
+      // Merge the pending points with the list of cached locations.
+      GeoPoint referencePoint = projection.fromPixels(0, 0);
+      int newPoints = pendingPoints.drainTo(points);
+      boolean newProjection = !viewRect.equals(lastViewRect)
+          || !referencePoint.equals(lastReferencePoint);
+      // Call updateState first to trigger its side effects.
+      boolean currentPathValid = !trackPathPainter.updateState() && !newProjection
+          && trackPathPainter.hasPath();
+      if (newPoints == 0 && currentPathValid) {
+        // No need to update
+        draw = true;
+      } else {
+        int numPoints = points.size();
+        if (numPoints < 2) {
+          // Not enough points to draw a path
+          draw = false;
+        } else if (currentPathValid) {
+          // Incremental update of the path
+          draw = true;
+          trackPathPainter.updatePath(projection, viewRect, numPoints - newPoints, points);
+        } else {
+          // Reload the path
+          draw = true;
+          trackPathPainter.clearPath();
+          trackPathPainter.updatePath(projection, viewRect, 0, points);
+        }
+      }
+      lastReferencePoint = referencePoint;
+      lastViewRect = viewRect;
+    }
+    if (draw) {
+      trackPathPainter.drawPath(canvas);
+    }
+  }
+
+  /**
+   * Draws the start and end markers.
+   * 
+   * @param canvas the canvas
+   * @param projection the projection
+   */
+  private void drawMarkers(Canvas canvas, Projection projection) {
+    int offsetY = (int) (markerHeight * Constants.MARKER_Y_OFFSET_PERCENTAGE);
+    // Draw the end marker
+    if (showEndMarker) {
+      for (int i = points.size() - 1; i >= 0; i--) {
+        if (points.get(i).valid) {
+          drawElement(
+              canvas, projection, points.get(i).geoPoint, endMarker, -markerWidth / 2, -offsetY);
+          break;
+        }
+      }
+    }
+
+    // Draw the start marker
+    for (int i = 0; i < points.size(); i++) {
+      if (points.get(i).valid) {
+        drawElement(
+            canvas, projection, points.get(i).geoPoint, startMarker, -markerWidth / 2, -offsetY);
+        break;
+      }
+    }
+  }
+
+  /**
+   * Draws the waypoints.
+   * 
+   * @param canvas the canvas
+   * @param projection the projection
+   */
+  private void drawWaypoints(Canvas canvas, Projection projection) {
+    synchronized (waypoints) {
+      int offsetX = (int) (markerWidth * Constants.WAYPOINT_X_OFFSET_PERCENTAGE);
+      for (Waypoint waypoint : waypoints) {
+        Location location = waypoint.getLocation();
+        Drawable drawable = waypoint.getType() == Waypoint.TYPE_STATISTICS ? statsMarker
+            : waypointMarker;
+        drawElement(canvas, projection, LocationUtils.getGeoPoint(location), drawable, -offsetX,
+            -markerHeight);
+      }
+    }
+  }
+
+  /**
+   * Draws my location.
+   * 
+   * @param canvas the canvas
+   * @param projection the projection
+   */
+  private void drawMyLocation(Canvas canvas, Projection projection) {
+    if (myLocation == null) {
+      return;
+    }
+    Point point = drawElement(canvas, projection, LocationUtils.getGeoPoint(myLocation),
+        arrows[headingIndex], -(arrowWidth / 2), -(arrowHeight / 2));
+    // Draw the error circle
+    float radius = projection.metersToEquatorPixels(myLocation.getAccuracy());
+    canvas.drawCircle(point.x, point.y, radius, errorCirclePaint);
+  }
+
+  /**
+   * Draws an element.
+   * 
+   * @param canvas the canvas
+   * @param projection the projection
+   * @param geoPoint the geo point
+   * @param drawable the drawable
+   * @param offsetX the x offset
+   * @param offsetY the y offset
+   * @return the point of the drawing.
+   */
+  private Point drawElement(Canvas canvas, Projection projection, GeoPoint geoPoint,
+      Drawable drawable, int offsetX, int offsetY) {
+    Point point = new Point();
+    projection.toPixels(geoPoint, point);
+    canvas.save();
+    canvas.translate(point.x + offsetX, point.y + offsetY);
+    drawable.draw(canvas);
+    canvas.restore();
+    return point;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/MarkerDetailActivity.java

@@ -0,0 +1,131 @@
+/*
+ * Copyright 2009 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.fragments.DeleteOneMarkerDialogFragment;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.StatsUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.TextView;
+
+/**
+ * An activity to display marker detail info.
+ *
+ * @author Leif Hendrik Wilden
+ */
+public class MarkerDetailActivity extends AbstractMyTracksActivity {
+
+  public static final String EXTRA_MARKER_ID = "marker_id";
+  private static final String TAG = MarkerDetailActivity.class.getSimpleName();
+
+  private long markerId;
+  private Waypoint waypoint;
+
+  private TextView name;
+  private View waypointSection;
+  private View statisticsSection;
+
+  @Override
+  protected void onCreate(Bundle bundle) {
+    super.onCreate(bundle);
+    setContentView(R.layout.marker_detail);
+
+    markerId = getIntent().getLongExtra(EXTRA_MARKER_ID, -1L);
+    if (markerId == -1L) {
+      Log.d(TAG, "invalid marker id");
+      finish();
+      return;
+    }
+    name = (TextView) findViewById(R.id.marker_detail_name);
+    waypointSection = findViewById(R.id.marker_detail_waypoint_section);
+    statisticsSection = findViewById(R.id.marker_detail_statistics_section);
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+    waypoint = MyTracksProviderUtils.Factory.get(this).getWaypoint(markerId);
+    if (waypoint == null) {
+      Log.d(TAG, "waypoint is null");
+      finish();
+      return;
+    }
+    name.setText(getString(R.string.generic_name_line, waypoint.getName()));
+    if (waypoint.getType() == Waypoint.TYPE_WAYPOINT) {
+      waypointSection.setVisibility(View.VISIBLE);
+      statisticsSection.setVisibility(View.GONE);
+
+      TextView markerType = (TextView) findViewById(R.id.marker_detail_waypoint_marker_type);
+      markerType.setText(getString(
+          R.string.marker_detail_waypoint_marker_type, waypoint.getCategory()));
+      TextView description = (TextView) findViewById(R.id.marker_detail_waypoint_description);
+      description.setText(getString(R.string.generic_description_line, waypoint.getDescription()));
+    } else {
+      waypointSection.setVisibility(View.GONE);
+      statisticsSection.setVisibility(View.VISIBLE);
+      StatsUtils.setTripStatisticsValues(this, waypoint.getTripStatistics());
+      StatsUtils.setLocationValues(this, waypoint.getLocation(), false);
+    }
+  }
+  
+  @Override
+  public boolean onCreateOptionsMenu(Menu menu) {
+    getMenuInflater().inflate(R.menu.marker_detail, menu);
+    return true;
+  }
+
+  @Override
+  protected void onHomeSelected() {
+    Intent intent = IntentUtils.newIntent(this, MarkerListActivity.class)
+        .putExtra(MarkerListActivity.EXTRA_TRACK_ID, waypoint.getTrackId());
+    startActivity(intent);
+    finish();
+  }
+  
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    Intent intent;
+    switch (item.getItemId()) {
+      case R.id.marker_detail_show_on_map:
+        intent = IntentUtils.newIntent(this, TrackDetailActivity.class)
+            .putExtra(TrackDetailActivity.EXTRA_MARKER_ID, markerId);
+        startActivity(intent);
+        return true;
+      case R.id.marker_detail_edit:
+        intent = IntentUtils.newIntent(this, MarkerEditActivity.class)
+            .putExtra(MarkerEditActivity.EXTRA_MARKER_ID, markerId);
+        startActivity(intent);
+        return true;
+      case R.id.marker_detail_delete:
+        DeleteOneMarkerDialogFragment.newInstance(markerId, waypoint.getTrackId()).show(
+            getSupportFragmentManager(),
+            DeleteOneMarkerDialogFragment.DELETE_ONE_MARKER_DIALOG_TAG);
+        return true;
+      default:
+        return super.onOptionsItemSelected(item);
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/MarkerEditActivity.java

@@ -0,0 +1,187 @@
+/*
+ * Copyright 2012 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.content.WaypointCreationRequest;
+import com.google.android.apps.mytracks.content.WaypointCreationRequest.WaypointType;
+import com.google.android.apps.mytracks.services.TrackRecordingServiceConnection;
+import com.google.android.apps.mytracks.util.TrackRecordingServiceConnectionUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.ArrayAdapter;
+import android.widget.AutoCompleteTextView;
+import android.widget.Button;
+import android.widget.EditText;
+
+/**
+ * An activity to add/edit a marker.
+ *
+ * @author Jimmy Shih
+ */
+public class MarkerEditActivity extends AbstractMyTracksActivity {
+
+  private static final String TAG = MarkerEditActivity.class.getSimpleName();
+
+  public static final String EXTRA_TRACK_ID = "track_id";
+  public static final String EXTRA_MARKER_ID = "marker_id";
+
+  private long trackId;
+  private long markerId;
+  private TrackRecordingServiceConnection trackRecordingServiceConnection;
+  private Waypoint waypoint;
+
+  // UI elements
+  private View statisticsSection;
+  private EditText statisticsName;
+  private View waypointSection;
+  private EditText waypointName;
+  private AutoCompleteTextView waypointMarkerType;
+  private EditText waypointDescription;
+  private Button done;
+
+  @Override
+  protected void onCreate(Bundle bundle) {
+    super.onCreate(bundle);
+    setContentView(R.layout.marker_edit);
+
+    trackId = getIntent().getLongExtra(EXTRA_TRACK_ID, -1L);
+    markerId = getIntent().getLongExtra(EXTRA_MARKER_ID, -1L);
+    trackRecordingServiceConnection = new TrackRecordingServiceConnection(this, null);
+        
+    // Setup UI elements
+    statisticsSection = findViewById(R.id.marker_edit_statistics_section);
+    statisticsName = (EditText) findViewById(R.id.marker_edit_statistics_name);
+    
+    waypointSection = findViewById(R.id.marker_edit_waypoint_section);
+    waypointName = (EditText) findViewById(R.id.marker_edit_waypoint_name);   
+    waypointMarkerType = (AutoCompleteTextView) findViewById(R.id.marker_edit_waypoint_marker_type);
+    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
+        this, R.array.waypoint_types, android.R.layout.simple_dropdown_item_1line);
+    waypointMarkerType.setAdapter(adapter);
+    waypointDescription = (EditText) findViewById(R.id.marker_edit_waypoint_description);
+
+    Button cancel = (Button) findViewById(R.id.marker_edit_cancel);
+    cancel.setOnClickListener(new OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        finish();
+      }
+    });
+    done = (Button) findViewById(R.id.marker_edit_done);
+    updateUiByMarkerId();
+  }
+
+  /**
+   * Updates the UI based on the marker id.
+   */
+  private void updateUiByMarkerId() {
+    final boolean newMarker = markerId == -1L;
+
+    setTitle(newMarker ? R.string.menu_insert_marker : R.string.menu_edit);
+    done.setText(newMarker ? R.string.generic_add : R.string.generic_save);
+    done.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        if (newMarker) {
+          addMarker();
+        } else {
+          saveMarker();
+        }
+        finish();
+      }
+    });
+
+    if (newMarker) {
+      statisticsSection.setVisibility(View.GONE);
+      waypointSection.setVisibility(View.VISIBLE);
+      int nextMarkerNumber = trackId == -1L ? -1
+          : MyTracksProviderUtils.Factory.get(this).getNextMarkerNumber(trackId, false);
+      if (nextMarkerNumber == -1) {
+        nextMarkerNumber = 0;
+      }
+      waypointName.setText(getString(R.string.marker_name_format, nextMarkerNumber));
+      waypointName.selectAll();
+      waypointMarkerType.setText("");
+      waypointDescription.setText("");
+    } else {
+      waypoint = MyTracksProviderUtils.Factory.get(this).getWaypoint(markerId);
+      if (waypoint == null) {
+        Log.d(TAG, "waypoint is null");
+        finish();
+        return;
+      }
+      boolean statistics = waypoint.getType() == Waypoint.TYPE_STATISTICS;
+      statisticsSection.setVisibility(statistics ? View.VISIBLE : View.GONE);
+      waypointSection.setVisibility(statistics ? View.GONE : View.VISIBLE);
+      if (statistics) {
+        statisticsName.setText(waypoint.getName());
+      } else {
+        waypointName.setText(waypoint.getName());
+        waypointMarkerType.setText(waypoint.getCategory());
+        waypointDescription.setText(waypoint.getDescription());
+      }  
+    }
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+    TrackRecordingServiceConnectionUtils.resume(this, trackRecordingServiceConnection);
+  }
+
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    trackRecordingServiceConnection.unbind();
+  }
+
+  /**
+   * Adds a marker.
+   */
+  private void addMarker() {
+    WaypointCreationRequest waypointCreationRequest = new WaypointCreationRequest(
+        WaypointType.WAYPOINT,
+        false,
+        waypointName.getText().toString(),
+        waypointMarkerType.getText().toString(),
+        waypointDescription.getText().toString(),
+        getString(R.string.marker_waypoint_icon_url));
+    TrackRecordingServiceConnectionUtils.addMarker(
+        this, trackRecordingServiceConnection, waypointCreationRequest);
+  }
+
+  /**
+   * Saves a marker.
+   */
+  private void saveMarker() {
+    boolean statistics = waypoint.getType() == Waypoint.TYPE_STATISTICS;
+    if (statistics) {
+      waypoint.setName(statisticsName.getText().toString());
+    } else {
+      waypoint.setName(waypointName.getText().toString());
+      waypoint.setCategory(waypointMarkerType.getText().toString());
+      waypoint.setDescription(waypointDescription.getText().toString());
+    }
+    MyTracksProviderUtils.Factory.get(this).updateWaypoint(waypoint);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/MarkerListActivity.java

@@ -0,0 +1,262 @@
+/*
+ * Copyright 2009 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.content.WaypointsColumns;
+import com.google.android.apps.mytracks.fragments.DeleteOneMarkerDialogFragment;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.ListItemUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.database.Cursor;
+import android.os.Bundle;
+import android.support.v4.app.LoaderManager.LoaderCallbacks;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.support.v4.widget.ResourceCursorAdapter;
+import android.util.Log;
+import android.view.ContextMenu;
+import android.view.ContextMenu.ContextMenuInfo;
+import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.AdapterView.AdapterContextMenuInfo;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.ListView;
+
+/**
+ * Activity to show a list of markers in a track.
+ *
+ * @author Leif Hendrik Wilden
+ */
+public class MarkerListActivity extends AbstractMyTracksActivity {
+ 
+  public static final String EXTRA_TRACK_ID = "track_id";
+
+  private static final String TAG = MarkerListActivity.class.getSimpleName();
+  
+  private static final String[] PROJECTION = new String[] {
+      WaypointsColumns._ID,
+      WaypointsColumns.NAME,
+      WaypointsColumns.DESCRIPTION,
+      WaypointsColumns.CATEGORY,
+      WaypointsColumns.TYPE,
+      WaypointsColumns.TIME};
+
+  // Callback when an item is selected in the contextual action mode
+  private ContextualActionModeCallback contextualActionModeCallback =
+    new ContextualActionModeCallback() {
+    @Override
+    public boolean onClick(int itemId, int position, long id) {
+      return handleContextItem(itemId, id);
+    }
+  };
+
+  /*
+   * Note that sharedPreferenceChangeListener cannot be an anonymous inner
+   * class. Anonymous inner class will get garbage collected.
+   */
+  private final OnSharedPreferenceChangeListener
+      sharedPreferenceChangeListener = new OnSharedPreferenceChangeListener() {
+          @Override
+        public void onSharedPreferenceChanged(SharedPreferences preferences, String key) {
+          // Note that key can be null
+          if (PreferencesUtils.getKey(MarkerListActivity.this, R.string.recording_track_id_key)
+              .equals(key)) {
+            updateMenu();
+          }
+        }
+      };
+
+  private long trackId = -1;
+  private ResourceCursorAdapter resourceCursorAdapter;
+
+  // UI elements
+  private MenuItem insertMarkerMenuItem;
+  private MenuItem searchMenuItem;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    
+    trackId = getIntent().getLongExtra(EXTRA_TRACK_ID, -1L);
+    if (trackId == -1L) {
+      Log.d(TAG, "invalid track id");
+      finish();
+      return;
+    }
+    
+    setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
+    setContentView(R.layout.marker_list);
+
+    getSharedPreferences(Constants.SETTINGS_NAME, Context.MODE_PRIVATE)
+        .registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
+
+    ListView listView = (ListView) findViewById(R.id.marker_list);
+    listView.setEmptyView(findViewById(R.id.marker_list_empty));
+    listView.setOnItemClickListener(new OnItemClickListener() {
+      @Override
+      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        Intent intent = IntentUtils.newIntent(MarkerListActivity.this, MarkerDetailActivity.class)
+            .putExtra(MarkerDetailActivity.EXTRA_MARKER_ID, id);
+        startActivity(intent);
+      }
+    });
+    resourceCursorAdapter = new ResourceCursorAdapter(this, R.layout.list_item, null, 0) {
+      @Override
+      public void bindView(View view, Context context, Cursor cursor) {
+        int nameIndex = cursor.getColumnIndex(WaypointsColumns.NAME);
+        int descriptionIndex = cursor.getColumnIndex(WaypointsColumns.DESCRIPTION);
+        int categoryIndex = cursor.getColumnIndex(WaypointsColumns.CATEGORY);
+        int typeIndex = cursor.getColumnIndex(WaypointsColumns.TYPE);
+        int timeIndex = cursor.getColumnIndexOrThrow(WaypointsColumns.TIME);
+
+        boolean statistics = cursor.getInt(typeIndex) == Waypoint.TYPE_STATISTICS;
+        String name = cursor.getString(nameIndex);
+        int iconId = statistics ? R.drawable.yellow_pushpin : R.drawable.blue_pushpin;
+        String contentDescription = getString(R.string.icon_marker);
+        String category = statistics ? null : cursor.getString(categoryIndex);
+        long time = cursor.getLong(timeIndex);
+        String description = statistics ? null : cursor.getString(descriptionIndex);
+        ListItemUtils.setListItem(MarkerListActivity.this,
+            view, name, iconId, contentDescription, category, null, null, time, description);
+      }
+    };
+    listView.setAdapter(resourceCursorAdapter);
+    ApiAdapterFactory.getApiAdapter()
+        .configureListViewContextualMenu(this, listView, contextualActionModeCallback);
+
+    final long firstWaypointId = MyTracksProviderUtils.Factory.get(this)
+        .getFirstWaypointId(trackId);
+    getSupportLoaderManager().initLoader(0, null, new LoaderCallbacks<Cursor>() {
+      @Override
+      public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
+        return new CursorLoader(MarkerListActivity.this,
+            WaypointsColumns.CONTENT_URI,
+            PROJECTION,
+            WaypointsColumns.TRACKID + "=? AND " + WaypointsColumns._ID + "!=?",
+            new String[] { String.valueOf(trackId), String.valueOf(firstWaypointId) },
+            null);
+      }
+
+      @Override
+      public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
+        resourceCursorAdapter.swapCursor(cursor);
+      }
+
+      @Override
+      public void onLoaderReset(Loader<Cursor> loader) {
+        resourceCursorAdapter.swapCursor(null);
+      }
+    });
+  }
+
+  @Override
+  public boolean onCreateOptionsMenu(Menu menu) {
+    getMenuInflater().inflate(R.menu.marker_list, menu);
+    insertMarkerMenuItem = menu.findItem(R.id.marker_list_insert_marker);
+    searchMenuItem = menu.findItem(R.id.marker_list_search);
+    ApiAdapterFactory.getApiAdapter().configureSearchWidget(this, searchMenuItem);
+    updateMenu();
+    return true;
+  }
+
+  private void updateMenu() {
+    if (insertMarkerMenuItem != null) {
+      insertMarkerMenuItem.setVisible(
+          trackId == PreferencesUtils.getLong(this, R.string.recording_track_id_key));
+    }
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    switch (item.getItemId()) {
+      case R.id.marker_list_insert_marker:
+        Intent intent = IntentUtils.newIntent(this, MarkerEditActivity.class)
+            .putExtra(MarkerEditActivity.EXTRA_TRACK_ID, trackId);
+        startActivity(intent);
+        return true;
+      case R.id.marker_list_search:
+        return ApiAdapterFactory.getApiAdapter().handleSearchMenuSelection(this);
+      default:
+        return super.onOptionsItemSelected(item);
+    }
+  }
+
+  @Override
+  public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
+    super.onCreateContextMenu(menu, v, menuInfo);
+    getMenuInflater().inflate(R.menu.list_context_menu, menu);
+  }
+
+  @Override
+  public boolean onContextItemSelected(MenuItem item) {
+    if (handleContextItem(
+        item.getItemId(), ((AdapterContextMenuInfo) item.getMenuInfo()).id)) {
+      return true;
+    }
+    return super.onContextItemSelected(item);
+  }
+
+  /**
+   * Handles a context item selection.
+   *
+   * @param itemId the menu item id
+   * @param markerId the marker id
+   * @return true if handled.
+   */
+  private boolean handleContextItem(int itemId, long markerId) {
+    Intent intent;
+    switch (itemId) {
+      case R.id.list_context_menu_show_on_map:
+        intent = IntentUtils.newIntent(this, TrackDetailActivity.class)
+            .putExtra(TrackDetailActivity.EXTRA_MARKER_ID, markerId);
+        startActivity(intent);
+        return true;
+      case R.id.list_context_menu_edit:
+        intent = IntentUtils.newIntent(this, MarkerEditActivity.class)
+            .putExtra(MarkerEditActivity.EXTRA_MARKER_ID, markerId);
+        startActivity(intent);
+        return true;
+      case R.id.list_context_menu_delete:
+        DeleteOneMarkerDialogFragment.newInstance(markerId, trackId).show(
+            getSupportFragmentManager(),
+            DeleteOneMarkerDialogFragment.DELETE_ONE_MARKER_DIALOG_TAG);
+        return true;
+      default:
+        return false;
+    }
+  }
+
+  @Override
+  public boolean onKeyUp(int keyCode, KeyEvent event) {
+    if (keyCode == KeyEvent.KEYCODE_SEARCH) {
+      if (ApiAdapterFactory.getApiAdapter().handleSearchKey(searchMenuItem)) { return true; }
+    }
+    return super.onKeyUp(keyCode, event);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/MyTracksApplication.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.services.RemoveTempFilesService;
+import com.google.android.apps.mytracks.util.AnalyticsUtils;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+import com.google.android.maps.mytracks.BuildConfig;
+
+import android.app.Application;
+import android.content.Intent;
+
+/**
+ * MyTracksApplication for keeping global state.
+ * 
+ * @author Jimmy Shih
+ */
+public class MyTracksApplication extends Application {
+
+  @Override
+  public void onCreate() {
+    super.onCreate();
+    if (BuildConfig.DEBUG) {
+      ApiAdapterFactory.getApiAdapter().enableStrictMode();
+    }
+    AnalyticsUtils.sendPageViews(getApplicationContext(), "/appstart");
+    Intent intent = new Intent(this, RemoveTempFilesService.class);
+    startService(intent);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/SearchListActivity.java

@@ -0,0 +1,444 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.SearchEngine;
+import com.google.android.apps.mytracks.content.SearchEngine.ScoredResult;
+import com.google.android.apps.mytracks.content.SearchEngine.SearchQuery;
+import com.google.android.apps.mytracks.content.SearchEngineProvider;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.fragments.DeleteOneMarkerDialogFragment;
+import com.google.android.apps.mytracks.fragments.DeleteOneTrackDialogFragment;
+import com.google.android.apps.mytracks.fragments.DeleteOneTrackDialogFragment.DeleteOneTrackCaller;
+import com.google.android.apps.mytracks.services.TrackRecordingServiceConnection;
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.ListItemUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.apps.mytracks.util.TrackIconUtils;
+import com.google.android.apps.mytracks.util.TrackRecordingServiceConnectionUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.SearchManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.location.Location;
+import android.location.LocationManager;
+import android.os.Bundle;
+import android.provider.SearchRecentSuggestions;
+import android.util.Log;
+import android.view.ContextMenu;
+import android.view.ContextMenu.ContextMenuInfo;
+import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.AdapterView.AdapterContextMenuInfo;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.SortedSet;
+
+/**
+ * An activity to display a list of search results.
+ * 
+ * @author Rodrigo Damazio
+ */
+public class SearchListActivity extends AbstractMyTracksActivity implements DeleteOneTrackCaller {
+
+  private static final String TAG = SearchListActivity.class.getSimpleName();
+
+  private static final String NAME_FIELD = "name";
+  private static final String ICON_FIELD = "icon";
+  private static final String ICON_CONTENT_DESCRIPTION_FIELD = "iconContentDescription";
+  private static final String CATEGORY_FIELD = "category";
+  private static final String TOTAL_TIME_FIELD = "totalTime";
+  private static final String TOTAL_DISTANCE_FIELD = "totalDistance";
+  private static final String START_TIME_FIELD = "startTime";
+  private static final String DESCRIPTION_FIELD = "description";
+  private static final String TRACK_ID_FIELD = "trackId";
+  private static final String MARKER_ID_FIELD = "markerId";
+
+  private final OnSharedPreferenceChangeListener
+      sharedPreferenceChangeListener = new OnSharedPreferenceChangeListener() {
+          @Override
+        public void onSharedPreferenceChanged(SharedPreferences preferences, String key) {
+          if (PreferencesUtils.getKey(SearchListActivity.this, R.string.recording_track_id_key)
+              .equals(key)) {
+            recordingTrackId = PreferencesUtils.getLong(
+                SearchListActivity.this, R.string.recording_track_id_key);
+            arrayAdapter.notifyDataSetChanged();
+          }
+        }
+      };
+
+  // Callback when an item is selected in the contextual action mode
+  private ContextualActionModeCallback
+      contextualActionModeCallback = new ContextualActionModeCallback() {
+        @Override
+        public boolean onClick(int itemId, int position, long id) {
+          return handleContextItem(itemId, position);
+        }
+      };
+
+  private TrackRecordingServiceConnection trackRecordingServiceConnection;
+  private MyTracksProviderUtils myTracksProviderUtils;
+  private SearchEngine searchEngine;
+  private SearchRecentSuggestions searchRecentSuggestions;
+  private LocationManager locationManager;
+  private long recordingTrackId;
+  private boolean metricUnits;
+  private ArrayAdapter<Map<String, Object>> arrayAdapter;
+
+  // UI elements
+  private ListView listView;
+  private MenuItem searchMenuItem;
+  
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
+    setContentView(R.layout.search_list);
+
+    trackRecordingServiceConnection = new TrackRecordingServiceConnection(this, null);
+    myTracksProviderUtils = MyTracksProviderUtils.Factory.get(this);
+    searchEngine = new SearchEngine(myTracksProviderUtils);
+    searchRecentSuggestions = SearchEngineProvider.newHelper(this);
+    locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
+    getSharedPreferences(Constants.SETTINGS_NAME, Context.MODE_PRIVATE)
+        .registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
+    recordingTrackId = PreferencesUtils.getLong(this, R.string.recording_track_id_key);
+
+    listView = (ListView) findViewById(R.id.search_list);
+    listView.setEmptyView(findViewById(R.id.search_list_empty));
+    listView.setOnItemClickListener(new OnItemClickListener() {
+      @Override
+      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        Map<String, Object> item = arrayAdapter.getItem(position);
+        Long trackId = (Long) item.get(TRACK_ID_FIELD);
+        Long markerId = (Long) item.get(MARKER_ID_FIELD);
+        Intent intent;
+        if (markerId != null) {
+          intent = IntentUtils.newIntent(SearchListActivity.this, TrackDetailActivity.class)
+              .putExtra(TrackDetailActivity.EXTRA_MARKER_ID, markerId);
+        } else {
+          intent = IntentUtils.newIntent(SearchListActivity.this, TrackDetailActivity.class)
+              .putExtra(TrackDetailActivity.EXTRA_TRACK_ID, trackId);
+        }
+        startActivity(intent);
+      }
+    });
+    arrayAdapter = new ArrayAdapter<Map<String, Object>>(
+        this, R.layout.list_item, R.id.list_item_name) {
+      @Override
+      public View getView(int position, View convertView, android.view.ViewGroup parent) {
+        View view;
+        if (convertView == null) {
+          view = getLayoutInflater().inflate(R.layout.list_item, parent, false);
+        } else {
+          view = convertView;
+        }
+        Map<String, Object> resultMap = getItem(position);
+        String name = (String) resultMap.get(NAME_FIELD);
+        int iconId = (Integer) resultMap.get(ICON_FIELD);
+        String iconContentDescription = (String) resultMap.get(ICON_CONTENT_DESCRIPTION_FIELD);
+        String category = (String) resultMap.get(CATEGORY_FIELD);
+        String totalTime = (String) resultMap.get(TOTAL_TIME_FIELD);
+        String totalDistance = (String) resultMap.get(TOTAL_DISTANCE_FIELD);
+        long startTime = (Long) resultMap.get(START_TIME_FIELD);
+        String description = (String) resultMap.get(DESCRIPTION_FIELD);
+        ListItemUtils.setListItem(SearchListActivity.this,
+            view,
+            name,
+            iconId,
+            iconContentDescription,
+            category,
+            totalTime,
+            totalDistance,
+            startTime,
+            description);
+        return view;
+      }
+    };
+    listView.setAdapter(arrayAdapter);
+    ApiAdapterFactory.getApiAdapter()
+        .configureListViewContextualMenu(this, listView, contextualActionModeCallback);
+    handleIntent(getIntent());
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+    TrackRecordingServiceConnectionUtils.resume(this, trackRecordingServiceConnection);
+    metricUnits = PreferencesUtils.getBoolean(
+        this, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+  }
+
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    trackRecordingServiceConnection.unbind();
+  }
+
+  @Override
+  public void onNewIntent(Intent intent) {
+    setIntent(intent);
+    handleIntent(intent);
+  }
+
+  @Override
+  public boolean onCreateOptionsMenu(Menu menu) {
+    getMenuInflater().inflate(R.menu.search_list, menu);
+    searchMenuItem = menu.findItem(R.id.search_list_search);
+    ApiAdapterFactory.getApiAdapter().configureSearchWidget(this, searchMenuItem);
+    return true;
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    switch (item.getItemId()) {
+      case R.id.search_list_search:
+        return ApiAdapterFactory.getApiAdapter().handleSearchMenuSelection(this);
+      default:
+        return super.onOptionsItemSelected(item);
+    }
+  }
+
+  @Override
+  public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
+    super.onCreateContextMenu(menu, v, menuInfo);
+    getMenuInflater().inflate(R.menu.list_context_menu, menu);
+  }
+
+  @Override
+  public boolean onContextItemSelected(MenuItem item) {
+    AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) item.getMenuInfo();
+    if (handleContextItem(item.getItemId(), adapterContextMenuInfo.position)) {
+      return true;
+     }
+    return super.onContextItemSelected(item);
+  }
+
+  @Override
+  public boolean onKeyUp(int keyCode, KeyEvent event) {
+    if (keyCode == KeyEvent.KEYCODE_SEARCH) {
+      if (ApiAdapterFactory.getApiAdapter().handleSearchKey(searchMenuItem)) {
+        return true;
+      }
+    }
+    return super.onKeyUp(keyCode, event);
+  }
+
+  /**
+   * Handles a context item selection.
+   * 
+   * @param itemId the menu item id
+   * @param position the position of the selected row
+   * @return true if handled.
+   */
+  private boolean handleContextItem(int itemId, int position) {
+    Map<String, Object> item = arrayAdapter.getItem(position);
+    Long trackId = (Long) item.get(TRACK_ID_FIELD);
+    Long markerId = (Long) item.get(MARKER_ID_FIELD);
+    Intent intent;
+    switch (itemId) {
+      case R.id.list_context_menu_show_on_map:
+        if (markerId != null) {
+          intent = IntentUtils.newIntent(this, TrackDetailActivity.class)
+              .putExtra(TrackDetailActivity.EXTRA_MARKER_ID, markerId);
+        } else {
+          intent = IntentUtils.newIntent(this, TrackDetailActivity.class)
+              .putExtra(TrackDetailActivity.EXTRA_TRACK_ID, trackId);
+        }
+        startActivity(intent);
+        return true;
+      case R.id.list_context_menu_edit:
+        if (markerId != null) {
+          intent = IntentUtils.newIntent(this, MarkerEditActivity.class)
+              .putExtra(MarkerEditActivity.EXTRA_MARKER_ID, markerId);
+        } else {
+          intent = IntentUtils.newIntent(this, TrackEditActivity.class)
+              .putExtra(TrackEditActivity.EXTRA_TRACK_ID, trackId);
+        }
+        startActivity(intent);
+        // Close the search result since its content can change after edit.
+        finish();
+        return true;
+      case R.id.list_context_menu_delete:
+        if (markerId != null) {
+          DeleteOneMarkerDialogFragment.newInstance(markerId, trackId).show(
+              getSupportFragmentManager(),
+              DeleteOneMarkerDialogFragment.DELETE_ONE_MARKER_DIALOG_TAG);
+        } else {
+          DeleteOneTrackDialogFragment.newInstance(trackId).show(getSupportFragmentManager(),
+              DeleteOneTrackDialogFragment.DELETE_ONE_TRACK_DIALOG_TAG);
+        }
+        return true;
+      default:
+        return false;
+    }
+  }
+
+  /**
+   * Handles the intent.
+   * 
+   * @param intent the intent
+   */
+  private void handleIntent(Intent intent) {
+    if (!Intent.ACTION_SEARCH.equals(intent.getAction())) {
+      Log.e(TAG, "Invalid intent action: " + intent);
+      finish();
+      return;
+    }
+
+    String textQuery = intent.getStringExtra(SearchManager.QUERY);
+    setTitle(textQuery);
+
+    Location currentLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
+    final SearchQuery query = new SearchQuery(textQuery, currentLocation, -1L, System
+        .currentTimeMillis());
+    new Thread() {
+        @Override
+      public void run() {
+        doSearch(query);
+      }
+    }.start();
+  }
+
+  /**
+   * Do the search.
+   * 
+   * @param query the query
+   */
+  private void doSearch(SearchQuery query) {
+    SortedSet<ScoredResult> scoredResults = searchEngine.search(query);
+    final List<Map<String, Object>> displayResults = prepareResultsforDisplay(scoredResults);
+
+    // Use the UI thread to display the results
+    runOnUiThread(new Runnable() {
+        @Override
+      public void run() {
+        arrayAdapter.clear();
+        ApiAdapterFactory.getApiAdapter().addAllToArrayAdapter(arrayAdapter, displayResults);
+      }
+    });
+
+    // Save the query as a suggestion for the future
+    searchRecentSuggestions.saveRecentQuery(query.textQuery, null);
+  }
+
+  /**
+   * Prepares the result for display.
+   * 
+   * @param scoredResults a list of score results
+   * @return a list of result maps
+   */
+  private List<Map<String, Object>> prepareResultsforDisplay(
+      Collection<ScoredResult> scoredResults) {
+    ArrayList<Map<String, Object>> output = new ArrayList<Map<String, Object>>(scoredResults
+        .size());
+    for (ScoredResult result : scoredResults) {
+      Map<String, Object> resultMap = new HashMap<String, Object>();
+      if (result.track != null) {
+        prepareTrackForDisplay(result.track, resultMap);
+      } else {
+        prepareMarkerForDisplay(result.waypoint, resultMap);
+      }
+      output.add(resultMap);
+    }
+    return output;
+  }
+
+  /**
+   * Prepares a marker for display by filling in a result map.
+   * 
+   * @param waypoint the marker
+   * @param resultMap the result map
+   */
+  private void prepareMarkerForDisplay(Waypoint waypoint, Map<String, Object> resultMap) {
+    /*
+     * TODO: It may be more appropriate to obtain the track name as a join in
+     * the retrieval phase of the search.
+     */
+    String trackName = null;
+    long trackId = waypoint.getTrackId();
+    if (trackId != -1L) {
+      Track track = myTracksProviderUtils.getTrack(trackId);
+      if (track != null) {
+        trackName = track.getName();
+      }
+    }
+
+    boolean statistics = waypoint.getType() == Waypoint.TYPE_STATISTICS;
+    resultMap.put(NAME_FIELD, waypoint.getName());
+    resultMap.put(ICON_FIELD, statistics ? R.drawable.yellow_pushpin : R.drawable.blue_pushpin);
+    resultMap.put(ICON_CONTENT_DESCRIPTION_FIELD, getString(R.string.icon_marker));
+    resultMap.put(CATEGORY_FIELD, statistics ? null : waypoint.getCategory());
+    resultMap.put(START_TIME_FIELD, waypoint.getLocation().getTime());
+
+    // Display the marker's track name in the total time field
+    resultMap.put(TOTAL_TIME_FIELD, trackName == null ? null
+        : getString(R.string.search_list_marker_track_location, trackName));
+    resultMap.put(TOTAL_DISTANCE_FIELD, null);
+    resultMap.put(DESCRIPTION_FIELD, statistics ? null : waypoint.getDescription());
+    resultMap.put(TRACK_ID_FIELD, waypoint.getTrackId());
+    resultMap.put(MARKER_ID_FIELD, waypoint.getId());
+  }
+
+  /**
+   * Prepares a track for display by filling in a result map.
+   * 
+   * @param track the track
+   * @param resultMap the result map
+   */
+  private void prepareTrackForDisplay(Track track, Map<String, Object> resultMap) {
+    boolean isRecording = track.getId() == recordingTrackId;
+    TripStatistics tripStatitics = track.getTripStatistics();
+    resultMap.put(NAME_FIELD, track.getName());
+    resultMap.put(ICON_FIELD, isRecording 
+        ? R.drawable.menu_record_track : TrackIconUtils.getIconDrawable(track.getIcon()));
+    resultMap.put(ICON_CONTENT_DESCRIPTION_FIELD, getString(isRecording ? R.string.icon_recording
+        : R.string.icon_track));
+    resultMap.put(CATEGORY_FIELD, track.getCategory());
+    resultMap.put(TOTAL_TIME_FIELD, isRecording ? null : StringUtils.formatElapsedTime(
+        tripStatitics.getTotalTime()));
+    resultMap.put(TOTAL_DISTANCE_FIELD, isRecording ? null : StringUtils.formatDistance(
+        this, tripStatitics.getTotalDistance(), metricUnits));
+    resultMap.put(START_TIME_FIELD, tripStatitics.getStartTime());
+    resultMap.put(DESCRIPTION_FIELD, track.getDescription());
+    resultMap.put(TRACK_ID_FIELD, track.getId());
+    resultMap.put(MARKER_ID_FIELD, null);
+  }
+
+  @Override
+  public TrackRecordingServiceConnection getTrackRecordingServiceConnection() {
+    return trackRecordingServiceConnection;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/SensorStateActivity.java

@@ -0,0 +1,299 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.Sensor;
+import com.google.android.apps.mytracks.services.ITrackRecordingService;
+import com.google.android.apps.mytracks.services.TrackRecordingServiceConnection;
+import com.google.android.apps.mytracks.services.sensors.SensorManager;
+import com.google.android.apps.mytracks.services.sensors.SensorManagerFactory;
+import com.google.android.apps.mytracks.services.sensors.SensorUtils;
+import com.google.android.apps.mytracks.util.TrackRecordingServiceConnectionUtils;
+import com.google.android.maps.mytracks.R;
+import com.google.protobuf.InvalidProtocolBufferException;
+
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.text.format.DateFormat;
+import android.util.Log;
+import android.widget.TextView;
+
+import java.util.Timer;
+import java.util.TimerTask;
+
+/**
+ * An activity that displays information about sensors.
+ * 
+ * @author Sandor Dornbush
+ */
+public class SensorStateActivity extends AbstractMyTracksActivity {
+
+  private static final String TAG = SensorStateActivity.class.getName();
+  private static final long REFRESH_PERIOD_MS = 250;
+
+  /**
+   * A Runnable to update the UI.
+   */
+  private final Runnable updateRunnable = new Runnable() {
+    public void run() {
+      ITrackRecordingService trackRecordingService = trackRecordingServiceConnection
+          .getServiceIfBound();
+
+      // Check if service is available and recording
+      boolean isRecording = false;
+      if (trackRecordingService != null) {
+        try {
+          isRecording = trackRecordingService.isRecording();
+        } catch (RemoteException e) {
+          Log.e(TAG, "Unable to determine if the track recording service is recording.", e);
+        }
+      }
+
+      if (!isRecording) {
+        updateFromTempSensorManager();
+      } else {
+        stopTempSensorManager();
+        updateFromSystemSensorManager();
+      }
+    }
+  };
+
+  /**
+   * A TimeTask to update the UI.
+   */
+  private class UpdateTimerTask extends TimerTask {
+    @Override
+    public void run() {
+      if (isVisible) {
+        runOnUiThread(updateRunnable);
+      }
+    }
+  };
+
+  private TrackRecordingServiceConnection trackRecordingServiceConnection;
+  private boolean isVisible = false;
+  private Timer timer = null;
+  private SensorManager tempSensorManager = null;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.sensor_state);
+    trackRecordingServiceConnection = new TrackRecordingServiceConnection(this, null);
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+    TrackRecordingServiceConnectionUtils.resume(this, trackRecordingServiceConnection);
+    isVisible = true;
+    timer = new Timer();
+    timer.schedule(new UpdateTimerTask(), 0, REFRESH_PERIOD_MS);
+  }
+
+  @Override
+  protected void onPause() {
+    super.onPause();
+    isVisible = false;
+    timer.cancel();
+    timer.purge();
+    timer = null;
+    stopTempSensorManager();
+  }
+
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    trackRecordingServiceConnection.unbind();
+  }
+
+  /**
+   * Stops the temp sensor manager.
+   */
+  private void stopTempSensorManager() {
+    if (tempSensorManager != null) {
+      SensorManagerFactory.releaseTempSensorManager();
+      tempSensorManager = null;
+    }
+  }
+
+  /**
+   * Updates from a temp sensor manager.
+   */
+  private void updateFromTempSensorManager() {
+    Sensor.SensorState sensorState = Sensor.SensorState.NONE;
+    Sensor.SensorDataSet sensorDataSet = null;
+
+    if (tempSensorManager == null) {
+      tempSensorManager = SensorManagerFactory.getTempSensorManager(this);
+    }
+
+    if (tempSensorManager != null) {
+      sensorState = tempSensorManager.getSensorState();
+      sensorDataSet = tempSensorManager.getSensorDataSet();
+    }
+
+    updateSensorStateAndDataSet(sensorState, sensorDataSet);
+  }
+
+  /**
+   * Updates from the system sensor manager.
+   */
+  private void updateFromSystemSensorManager() {
+    Sensor.SensorState sensorState = Sensor.SensorState.NONE;
+    Sensor.SensorDataSet sensorDataSet = null;
+
+    ITrackRecordingService trackRecordingService = trackRecordingServiceConnection
+        .getServiceIfBound();
+
+    // Get sensor details from the service.
+    if (trackRecordingService == null) {
+      Log.d(TAG, "Cannot get teh track recording service.");
+    } else {
+      try {
+        sensorState = Sensor.SensorState.valueOf(trackRecordingService.getSensorState());
+      } catch (RemoteException e) {
+        Log.e(TAG, "Cannote read sensor state.", e);
+        sensorState = Sensor.SensorState.NONE;
+      }
+
+      try {
+        byte[] buff = trackRecordingService.getSensorData();
+        if (buff != null) {
+          sensorDataSet = Sensor.SensorDataSet.parseFrom(buff);
+        }
+      } catch (RemoteException e) {
+        Log.e(TAG, "Cannot read sensor data set.", e);
+      } catch (InvalidProtocolBufferException e) {
+        Log.e(TAG, "Cannot read sensor data set.", e);
+      }
+    }
+
+    updateSensorStateAndDataSet(sensorState, sensorDataSet);
+  }
+
+  /**
+   * Updates the sensor state and data set.
+   * 
+   * @param sensorState sensor state
+   * @param sensorDataSet sensor data set
+   */
+  private void updateSensorStateAndDataSet(
+      Sensor.SensorState sensorState, Sensor.SensorDataSet sensorDataSet) {
+    ((TextView) findViewById(R.id.sensor_state)).setText(
+        SensorUtils.getStateAsString(sensorState, this));
+
+    String lastSensorTime = sensorDataSet == null ? getString(R.string.value_unknown)
+        : getLastSensorTime(sensorDataSet);
+    String heartRate = sensorDataSet == null ? getString(R.string.value_unknown)
+        : getHeartRate(sensorDataSet);
+    String cadence = sensorDataSet == null ? getString(R.string.value_unknown)
+        : getCadence(sensorDataSet);
+    String power = sensorDataSet == null ? getString(R.string.value_unknown)
+        : getPower(sensorDataSet);
+    String battery = sensorDataSet == null ? getString(R.string.value_unknown)
+        : getBattery(sensorDataSet);
+
+    ((TextView) findViewById(R.id.sensor_state_last_sensor_time)).setText(lastSensorTime);
+    ((TextView) findViewById(R.id.sensor_state_heart_rate)).setText(heartRate);
+    ((TextView) findViewById(R.id.sensor_state_cadence)).setText(cadence);
+    ((TextView) findViewById(R.id.sensor_state_power)).setText(power);
+    ((TextView) findViewById(R.id.sensor_state_battery)).setText(battery);
+  }
+
+  /**
+   * Gets the last sensor time.
+   * 
+   * @param sensorDataSet sensor data set
+   */
+  private String getLastSensorTime(Sensor.SensorDataSet sensorDataSet) {
+    return DateFormat.format("h:mm:ss aa", sensorDataSet.getCreationTime()).toString();
+  }
+
+  /**
+   * Gets the heart rate.
+   * 
+   * @param sensorDataSet sensor data set
+   */
+  private String getHeartRate(Sensor.SensorDataSet sensorDataSet) {
+    String value;
+    if (sensorDataSet.hasHeartRate() && sensorDataSet.getHeartRate().hasValue()
+        && sensorDataSet.getHeartRate().getState() == Sensor.SensorState.SENDING) {
+      value = getString(
+          R.string.sensor_state_heart_rate_value, sensorDataSet.getHeartRate().getValue());
+    } else {
+      value = SensorUtils.getStateAsString(
+          sensorDataSet.hasHeartRate() ? sensorDataSet.getHeartRate().getState()
+              : Sensor.SensorState.NONE, this);
+    }
+    return value;
+  }
+
+  /**
+   * Gets the cadence.
+   * 
+   * @param sensorDataSet sensor data set
+   */
+  private String getCadence(Sensor.SensorDataSet sensorDataSet) {
+    String value;
+    if (sensorDataSet.hasCadence() && sensorDataSet.getCadence().hasValue()
+        && sensorDataSet.getCadence().getState() == Sensor.SensorState.SENDING) {
+      value = getString(R.string.sensor_state_cadence_value, sensorDataSet.getCadence().getValue());
+    } else {
+      value = SensorUtils.getStateAsString(
+          sensorDataSet.hasCadence() ? sensorDataSet.getCadence().getState()
+              : Sensor.SensorState.NONE, this);
+    }
+    return value;
+  }
+
+  /**
+   * Gets the power.
+   * 
+   * @param sensorDataSet sensor data set
+   */
+  private String getPower(Sensor.SensorDataSet sensorDataSet) {
+    String value;
+    if (sensorDataSet.hasPower() && sensorDataSet.getPower().hasValue()
+        && sensorDataSet.getPower().getState() == Sensor.SensorState.SENDING) {
+      value = getString(R.string.sensor_state_power_value, sensorDataSet.getPower().getValue());
+    } else {
+      value = SensorUtils.getStateAsString(
+          sensorDataSet.hasPower() ? sensorDataSet.getPower().getState() : Sensor.SensorState.NONE,
+          this);
+    }
+    return value;
+  }
+
+  /**
+   * Gets the battery.
+   * 
+   * @param sensorDataSet sensor data set
+   */
+  private String getBattery(Sensor.SensorDataSet sensorDataSet) {
+    String value;
+    if (sensorDataSet.hasBatteryLevel() && sensorDataSet.getBatteryLevel().hasValue()
+        && sensorDataSet.getBatteryLevel().getState() == Sensor.SensorState.SENDING) {
+      value = getString(R.string.value_integer_percent, sensorDataSet.getBatteryLevel().getValue());
+    } else {
+      value = SensorUtils.getStateAsString(
+          sensorDataSet.hasBatteryLevel() ? sensorDataSet.getBatteryLevel().getState()
+              : Sensor.SensorState.NONE, this);
+    }
+    return value;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/TabManager.java

@@ -0,0 +1,150 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentTransaction;
+import android.view.View;
+import android.widget.TabHost;
+import android.widget.TabHost.TabContentFactory;
+import android.widget.TabHost.TabSpec;
+
+import java.util.HashMap;
+
+/**
+ * This is a helper class that implements a generic mechanism for associating
+ * fragments with the tabs in a tab host. It relies on a trick. Normally a tab
+ * host has a simple API for supplying a View or Intent that each tab will show.
+ * This is not sufficient for switching between fragments. So instead we make
+ * the content part of the tab host 0dp high (it is not shown) and the
+ * TabManager supplies its own dummy view to show as the tab content. It listens
+ * to changes in tabs, and takes care of switch to the correct fragment shown in
+ * a separate content area whenever the selected tab changes.
+ * <p>
+ * Copied from the Fragment Tabs example in the API 4+ Support Demos.
+ *
+ * @author Jimmy Shih
+ */
+public class TabManager implements TabHost.OnTabChangeListener {
+
+  private final FragmentActivity fragmentActivity;
+  private final TabHost tabHost;
+  private final int containerId;
+  private final HashMap<String, TabInfo> tabs = new HashMap<String, TabInfo>();
+  private TabInfo lastTabInfo;
+
+  /**
+   * An object to hold a tab's info.
+   *
+   * @author Jimmy Shih
+   */
+  private static final class TabInfo {
+
+    private final String tag;
+    private final Class<?> clss;
+    private final Bundle bundle;
+    private Fragment fragment;
+
+    public TabInfo(String tag, Class<?> clss, Bundle bundle) {
+      this.tag = tag;
+      this.clss = clss;
+      this.bundle = bundle;
+    }
+  }
+
+  /**
+   * A dummy {@link TabContentFactory} that creates an empty view to satisfy the
+   * {@link TabHost} API.
+   *
+   * @author Jimmy Shih
+   */
+  private static class DummyTabContentFactory implements TabContentFactory {
+
+    private final Context context;
+
+    public DummyTabContentFactory(Context context) {
+      this.context = context;
+    }
+
+    @Override
+    public View createTabContent(String tag) {
+      View view = new View(context);
+      view.setMinimumWidth(0);
+      view.setMinimumHeight(0);
+      return view;
+    }
+  }
+
+  public TabManager(FragmentActivity fragmentActivity, TabHost tabHost, int containerId) {
+    this.fragmentActivity = fragmentActivity;
+    this.tabHost = tabHost;
+    this.containerId = containerId;
+    tabHost.setOnTabChangedListener(this);
+  }
+
+  public void addTab(TabSpec tabSpec, Class<?> clss, Bundle bundle) {
+    tabSpec.setContent(new DummyTabContentFactory(fragmentActivity));
+
+    String tag = tabSpec.getTag();
+    TabInfo tabInfo = new TabInfo(tag, clss, bundle);
+
+    /*
+     * Check to see if we already have a fragment for this tab, probably from a
+     * previously saved state. If so, deactivate it, because our initial state
+     * is that a tab isn't shown.
+     */
+    tabInfo.fragment = fragmentActivity.getSupportFragmentManager().findFragmentByTag(tag);
+    if (tabInfo.fragment != null && !tabInfo.fragment.isDetached()) {
+      FragmentTransaction fragmentTransaction = fragmentActivity.getSupportFragmentManager()
+          .beginTransaction();
+      fragmentTransaction.detach(tabInfo.fragment);
+      fragmentTransaction.commit();
+    }
+    tabs.put(tag, tabInfo);
+    tabHost.addTab(tabSpec);
+  }
+
+  @Override
+  public void onTabChanged(String tabId) {
+    TabInfo newTabInfo = tabs.get(tabId);
+    if (lastTabInfo != newTabInfo) {
+      FragmentTransaction fragmentTransaction = fragmentActivity.getSupportFragmentManager()
+          .beginTransaction();
+      if (lastTabInfo != null) {
+        if (lastTabInfo.fragment != null) {
+          fragmentTransaction.detach(lastTabInfo.fragment);
+        }
+      }
+      if (newTabInfo != null) {
+        if (newTabInfo.fragment == null) {
+          newTabInfo.fragment = Fragment.instantiate(
+              fragmentActivity, newTabInfo.clss.getName(), newTabInfo.bundle);
+          fragmentTransaction.add(containerId, newTabInfo.fragment, newTabInfo.tag);
+        } else {
+          fragmentTransaction.attach(newTabInfo.fragment);
+        }
+      }
+
+      lastTabInfo = newTabInfo;
+      fragmentTransaction.commit();
+      fragmentActivity.getSupportFragmentManager().executePendingTransactions();
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/TrackDetailActivity.java

@@ -0,0 +1,498 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.TrackDataHub;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.content.WaypointCreationRequest;
+import com.google.android.apps.mytracks.fragments.ChartFragment;
+import com.google.android.apps.mytracks.fragments.ChooseActivityDialogFragment;
+import com.google.android.apps.mytracks.fragments.ChooseUploadServiceDialogFragment;
+import com.google.android.apps.mytracks.fragments.DeleteOneTrackDialogFragment;
+import com.google.android.apps.mytracks.fragments.DeleteOneTrackDialogFragment.DeleteOneTrackCaller;
+import com.google.android.apps.mytracks.fragments.FrequencyDialogFragment;
+import com.google.android.apps.mytracks.fragments.InstallEarthDialogFragment;
+import com.google.android.apps.mytracks.fragments.MapFragment;
+import com.google.android.apps.mytracks.fragments.StatsFragment;
+import com.google.android.apps.mytracks.io.file.SaveActivity;
+import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.apps.mytracks.io.sendtogoogle.SendRequest;
+import com.google.android.apps.mytracks.services.TrackRecordingServiceConnection;
+import com.google.android.apps.mytracks.settings.SettingsActivity;
+import com.google.android.apps.mytracks.util.AnalyticsUtils;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.TrackRecordingServiceConnectionUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.os.Bundle;
+import android.os.Parcelable;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.TabHost;
+import android.widget.TabHost.TabSpec;
+
+import java.util.List;
+
+/**
+ * An activity to show the track detail.
+ *
+ * @author Leif Hendrik Wilden
+ * @author Rodrigo Damazio
+ */
+public class TrackDetailActivity extends AbstractMyTracksActivity implements DeleteOneTrackCaller {
+
+  public static final String EXTRA_TRACK_ID = "track_id";
+  public static final String EXTRA_MARKER_ID = "marker_id";
+
+  private static final String TAG = TrackDetailActivity.class.getSimpleName();
+  private static final String CURRENT_TAG_KEY = "tab";
+ 
+  private TrackDataHub trackDataHub;
+  private TrackRecordingServiceConnection trackRecordingServiceConnection;
+  private TabHost tabHost;
+  private TabManager tabManager;
+  private long trackId;
+  private long markerId;
+  
+  private MenuItem stopRecordingMenuItem;
+  private MenuItem insertMarkerMenuItem;
+  private MenuItem playMenuItem;
+  private MenuItem shareMenuItem;
+  private MenuItem voiceFrequencyMenuItem;
+  private MenuItem splitFrequencyMenuItem;
+  private MenuItem sendGoogleMenuItem;
+  private MenuItem saveMenuItem;
+
+  private View mapViewContainer;
+
+  /*
+   * Note that sharedPreferenceChangeListener cannot be an anonymous inner
+   * class. Anonymous inner class will get garbage collected.
+   */
+  private final OnSharedPreferenceChangeListener
+      sharedPreferenceChangeListener = new OnSharedPreferenceChangeListener() {
+          @Override
+        public void onSharedPreferenceChanged(SharedPreferences preferences, String key) {
+          // Note that key can be null
+          if (PreferencesUtils.getKey(TrackDetailActivity.this, R.string.recording_track_id_key)
+              .equals(key)) {
+            updateMenu();
+          }
+        }
+      };
+
+  /**
+   * We are not displaying driving directions. Just an arbitrary track that is
+   * not associated to any licensed mapping data. Therefore it should be okay to
+   * return false here and still comply with the terms of service.
+   */
+  @Override
+  protected boolean isRouteDisplayed() {
+    return false;
+  }
+
+  /**
+   * We are displaying a location. This needs to return true in order to comply
+   * with the terms of service.
+   */
+  @Override
+  protected boolean isLocationDisplayed() {
+    return true;
+  }
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    handleIntent(getIntent());
+    ApiAdapterFactory.getApiAdapter().hideTitle(this);
+    setContentView(R.layout.track_detail);
+
+    getSharedPreferences(Constants.SETTINGS_NAME, Context.MODE_PRIVATE)
+        .registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
+    trackRecordingServiceConnection = new TrackRecordingServiceConnection(this, null);
+    trackDataHub = TrackDataHub.newInstance(this);
+
+    mapViewContainer = getLayoutInflater().inflate(R.layout.map, null);
+    ApiAdapterFactory.getApiAdapter().disableHardwareAccelerated(mapViewContainer);
+
+    tabHost = (TabHost) findViewById(android.R.id.tabhost);
+    tabHost.setup();
+    tabManager = new TabManager(this, tabHost, R.id.realtabcontent);
+    TabSpec mapTabSpec = tabHost.newTabSpec(MapFragment.MAP_FRAGMENT_TAG).setIndicator(
+        getString(R.string.track_detail_map_tab), getResources().getDrawable(R.drawable.tab_map));
+    tabManager.addTab(mapTabSpec, MapFragment.class, null);
+    TabSpec chartTabSpec = tabHost.newTabSpec(ChartFragment.CHART_FRAGMENT_TAG).setIndicator(
+        getString(R.string.track_detail_chart_tab),
+        getResources().getDrawable(R.drawable.tab_chart));
+    tabManager.addTab(chartTabSpec, ChartFragment.class, null);
+    TabSpec statsTabSpec = tabHost.newTabSpec(StatsFragment.STATS_FRAGMENT_TAG).setIndicator(
+        getString(R.string.track_detail_stats_tab),
+        getResources().getDrawable(R.drawable.tab_stats));
+    tabManager.addTab(statsTabSpec, StatsFragment.class, null);
+    if (savedInstanceState != null) {
+      tabHost.setCurrentTabByTag(savedInstanceState.getString(CURRENT_TAG_KEY));
+    }
+    showMarker();
+  }
+
+  @Override
+  public void onNewIntent(Intent intent) {
+    setIntent(intent);
+    handleIntent(intent);
+    showMarker();
+  }
+
+  @Override
+  protected void onStart() {
+    super.onStart();
+    trackDataHub.start();
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+    trackDataHub.loadTrack(trackId);
+    TrackRecordingServiceConnectionUtils.resume(this, trackRecordingServiceConnection);
+    setTitle(trackId == PreferencesUtils.getLong(this, R.string.recording_track_id_key));
+  }
+
+  @Override
+  protected void onSaveInstanceState(Bundle outState) {
+    super.onSaveInstanceState(outState);
+    outState.putString(CURRENT_TAG_KEY, tabHost.getCurrentTabTag());
+  }
+
+  @Override
+  protected void onStop() {
+    super.onStop();
+    trackDataHub.stop();
+  }
+
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    trackRecordingServiceConnection.unbind();
+  }
+ 
+  @Override
+  public boolean onCreateOptionsMenu(Menu menu) {
+    getMenuInflater().inflate(R.menu.track_detail, menu);
+    String fileTypes[] = getResources().getStringArray(R.array.file_types);
+    menu.findItem(R.id.track_detail_save_gpx)
+        .setTitle(getString(R.string.menu_save_format, fileTypes[0]));
+    menu.findItem(R.id.track_detail_save_kml)
+        .setTitle(getString(R.string.menu_save_format, fileTypes[1]));
+    menu.findItem(R.id.track_detail_save_csv)
+        .setTitle(getString(R.string.menu_save_format, fileTypes[2]));
+    menu.findItem(R.id.track_detail_save_tcx)
+        .setTitle(getString(R.string.menu_save_format, fileTypes[3]));
+
+    stopRecordingMenuItem = menu.findItem(R.id.track_detail_stop_recording);
+    insertMarkerMenuItem = menu.findItem(R.id.track_detail_insert_marker);
+    playMenuItem = menu.findItem(R.id.track_detail_play);
+    shareMenuItem = menu.findItem(R.id.track_detail_share);
+    voiceFrequencyMenuItem = menu.findItem(R.id.track_detail_voice_frequency);
+    splitFrequencyMenuItem = menu.findItem(R.id.track_detail_split_frequency);
+    sendGoogleMenuItem = menu.findItem(R.id.track_detail_send_google);
+    saveMenuItem = menu.findItem(R.id.track_detail_save);
+
+    updateMenu();
+    return true;
+  }
+
+  @Override
+  protected void onHomeSelected() {
+    Intent intent = IntentUtils.newIntent(this, TrackListActivity.class);
+    startActivity(intent);
+    finish();
+  }
+
+  @Override
+  public boolean onPrepareOptionsMenu(Menu menu) {
+    String sensorTypeValueNone = getString(R.string.sensor_type_value_none);
+    boolean showSensorState = !sensorTypeValueNone.equals(
+        PreferencesUtils.getString(this, R.string.sensor_type_key, sensorTypeValueNone));
+    menu.findItem(R.id.track_detail_sensor_state).setVisible(showSensorState);
+    return super.onPrepareOptionsMenu(menu);
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    Intent intent;
+    switch (item.getItemId()) {
+      case R.id.track_detail_stop_recording:
+        updateMenuItems(false);
+        setTitle(false);
+        TrackRecordingServiceConnectionUtils.stop(this, trackRecordingServiceConnection, true);
+        return true;
+      case R.id.track_detail_insert_marker:
+        AnalyticsUtils.sendPageViews(this, "/action/insert_marker");
+        intent = IntentUtils.newIntent(this, MarkerEditActivity.class)
+            .putExtra(MarkerEditActivity.EXTRA_TRACK_ID, trackId);
+        startActivity(intent);
+        return true;
+      case R.id.track_detail_play:
+        if (isEarthInstalled()) {
+          AnalyticsUtils.sendPageViews(this, "/action/play");
+          intent = IntentUtils.newIntent(this, SaveActivity.class)
+              .putExtra(SaveActivity.EXTRA_TRACK_ID, trackId)
+              .putExtra(SaveActivity.EXTRA_TRACK_FILE_FORMAT, (Parcelable) TrackFileFormat.KML)
+              .putExtra(SaveActivity.EXTRA_PLAY_TRACK, true);
+          startActivity(intent);
+        } else {
+          new InstallEarthDialogFragment().show(
+              getSupportFragmentManager(), InstallEarthDialogFragment.INSTALL_EARTH_DIALOG_TAG);
+        }
+        return true;
+      case R.id.track_detail_share:
+        AnalyticsUtils.sendPageViews(this, "/action/share");
+        ChooseActivityDialogFragment.newInstance(trackId, null).show(
+            getSupportFragmentManager(), ChooseActivityDialogFragment.CHOOSE_ACTIVITY_DIALOG_TAG);
+        return true;
+      case R.id.track_detail_markers:
+        intent = IntentUtils.newIntent(this, MarkerListActivity.class)
+            .putExtra(MarkerListActivity.EXTRA_TRACK_ID, trackId);
+        startActivity(intent);
+        return true;
+      case R.id.track_detail_voice_frequency:
+        FrequencyDialogFragment.newInstance(R.string.announcement_frequency_key,
+            PreferencesUtils.ANNOUNCEMENT_FREQUENCY_DEFAULT,
+            R.string.settings_voice_frequency_title)
+            .show(getSupportFragmentManager(), FrequencyDialogFragment.FREQUENCY_DIALOG_TAG);
+        return true;
+      case R.id.track_detail_split_frequency:
+        FrequencyDialogFragment.newInstance(R.string.split_frequency_key,
+            PreferencesUtils.SPLIT_FREQUENCY_DEFAULT, R.string.settings_split_frequency_title)
+            .show(getSupportFragmentManager(), FrequencyDialogFragment.FREQUENCY_DIALOG_TAG);
+        return true;
+      case R.id.track_detail_send_google:
+        AnalyticsUtils.sendPageViews(this, "/action/send_google");
+        ChooseUploadServiceDialogFragment.newInstance(new SendRequest(trackId)).show(
+            getSupportFragmentManager(),
+            ChooseUploadServiceDialogFragment.CHOOSE_UPLOAD_SERVICE_DIALOG_TAG);
+        return true;
+      case R.id.track_detail_save_gpx:
+        startSaveActivity(TrackFileFormat.GPX);
+        return true;
+      case R.id.track_detail_save_kml:
+        startSaveActivity(TrackFileFormat.KML);
+        return true;
+      case R.id.track_detail_save_csv:
+        startSaveActivity(TrackFileFormat.CSV);
+        return true;
+      case R.id.track_detail_save_tcx:
+        startSaveActivity(TrackFileFormat.TCX);
+        return true;
+      case R.id.track_detail_edit:
+        intent = IntentUtils.newIntent(this, TrackEditActivity.class)
+            .putExtra(TrackEditActivity.EXTRA_TRACK_ID, trackId);
+        startActivity(intent);
+        return true;
+      case R.id.track_detail_delete:
+        DeleteOneTrackDialogFragment.newInstance(trackId).show(
+            getSupportFragmentManager(), DeleteOneTrackDialogFragment.DELETE_ONE_TRACK_DIALOG_TAG);
+        return true;
+      case R.id.track_detail_sensor_state:
+        intent = IntentUtils.newIntent(this, SensorStateActivity.class);
+        startActivity(intent);
+        return true;
+      case R.id.track_detail_settings:
+        intent = IntentUtils.newIntent(this, SettingsActivity.class);
+        startActivity(intent);
+        return true;
+      case R.id.track_detail_help:
+        intent = IntentUtils.newIntent(this, HelpActivity.class);
+        startActivity(intent);
+        return true;
+      default:
+        return super.onOptionsItemSelected(item);
+    }
+  }
+
+  @Override
+  public boolean onTrackballEvent(MotionEvent event) {
+    if (event.getAction() == MotionEvent.ACTION_DOWN) {
+      if (TrackRecordingServiceConnectionUtils.isRecording(this, trackRecordingServiceConnection)) {
+        TrackRecordingServiceConnectionUtils.addMarker(
+            this, trackRecordingServiceConnection, WaypointCreationRequest.DEFAULT_WAYPOINT);
+        return true;
+      }
+    }
+    return super.onTrackballEvent(event);
+  }
+
+  /**
+   * Gets the map view container.
+   */
+  public View getMapViewContainer() {
+    return mapViewContainer;
+  }
+
+  /**
+   * Gets the {@link TrackDataHub}.
+   */
+  public TrackDataHub getTrackDataHub() {
+    return trackDataHub;
+  }
+
+  /**
+   * Handles the data in the intent.
+   */
+  private void handleIntent(Intent intent) {
+    trackId = intent.getLongExtra(EXTRA_TRACK_ID, -1L);
+    markerId = intent.getLongExtra(EXTRA_MARKER_ID, -1L);
+    if (markerId != -1L) {
+      Waypoint waypoint = MyTracksProviderUtils.Factory.get(this).getWaypoint(markerId);
+      if (waypoint == null) {
+        exit();
+        return;
+      }
+      trackId = waypoint.getTrackId();
+    }
+    if (trackId == -1L) {
+      exit();
+      return;
+    }
+  }
+
+  /**
+   * Exists and returns to {@link TrackListActivity}.
+   */
+  private void exit() {
+    Intent newIntent = IntentUtils.newIntent(this, TrackListActivity.class);
+    startActivity(newIntent);
+    finish();
+  }
+
+  /**
+   * Shows marker.
+   */
+  private void showMarker() {
+    if (markerId != -1L) {
+      MapFragment mapFragmet = (MapFragment) getSupportFragmentManager()
+          .findFragmentByTag(MapFragment.MAP_FRAGMENT_TAG);
+      if (mapFragmet != null) {
+        tabHost.setCurrentTabByTag(MapFragment.MAP_FRAGMENT_TAG);
+        mapFragmet.showMarker(trackId, markerId);
+      } else {
+        Log.e(TAG, "MapFragment is null");
+      }
+    }
+  }
+
+  /**
+   * Sets the title.
+   * 
+   * @param isRecording true if recording
+   */
+  private void setTitle(boolean isRecording) {
+    String title;
+    if (isRecording) {
+      title = getString(R.string.track_detail_title_recording);
+    } else {
+      Track track = MyTracksProviderUtils.Factory.get(this).getTrack(trackId);
+      title = track != null ? track.getName() : getString(R.string.my_tracks_app_name);
+    }
+    setTitle(title);
+  }
+
+  /**
+   * Updates the menu.
+   */
+  private void updateMenu() {
+    updateMenuItems(trackId == PreferencesUtils.getLong(this, R.string.recording_track_id_key));
+  }
+
+  /**
+   * Updates the menu items.
+   *
+   * @param isRecording true if recording
+   */
+  private void updateMenuItems(boolean isRecording) {
+    if (stopRecordingMenuItem != null) {
+      stopRecordingMenuItem.setVisible(isRecording);
+    }
+    if (insertMarkerMenuItem != null) {
+      insertMarkerMenuItem.setVisible(isRecording);
+    }
+    if (playMenuItem != null) {
+      playMenuItem.setVisible(!isRecording);
+    }
+    if (shareMenuItem != null) {
+      shareMenuItem.setVisible(!isRecording);
+    }
+    if (voiceFrequencyMenuItem != null) {
+      voiceFrequencyMenuItem.setVisible(isRecording);
+    }
+    if (splitFrequencyMenuItem != null) {
+      splitFrequencyMenuItem.setVisible(isRecording);
+    }
+    if (sendGoogleMenuItem != null) {
+      sendGoogleMenuItem.setVisible(!isRecording);
+    }
+    if (saveMenuItem != null) {
+      saveMenuItem.setVisible(!isRecording);
+    }
+  }
+
+  /**
+   * Starts the {@link SaveActivity} to save a track.
+   *
+   * @param trackFileFormat the track file format
+   */
+  private void startSaveActivity(TrackFileFormat trackFileFormat) {
+    AnalyticsUtils.sendPageViews(this, "/action/save");
+    Intent intent = IntentUtils.newIntent(this, SaveActivity.class)
+        .putExtra(SaveActivity.EXTRA_TRACK_ID, trackId)
+        .putExtra(SaveActivity.EXTRA_TRACK_FILE_FORMAT, (Parcelable) trackFileFormat);
+    startActivity(intent);
+  }
+
+  /**
+   * Returns true if Google Earth app is installed.
+   */
+  private boolean isEarthInstalled() {
+    List<ResolveInfo> infos = getPackageManager().queryIntentActivities(
+        new Intent().setType(SaveActivity.GOOGLE_EARTH_KML_MIME_TYPE),
+        PackageManager.MATCH_DEFAULT_ONLY);
+    for (ResolveInfo info : infos) {
+      if (info.activityInfo != null && info.activityInfo.packageName != null
+          && info.activityInfo.packageName.equals(SaveActivity.GOOGLE_EARTH_PACKAGE)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  @Override
+  public TrackRecordingServiceConnection getTrackRecordingServiceConnection() {
+    return trackRecordingServiceConnection;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/TrackEditActivity.java

@@ -0,0 +1,155 @@
+/*
+ * Copyright 2008 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.util.TrackIconUtils;
+import com.google.android.apps.mytracks.util.TrackNameUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.AutoCompleteTextView;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+/**
+ * An activity that let's the user see and edit the user editable track meta
+ * data such as track name, activity type, and track description.
+ * 
+ * @author Leif Hendrik Wilden
+ */
+public class TrackEditActivity extends AbstractMyTracksActivity {
+
+  public static final String EXTRA_TRACK_ID = "track_id";
+  public static final String EXTRA_NEW_TRACK = "new_track";
+
+  private static final String TAG = TrackEditActivity.class.getSimpleName();
+
+  private Long trackId;
+  private MyTracksProviderUtils myTracksProviderUtils;
+  private Track track;
+
+  private EditText name;
+  private TextView activityTypeLabel;
+  private AutoCompleteTextView activityType;
+  private EditText description;
+
+  @Override
+  protected void onCreate(Bundle bundle) {
+    super.onCreate(bundle);
+    setContentView(R.layout.track_edit);
+
+    trackId = getIntent().getLongExtra(EXTRA_TRACK_ID, -1L);
+    if (trackId == -1L) {
+      Log.e(TAG, "invalid trackId");
+      finish();
+      return;
+    }
+
+    myTracksProviderUtils = MyTracksProviderUtils.Factory.get(this);
+    track = myTracksProviderUtils.getTrack(trackId);
+    if (track == null) {
+      Log.e(TAG, "No track for " + trackId);
+      finish();
+      return;
+    }
+
+    name = (EditText) findViewById(R.id.track_edit_name);
+    name.setText(track.getName());
+
+    activityType = (AutoCompleteTextView) findViewById(R.id.track_edit_activity_type);
+    activityType.setText(track.getCategory());
+
+    activityTypeLabel = (TextView) findViewById(R.id.track_edit_activity_type_label);
+    setActivityTypeIcon(track.getIcon());
+    ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
+        this, R.array.activity_types, android.R.layout.simple_dropdown_item_1line);
+    activityType.setAdapter(adapter);
+    activityType.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+        @Override
+      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        String iconValue = TrackIconUtils.getIconValue(
+            TrackEditActivity.this, (String) activityType.getAdapter().getItem(position));
+        setActivityTypeIcon(iconValue);
+      }
+    });
+    activityType.setOnFocusChangeListener(new View.OnFocusChangeListener() {
+
+        @Override
+      public void onFocusChange(View v, boolean hasFocus) {
+        if (!hasFocus) {
+          String iconValue = TrackIconUtils.getIconValue(
+              TrackEditActivity.this, activityType.getText().toString());
+          setActivityTypeIcon(iconValue);
+        }
+
+      }
+    });
+    description = (EditText) findViewById(R.id.track_edit_description);
+    description.setText(track.getDescription());
+
+    Button save = (Button) findViewById(R.id.track_edit_save);
+    save.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        track.setName(name.getText().toString());
+        String category = activityType.getText().toString();
+        track.setCategory(category);
+        track.setIcon(TrackIconUtils.getIconValue(TrackEditActivity.this, category));
+        track.setDescription(description.getText().toString());
+        myTracksProviderUtils.updateTrack(track);
+        finish();
+      }
+    });
+
+    Button cancel = (Button) findViewById(R.id.track_edit_cancel);
+    if (getIntent().getBooleanExtra(EXTRA_NEW_TRACK, false)) {
+      String trackName = TrackNameUtils.getTrackName(
+          this, -1L, -1L, myTracksProviderUtils.getLastLocation());
+      if (trackName != null) {
+        name.setText(trackName);
+      }
+      setTitle(R.string.track_edit_new_track_title);
+      cancel.setVisibility(View.GONE);
+    } else {
+      setTitle(R.string.menu_edit);
+      cancel.setOnClickListener(new View.OnClickListener() {
+        @Override
+        public void onClick(View v) {
+          finish();
+        }
+      });
+      cancel.setVisibility(View.VISIBLE);
+    }
+  }
+
+  /**
+   * Sets the activity type icon.
+   * 
+   * @param iconValue the icon value
+   */
+  private void setActivityTypeIcon(String iconValue) {
+    activityTypeLabel.setCompoundDrawablesWithIntrinsicBounds(
+        TrackIconUtils.getIconDrawable(iconValue), 0, 0, 0);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/TrackListActivity.java

@@ -0,0 +1,524 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks;
+
+import com.google.android.apps.mytracks.content.TracksColumns;
+import com.google.android.apps.mytracks.fragments.CheckUnitsDialogFragment;
+import com.google.android.apps.mytracks.fragments.DeleteAllTrackDialogFragment;
+import com.google.android.apps.mytracks.fragments.DeleteOneTrackDialogFragment;
+import com.google.android.apps.mytracks.fragments.DeleteOneTrackDialogFragment.DeleteOneTrackCaller;
+import com.google.android.apps.mytracks.fragments.EulaDialogFragment;
+import com.google.android.apps.mytracks.fragments.WelcomeDialogFragment;
+import com.google.android.apps.mytracks.io.file.SaveActivity;
+import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.apps.mytracks.services.ITrackRecordingService;
+import com.google.android.apps.mytracks.services.TrackRecordingServiceConnection;
+import com.google.android.apps.mytracks.settings.SettingsActivity;
+import com.google.android.apps.mytracks.util.AnalyticsUtils;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+import com.google.android.apps.mytracks.util.EulaUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.ListItemUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.apps.mytracks.util.TrackIconUtils;
+import com.google.android.apps.mytracks.util.TrackRecordingServiceConnectionUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.database.Cursor;
+import android.os.Bundle;
+import android.os.Parcelable;
+import android.speech.tts.TextToSpeech;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.LoaderManager.LoaderCallbacks;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.support.v4.widget.ResourceCursorAdapter;
+import android.util.Log;
+import android.view.ContextMenu;
+import android.view.ContextMenu.ContextMenuInfo;
+import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.AdapterView.AdapterContextMenuInfo;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.ImageButton;
+import android.widget.ListView;
+import android.widget.Toast;
+
+/**
+ * An activity displaying a list of tracks.
+ *
+ * @author Leif Hendrik Wilden
+ */
+public class TrackListActivity extends FragmentActivity implements DeleteOneTrackCaller {
+
+  private static final String TAG = TrackListActivity.class.getSimpleName();
+
+  private static final String[] PROJECTION = new String[] {
+      TracksColumns._ID,
+      TracksColumns.NAME,
+      TracksColumns.DESCRIPTION,
+      TracksColumns.CATEGORY,
+      TracksColumns.STARTTIME,
+      TracksColumns.TOTALDISTANCE,
+      TracksColumns.TOTALTIME,
+      TracksColumns.ICON};
+
+  // Callback when the trackRecordingServiceConnection binding changes.
+  private final Runnable bindChangedCallback = new Runnable() {
+    @Override
+    public void run() {
+      if (!startNewRecording) {
+        return;
+      }
+
+      ITrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
+      if (service == null) {
+        Log.d(TAG, "service not available to start a new recording");
+        return;
+      }
+      try {
+        recordingTrackId = service.startNewTrack();
+        startNewRecording = false;
+        Intent intent = IntentUtils.newIntent(TrackListActivity.this, TrackDetailActivity.class)
+            .putExtra(TrackDetailActivity.EXTRA_TRACK_ID, recordingTrackId);
+        startActivity(intent);
+        Toast.makeText(
+            TrackListActivity.this, R.string.track_list_record_success, Toast.LENGTH_SHORT).show();
+      } catch (Exception e) {
+        Toast.makeText(TrackListActivity.this, R.string.track_list_record_error, Toast.LENGTH_LONG)
+            .show();
+        Log.e(TAG, "Unable to start a new recording.", e);
+      }
+    }
+  };
+
+  /*
+   * Note that sharedPreferenceChangeListenr cannot be an anonymous inner class.
+   * Anonymous inner class will get garbage collected.
+   */
+  private final OnSharedPreferenceChangeListener
+      sharedPreferenceChangeListener = new OnSharedPreferenceChangeListener() {
+        @Override
+        public void onSharedPreferenceChanged(SharedPreferences preferences, String key) {
+          boolean updateList = false;
+          // Note that key can be null
+          if (PreferencesUtils.getKey(TrackListActivity.this, R.string.metric_units_key)
+              .equals(key)) {
+            metricUnits = PreferencesUtils.getBoolean(TrackListActivity.this,
+                R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+            updateList = true;
+          }
+          if (PreferencesUtils.getKey(TrackListActivity.this, R.string.recording_track_id_key)
+              .equals(key)) {
+            recordingTrackId = PreferencesUtils.getLong(
+                TrackListActivity.this, R.string.recording_track_id_key);
+            if (TrackRecordingServiceConnectionUtils.isRecording(
+                TrackListActivity.this, trackRecordingServiceConnection)) {
+              trackRecordingServiceConnection.startAndBind();
+            }
+            updateMenu();
+            updateList = true;
+          }
+          if (updateList) {
+            resourceCursorAdapter.notifyDataSetChanged();
+          }
+        }
+      };
+
+  // Callback when an item is selected in the contextual action mode
+  private ContextualActionModeCallback contextualActionModeCallback =
+    new ContextualActionModeCallback() {
+    @Override
+    public boolean onClick(int itemId, int position, long id) {
+      return handleContextItem(itemId, id);
+    }
+  };
+  
+  private TrackRecordingServiceConnection trackRecordingServiceConnection;
+  private boolean metricUnits;
+  private long recordingTrackId;
+  private ListView listView;
+  private ResourceCursorAdapter resourceCursorAdapter;
+
+  // True to start a new recording.
+  private boolean startNewRecording = false;
+
+  private MenuItem recordTrackMenuItem;
+  private MenuItem stopRecordingMenuItem;
+  private MenuItem searchMenuItem;
+  private MenuItem importMenuItem;
+  private MenuItem saveAllMenuItem;
+  private MenuItem deleteAllMenuItem;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setVolumeControlStream(TextToSpeech.Engine.DEFAULT_STREAM);
+    setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);
+    setContentView(R.layout.track_list);
+
+    trackRecordingServiceConnection = new TrackRecordingServiceConnection(
+        this, bindChangedCallback);
+
+    getSharedPreferences(Constants.SETTINGS_NAME, Context.MODE_PRIVATE)
+        .registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
+    metricUnits = PreferencesUtils.getBoolean(
+        this, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+    recordingTrackId = PreferencesUtils.getLong(this, R.string.recording_track_id_key);
+
+    ImageButton recordImageButton = (ImageButton) findViewById(R.id.track_list_record_button);
+    recordImageButton.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        updateMenuItems(true);
+        startRecording();
+      }
+    });
+
+    listView = (ListView) findViewById(R.id.track_list);
+    listView.setEmptyView(findViewById(R.id.track_list_empty));  
+    listView.setOnItemClickListener(new OnItemClickListener() {
+      @Override
+      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        Intent intent = IntentUtils.newIntent(TrackListActivity.this, TrackDetailActivity.class)
+            .putExtra(TrackDetailActivity.EXTRA_TRACK_ID, id);
+        startActivity(intent);
+      }
+    });
+    resourceCursorAdapter = new ResourceCursorAdapter(this, R.layout.list_item, null, 0) {
+        @Override
+      public void bindView(View view, Context context, Cursor cursor) {
+        int idIndex = cursor.getColumnIndex(TracksColumns._ID);
+        int nameIndex = cursor.getColumnIndex(TracksColumns.NAME);
+        int descriptionIndex = cursor.getColumnIndex(TracksColumns.DESCRIPTION);
+        int categoryIndex = cursor.getColumnIndex(TracksColumns.CATEGORY);
+        int startTimeIndex = cursor.getColumnIndexOrThrow(TracksColumns.STARTTIME);
+        int totalDistanceIndex = cursor.getColumnIndexOrThrow(TracksColumns.TOTALDISTANCE);
+        int totalTimeIndex = cursor.getColumnIndexOrThrow(TracksColumns.TOTALTIME);
+        int iconIndex = cursor.getColumnIndex(TracksColumns.ICON);
+        
+        boolean isRecording = cursor.getLong(idIndex) == recordingTrackId;
+        String name = cursor.getString(nameIndex);
+        int iconId = isRecording ? R.drawable.menu_record_track
+            : TrackIconUtils.getIconDrawable(cursor.getString(iconIndex));
+        String iconContentDescription = getString(isRecording ? R.string.icon_recording
+            : R.string.icon_track);
+        String category = cursor.getString(categoryIndex);
+        String totalTime = isRecording 
+            ? null : StringUtils.formatElapsedTime(cursor.getLong(totalTimeIndex));
+        String totalDistance = isRecording ? null : StringUtils.formatDistance(
+            TrackListActivity.this, cursor.getDouble(totalDistanceIndex), metricUnits);
+        long startTime = cursor.getLong(startTimeIndex);
+        String description = cursor.getString(descriptionIndex);
+        ListItemUtils.setListItem(TrackListActivity.this,
+            view,
+            name,
+            iconId,
+            iconContentDescription,
+            category,
+            totalTime,
+            totalDistance,
+            startTime,
+            description);
+      }
+    };
+    listView.setAdapter(resourceCursorAdapter);
+    ApiAdapterFactory.getApiAdapter()
+        .configureListViewContextualMenu(this, listView, contextualActionModeCallback);
+   
+    getSupportLoaderManager().initLoader(0, null, new LoaderCallbacks<Cursor>() {
+      @Override
+      public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
+        return new CursorLoader(TrackListActivity.this,
+            TracksColumns.CONTENT_URI,
+            PROJECTION,
+            null,
+            null,
+            TracksColumns._ID + " DESC");
+      }
+
+      @Override
+      public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
+        resourceCursorAdapter.swapCursor(cursor);
+      }
+
+      @Override
+      public void onLoaderReset(Loader<Cursor> loader) {
+        resourceCursorAdapter.swapCursor(null);
+      }
+    });
+
+    showStartupDialogs();
+  }
+
+  /**
+   * Shows start up dialogs.
+   */
+  public void showStartupDialogs() {
+    if (!EulaUtils.getAcceptEula(this)) {
+      Fragment fragment = getSupportFragmentManager()
+          .findFragmentByTag(EulaDialogFragment.EULA_DIALOG_TAG);
+      if (fragment == null) {
+        EulaDialogFragment.newInstance(false)
+            .show(getSupportFragmentManager(), EulaDialogFragment.EULA_DIALOG_TAG);
+      }
+    } else if (EulaUtils.getShowWelcome(this)) {
+      Fragment fragment = getSupportFragmentManager()
+          .findFragmentByTag(WelcomeDialogFragment.WELCOME_DIALOG_TAG);
+      if (fragment == null) {
+        new WelcomeDialogFragment().show(
+            getSupportFragmentManager(), WelcomeDialogFragment.WELCOME_DIALOG_TAG);
+      }
+    } else if (EulaUtils.getShowCheckUnits(this)) {
+      Fragment fragment = getSupportFragmentManager()
+          .findFragmentByTag(CheckUnitsDialogFragment.CHECK_UNITS_DIALOG_TAG);
+      if (fragment == null) {
+        new CheckUnitsDialogFragment().show(
+            getSupportFragmentManager(), CheckUnitsDialogFragment.CHECK_UNITS_DIALOG_TAG);
+      }
+    } else {
+      enableEmptyView();
+    }
+  }
+  
+  /**
+   * Enables the content of the empty view.
+   */
+  private void enableEmptyView() {
+    View emptyMessage = findViewById(R.id.track_list_empty_message);
+    emptyMessage.setVisibility(View.VISIBLE);
+    View recordButton = findViewById(R.id.track_list_record_button);
+    recordButton.setVisibility(View.VISIBLE);
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+    TrackRecordingServiceConnectionUtils.resume(this, trackRecordingServiceConnection);
+  }
+
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    trackRecordingServiceConnection.unbind();
+  }
+
+  @Override
+  public boolean onCreateOptionsMenu(Menu menu) {
+    getMenuInflater().inflate(R.menu.track_list, menu);
+    String fileTypes[] = getResources().getStringArray(R.array.file_types);
+    menu.findItem(R.id.track_list_save_all_gpx)
+        .setTitle(getString(R.string.menu_save_format, fileTypes[0]));
+    menu.findItem(R.id.track_list_save_all_kml)
+        .setTitle(getString(R.string.menu_save_format, fileTypes[1]));
+    menu.findItem(R.id.track_list_save_all_csv)
+        .setTitle(getString(R.string.menu_save_format, fileTypes[2]));
+    menu.findItem(R.id.track_list_save_all_tcx)
+        .setTitle(getString(R.string.menu_save_format, fileTypes[3]));
+    
+    recordTrackMenuItem = menu.findItem(R.id.track_list_record_track);
+    stopRecordingMenuItem = menu.findItem(R.id.track_list_stop_recording);
+    searchMenuItem = menu.findItem(R.id.track_list_search);
+    importMenuItem = menu.findItem(R.id.track_list_import);
+    saveAllMenuItem = menu.findItem(R.id.track_list_save_all);
+    deleteAllMenuItem = menu.findItem(R.id.track_list_delete_all);
+
+    ApiAdapterFactory.getApiAdapter().configureSearchWidget(this, searchMenuItem);
+    updateMenu();
+    return true;
+  }
+
+  /**
+   * Updates the menu based on whether My Tracks is recording or not.
+   */
+  private void updateMenu() {
+    updateMenuItems(
+        TrackRecordingServiceConnectionUtils.isRecording(this, trackRecordingServiceConnection));
+  }
+
+  /**
+   * Updates the menu items.
+   *
+   * @param isRecording true if recording
+   */
+  private void updateMenuItems(boolean isRecording) {
+    if (recordTrackMenuItem != null) {
+      recordTrackMenuItem.setVisible(!isRecording);
+    }
+    if (stopRecordingMenuItem != null) {
+      stopRecordingMenuItem.setVisible(isRecording);
+    }
+    if (importMenuItem != null) {
+      importMenuItem.setVisible(!isRecording);
+    }
+    if (saveAllMenuItem != null) {
+      saveAllMenuItem.setVisible(!isRecording);
+    }
+    if (deleteAllMenuItem != null) {
+      deleteAllMenuItem.setVisible(!isRecording);
+    }
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    Intent intent;
+    switch (item.getItemId()) {
+      case R.id.track_list_record_track:
+        AnalyticsUtils.sendPageViews(this, "/action/record_track");
+        updateMenuItems(true);
+        startRecording();
+        return true;
+      case R.id.track_list_stop_recording:
+        updateMenuItems(false);
+        TrackRecordingServiceConnectionUtils.stop(this, trackRecordingServiceConnection, true);
+        return true;
+      case R.id.track_list_search:
+        return ApiAdapterFactory.getApiAdapter().handleSearchMenuSelection(this);
+      case R.id.track_list_import:
+        AnalyticsUtils.sendPageViews(this, "/action/import");
+        intent = IntentUtils.newIntent(this, ImportActivity.class)
+            .putExtra(ImportActivity.EXTRA_IMPORT_ALL, true);
+        startActivity(intent);
+        return true;
+      case R.id.track_list_save_all_gpx:
+        startSaveActivity(TrackFileFormat.GPX);
+        return true;
+      case R.id.track_list_save_all_kml:
+        startSaveActivity(TrackFileFormat.KML);
+        return true;
+      case R.id.track_list_save_all_csv:
+        startSaveActivity(TrackFileFormat.CSV);
+        return true;
+      case R.id.track_list_save_all_tcx:
+        startSaveActivity(TrackFileFormat.TCX);
+        return true;
+      case R.id.track_list_delete_all:
+        new DeleteAllTrackDialogFragment().show(
+            getSupportFragmentManager(), DeleteAllTrackDialogFragment.DELETE_ALL_TRACK_DIALOG_TAG);
+        return true;
+      case R.id.track_list_aggregated_statistics:
+        intent = IntentUtils.newIntent(this, AggregatedStatsActivity.class);
+        startActivity(intent);
+        return true;
+      case R.id.track_list_settings:
+        intent = IntentUtils.newIntent(this, SettingsActivity.class);
+        startActivity(intent);
+        return true;
+      case R.id.track_list_help:
+        intent = IntentUtils.newIntent(this, HelpActivity.class);
+        startActivity(intent);
+        return true;
+      default:
+        return super.onOptionsItemSelected(item);
+    }
+  }
+
+  /**
+   * Starts the {@link SaveActivity} to save all tracks.
+   *
+   * @param trackFileFormat the track file format
+   */
+  private void startSaveActivity(TrackFileFormat trackFileFormat) {
+    AnalyticsUtils.sendPageViews(this, "/action/save_all");
+    Intent intent = IntentUtils.newIntent(this, SaveActivity.class)
+        .putExtra(SaveActivity.EXTRA_TRACK_FILE_FORMAT, (Parcelable) trackFileFormat);
+    startActivity(intent);
+  }
+  
+  @Override
+  public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
+    super.onCreateContextMenu(menu, v, menuInfo);
+    getMenuInflater().inflate(R.menu.list_context_menu, menu);
+  }
+  
+  @Override
+  public boolean onContextItemSelected(MenuItem item) {
+    if (handleContextItem(item.getItemId(), ((AdapterContextMenuInfo) item.getMenuInfo()).id)) {
+      return true;
+    }
+    return super.onContextItemSelected(item);
+  }
+
+  /**
+   * Handles a context item selection.
+   * 
+   * @param itemId the menu item id
+   * @param trackId the track id
+   * @return true if handled.
+   */
+  private boolean handleContextItem(int itemId, long trackId) {
+    Intent intent;
+    switch (itemId) {
+      case R.id.list_context_menu_show_on_map:
+        intent = IntentUtils.newIntent(this, TrackDetailActivity.class)
+            .putExtra(TrackDetailActivity.EXTRA_TRACK_ID, trackId);
+        startActivity(intent);
+        return true;
+      case R.id.list_context_menu_edit:
+        intent = IntentUtils.newIntent(this, TrackEditActivity.class)
+            .putExtra(TrackEditActivity.EXTRA_TRACK_ID, trackId);
+        startActivity(intent);
+        return true;
+      case R.id.list_context_menu_delete:
+        DeleteOneTrackDialogFragment.newInstance(trackId).show(
+            getSupportFragmentManager(), DeleteOneTrackDialogFragment.DELETE_ONE_TRACK_DIALOG_TAG);
+        return true;
+      default:
+        return false;
+    }
+  }
+
+  /**
+   * Starts a new recording.
+   */
+  private void startRecording() {
+    startNewRecording = true;
+    trackRecordingServiceConnection.startAndBind();
+
+    /*
+     * If the binding has happened, then invoke the callback to start a new
+     * recording. If the binding hasn't happened, then invoking the callback
+     * will have no effect. But when the binding occurs, the callback will get
+     * invoked.
+     */
+    bindChangedCallback.run();
+  }
+
+  @Override
+  public boolean onKeyUp(int keyCode, KeyEvent event) {
+    if (keyCode == KeyEvent.KEYCODE_SEARCH) {
+      if (ApiAdapterFactory.getApiAdapter().handleSearchKey(searchMenuItem)) {
+        return true;
+      }
+    }
+    return super.onKeyUp(keyCode, event);
+  }
+
+  @Override
+  public TrackRecordingServiceConnection getTrackRecordingServiceConnection() {
+    return trackRecordingServiceConnection;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/DataSource.java

@@ -0,0 +1,192 @@
+/*
+ * Copyright 2011 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+import static com.google.android.apps.mytracks.Constants.MAX_LOCATION_AGE_MS;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.maps.mytracks.R;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.database.ContentObserver;
+import android.hardware.Sensor;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.location.Location;
+import android.location.LocationListener;
+import android.location.LocationManager;
+import android.net.Uri;
+import android.util.Log;
+import android.widget.Toast;
+
+/**
+ * Data source on the phone.
+ * 
+ * @author Rodrigo Damazio
+ */
+public class DataSource {
+
+  private static final int NETWORK_PROVIDER_MIN_TIME = 5 * 60 * 1000; // 5 minutes
+  private static final String TAG = DataSource.class.getSimpleName();
+
+  private final Context context;
+  private final ContentResolver contentResolver;
+  private final LocationManager locationManager;
+  private final SensorManager sensorManager;
+  private final SharedPreferences sharedPreferences;
+  
+  public DataSource(Context context) {
+    this.context = context;
+    contentResolver = context.getContentResolver();
+    locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
+    sensorManager = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
+    sharedPreferences = context.getSharedPreferences(Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+  }
+
+  /**
+   * Registers a content observer.
+   * 
+   * @param uri the uri
+   * @param observer the observer
+   */
+  public void registerContentObserver(Uri uri, ContentObserver observer) {
+    contentResolver.registerContentObserver(uri, false, observer);
+  }
+
+  /**
+   * Unregisters a content observer.
+   * 
+   * @param observer the observer
+   */
+  public void unregisterContentObserver(ContentObserver observer) {
+    contentResolver.unregisterContentObserver(observer);
+  }
+
+  /**
+   * Registers a location listener.
+   * 
+   * @param listener the listener
+   */
+  public void registerLocationListener(LocationListener listener) {
+    // Check if the GPS provider exists
+    if (locationManager.getProvider(LocationManager.GPS_PROVIDER) == null) {
+      listener.onProviderDisabled(LocationManager.GPS_PROVIDER);
+      unregisterLocationListener(listener);
+      return;
+    }
+
+    // Listen for GPS location
+    locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, listener);
+
+    // Update the listener with the current provider state
+    if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
+      listener.onProviderEnabled(LocationManager.GPS_PROVIDER);
+    } else {
+      listener.onProviderDisabled(LocationManager.GPS_PROVIDER);
+    }
+
+    // Listen for network location
+    try {
+      locationManager.requestLocationUpdates(
+          LocationManager.NETWORK_PROVIDER, NETWORK_PROVIDER_MIN_TIME, 0, listener);
+    } catch (RuntimeException e) {
+      // Network location is optional, so just log the exception
+      Log.w(TAG, "Could not register for network location.", e);
+    }
+  }
+
+  /**
+   * Unregisters a location listener.
+   * 
+   * @param listener the listener
+   */
+  public void unregisterLocationListener(LocationListener listener) {
+    locationManager.removeUpdates(listener);
+  }
+
+  /**
+   * Gets the last known location.
+   */
+  public Location getLastKnownLocation() {
+    Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
+    if (!isLocationRecent(location)) {
+      // Try network location
+      location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
+      int id = isLocationRecent(location) 
+          ? R.string.my_location_approximate_location : R.string.my_location_no_location;
+      Toast.makeText(context, id, Toast.LENGTH_LONG).show();
+    }
+    return location;
+  }
+
+  /**
+   * Returns true if the location is recent.
+   * 
+   * @param location the location
+   */
+  private boolean isLocationRecent(Location location) {
+    if (location == null) {
+      return false;
+    }
+    return location.getTime() > System.currentTimeMillis() - MAX_LOCATION_AGE_MS;
+  }
+
+  /**
+   * Registers a heading listener.
+   * 
+   * @param listener the listener
+   */
+  public void registerHeadingListener(SensorEventListener listener) {
+    Sensor heading = sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION);
+    if (heading == null) {
+      Log.d(TAG, "No heading sensor.");
+      return;
+    }
+    sensorManager.registerListener(listener, heading, SensorManager.SENSOR_DELAY_UI);
+  }
+
+  /**
+   * Unregisters a heading listener.
+   * 
+   * @param listener the listener
+   */
+  public void unregisterHeadingListener(SensorEventListener listener) {
+    sensorManager.unregisterListener(listener);
+  }
+
+  /**
+   * Registers a shared preference change listener.
+   * 
+   * @param listener the listener
+   */
+  public void registerOnSharedPreferenceChangeListener(OnSharedPreferenceChangeListener listener) {
+    sharedPreferences.registerOnSharedPreferenceChangeListener(listener);
+  }
+
+  /**
+   * Unregisters a shared preference change listener.
+   * 
+   * @param listener the listener
+   */
+  public void unregisterOnSharedPreferenceChangeListener(
+      OnSharedPreferenceChangeListener listener) {
+    sharedPreferences.unregisterOnSharedPreferenceChangeListener(listener);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/DataSourceListener.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2011 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+import android.location.Location;
+
+/**
+ * Listener to be invoked when {@link DataSource} changes.
+ * 
+ * @author Jimmy Shih
+ */
+public interface DataSourceListener {
+
+  /**
+   * Notifies when the tracks table is updated.
+   */
+  public void notifyTracksTableUpdated();
+
+  /**
+   * Notifies when the waypoints table is updated.
+   */
+  public void notifyWaypointsTableUpdated();
+
+  /**
+   * Notifies when the track points table is updated.
+   */
+  public void notifyTrackPointsTableUpdated();
+
+  /**
+   * Notifies when the current location changes.
+   * 
+   * @param location the location
+   */
+  public void notifyLocationChanged(Location location);
+  
+  
+  /**
+   * Notifies when the location provider enabled status changes.
+   * 
+   * @param enabled true if enabled, false if not
+   */
+  public void notifyLocationProviderEnabled(boolean enabled);
+
+  /**
+   * Notifies when the location provider availability status changes.
+   * 
+   * @param available true if available, false if not
+   */
+  public void notifyLocationProviderAvailable(boolean available);
+
+  /**
+   * Notifies when the compass heading changes.
+   * 
+   * @param heading the new heading
+   */
+  public void notifyHeadingChanged(float heading);
+  
+  /**
+   * Notifies when a preference changes.
+   * 
+   * @param key the preference key
+   */
+  public void notifyPreferenceChanged(String key);
+}

MyTracks/src/com/google/android/apps/mytracks/content/DataSourceManager.java

@@ -0,0 +1,316 @@
+/*
+ * Copyright 2011 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+import static com.google.android.apps.mytracks.Constants.TAG;
+
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.database.ContentObserver;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.location.Location;
+import android.location.LocationListener;
+import android.location.LocationManager;
+import android.location.LocationProvider;
+import android.os.Bundle;
+import android.os.Handler;
+import android.util.Log;
+
+import java.util.EnumSet;
+import java.util.Set;
+
+/**
+ * Data source manager. Creates observers/listeners and manages their
+ * registration with {@link DataSource}. The observers/listeners calls
+ * {@link DataSourceListener} when data changes.
+ * 
+ * @author Rodrigo Damazio
+ */
+public class DataSourceManager {
+
+  /**
+   * Observer when the tracks table is updated.
+   * 
+   * @author Jimmy Shih
+   */
+  private class TracksTableObserver extends ContentObserver {
+
+    public TracksTableObserver() {
+      super(handler);
+    }
+
+    @Override
+    public void onChange(boolean selfChange) {
+      dataSourceListener.notifyTracksTableUpdated();
+    }
+  }
+
+  /**
+   * Observer when the waypoints table is updated.
+   * 
+   * @author Jimmy Shih
+   */
+  private class WaypointsTableObserver extends ContentObserver {
+
+    public WaypointsTableObserver() {
+      super(handler);
+    }
+
+    @Override
+    public void onChange(boolean selfChange) {
+      dataSourceListener.notifyWaypointsTableUpdated();
+    }
+  }
+
+  /**
+   * Observer when the track points table is updated.
+   * 
+   * @author Jimmy Shih
+   */
+  private class TrackPointsTableObserver extends ContentObserver {
+
+    public TrackPointsTableObserver() {
+      super(handler);
+    }
+
+    @Override
+    public void onChange(boolean selfChange) {
+      dataSourceListener.notifyTrackPointsTableUpdated();
+    }
+  }
+
+  /**
+   * Listener for location changes.
+   * 
+   * @author Jimmy Shih
+   */
+  private class CurrentLocationListener implements LocationListener {
+
+    @Override
+    public void onLocationChanged(Location location) {
+      dataSourceListener.notifyLocationChanged(location);
+    }
+
+    @Override
+    public void onProviderDisabled(String provider) {
+      if (!LocationManager.GPS_PROVIDER.equals(provider)) {
+        return;
+      }
+      dataSourceListener.notifyLocationProviderEnabled(false);
+    }
+
+    @Override
+    public void onProviderEnabled(String provider) {
+      if (!LocationManager.GPS_PROVIDER.equals(provider)) {
+        return;
+      }
+      dataSourceListener.notifyLocationProviderEnabled(true);
+    }
+
+    @Override
+    public void onStatusChanged(String provider, int status, Bundle extras) {
+      if (!LocationManager.GPS_PROVIDER.equals(provider)) {
+        return;
+      }
+      dataSourceListener.notifyLocationProviderAvailable(status == LocationProvider.AVAILABLE);
+    }
+  }
+
+  /**
+   * Listener for heading changes.
+   * 
+   * @author Jimmy Shih
+   */
+  private class HeadingListener implements SensorEventListener {
+
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy) {
+      // Do nothing
+    }
+
+    @Override
+    public void onSensorChanged(SensorEvent event) {
+      dataSourceListener.notifyHeadingChanged(event.values[0]);
+    }
+  }
+
+  /**
+   * Listener for preference changes.
+   * 
+   * @author Jimmy Shih
+   */
+  private class PreferenceListener implements OnSharedPreferenceChangeListener {
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+      dataSourceListener.notifyPreferenceChanged(key);
+    }
+  }
+
+  private final DataSource dataSource;
+  private final DataSourceListener dataSourceListener;
+
+  // Registered listeners
+  private final Set<TrackDataType> registeredListeners = EnumSet.noneOf(TrackDataType.class);
+  
+  private final Handler handler;
+  private final TracksTableObserver tracksTableObserver;
+  private final WaypointsTableObserver waypointsTableObserver;
+  private final TrackPointsTableObserver trackPointsTableObserver;
+  private final CurrentLocationListener currentLocationListener;
+  private final HeadingListener headingListener;
+  private final PreferenceListener preferenceListener;
+
+  public DataSourceManager(DataSource dataSource, DataSourceListener dataSourceListener) {
+    this.dataSource = dataSource;
+    this.dataSourceListener = dataSourceListener;
+
+    handler = new Handler();
+    tracksTableObserver = new TracksTableObserver();
+    waypointsTableObserver = new WaypointsTableObserver();
+    trackPointsTableObserver = new TrackPointsTableObserver();
+    currentLocationListener = new CurrentLocationListener();
+    headingListener = new HeadingListener();
+    preferenceListener = new PreferenceListener();
+  }
+
+  /**
+   * Updates listeners with data source.
+   * 
+   * @param listeners the listeners
+   */
+  public void updateListeners(EnumSet<TrackDataType> listeners) {
+    EnumSet<TrackDataType> neededListeners = EnumSet.copyOf(listeners);
+
+    /*
+     * Map SAMPLED_OUT_POINT_UPDATES to POINT_UPDATES since they correspond to
+     * the same internal listener
+     */
+    if (neededListeners.contains(TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE)) {
+      neededListeners.remove(TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE);
+      neededListeners.add(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE);
+    }
+
+    Log.d(TAG, "Updating listeners " + neededListeners);
+
+    // Unnecessary = registered - needed
+    Set<TrackDataType> unnecessaryListeners = EnumSet.copyOf(registeredListeners);
+    unnecessaryListeners.removeAll(neededListeners);
+
+    // Missing = needed - registered
+    Set<TrackDataType> missingListeners = EnumSet.copyOf(neededListeners);
+    missingListeners.removeAll(registeredListeners);
+
+    // Remove unnecessary listeners
+    for (TrackDataType trackDataType : unnecessaryListeners) {
+      unregisterListener(trackDataType);
+    }
+
+    // Add missing listeners
+    for (TrackDataType trackDataType : missingListeners) {
+      registerListener(trackDataType);
+    }
+
+    // Update registered listeners
+    registeredListeners.clear();
+    registeredListeners.addAll(neededListeners);
+  }
+
+  /**
+   * Registers a listener with data source.
+   * 
+   * @param trackDataType the listener data type
+   */
+  private void registerListener(TrackDataType trackDataType) {
+    switch (trackDataType) {
+      case SELECTED_TRACK:
+        // Do nothing
+        break;
+      case TRACKS_TABLE:
+        dataSource.registerContentObserver(TracksColumns.CONTENT_URI, tracksTableObserver);
+        break;
+      case WAYPOINTS_TABLE:
+        dataSource.registerContentObserver(WaypointsColumns.CONTENT_URI, waypointsTableObserver);
+        break;
+      case SAMPLED_IN_TRACK_POINTS_TABLE:
+        dataSource.registerContentObserver(
+            TrackPointsColumns.CONTENT_URI, trackPointsTableObserver);
+        break;
+      case SAMPLED_OUT_TRACK_POINTS_TABLE:
+        // Do nothing. SAMPLED_OUT_POINT_UPDATES is mapped to POINT_UPDATES.
+        break;
+      case LOCATION:
+        dataSource.registerLocationListener(currentLocationListener);
+        break;
+      case HEADING:
+        dataSource.registerHeadingListener(headingListener);
+        break;
+      case PREFERENCE:
+        dataSource.registerOnSharedPreferenceChangeListener(preferenceListener);
+        break;
+      default:
+        break;
+    }
+  }
+
+  /**
+   * Unregisters a listener with data source.
+   * 
+   * @param trackDataType listener data type
+   */
+  private void unregisterListener(TrackDataType trackDataType) {
+    switch (trackDataType) {
+      case SELECTED_TRACK:
+        // Do nothing
+        break;
+      case TRACKS_TABLE:
+        dataSource.unregisterContentObserver(tracksTableObserver);
+        break;
+      case WAYPOINTS_TABLE:
+        dataSource.unregisterContentObserver(waypointsTableObserver);
+        break;
+      case SAMPLED_IN_TRACK_POINTS_TABLE:
+        dataSource.unregisterContentObserver(trackPointsTableObserver);
+        break;
+      case SAMPLED_OUT_TRACK_POINTS_TABLE:
+        // Do nothing. SAMPLED_OUT_POINT_UPDATES is mapped to POINT_UPDATES.
+        break;
+      case LOCATION:
+        dataSource.unregisterLocationListener(currentLocationListener);
+        break;
+      case HEADING:
+        dataSource.unregisterHeadingListener(headingListener);
+        break;
+      case PREFERENCE:
+        dataSource.unregisterOnSharedPreferenceChangeListener(preferenceListener);
+        break;
+      default:
+        break;
+    }
+  }
+
+  /**
+   * Unregisters all listeners with data source.
+   */
+  public void unregisterAllListeners() {
+    for (TrackDataType trackDataType : TrackDataType.values()) {
+      unregisterListener(trackDataType);
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/DescriptionGeneratorImpl.java

@@ -0,0 +1,275 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.apps.mytracks.util.ChartURLGenerator;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.apps.mytracks.util.UnitConversions;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Context;
+import android.util.Pair;
+
+import java.util.Vector;
+
+/**
+ * An implementation of {@link DescriptionGenerator} for My Tracks.
+ *
+ * @author Jimmy Shih
+ */
+public class DescriptionGeneratorImpl implements DescriptionGenerator {
+
+  private static final String HTML_LINE_BREAK = "<br>";
+  private static final String HTML_PARAGRAPH_SEPARATOR = "<p>";
+  private static final String TEXT_LINE_BREAK = "\n";
+  private static final String TEXT_PARAGRAPH_SEPARATOR = "\n\n";
+
+  private Context context;
+
+  public DescriptionGeneratorImpl(Context context) {
+    this.context = context;
+  }
+
+  @Override
+  public String generateTrackDescription(
+      Track track, Vector<Double> distances, Vector<Double> elevations, boolean html) {
+    String paragraphSeparator = html ? HTML_PARAGRAPH_SEPARATOR : TEXT_PARAGRAPH_SEPARATOR;
+    String lineBreak = html ? HTML_LINE_BREAK : TEXT_LINE_BREAK;
+    StringBuilder builder = new StringBuilder();
+
+    // Created by
+    String beginAnchor = html 
+        ? "<a href='http://" + context.getString(R.string.my_tracks_web_url) + "'>"
+        : "";
+    String endAnchor = html ? "</a>" : "";
+    builder.append(context.getString(R.string.send_google_by_my_tracks, beginAnchor, endAnchor));
+    builder.append(paragraphSeparator);
+
+    writeString(track.getName(), builder, R.string.generic_name_line, lineBreak);
+    writeString(track.getCategory(), builder, R.string.description_activity_type, lineBreak);
+    writeString(track.getDescription(), builder, R.string.generic_description_line, lineBreak);
+    builder.append(generateTripStatisticsDescription(track.getTripStatistics(), html));
+
+    // Elevation chart
+    if (html && distances != null && elevations != null) {
+      builder.append("<img border=\"0\" src=\""
+          + ChartURLGenerator.getChartUrl(distances, elevations, track, context) + "\"/>");
+      builder.append(HTML_LINE_BREAK);
+    }
+    return builder.toString();
+  }
+
+  @Override
+  public String generateWaypointDescription(Waypoint waypoint) {
+    return generateTripStatisticsDescription(waypoint.getTripStatistics(), false);
+  }
+
+  /**
+   * Writes a string to a string builder.
+   * 
+   * @param text the string
+   * @param builder the string builder
+   * @param resId the resource id containing one string placeholder
+   * @param lineBreak the line break
+   */
+  private void writeString(String text, StringBuilder builder, int resId, String lineBreak) {
+    if (text == null || text.length() == 0) {
+      text = context.getString(R.string.value_unknown);
+    }
+    builder.append(context.getString(resId, text));
+    builder.append(lineBreak);
+  }
+
+  /**
+   * Generates a description for a {@link TripStatistics}.
+   *
+   * @param stats the trip statistics
+   * @param html true to use "<br>" for line break instead of "\n"
+   */
+  private String generateTripStatisticsDescription(TripStatistics stats, boolean html) {
+    String lineBreak = html ? HTML_LINE_BREAK : TEXT_LINE_BREAK;
+    StringBuilder builder = new StringBuilder();
+
+    // Total distance
+    writeDistance(
+        stats.getTotalDistance(), builder, R.string.description_total_distance, lineBreak);
+
+    // Total time
+    writeTime(stats.getTotalTime(), builder, R.string.description_total_time, lineBreak);
+
+    // Moving time
+    writeTime(stats.getMovingTime(), builder, R.string.description_moving_time, lineBreak);
+
+    // Average speed
+    Pair<Double, Double> averageSpeed = writeSpeed(
+        stats.getAverageSpeed(), builder, R.string.description_average_speed, lineBreak);
+
+    // Average moving speed
+    Pair<Double, Double> averageMovingSpeed = writeSpeed(stats.getAverageMovingSpeed(), builder,
+        R.string.description_average_moving_speed, lineBreak);
+
+    // Max speed
+    Pair<Double, Double> maxSpeed = writeSpeed(
+        stats.getMaxSpeed(), builder, R.string.description_max_speed, lineBreak);
+
+    // Average pace
+    writePace(averageSpeed, builder, R.string.description_average_pace, lineBreak);
+
+    // Average moving pace
+    writePace(averageMovingSpeed, builder, R.string.description_average_moving_pace, lineBreak);
+
+    // Fastest pace
+    writePace(maxSpeed, builder, R.string.description_fastest_pace, lineBreak);
+
+    // Max elevation
+    writeElevation(stats.getMaxElevation(), builder, R.string.description_max_elevation, lineBreak);
+
+    // Min elevation
+    writeElevation(stats.getMinElevation(), builder, R.string.description_min_elevation, lineBreak);
+
+    // Elevation gain
+    writeElevation(
+        stats.getTotalElevationGain(), builder, R.string.description_elevation_gain, lineBreak);
+
+    // Max grade
+    writeGrade(stats.getMaxGrade(), builder, R.string.description_max_grade, lineBreak);
+
+    // Min grade
+    writeGrade(stats.getMinGrade(), builder, R.string.description_min_grade, lineBreak);
+
+    // Recorded time
+    builder.append(
+        context.getString(R.string.description_recorded_time,
+            StringUtils.formatDateTime(context, stats.getStartTime())));
+    builder.append(lineBreak);
+
+    return builder.toString();
+  }
+
+  /**
+   * Writes distance.
+   *
+   * @param distance distance in meters
+   * @param builder StringBuilder to append distance
+   * @param resId resource id of distance string
+   * @param lineBreak line break string
+   */
+  @VisibleForTesting
+  void writeDistance(double distance, StringBuilder builder, int resId, String lineBreak) {
+    double distanceInKm = distance * UnitConversions.M_TO_KM;
+    double distanceInMi = distanceInKm * UnitConversions.KM_TO_MI;
+    builder.append(context.getString(resId, distanceInKm, distanceInMi));
+    builder.append(lineBreak);
+  }
+
+  /**
+   * Writes time.
+   *
+   * @param time time in milliseconds.
+   * @param builder StringBuilder to append time
+   * @param resId resource id of time string
+   * @param lineBreak line break string
+   */
+  @VisibleForTesting
+  void writeTime(long time, StringBuilder builder, int resId, String lineBreak) {
+    builder.append(context.getString(resId, StringUtils.formatElapsedTime(time)));
+    builder.append(lineBreak);
+  }
+
+  /**
+   * Writes speed.
+   *
+   * @param speed speed in meters per second
+   * @param builder StringBuilder to append speed
+   * @param resId resource id of speed string
+   * @param lineBreak line break string
+   * @return a pair of speed, first in kilometers per hour, second in miles per
+   *         hour.
+   */
+  @VisibleForTesting
+  Pair<Double, Double> writeSpeed(
+      double speed, StringBuilder builder, int resId, String lineBreak) {
+    double speedInKmHr = speed * UnitConversions.MS_TO_KMH;
+    double speedInMiHr = speedInKmHr * UnitConversions.KM_TO_MI;
+    builder.append(context.getString(resId, speedInKmHr, speedInMiHr));
+    builder.append(lineBreak);
+    return Pair.create(speedInKmHr, speedInMiHr);
+  }
+
+  /**
+   * Writes pace.
+   *
+   * @param speed a pair of speed, first in kilometers per hour, second in miles
+   *          per hour
+   * @param builder StringBuilder to append pace
+   * @param resId resource id of pace string
+   * @param lineBreak line break string
+   */
+  @VisibleForTesting
+  void writePace(
+      Pair<Double, Double> speed, StringBuilder builder, int resId, String lineBreak) {
+    double paceInMinKm = getPace(speed.first);
+    double paceInMinMi = getPace(speed.second);
+    builder.append(context.getString(resId, paceInMinKm, paceInMinMi));
+    builder.append(lineBreak);
+  }
+
+  /**
+   * Writes elevation.
+   *
+   * @param elevation elevation in meters
+   * @param builder StringBuilder to append elevation
+   * @param resId resource id of elevation string
+   * @param lineBreak line break string
+   */
+  @VisibleForTesting
+  void writeElevation(
+      double elevation, StringBuilder builder, int resId, String lineBreak) {
+    long elevationInM = Math.round(elevation);
+    long elevationInFt = Math.round(elevation * UnitConversions.M_TO_FT);
+    builder.append(context.getString(resId, elevationInM, elevationInFt));
+    builder.append(lineBreak);
+  }
+
+  /**
+   * Writes grade.
+   *
+   * @param grade grade in fraction
+   * @param builder StringBuilder to append grade
+   * @param resId resource id grade string
+   * @param lineBreak line break string
+   */
+  @VisibleForTesting
+  void writeGrade(double grade, StringBuilder builder, int resId, String lineBreak) {
+    long gradeInPercent = Double.isNaN(grade) || Double.isInfinite(grade) ? 0L
+        : Math.round(grade * 100);
+    builder.append(context.getString(resId, gradeInPercent));
+    builder.append(lineBreak);
+  }
+
+  /**
+   * Gets pace (in minutes) from speed.
+   *
+   * @param speed speed in hours
+   */
+  @VisibleForTesting
+  double getPace(double speed) {
+    return speed == 0 ? 0.0 : 60.0 / speed; // convert from hours to minutes
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/MyTracksProvider.java

@@ -0,0 +1,470 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.ContentProvider;
+import android.content.ContentUris;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.database.SQLException;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteException;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.database.sqlite.SQLiteQueryBuilder;
+import android.net.Uri;
+import android.os.Binder;
+import android.os.Process;
+import android.text.TextUtils;
+import android.util.Log;
+
+/**
+ * A {@link ContentProvider} that handles access to track points, tracks, and
+ * waypoints tables.
+ * 
+ * @author Leif Hendrik Wilden
+ */
+public class MyTracksProvider extends ContentProvider {
+
+  private static final String TAG = MyTracksProvider.class.getSimpleName();
+  @VisibleForTesting
+  static final String DATABASE_NAME = "mytracks.db";
+  private static final int DATABASE_VERSION = 20;
+
+  /**
+   * Database helper for creating and upgrading the database.
+   */
+  @VisibleForTesting
+  static class DatabaseHelper extends SQLiteOpenHelper {
+  
+    public DatabaseHelper(Context context) {
+      super(context, DATABASE_NAME, null, DATABASE_VERSION);
+    }
+  
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+      db.execSQL(TrackPointsColumns.CREATE_TABLE);
+      db.execSQL(TracksColumns.CREATE_TABLE);
+      db.execSQL(WaypointsColumns.CREATE_TABLE);
+    }
+  
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+      Log.w(TAG, "Upgrading database from version " + oldVersion + " to " + newVersion);
+      if (oldVersion < 17) {
+        Log.w(TAG, "Deleting all old data.");
+        db.execSQL("DROP TABLE IF EXISTS " + TrackPointsColumns.TABLE_NAME);
+        db.execSQL("DROP TABLE IF EXISTS " + TracksColumns.TABLE_NAME);
+        db.execSQL("DROP TABLE IF EXISTS " + WaypointsColumns.TABLE_NAME);
+        onCreate(db);
+      } else {
+        // Incremental upgrades. One if statement per DB version.
+  
+        // Add track points SENSOR column
+        if (oldVersion <= 17) {
+          Log.w(TAG, "Upgrade DB: Adding sensor column.");
+          db.execSQL("ALTER TABLE " + TrackPointsColumns.TABLE_NAME + " ADD "
+              + TrackPointsColumns.SENSOR + " BLOB");
+        }
+        // Add tracks TABLEID column
+        if (oldVersion <= 18) {
+          Log.w(TAG, "Upgrade DB: Adding tableid column.");
+          db.execSQL("ALTER TABLE " + TracksColumns.TABLE_NAME + " ADD " + TracksColumns.TABLEID
+              + " STRING");
+        }
+        // Add tracks ICON column
+        if (oldVersion <= 19) {
+          Log.w(TAG, "Upgrade DB: Adding icon column.");
+          db.execSQL(
+              "ALTER TABLE " + TracksColumns.TABLE_NAME + " ADD " + TracksColumns.ICON + " STRING");
+        }
+      }
+    }
+  }
+
+  /**
+   * Types of url.
+   * 
+   * @author Jimmy Shih
+   */
+  private enum UrlType {
+    TRACKPOINTS, TRACKPOINTS_ID, TRACKS, TRACKS_ID, WAYPOINTS, WAYPOINTS_ID
+  }
+
+  private final UriMatcher uriMatcher;
+  private SQLiteDatabase db;
+
+  public MyTracksProvider() {
+    uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+    uriMatcher.addURI(MyTracksProviderUtils.AUTHORITY, TrackPointsColumns.TABLE_NAME,
+        UrlType.TRACKPOINTS.ordinal());
+    uriMatcher.addURI(MyTracksProviderUtils.AUTHORITY, TrackPointsColumns.TABLE_NAME + "/#",
+        UrlType.TRACKPOINTS_ID.ordinal());
+    uriMatcher.addURI(
+        MyTracksProviderUtils.AUTHORITY, TracksColumns.TABLE_NAME, UrlType.TRACKS.ordinal());
+    uriMatcher.addURI(MyTracksProviderUtils.AUTHORITY, TracksColumns.TABLE_NAME + "/#",
+        UrlType.TRACKS_ID.ordinal());
+    uriMatcher.addURI(
+        MyTracksProviderUtils.AUTHORITY, WaypointsColumns.TABLE_NAME, UrlType.WAYPOINTS.ordinal());
+    uriMatcher.addURI(MyTracksProviderUtils.AUTHORITY, WaypointsColumns.TABLE_NAME + "/#",
+        UrlType.WAYPOINTS_ID.ordinal());
+  }
+
+  @Override
+  public boolean onCreate() {
+    return onCreate(getContext());
+  }
+  
+  /**
+   * Helper method to make onCreate is testable.
+   * @param context context to creates database
+   * @return true means run successfully
+   */
+  public boolean onCreate(Context context) {
+    if (!canAccess()) {
+      return false;
+    }
+    DatabaseHelper databaseHelper = new DatabaseHelper(context);
+    try {
+      db = databaseHelper.getWritableDatabase();
+    } catch (SQLiteException e) {
+      Log.e(TAG, "Unable to open database for writing.", e);
+    }
+    return db != null;
+  }
+
+  @Override
+  public int delete(Uri url, String where, String[] selectionArgs) {
+    if (!canAccess()) {
+      return 0;
+    }
+    String table;
+    boolean shouldVacuum = false;
+    switch (getUrlType(url)) {
+      case TRACKPOINTS:
+        table = TrackPointsColumns.TABLE_NAME;
+        break;
+      case TRACKS:
+        table = TracksColumns.TABLE_NAME;
+        shouldVacuum = true;
+        break;
+      case WAYPOINTS:
+        table = WaypointsColumns.TABLE_NAME;
+        break;
+      default:
+        throw new IllegalArgumentException("Unknown URL " + url);
+    }
+  
+    Log.w(MyTracksProvider.TAG, "Deleting table " + table);
+    int count;
+    try {
+      db.beginTransaction();
+      count = db.delete(table, where, selectionArgs);
+      db.setTransactionSuccessful();
+    } finally {
+      db.endTransaction();
+    }
+    getContext().getContentResolver().notifyChange(url, null, true);
+  
+    if (shouldVacuum) {
+      // If a potentially large amount of data was deleted, reclaim its space.
+      Log.i(TAG, "Vacuuming the database.");
+      db.execSQL("VACUUM");
+    }
+    return count;
+  }
+
+  @Override
+  public String getType(Uri url) {
+    if (!canAccess()) {
+      return null;
+    }
+    switch (getUrlType(url)) {
+      case TRACKPOINTS:
+        return TrackPointsColumns.CONTENT_TYPE;
+      case TRACKPOINTS_ID:
+        return TrackPointsColumns.CONTENT_ITEMTYPE;
+      case TRACKS:
+        return TracksColumns.CONTENT_TYPE;
+      case TRACKS_ID:
+        return TracksColumns.CONTENT_ITEMTYPE;
+      case WAYPOINTS:
+        return WaypointsColumns.CONTENT_TYPE;
+      case WAYPOINTS_ID:
+        return WaypointsColumns.CONTENT_ITEMTYPE;
+      default:
+        throw new IllegalArgumentException("Unknown URL " + url);
+    }
+  }
+
+  @Override
+  public Uri insert(Uri url, ContentValues initialValues) {
+    if (!canAccess()) {
+      return null;
+    }
+    if (initialValues == null) {
+      initialValues = new ContentValues();
+    }
+    Uri result = null;
+    try {
+      db.beginTransaction();
+      result = insertContentValues(url, getUrlType(url), initialValues);
+      db.setTransactionSuccessful();
+    } finally {
+      db.endTransaction();
+    }
+    return result;
+  }
+
+  @Override
+  public int bulkInsert(Uri url, ContentValues[] valuesBulk) {
+    if (!canAccess()) {
+      return 0;
+    }
+    int numInserted = 0;
+    try {
+      // Use a transaction in order to make the insertions run as a single batch
+      db.beginTransaction();
+  
+      UrlType urlType = getUrlType(url);
+      for (numInserted = 0; numInserted < valuesBulk.length; numInserted++) {
+        ContentValues contentValues = valuesBulk[numInserted];
+        if (contentValues == null) {
+          contentValues = new ContentValues();
+        }
+        insertContentValues(url, urlType, contentValues);
+      }
+      db.setTransactionSuccessful();
+    } finally {
+      db.endTransaction();
+    }
+    return numInserted;
+  }
+
+  @Override
+  public Cursor query(
+      Uri url, String[] projection, String selection, String[] selectionArgs, String sort) {
+    if (!canAccess()) {
+      return null;
+    }
+    SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
+    String sortOrder = null;
+    switch (getUrlType(url)) {
+      case TRACKPOINTS:
+        queryBuilder.setTables(TrackPointsColumns.TABLE_NAME);
+        sortOrder = sort != null ? sort : TrackPointsColumns.DEFAULT_SORT_ORDER;
+        break;
+      case TRACKPOINTS_ID:
+        queryBuilder.setTables(TrackPointsColumns.TABLE_NAME);
+        queryBuilder.appendWhere("_id=" + url.getPathSegments().get(1));
+        break;
+      case TRACKS:
+        queryBuilder.setTables(TracksColumns.TABLE_NAME);
+        sortOrder = sort != null ? sort : TracksColumns.DEFAULT_SORT_ORDER;
+        break;
+      case TRACKS_ID:
+        queryBuilder.setTables(TracksColumns.TABLE_NAME);
+        queryBuilder.appendWhere("_id=" + url.getPathSegments().get(1));
+        break;
+      case WAYPOINTS:
+        queryBuilder.setTables(WaypointsColumns.TABLE_NAME);
+        sortOrder = sort != null ? sort : WaypointsColumns.DEFAULT_SORT_ORDER;
+        break;
+      case WAYPOINTS_ID:
+        queryBuilder.setTables(WaypointsColumns.TABLE_NAME);
+        queryBuilder.appendWhere("_id=" + url.getPathSegments().get(1));
+        break;
+      default:
+        throw new IllegalArgumentException("Unknown url " + url);
+    }
+    Cursor cursor = queryBuilder.query(
+        db, projection, selection, selectionArgs, null, null, sortOrder);
+    cursor.setNotificationUri(getContext().getContentResolver(), url);
+    return cursor;
+  }
+
+  @Override
+  public int update(Uri url, ContentValues values, String where, String[] selectionArgs) {
+    if (!canAccess()) {
+      return 0;
+    }
+    String table;
+    String whereClause;
+    switch (getUrlType(url)) {
+      case TRACKPOINTS:
+        table = TrackPointsColumns.TABLE_NAME;
+        whereClause = where;
+        break;
+      case TRACKPOINTS_ID:
+        table = TrackPointsColumns.TABLE_NAME;
+        whereClause = TrackPointsColumns._ID + "=" + url.getPathSegments().get(1);
+        if (!TextUtils.isEmpty(where)) {
+          whereClause += " AND (" + where + ")";
+        }
+        break;
+      case TRACKS:
+        table = TracksColumns.TABLE_NAME;
+        whereClause = where;
+        break;
+      case TRACKS_ID:
+        table = TracksColumns.TABLE_NAME;
+        whereClause = TracksColumns._ID + "=" + url.getPathSegments().get(1);
+        if (!TextUtils.isEmpty(where)) {
+          whereClause += " AND (" + where + ")";
+        }
+        break;
+      case WAYPOINTS:
+        table = WaypointsColumns.TABLE_NAME;
+        whereClause = where;
+        break;
+      case WAYPOINTS_ID:
+        table = WaypointsColumns.TABLE_NAME;
+        whereClause = WaypointsColumns._ID + "=" + url.getPathSegments().get(1);
+        if (!TextUtils.isEmpty(where)) {
+          whereClause += " AND (" + where + ")";
+        }
+        break;
+      default:
+        throw new IllegalArgumentException("Unknown url " + url);
+    }
+    int count;
+    try {
+      db.beginTransaction();
+      count = db.update(table, values, whereClause, selectionArgs);
+      db.setTransactionSuccessful();
+    } finally {
+      db.endTransaction();
+    }
+    getContext().getContentResolver().notifyChange(url, null, true);
+    return count;
+  }
+
+  /**
+   * Returns true if the caller can access the content provider.
+   */
+  private boolean canAccess() {
+    if (Binder.getCallingPid() == Process.myPid()) {
+      return true;
+    } else {
+      return PreferencesUtils.getBoolean(
+          getContext(), R.string.allow_access_key, PreferencesUtils.ALLOW_ACCESS_DEFAULT);
+    }
+  }
+
+  /**
+   * Gets the {@link UrlType} for a url.
+   * 
+   * @param url the url
+   */
+  private UrlType getUrlType(Uri url) {
+    return UrlType.values()[uriMatcher.match(url)];
+  }
+
+  /**
+   * Inserts a content based on the url type.
+   * 
+   * @param url the content url
+   * @param urlType the url type
+   * @param contentValues the content values
+   */
+  private Uri insertContentValues(Uri url, UrlType urlType, ContentValues contentValues) {
+    switch (urlType) {
+      case TRACKPOINTS:
+        return insertTrackPoint(url, contentValues);
+      case TRACKS:
+        return insertTrack(url, contentValues);
+      case WAYPOINTS:
+        return insertWaypoint(url, contentValues);
+      default:
+        throw new IllegalArgumentException("Unknown url " + url);
+    }
+  }
+
+  /**
+   * Inserts a track point.
+   * 
+   * @param url the content url
+   * @param values the content values
+   */
+  private Uri insertTrackPoint(Uri url, ContentValues values) {
+    boolean hasLatitude = values.containsKey(TrackPointsColumns.LATITUDE);
+    boolean hasLongitude = values.containsKey(TrackPointsColumns.LONGITUDE);
+    boolean hasTime = values.containsKey(TrackPointsColumns.TIME);
+    if (!hasLatitude || !hasLongitude || !hasTime) {
+      throw new IllegalArgumentException("Latitude, longitude, and time values are required.");
+    }
+    long rowId = db.insert(TrackPointsColumns.TABLE_NAME, TrackPointsColumns._ID, values);
+    if (rowId >= 0) {
+      Uri uri = ContentUris.appendId(TrackPointsColumns.CONTENT_URI.buildUpon(), rowId).build();
+      getContext().getContentResolver().notifyChange(url, null, true);
+      return uri;
+    }
+    throw new SQLiteException("Failed to insert a track point " + url);
+  }
+
+  /**
+   * Inserts a track.
+   * 
+   * @param url the content url
+   * @param contentValues the content values
+   */
+  private Uri insertTrack(Uri url, ContentValues contentValues) {
+    boolean hasStartTime = contentValues.containsKey(TracksColumns.STARTTIME);
+    boolean hasStartId = contentValues.containsKey(TracksColumns.STARTID);
+    if (!hasStartTime || !hasStartId) {
+      throw new IllegalArgumentException("Both start time and start id values are required.");
+    }
+    long rowId = db.insert(TracksColumns.TABLE_NAME, TracksColumns._ID, contentValues);
+    if (rowId >= 0) {
+      Uri uri = ContentUris.appendId(TracksColumns.CONTENT_URI.buildUpon(), rowId).build();
+      getContext().getContentResolver().notifyChange(url, null, true);
+      return uri;
+    }
+    throw new SQLException("Failed to insert a track " + url);
+  }
+
+  /**
+   * Inserts a waypoint.
+   * 
+   * @param url the content url
+   * @param contentValues the content values
+   */
+  private Uri insertWaypoint(Uri url, ContentValues contentValues) {
+    long rowId = db.insert(WaypointsColumns.TABLE_NAME, WaypointsColumns._ID, contentValues);
+    if (rowId >= 0) {
+      Uri uri = ContentUris.appendId(WaypointsColumns.CONTENT_URI.buildUpon(), rowId).build();
+      getContext().getContentResolver().notifyChange(url, null, true);
+      return uri;
+    }
+    throw new SQLException("Failed to insert a waypoint " + url);
+  }
+  
+  /**
+   * Gets the db.
+   * 
+   * @return the SQLiteDatabase object
+   */
+  @VisibleForTesting
+  SQLiteDatabase getDb() {
+    return db;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/SearchEngine.java

@@ -0,0 +1,405 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.content;
+
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.apps.mytracks.util.UnitConversions;
+
+import android.database.Cursor;
+import android.location.Location;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Comparator;
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+/**
+ * Engine for searching for tracks and waypoints by text.
+ *
+ * @author Rodrigo Damazio
+ */
+public class SearchEngine {
+
+  /** WHERE query to get tracks by name. */
+  private static final String TRACK_SELECTION_QUERY =
+      TracksColumns.NAME + " LIKE ? OR " +
+      TracksColumns.DESCRIPTION + " LIKE ? OR " +
+      TracksColumns.CATEGORY + " LIKE ?";
+
+  /** WHERE query to get waypoints by name. */
+  private static final String WAYPOINT_SELECTION_QUERY =
+      WaypointsColumns.NAME + " LIKE ? OR " +
+      WaypointsColumns.DESCRIPTION + " LIKE ? OR " +
+      WaypointsColumns.CATEGORY + " LIKE ?";
+
+  /** Order of track results. */
+  private static final String TRACK_SELECTION_ORDER = TracksColumns._ID + " DESC LIMIT 1000";
+
+  /** Order of waypoint results. */
+  private static final String WAYPOINT_SELECTION_ORDER = WaypointsColumns._ID + " DESC";
+
+  /** How much we promote a match in the track category. */
+  private static final double TRACK_CATEGORY_PROMOTION = 2.0;
+
+  /** How much we promote a match in the track description. */
+  private static final double TRACK_DESCRIPTION_PROMOTION = 8.0;
+
+  /** How much we promote a match in the track name. */
+  private static final double TRACK_NAME_PROMOTION = 16.0;
+
+  /** How much we promote a waypoint result if it's in the currently-selected track. */
+  private static final double CURRENT_TRACK_WAYPOINT_PROMOTION = 2.0;
+
+  /** How much we promote a track result if it's the currently-selected track. */
+  private static final double CURRENT_TRACK_DEMOTION = 0.5;
+
+  /** Maximum number of waypoints which will be retrieved and scored. */
+  private static final int MAX_SCORED_WAYPOINTS = 100;
+
+  /** Oldest timestamp for which we rank based on time (2000-01-01 00:00:00.000) */
+  private static final long OLDEST_ALLOWED_TIMESTAMP = 946692000000L;
+
+  /**
+   * Description of a search query, along with all contextual data needed to execute it.
+   */
+  public static class SearchQuery {
+    public SearchQuery(String textQuery, Location currentLocation, long currentTrackId,
+        long currentTimestamp) {
+      this.textQuery = textQuery.toLowerCase();
+      this.currentLocation = currentLocation;
+      this.currentTrackId = currentTrackId;
+      this.currentTimestamp = currentTimestamp;
+    }
+
+    public final String textQuery;
+    public final Location currentLocation;
+    public final long currentTrackId;
+    public final long currentTimestamp;
+  }
+
+  /**
+   * Description of a search result which has been retrieved and scored.
+   */
+  public static class ScoredResult {
+    ScoredResult(Track track, double score) {
+      this.track = track;
+      this.waypoint = null;
+      this.score = score;
+    }
+
+    ScoredResult(Waypoint waypoint, double score) {
+      this.track = null;
+      this.waypoint = waypoint;
+      this.score = score;
+    }
+
+    public final Track track;
+    public final Waypoint waypoint;
+    public final double score;
+
+    @Override
+    public String toString() {
+      return "ScoredResult ["
+          + (track != null ? ("trackId=" + track.getId() + ", ") : "")
+          + (waypoint != null ? ("wptId=" + waypoint.getId() + ", ") : "")
+          + "score=" + score + "]";
+    }
+  }
+
+  /** Comparador for scored results. */
+  private static final Comparator<ScoredResult> SCORED_RESULT_COMPARATOR =
+      new Comparator<ScoredResult>() {
+        @Override
+        public int compare(ScoredResult r1, ScoredResult r2) {
+          // Score ordering.
+          int scoreDiff = Double.compare(r2.score, r1.score);
+          if (scoreDiff != 0) {
+            return scoreDiff;
+          }
+
+          // Make tracks come before waypoints.
+          if (r1.waypoint != null && r2.track != null) {
+            return 1;
+          } else if (r1.track != null && r2.waypoint != null) {
+            return -1;
+          }
+
+          // Finally, use arbitrary ordering, by ID.
+          long id1 = r1.track != null ? r1.track.getId() : r1.waypoint.getId();
+          long id2 = r2.track != null ? r2.track.getId() : r2.waypoint.getId();
+          long idDiff = id2 - id1;
+          return Long.signum(idDiff);
+        }
+      };
+
+  private final MyTracksProviderUtils providerUtils;
+
+  public SearchEngine(MyTracksProviderUtils providerUtils) {
+    this.providerUtils = providerUtils;
+  }
+
+  /**
+   * Executes a search query and returns a set of sorted results.
+   *
+   * @param query the query to execute
+   * @return a set of results, sorted according to their score
+   */
+  public SortedSet<ScoredResult> search(SearchQuery query) {
+    ArrayList<Track> tracks = new ArrayList<Track>();
+    ArrayList<Waypoint> waypoints = new ArrayList<Waypoint>();
+    TreeSet<ScoredResult> scoredResults = new TreeSet<ScoredResult>(SCORED_RESULT_COMPARATOR);
+
+    retrieveTracks(query, tracks);
+    retrieveWaypoints(query, waypoints);
+
+    scoreTrackResults(tracks, query, scoredResults);
+    scoreWaypointResults(waypoints, query, scoredResults);
+
+    return scoredResults;
+  }
+
+  /**
+   * Retrieves tracks matching the given query from the database.
+   *
+   * @param query the query to retrieve for
+   * @param tracks list to fill with the resulting tracks
+   */
+  private void retrieveTracks(SearchQuery query, ArrayList<Track> tracks) {
+    String queryLikeSelection = "%" + query.textQuery + "%";
+    String[] trackSelectionArgs = new String[] {
+        queryLikeSelection,
+        queryLikeSelection,
+        queryLikeSelection };
+
+    Cursor tracksCursor = providerUtils.getTracksCursor(
+        TRACK_SELECTION_QUERY, trackSelectionArgs, TRACK_SELECTION_ORDER);
+    if (tracksCursor != null) {
+      try {
+        tracks.ensureCapacity(tracksCursor.getCount());
+
+        while (tracksCursor.moveToNext()) {
+          tracks.add(providerUtils.createTrack(tracksCursor));
+        }
+      } finally {
+        tracksCursor.close();
+      }
+    }
+  }
+
+  /**
+   * Retrieves waypoints matching the given query from the database.
+   *
+   * @param query the query to retrieve for
+   * @param waypoints list to fill with the resulting waypoints
+   */
+  private void retrieveWaypoints(SearchQuery query, ArrayList<Waypoint> waypoints) {
+    String queryLikeSelection2 = "%" + query.textQuery + "%";
+    String[] waypointSelectionArgs = new String[] {
+        queryLikeSelection2,
+        queryLikeSelection2,
+        queryLikeSelection2 };
+    Cursor waypointsCursor = providerUtils.getWaypointsCursor(
+        WAYPOINT_SELECTION_QUERY, waypointSelectionArgs, WAYPOINT_SELECTION_ORDER,
+        MAX_SCORED_WAYPOINTS);
+    if (waypointsCursor != null) {
+      try {
+        waypoints.ensureCapacity(waypointsCursor.getCount());
+
+        while (waypointsCursor.moveToNext()) {
+          Waypoint waypoint = providerUtils.createWaypoint(waypointsCursor);
+          if (LocationUtils.isValidLocation(waypoint.getLocation())) {
+            waypoints.add(waypoint);
+          }
+        }
+      } finally {
+        waypointsCursor.close();
+      }
+    }
+  }
+
+  /**
+   * Scores a collection of track results.
+   *
+   * @param tracks the results to score
+   * @param query the query to score for
+   * @param output the collection to fill with scored results
+   */
+  private void scoreTrackResults(Collection<Track> tracks, SearchQuery query, Collection<ScoredResult> output) {
+    for (Track track : tracks) {
+      // Calculate the score.
+      double score = scoreTrackResult(query, track);
+
+      // Add to the output.
+      output.add(new ScoredResult(track, score));
+    }
+  }
+
+  /**
+   * Scores a single track result.
+   *
+   * @param query the query to score for
+   * @param track the results to score
+   * @return the score for the track
+   */
+  private double scoreTrackResult(SearchQuery query, Track track) {
+    double score = 1.0;
+
+    score *= getTitleBoost(query, track.getName(), track.getDescription(), track.getCategory());
+
+    TripStatistics statistics = track.getTripStatistics();
+    // TODO: Also boost for proximity to the currently-centered position on the map.
+    score *= getDistanceBoost(query, statistics.getMeanLatitude(), statistics.getMeanLongitude());
+
+    long meanTimestamp = (statistics.getStartTime() + statistics.getStopTime()) / 2L;
+    score *= getTimeBoost(query, meanTimestamp);
+
+    // Score the currently-selected track lower (user is already there, wouldn't be searching for it).
+    if (track.getId() == query.currentTrackId) {
+      score *= CURRENT_TRACK_DEMOTION;
+    }
+
+    return score;
+  }
+
+  /**
+   * Scores a collection of waypoint results.
+   *
+   * @param waypoints the results to score
+   * @param query the query to score for
+   * @param output the collection to fill with scored results
+   */
+  private void scoreWaypointResults(Collection<Waypoint> waypoints, SearchQuery query, Collection<ScoredResult> output) {
+    for (Waypoint waypoint : waypoints) {
+      // Calculate the score.
+      double score = scoreWaypointResult(query, waypoint);
+
+      // Add to the output.
+      output.add(new ScoredResult(waypoint, score));
+    }
+  }
+
+  /**
+   * Scores a single waypoint result.
+   *
+   * @param query the query to score for
+   * @param waypoint the results to score
+   * @return the score for the waypoint
+   */
+  private double scoreWaypointResult(SearchQuery query, Waypoint waypoint) {
+    double score = 1.0;
+
+    Location location = waypoint.getLocation();
+    score *= getTitleBoost(query, waypoint.getName(), waypoint.getDescription(), waypoint.getCategory());
+    // TODO: Also boost for proximity to the currently-centered position on the map.
+    score *= getDistanceBoost(query, location.getLatitude(), location.getLongitude());
+    score *= getTimeBoost(query, location.getTime());
+
+    // Score waypoints in the currently-selected track higher (searching inside the current track).
+    if (query.currentTrackId != -1 && waypoint.getTrackId() == query.currentTrackId) {
+      score *= CURRENT_TRACK_WAYPOINT_PROMOTION;
+    }
+
+    return score;
+  }
+
+  /**
+   * Calculates the boosting of the score due to the field(s) in which the match occured.
+   *
+   * @param query the query to boost for
+   * @param name the name of the track or waypoint
+   * @param description the description of the track or waypoint
+   * @param category the category of the track or waypoint
+   * @return the total boost to be applied to the result
+   */
+  private double getTitleBoost(SearchQuery query,
+      String name, String description, String category) {
+    // Title boost: track name > description > category.
+    double boost = 1.0;
+    if (name.toLowerCase().contains(query.textQuery)) {
+      boost *= TRACK_NAME_PROMOTION;
+    }
+    if (description.toLowerCase().contains(query.textQuery)) {
+      boost *= TRACK_DESCRIPTION_PROMOTION;
+    }
+    if (category.toLowerCase().contains(query.textQuery)) {
+      boost *= TRACK_CATEGORY_PROMOTION;
+    }
+    return boost;
+  }
+
+  /**
+   * Calculates the boosting of the score due to the recency of the matched entity.
+   *
+   * @param query the query to boost for
+   * @param timestamp the timestamp to calculate the boost for
+   * @return the total boost to be applied to the result
+   */
+  private double getTimeBoost(SearchQuery query, long timestamp) {
+    if (timestamp < OLDEST_ALLOWED_TIMESTAMP) {
+      // Safety: if timestamp is too old or invalid, don't rank based on time.
+      return 1.0;
+    }
+
+    // Score recent tracks higher.
+    long timeAgoHours = (query.currentTimestamp - timestamp) / (60L * 60L * 1000L);
+    if (timeAgoHours > 0L) {
+      return squash(timeAgoHours);
+    } else {
+      // Should rarely happen (track recorded in the last hour).
+      return Double.POSITIVE_INFINITY;
+    }
+  }
+
+  /**
+   * Calculates the boosting of the score due to proximity to a location.
+   *
+   * @param query the query to boost for
+   * @param latitude the latitude to calculate the boost for
+   * @param longitude the longitude to calculate the boost for
+   * @return the total boost to be applied to the result
+   */
+  private double getDistanceBoost(SearchQuery query, double latitude, double longitude) {
+    if (query.currentLocation == null) {
+      return 1.0;
+    }
+
+    float[] distanceResults = new float[1];
+
+    Location.distanceBetween(
+        latitude, longitude,
+        query.currentLocation.getLatitude(), query.currentLocation.getLongitude(),
+        distanceResults);
+
+    // Score tracks close to the current location higher.
+    double distanceKm = distanceResults[0] * UnitConversions.M_TO_KM;
+    if (distanceKm > 0.0) {
+      // Use the inverse of the amortized distance.
+      return squash(distanceKm);
+    } else {
+      // Should rarely happen (distance is exactly 0).
+      return Double.POSITIVE_INFINITY;
+    }
+  }
+
+  /**
+   * Squashes a number by calculating 1 / log (1 + x).
+   */
+  private static double squash(double x) {
+    return 1.0 / Math.log1p(x);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/SearchEngineProvider.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.content;
+
+import android.content.Context;
+import android.content.SearchRecentSuggestionsProvider;
+import android.provider.SearchRecentSuggestions;
+
+/**
+ * Content provider for search suggestions.
+ *
+ * @author Rodrigo Damazio
+ */
+public class SearchEngineProvider extends SearchRecentSuggestionsProvider {
+
+  private static final String AUTHORITY = "com.google.android.maps.mytracks.search";
+  private static final int MODE = DATABASE_MODE_QUERIES;
+
+  public SearchEngineProvider() {
+    setupSuggestions(AUTHORITY, MODE);
+  }
+
+  // TODO: Also add suggestions from the database.
+
+  /**
+   * Creates and returns a helper for adding recent queries or clearing the recent query history.
+   */
+  public static SearchRecentSuggestions newHelper(Context context) {
+    return new SearchRecentSuggestions(context, AUTHORITY, MODE);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/TrackDataHub.java

@@ -0,0 +1,777 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+import static com.google.android.apps.mytracks.Constants.MAX_DISPLAYED_WAYPOINTS_POINTS;
+import static com.google.android.apps.mytracks.Constants.MAX_LOCATION_AGE_MS;
+import static com.google.android.apps.mytracks.Constants.MAX_NETWORK_AGE_MS;
+import static com.google.android.apps.mytracks.Constants.TARGET_DISPLAYED_TRACK_POINTS;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils.DoubleBufferedLocationFactory;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils.LocationIterator;
+import com.google.android.apps.mytracks.content.TrackDataListener.LocationState;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.hardware.GeomagneticField;
+import android.location.Location;
+import android.location.LocationManager;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.util.Log;
+
+import java.util.Collections;
+import java.util.EnumSet;
+import java.util.Set;
+
+/**
+ * Track data hub. Receives data from {@link DataSource} and distributes it to
+ * {@link TrackDataListener} after some processing.
+ * 
+ * @author Rodrigo Damazio
+ */
+public class TrackDataHub implements DataSourceListener {
+
+  private static final String TAG = TrackDataHub.class.getSimpleName();
+
+  // One hour in milliseconds
+  private static final int ONE_HOUR = 60 * 60 * 1000;
+
+  private final Context context;
+  private final TrackDataManager trackDataManager;
+  private final MyTracksProviderUtils myTracksProviderUtils;
+  private final int targetNumPoints;
+  private final DoubleBufferedLocationFactory locationFactory;
+
+  private boolean started;
+  private HandlerThread handlerThread;
+  private Handler handler;
+  private DataSource dataSource;
+  private DataSourceManager dataSourceManager;
+
+  // Preference values
+  private long selectedTrackId;
+  private boolean metricUnits;
+  private boolean reportSpeed;
+  private int minRequiredAccuracy;
+
+  // Heading values
+  private float lastHeading = 0;
+  private float lastDeclination = 0;
+  private long lastDeclinationUpdate = 0;
+
+  // Location values
+  private Location lastSeenLocation = null;
+  private boolean hasProviderEnabled = true;
+  private boolean hasFix = false;
+  private boolean hasGoodFix = false;
+
+  // Track points sampling state
+  private int numLoadedPoints;
+  private long firstSeenLocationId;
+  private long lastSeenLocationId;
+
+  /**
+   * Creates a new instance.
+   */
+  public synchronized static TrackDataHub newInstance(Context context) {
+    return new TrackDataHub(context, new TrackDataManager(), MyTracksProviderUtils.Factory.get(
+        context), TARGET_DISPLAYED_TRACK_POINTS);
+  }
+
+  /**
+   * Constructor.
+   * 
+   * @param context the context
+   * @param trackDataManager the track data manager
+   * @param myTracksProviderUtils the my tracks provider utils
+   * @param targetNumPoints the target number of points
+   */
+  @VisibleForTesting
+  TrackDataHub(Context context, TrackDataManager trackDataManager,
+      MyTracksProviderUtils myTracksProviderUtils, int targetNumPoints) {
+    this.context = context;
+    this.trackDataManager = trackDataManager;
+    this.myTracksProviderUtils = myTracksProviderUtils;
+    this.targetNumPoints = targetNumPoints;
+    this.locationFactory = new DoubleBufferedLocationFactory();
+    resetSamplingState();
+  }
+
+  /**
+   * Starts.
+   */
+  public void start() {
+    if (started) {
+      Log.i(TAG, "TrackDataHub already started, ignoring start.");
+      return;
+    }
+    started = true;
+    handlerThread = new HandlerThread("TrackDataHubHandlerThread");
+    handlerThread.start();
+    handler = new Handler(handlerThread.getLooper());
+    dataSource = newDataSource();
+    dataSourceManager = new DataSourceManager(dataSource, this);
+
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        dataSourceManager.updateListeners(trackDataManager.getRegisteredTrackDataTypes());
+        selectedTrackId = PreferencesUtils.getLong(context, R.string.selected_track_id_key);
+        metricUnits = PreferencesUtils.getBoolean(
+            context, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+        reportSpeed = PreferencesUtils.getBoolean(
+            context, R.string.report_speed_key, PreferencesUtils.REPORT_SPEED_DEFAULT);
+        minRequiredAccuracy = PreferencesUtils.getInt(context, R.string.min_required_accuracy_key,
+            PreferencesUtils.MIN_REQUIRED_ACCURACY_DEFAULT);
+        loadDataForAll();
+      }
+    });
+  }
+
+  /**
+   * Stops.
+   */
+  public void stop() {
+    if (!started) {
+      Log.i(TAG, "TrackDataHub not started, ignoring stop.");
+      return;
+    }
+    started = false;
+
+    dataSourceManager.unregisterAllListeners();
+    handlerThread.getLooper().quit();
+
+    handlerThread = null;
+    handler = null;
+    dataSource = null;
+    dataSourceManager = null;
+  }
+
+  /**
+   * Loads a track.
+   * 
+   * @param trackId the track id
+   */
+  public void loadTrack(final long trackId) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        if (trackId == selectedTrackId) {
+          Log.i(TAG, "Not reloading track " + trackId);
+          return;
+        }
+        selectedTrackId = trackId;
+        PreferencesUtils.setLong(context, R.string.selected_track_id_key, selectedTrackId);
+        loadDataForAll();
+      }
+    });
+  }
+
+  /**
+   * Registers a {@link TrackDataListener}.
+   * 
+   * @param trackDataListener the track data listener
+   * @param trackDataTypes the track data types
+   */
+  public void registerTrackDataListener(
+      final TrackDataListener trackDataListener, final EnumSet<TrackDataType> trackDataTypes) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        trackDataManager.registerListener(trackDataListener, trackDataTypes);
+        dataSourceManager.updateListeners(trackDataManager.getRegisteredTrackDataTypes());
+        loadDataForListener(trackDataListener);
+      }
+    });
+  }
+
+  /**
+   * Unregisters a {@link TrackDataListener}.
+   * 
+   * @param trackDataListener the track data listener
+   */
+  public void unregisterTrackDataListener(final TrackDataListener trackDataListener) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        trackDataManager.unregisterListener(trackDataListener);
+        dataSourceManager.updateListeners(trackDataManager.getRegisteredTrackDataTypes());
+      }
+    });
+  }
+
+  /**
+   * Reloads data for a {@link TrackDataListener}.
+   */
+  public void reloadDataForListener(final TrackDataListener trackDataListener) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        loadDataForListener(trackDataListener);
+      }
+    });
+  }
+
+  /**
+   * Forces update location and reports to all listeners.
+   */
+  public void forceUpdateLocation() {
+    final Location location = dataSource.getLastKnownLocation();
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        notifyLocationChanged(
+            location, false, trackDataManager.getListeners(TrackDataType.LOCATION));
+      }
+    });
+  }
+
+  /**
+   * Returns true if the selected track is recording.
+   */
+  public boolean isSelectedTrackRecording() {
+    long recordingTrackId = PreferencesUtils.getLong(context, R.string.recording_track_id_key);
+    return recordingTrackId != PreferencesUtils.RECORDING_TRACK_ID_DEFAULT
+        && recordingTrackId == selectedTrackId;
+  }
+
+  @Override
+  public void notifyTracksTableUpdated() {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        notifyTracksTableUpdate(trackDataManager.getListeners(TrackDataType.TRACKS_TABLE));
+      }
+    });
+  }
+
+  @Override
+  public void notifyWaypointsTableUpdated() {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        notifyWaypointsTableUpdate(trackDataManager.getListeners(TrackDataType.WAYPOINTS_TABLE));
+      }
+    });
+  }
+
+  @Override
+  public void notifyTrackPointsTableUpdated() {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        notifyTrackPointsTableUpdate(
+            true, trackDataManager.getListeners(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE),
+            trackDataManager.getListeners(TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE));
+      }
+    });
+  }
+
+  @Override
+  public void notifyPreferenceChanged(final String key) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        if (PreferencesUtils.getKey(context, R.string.min_required_accuracy_key).equals(key)) {
+          minRequiredAccuracy = PreferencesUtils.getInt(context, R.string.min_required_accuracy_key,
+              PreferencesUtils.MIN_REQUIRED_ACCURACY_DEFAULT);
+        } else if (PreferencesUtils.getKey(context, R.string.metric_units_key).equals(key)) {
+          metricUnits = PreferencesUtils.getBoolean(
+              context, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+          Set<TrackDataListener> trackDataListeners = trackDataManager.getListeners(
+              TrackDataType.PREFERENCE);
+          for (TrackDataListener trackDataListener : trackDataListeners) {
+            if (trackDataListener.onMetricUnitsChanged(metricUnits)) {
+              loadDataForListener(trackDataListener);
+            }
+          }
+        } else if (PreferencesUtils.getKey(context, R.string.report_speed_key).equals(key)) {
+          reportSpeed = PreferencesUtils.getBoolean(
+              context, R.string.report_speed_key, PreferencesUtils.REPORT_SPEED_DEFAULT);
+          Set<TrackDataListener> trackDataListeners = trackDataManager.getListeners(
+              TrackDataType.PREFERENCE);
+          for (TrackDataListener trackDataListener : trackDataListeners) {
+            if (trackDataListener.onReportSpeedChanged(reportSpeed)) {
+              loadDataForListener(trackDataListener);
+            }
+          }
+        } else if (PreferencesUtils.getKey(context, R.string.selected_track_id_key).equals(key)) {
+          long trackId = PreferencesUtils.getLong(context, R.string.selected_track_id_key);
+          if (trackId == selectedTrackId) {
+            Log.i(TAG, "Not reloading track " + trackId);
+            return;
+          }
+          selectedTrackId = trackId;
+          loadDataForAll();
+        }
+      }
+    });
+  }
+
+  @Override
+  public void notifyLocationProviderEnabled(final boolean enabled) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        hasProviderEnabled = enabled;
+        notifyLocationStateChanged(trackDataManager.getListeners(TrackDataType.LOCATION));
+      }
+    });
+  }
+
+  @Override
+  public void notifyLocationProviderAvailable(final boolean available) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        hasFix = available;
+        notifyLocationStateChanged(trackDataManager.getListeners(TrackDataType.LOCATION));
+      }
+    });
+  }
+
+  @Override
+  public void notifyLocationChanged(final Location location) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        notifyLocationChanged(
+            location, false, trackDataManager.getListeners(TrackDataType.LOCATION));
+      }
+    });
+  }
+
+  @Override
+  public void notifyHeadingChanged(final float heading) {
+    runInHanderThread(new Runnable() {
+        @Override
+      public void run() {
+        lastHeading = heading;
+
+        if (lastSeenLocation != null) {
+          // Update the declination at most once an hour
+          long now = System.currentTimeMillis();
+          if (now - lastDeclinationUpdate > ONE_HOUR) {
+            lastDeclinationUpdate = now;
+            long timestamp = lastSeenLocation.getTime();
+            if (timestamp == 0) {
+              // Hack for Samsung phones which don't populate the time field
+              timestamp = now;
+            }
+            lastDeclination = getDeclination(lastSeenLocation, timestamp);
+          }
+        }
+        notifyHeadingChange(trackDataManager.getListeners(TrackDataType.HEADING));
+      }
+    });
+  }
+
+  /**
+   * Loads data for all listeners. To be run in the {@link #handler} thread.
+   */
+  private void loadDataForAll() {
+    resetSamplingState();
+    if (trackDataManager.getNumberOfListeners() == 0) {
+      return;
+    }
+
+    for (TrackDataListener trackDataListener :
+        trackDataManager.getListeners(TrackDataType.PREFERENCE)) {
+      trackDataListener.onMetricUnitsChanged(metricUnits);
+      trackDataListener.onReportSpeedChanged(reportSpeed);
+    }
+
+    notifySelectedTrackChanged(trackDataManager.getListeners(TrackDataType.SELECTED_TRACK));
+    notifyTracksTableUpdate(trackDataManager.getListeners(TrackDataType.TRACKS_TABLE));
+
+    for (TrackDataListener listener :
+        trackDataManager.getListeners(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE)) {
+      listener.clearTrackPoints();
+    }
+    notifyTrackPointsTableUpdate(true,
+        trackDataManager.getListeners(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE),
+        trackDataManager.getListeners(TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE));
+    notifyWaypointsTableUpdate(trackDataManager.getListeners(TrackDataType.WAYPOINTS_TABLE));
+
+    if (lastSeenLocation != null) {
+      notifyLocationChanged(
+          lastSeenLocation, true, trackDataManager.getListeners(TrackDataType.LOCATION));
+    } else {
+      notifyLocationStateChanged(trackDataManager.getListeners(TrackDataType.LOCATION));
+    }
+    notifyHeadingChange(trackDataManager.getListeners(TrackDataType.HEADING));
+  }
+
+  /**
+   * Loads data for a listener. To be run in the {@link #handler} thread.
+   * 
+   * @param trackDataListener the track data listener.
+   */
+  private void loadDataForListener(TrackDataListener trackDataListener) {
+    Set<TrackDataListener> trackDataListeners = Collections.singleton(trackDataListener);
+    EnumSet<TrackDataType> trackDataTypes = trackDataManager.getTrackDataTypes(trackDataListener);
+
+    if (trackDataTypes.contains(TrackDataType.PREFERENCE)) {
+      trackDataListener.onMetricUnitsChanged(metricUnits);
+      trackDataListener.onReportSpeedChanged(reportSpeed);
+    }
+
+    if (trackDataTypes.contains(TrackDataType.SELECTED_TRACK)) {
+      notifySelectedTrackChanged(trackDataListeners);
+    }
+
+    if (trackDataTypes.contains(TrackDataType.TRACKS_TABLE)) {
+      notifyTracksTableUpdate(trackDataListeners);
+    }
+
+    boolean hasSampledIn = trackDataTypes.contains(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE);
+    boolean hasSampledOut = trackDataTypes.contains(TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE);
+    if (hasSampledIn || hasSampledOut) {
+      trackDataListener.clearTrackPoints();
+      boolean isOnlyListener = trackDataManager.getNumberOfListeners() == 1;
+      if (isOnlyListener) {
+        resetSamplingState();
+      }
+      Set<TrackDataListener> sampledInListeners = trackDataListeners;
+      Set<TrackDataListener> sampledOutListeners = hasSampledOut ? trackDataListeners
+          : Collections.<TrackDataListener> emptySet();
+      notifyTrackPointsTableUpdate(isOnlyListener, sampledInListeners, sampledOutListeners);
+    }
+
+    if (trackDataTypes.contains(TrackDataType.WAYPOINTS_TABLE)) {
+      notifyWaypointsTableUpdate(trackDataListeners);
+    }
+
+    if (trackDataTypes.contains(TrackDataType.LOCATION)) {
+      if (lastSeenLocation != null) {
+        notifyLocationChanged(lastSeenLocation, true, trackDataListeners);
+      } else {
+        notifyLocationStateChanged(trackDataListeners);
+      }
+    }
+
+    if (trackDataTypes.contains(TrackDataType.HEADING)) {
+      notifyHeadingChange(trackDataListeners);
+    }
+  }
+
+  /**
+   * Notifies selected track changed. To be run in the {@link #handler} thread.
+   * 
+   * @param trackDataListeners the track data listeners to notify
+   */
+  private void notifySelectedTrackChanged(Set<TrackDataListener> trackDataListeners) {
+    if (trackDataListeners.isEmpty()) {
+      return;
+    }
+    Track track = myTracksProviderUtils.getTrack(selectedTrackId);
+    for (TrackDataListener trackDataListener : trackDataListeners) {
+      trackDataListener.onSelectedTrackChanged(track, isSelectedTrackRecording());
+    }
+  }
+
+  /**
+   * Notifies track table update. To be run in the {@link #handler} thread.
+   * 
+   * @param trackDataListeners the track data listeners to notify
+   */
+  private void notifyTracksTableUpdate(Set<TrackDataListener> trackDataListeners) {
+    if (trackDataListeners.isEmpty()) {
+      return;
+    }
+    Track track = myTracksProviderUtils.getTrack(selectedTrackId);
+    for (TrackDataListener trackDataListener : trackDataListeners) {
+      trackDataListener.onTrackUpdated(track);
+    }
+  }
+
+  /**
+   * Notifies waypoint table update. Currently, reloads all the waypoints up to
+   * {@link Constants#MAX_DISPLAYED_WAYPOINTS_POINTS}. To be run in the
+   * {@link #handler} thread.
+   * 
+   * @param trackDataListeners the track data listeners to notify
+   */
+  private void notifyWaypointsTableUpdate(Set<TrackDataListener> trackDataListeners) {
+    if (trackDataListeners.isEmpty()) {
+      return;
+    }
+
+    for (TrackDataListener trackDataListener : trackDataListeners) {
+      trackDataListener.clearWaypoints();
+    }
+
+    Cursor cursor = null;
+    try {
+      cursor = myTracksProviderUtils.getWaypointsCursor(
+          selectedTrackId, 0L, MAX_DISPLAYED_WAYPOINTS_POINTS);
+      if (cursor != null && cursor.moveToFirst()) {
+        do {
+          Waypoint waypoint = myTracksProviderUtils.createWaypoint(cursor);
+          if (!LocationUtils.isValidLocation(waypoint.getLocation())) {
+            continue;
+          }
+          for (TrackDataListener trackDataListener : trackDataListeners) {
+            trackDataListener.onNewWaypoint(waypoint);
+          }
+        } while (cursor.moveToNext());
+      }
+    } finally {
+      if (cursor != null) {
+        cursor.close();
+      }
+    }
+
+    for (TrackDataListener trackDataListener : trackDataListeners) {
+      trackDataListener.onNewWaypointsDone();
+    }
+  }
+
+  /**
+   * Notifies track points table update. To be run in the {@link #handler}
+   * thread.
+   * 
+   * @param updateSamplingState true to update the sampling state
+   * @param sampledInListeners the sampled-in listeners
+   * @param sampledOutListeners the sampled-out listeners
+   */
+  private void notifyTrackPointsTableUpdate(boolean updateSamplingState,
+      Set<TrackDataListener> sampledInListeners, Set<TrackDataListener> sampledOutListeners) {
+    if (sampledInListeners.isEmpty() && sampledOutListeners.isEmpty()) {
+      return;
+    }
+    if (updateSamplingState && numLoadedPoints >= targetNumPoints) {
+      // Reload and resample the track at a lower frequency.
+      Log.i(TAG, "Resampling track after " + numLoadedPoints + " points.");
+      resetSamplingState();
+      for (TrackDataListener listener : sampledInListeners) {
+        listener.clearTrackPoints();
+      }
+    }
+
+    int localNumLoadedPoints = updateSamplingState ? numLoadedPoints : 0;
+    long localFirstSeenLocationId = updateSamplingState ? firstSeenLocationId : -1L;
+    long localLastSeenLocationId = updateSamplingState ? lastSeenLocationId : -1L;
+    long maxPointId = updateSamplingState ? -1L : lastSeenLocationId;
+
+    long lastLocationId = myTracksProviderUtils.getLastLocationId(selectedTrackId);
+    int samplingFrequency = -1;
+    LocationIterator iterator = myTracksProviderUtils.getLocationIterator(
+        selectedTrackId, localLastSeenLocationId + 1, false, locationFactory);
+    boolean includeNextPoint = false;
+    while (iterator.hasNext()) {
+      Location location = iterator.next();
+      long locationId = iterator.getLocationId();
+
+      // Stop if past the last wanted point
+      if (maxPointId != -1L && locationId > maxPointId) {
+        break;
+      }
+
+      if (localFirstSeenLocationId == -1) {
+        localFirstSeenLocationId = locationId;
+      }
+
+      if (samplingFrequency == -1) {
+        long numTotalPoints = Math.max(0L, lastLocationId - localFirstSeenLocationId);
+        samplingFrequency = 1 + (int) (numTotalPoints / targetNumPoints);
+      }
+
+      if (!LocationUtils.isValidLocation(location)) {
+        // TODO: also include the last valid point before a split
+        for (TrackDataListener trackDataListener : sampledInListeners) {
+          trackDataListener.onSegmentSplit();
+          includeNextPoint = true;
+        }
+      } else {
+        // Also include the last point if the selected track is not recording.
+        if (includeNextPoint || (localNumLoadedPoints % samplingFrequency == 0)
+            || (locationId == lastLocationId && !isSelectedTrackRecording())) {
+          includeNextPoint = false;
+          for (TrackDataListener trackDataListener : sampledInListeners) {
+            trackDataListener.onSampledInTrackPoint(location);
+          }
+        } else {
+          for (TrackDataListener trackDataListener : sampledOutListeners) {
+            trackDataListener.onSampledOutTrackPoint(location);
+          }
+        }
+      }
+
+      localNumLoadedPoints++;
+      localLastSeenLocationId = locationId;
+    }
+    iterator.close();
+
+    if (updateSamplingState) {
+      numLoadedPoints = localNumLoadedPoints;
+      firstSeenLocationId = localFirstSeenLocationId;
+      lastSeenLocationId = localLastSeenLocationId;
+    }
+
+    for (TrackDataListener listener : sampledInListeners) {
+      listener.onNewTrackPointsDone();
+    }
+  }
+
+  /**
+   * Notifies location state changed. To be run in the {@link #handler} thread.
+   * 
+   * @param trackDataListeners the track data listeners to notify
+   */
+  private void notifyLocationStateChanged(Set<TrackDataListener> trackDataListeners) {
+    if (trackDataListeners.isEmpty()) {
+      return;
+    }
+    TrackDataListener.LocationState locationState;
+    if (!hasProviderEnabled) {
+      locationState = LocationState.DISABLED;
+    } else if (!hasFix) {
+      locationState = LocationState.NO_FIX;
+    } else if (!hasGoodFix) {
+      locationState = LocationState.BAD_FIX;
+    } else {
+      locationState = LocationState.GOOD_FIX;
+    }
+    for (TrackDataListener trackDataListener : trackDataListeners) {
+      trackDataListener.onLocationStateChanged(locationState);
+    }
+  }
+
+  /**
+   * Notifies location changed. To be run in the {@link #handler} thread.
+   * 
+   * @param location the location
+   * @param notifyLocationStateChange true to always notify location state
+   *          change
+   * @param trackDataListeners the track data listeners to notify
+   */
+  private void notifyLocationChanged(Location location, boolean notifyLocationStateChange,
+      Set<TrackDataListener> trackDataListeners) {
+    if (location == null) {
+      return;
+    }
+    boolean oldHasFix = hasFix;
+    boolean oldHasGoodFix = hasGoodFix;
+    long now = System.currentTimeMillis();
+    if (location.getProvider().equals(LocationManager.GPS_PROVIDER)) {
+      hasFix = !isLocationOld(location, now, MAX_LOCATION_AGE_MS);
+      hasGoodFix = location.getAccuracy() <= minRequiredAccuracy;
+      lastSeenLocation = location;
+    } else {
+      // A network location.
+
+      // If has a recent GPS location, ignore the network location.
+      if (!isLocationOld(lastSeenLocation, now, MAX_LOCATION_AGE_MS)) {
+        return;
+      }
+
+      hasFix = false;
+      hasGoodFix = false;
+      lastSeenLocation = isLocationOld(location, now, MAX_NETWORK_AGE_MS) ? null : location;
+    }
+
+    if (trackDataListeners.isEmpty()) {
+      return;
+    }
+
+    if (notifyLocationStateChange || hasFix != oldHasFix || hasGoodFix != oldHasGoodFix) {
+      notifyLocationStateChanged(trackDataListeners);
+    }
+
+    for (TrackDataListener trackDataListener : trackDataListeners) {
+      trackDataListener.onLocationChanged(lastSeenLocation);
+    }
+  }
+
+  /**
+   * Notifies heading change. To be run in the {@link #handler} thread.
+   * 
+   * @param trackDataListeners the track data listeners to notify
+   */
+  private void notifyHeadingChange(Set<TrackDataListener> trackDataListeners) {
+    if (trackDataListeners.isEmpty()) {
+      return;
+    }
+    float value = lastHeading + lastDeclination;
+    for (TrackDataListener trackDataListener : trackDataListeners) {
+      trackDataListener.onHeadingChanged(value);
+    }
+  }
+
+  /**
+   * Resets the track points sampling states.
+   */
+  private void resetSamplingState() {
+    numLoadedPoints = 0;
+    firstSeenLocationId = -1L;
+    lastSeenLocationId = -1L;
+  }
+
+  /**
+   * Returns true if a location is invalid or too old.
+   * 
+   * @param location the location
+   * @param now the current time
+   * @param maxAge the maximum age
+   */
+  private boolean isLocationOld(Location location, long now, long maxAge) {
+    return !LocationUtils.isValidLocation(location) || (now - location.getTime() > maxAge);
+  }
+
+  /**
+   * Creates a {@link DataSource}.
+   */
+  @VisibleForTesting
+  protected DataSource newDataSource() {
+    return new DataSource(context);
+  }
+
+  /**
+   * Gets a declination.
+   * 
+   * @param location the location
+   * @param time the time
+   */
+  @VisibleForTesting
+  protected float getDeclination(Location location, long time) {
+    GeomagneticField field = new GeomagneticField((float) location.getLatitude(), (float) location
+        .getLongitude(), (float) location.getAltitude(), time);
+    return field.getDeclination();
+  }
+
+  /**
+   * Run in the handler thread.
+   * 
+   * @param runnable the runnable
+   */
+  @VisibleForTesting
+  protected void runInHanderThread(Runnable runnable) {
+    if (handler == null) {
+      // Use a Throwable to ensure the stack trace is logged.
+      Log.e(TAG, "handler is null.", new Throwable());
+      return;
+    }
+    handler.post(runnable);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/TrackDataListener.java

@@ -0,0 +1,143 @@
+/*
+ * Copyright 2011 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+import android.location.Location;
+
+/**
+ * Listener for track data changes.
+ * 
+ * @author Rodrigo Damazio
+ */
+public interface TrackDataListener {
+
+  /**
+   * Location state.
+   * 
+   * @author Jimmy Shih
+   */
+  public enum LocationState {
+    DISABLED, NO_FIX, BAD_FIX, GOOD_FIX;
+  }
+
+  /**
+   * Called when the location state changes.
+   */
+  public void onLocationStateChanged(LocationState locationState);
+
+  /**
+   * Called when the location changes. This is meant for location display only,
+   * track point data is reported with other methods like
+   * {@link #onSampledInTrackPoint(Location)} and
+   * {@link #onSampledOutTrackPoint(Location)}.
+   * 
+   * @param location the location
+   */
+  public void onLocationChanged(Location location);
+
+  /**
+   * Called when the heading changes.
+   * 
+   * @param heading the heading
+   */
+  public void onHeadingChanged(double heading);
+
+  /**
+   * Called when the selected track changes. This will be followed by calls to
+   * data methods such as {@link #onTrackUpdated(Track)},
+   * {@link #clearTrackPoints()}, {@link #onSampledInTrackPoint(Location)},
+   * etc., even if no track is currently selected (in which case you'll only get
+   * calls to clear the current data).
+   * 
+   * @param track the selected track or null if no track is selected
+   * @param isRecording true if the selected track is recording
+   */
+  public void onSelectedTrackChanged(Track track, boolean isRecording);
+
+  /**
+   * Called when the track or its statistics has been updated.
+   * 
+   * @param track the track
+   */
+  public void onTrackUpdated(Track track);
+
+  /**
+   * Called to clear previously-sent track points.
+   */
+  public void clearTrackPoints();
+
+  /**
+   * Called when a sampled in track point is read.
+   * 
+   * @param location the location
+   */
+  public void onSampledInTrackPoint(Location location);
+
+  /**
+   * Called when a sampled out track point is read.
+   * 
+   * @param location the location
+   */
+  public void onSampledOutTrackPoint(Location location);
+
+  /**
+   * Called when an invalid track point representing a segment split is read.
+   */
+  public void onSegmentSplit();
+
+  /**
+   * Called when finish sending new track points. This gets called after every
+   * batch of calls to {@link #onSampledInTrackPoint(Location)},
+   * {@link #onSampledOutTrackPoint(Location)} and {@link #onSegmentSplit()}.
+   */
+  public void onNewTrackPointsDone();
+
+  /**
+   * Called to clear previously sent waypoints.
+   */
+  public void clearWaypoints();
+
+  /**
+   * Called when a new waypoint is read.
+   * 
+   * @param waypoint the waypoint
+   */
+  public void onNewWaypoint(Waypoint waypoint);
+
+  /**
+   * Called when finish sending new waypoints. This gets called after every
+   * batch of calls to {@link #clearWaypoints()} and
+   * {@link #onNewWaypoint(Waypoint)}.
+   */
+  public void onNewWaypointsDone();
+
+  /**
+   * Called when the metric units preference value is change.
+   * 
+   * @param metricUnits true to use metric units, false to use imperial units
+   * @return true to reload all the data, false otherwise.
+   */
+  public boolean onMetricUnitsChanged(boolean metricUnits);
+
+  /**
+   * Called when the report speed preference value is changed.
+   * 
+   * @param reportSpeed true to report speed, false to report pace
+   * @return true to reload all the data, false otherwise.
+   */
+  public boolean onReportSpeedChanged(boolean reportSpeed);
+}

MyTracks/src/com/google/android/apps/mytracks/content/TrackDataManager.java

@@ -0,0 +1,124 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+import static com.google.android.apps.mytracks.Constants.TAG;
+
+import android.util.Log;
+
+import java.util.EnumMap;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.LinkedHashSet;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Manages register/unregister {@link TrackDataListener} and keeping the state
+ * for each registered listener.
+ * 
+ * @author Rodrigo Damazio
+ */
+public class TrackDataManager {
+
+  // Map of listener to its track data types
+  private final Map<TrackDataListener, EnumSet<TrackDataType>>
+      listenerToTypesMap = new HashMap<TrackDataListener, EnumSet<TrackDataType>>();
+
+  // Map of track data type to listeners
+  private final Map<TrackDataType, Set<TrackDataListener>>
+      typeToListenersMap = new EnumMap<TrackDataType, Set<TrackDataListener>>(TrackDataType.class);
+
+  public TrackDataManager() {
+    for (TrackDataType trackDataType : TrackDataType.values()) {
+      typeToListenersMap.put(trackDataType, new LinkedHashSet<TrackDataListener>());
+    }
+  }
+
+  /**
+   * Registers a listener.
+   * 
+   * @param listener the listener
+   * @param trackDataTypes the track data types the listener is interested
+   */
+  public void registerListener(
+      TrackDataListener listener, EnumSet<TrackDataType> trackDataTypes) {
+    if (listenerToTypesMap.containsKey(listener)) {
+      throw new IllegalStateException("Listener is already registered");
+    }
+    listenerToTypesMap.put(listener, trackDataTypes);
+    for (TrackDataType trackDataType : trackDataTypes) {
+      typeToListenersMap.get(trackDataType).add(listener);
+    }
+  }
+
+  /**
+   * Unregisters a listener.
+   * 
+   * @param listener the listener
+   */
+  public void unregisterListener(TrackDataListener listener) {
+    EnumSet<TrackDataType> removedTypes = listenerToTypesMap.remove(listener);
+    if (removedTypes == null) {
+      Log.w(TAG, "Tried to unregister a listener that is not registered.");
+      return;
+    }
+
+    // Remove the listener from the typeToListenersMap
+    for (TrackDataType trackDataType : removedTypes) {
+      typeToListenersMap.get(trackDataType).remove(listener);
+    }
+  }
+
+  /**
+   * Gets the number of {@link TrackDataListener}.
+   */
+  public int getNumberOfListeners() {
+    return listenerToTypesMap.size();
+  }
+
+  /**
+   * Gets the track data types for a listener.
+   * 
+   * @param listener the listener
+   */
+  public EnumSet<TrackDataType> getTrackDataTypes(TrackDataListener listener) {
+    return listenerToTypesMap.get(listener);
+  }
+
+  /**
+   * Gets the listeners for a {@link TrackDataType}.
+   * 
+   * @param type the type
+   */
+  public Set<TrackDataListener> getListeners(TrackDataType type) {
+    return typeToListenersMap.get(type);
+  }
+
+  /**
+   * Gets all the registered {@link TrackDataType}.
+   */
+  public EnumSet<TrackDataType> getRegisteredTrackDataTypes() {
+    EnumSet<TrackDataType> types = EnumSet.noneOf(TrackDataType.class);
+    for (EnumSet<TrackDataType> value : listenerToTypesMap.values()) {
+      types.addAll(value);
+    }
+    // Always include preference
+    types.add(TrackDataType.PREFERENCE);
+    return types;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/content/TrackDataType.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.content;
+
+/**
+ * Types of track data.
+ * 
+ * @author Jimmy Shih
+ */
+public enum TrackDataType {
+  SELECTED_TRACK, // selected track changes
+  TRACKS_TABLE, // tracks table changes
+  WAYPOINTS_TABLE, // waypoints table changes
+  SAMPLED_IN_TRACK_POINTS_TABLE, // sampled-in track points table changes
+  SAMPLED_OUT_TRACK_POINTS_TABLE, // sampled-out track points table changes
+  LOCATION, // location changes
+  HEADING, // heading changes
+  PREFERENCE // preference changes
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/AboutDialogFragment.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.util.SystemUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+import android.view.View;
+import android.widget.TextView;
+
+/**
+ * A DialogFragment to show information about My Tracks.
+ * 
+ * @author Jimmy Shih
+ */
+public class AboutDialogFragment extends DialogFragment {
+
+  public static final String ABOUT_DIALOG_TAG = "aboutDialog";
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    View view = getActivity().getLayoutInflater().inflate(R.layout.about, null);
+    TextView aboutVersion = (TextView) view.findViewById(R.id.about_version);
+    aboutVersion.setText(SystemUtils.getMyTracksVersion(getActivity()));
+    return new AlertDialog.Builder(getActivity())
+        .setNegativeButton(R.string.about_license, new DialogInterface.OnClickListener() {
+          @Override
+          public void onClick(DialogInterface dialog, int which) {
+            EulaDialogFragment.newInstance(true).show(
+                getActivity().getSupportFragmentManager(), EulaDialogFragment.EULA_DIALOG_TAG);
+          }
+        })
+        .setPositiveButton(R.string.generic_ok, null)
+        .setTitle(R.string.help_about)
+        .setView(view)
+        .create();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/ChartFragment.java

@@ -0,0 +1,536 @@
+/*
+ * Copyright 2009 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.ChartView;
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.TrackDetailActivity;
+import com.google.android.apps.mytracks.content.MyTracksLocation;
+import com.google.android.apps.mytracks.content.Sensor;
+import com.google.android.apps.mytracks.content.Sensor.SensorDataSet;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.TrackDataHub;
+import com.google.android.apps.mytracks.content.TrackDataListener;
+import com.google.android.apps.mytracks.content.TrackDataType;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.stats.DoubleBuffer;
+import com.google.android.apps.mytracks.stats.TripStatisticsBuilder;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.UnitConversions;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.location.Location;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewGroup.LayoutParams;
+import android.widget.ZoomControls;
+
+import java.util.ArrayList;
+import java.util.EnumSet;
+
+/**
+ * A fragment to display track chart to the user.
+ * 
+ * @author Sandor Dornbush
+ * @author Rodrigo Damazio
+ */
+public class ChartFragment extends Fragment implements TrackDataListener {
+
+  public static final String CHART_FRAGMENT_TAG = "chartFragment";
+  
+  // Android reports 128 when the speed is invalid
+  private static final int INVALID_SPEED = 128;
+  private final DoubleBuffer elevationBuffer = new DoubleBuffer(
+      Constants.ELEVATION_SMOOTHING_FACTOR);
+  private final DoubleBuffer speedBuffer = new DoubleBuffer(Constants.SPEED_SMOOTHING_FACTOR);
+  private final ArrayList<double[]> pendingPoints = new ArrayList<double[]>();
+  
+  private TrackDataHub trackDataHub;
+
+  // Stats gathered from the received data
+  private double totalDistance = 0.0;
+  private long startTime = -1L;
+  private Location lastLocation = null;
+  private double trackMaxSpeed = 0.0;
+
+  // Modes of operation
+  private boolean metricUnits = true;
+  private boolean reportSpeed = true;
+
+  private boolean chartByDistance = true;
+  private boolean[] chartShow = new boolean[] {true, true, true, true, true, true};
+
+  // UI elements
+  private ChartView chartView;
+  private ZoomControls zoomControls;
+
+  /**
+   * A runnable that will enable/disable zoom controls and orange pointer as
+   * appropriate and redraw.
+   */
+  private final Runnable updateChart = new Runnable() {
+    @Override
+    public void run() {
+      if (trackDataHub == null) {
+        return;
+      }
+
+      zoomControls.setIsZoomInEnabled(chartView.canZoomIn());
+      zoomControls.setIsZoomOutEnabled(chartView.canZoomOut());
+      chartView.setShowPointer(isSelectedTrackRecording());
+      chartView.invalidate();
+    }
+  };
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    /*
+     * Create a chartView here to store data thus won't need to reload all the
+     * data on every onStart or onResume.
+     */
+    chartView = new ChartView(getActivity());
+  };
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    View view = inflater.inflate(R.layout.chart, container, false);
+    zoomControls = (ZoomControls) view.findViewById(R.id.chart_zoom_controls);
+    zoomControls.setOnZoomInClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        zoomIn();
+      }
+    });
+    zoomControls.setOnZoomOutClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        zoomOut();
+      }
+    });
+    return view;
+  }
+
+  @SuppressWarnings("deprecation")
+  @Override
+  public void onStart() {
+    super.onStart();
+    ViewGroup layout = (ViewGroup) getActivity().findViewById(R.id.chart_view_layout);
+    LayoutParams layoutParams = new LayoutParams(
+        LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
+    layout.addView(chartView, layoutParams);
+  }
+  
+  @Override
+  public void onResume() {
+    super.onResume();
+    resumeTrackDataHub();
+    checkChartSettings();
+    getActivity().runOnUiThread(updateChart);
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    pauseTrackDataHub();
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    ViewGroup layout = (ViewGroup) getActivity().findViewById(R.id.chart_view_layout);
+    layout.removeView(chartView);
+  }
+
+  @Override
+  public void onLocationStateChanged(LocationState state) {
+    // We don't care.
+  }
+
+  @Override
+  public void onLocationChanged(Location loc) {
+    // We don't care.
+  }
+
+  @Override
+  public void onHeadingChanged(double heading) {
+    // We don't care.
+  }
+
+  @Override
+  public void onSelectedTrackChanged(Track track, boolean isRecording) {
+    // We don't care.
+  }
+
+  @Override
+  public void onTrackUpdated(Track track) {
+    if (track == null || track.getTripStatistics() == null) {
+      trackMaxSpeed = 0.0;
+      return;
+    }
+    trackMaxSpeed = track.getTripStatistics().getMaxSpeed();
+  }
+
+  @Override
+  public void clearTrackPoints() {
+    totalDistance = 0.0;
+    startTime = -1L;
+    lastLocation = null;
+    
+    elevationBuffer.reset();
+    speedBuffer.reset();
+    pendingPoints.clear();
+    
+    chartView.reset();
+
+    getActivity().runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        chartView.resetScroll();
+      }
+    });
+  }
+
+  @Override
+  public void onSampledInTrackPoint(Location location) {
+    if (LocationUtils.isValidLocation(location)) {
+      double[] data = new double[ChartView.NUM_SERIES + 1];
+      fillDataPoint(location, data);
+      pendingPoints.add(data);
+    }
+  }
+
+  @Override
+  public void onSampledOutTrackPoint(Location location) {
+    if (LocationUtils.isValidLocation(location)) {
+      // Still account for the point in the smoothing buffers.
+      fillDataPoint(location, null);
+    }
+  }
+
+  @Override
+  public void onSegmentSplit() {
+    // Do nothing.
+  }
+
+  @Override
+  public void onNewTrackPointsDone() {
+    chartView.addDataPoints(pendingPoints);
+    pendingPoints.clear();
+    getActivity().runOnUiThread(updateChart);
+  }
+
+  @Override
+  public void clearWaypoints() {
+    chartView.clearWaypoints();
+  }
+
+  @Override
+  public void onNewWaypoint(Waypoint waypoint) {
+    if (waypoint != null && LocationUtils.isValidLocation(waypoint.getLocation())) {
+      chartView.addWaypoint(waypoint);
+    }
+  }
+
+  @Override
+  public void onNewWaypointsDone() {
+    getActivity().runOnUiThread(updateChart);
+  }
+
+  @Override
+  public boolean onMetricUnitsChanged(boolean metric) {
+    if (metricUnits == metric) {
+      return false;
+    }
+    metricUnits = metric;
+    chartView.setMetricUnits(metricUnits);
+    getActivity().runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        chartView.requestLayout();
+      }
+    });
+    return true;
+  }
+
+  @Override
+  public boolean onReportSpeedChanged(boolean speed) {
+    if (reportSpeed == speed) {
+      return false;
+    }
+    reportSpeed = speed;
+    chartView.setReportSpeed(reportSpeed);
+    boolean chartShowSpeed = PreferencesUtils.getBoolean(
+        getActivity(), R.string.chart_show_speed_key, PreferencesUtils.CHART_SHOW_SPEED_DEFAULT);
+    setSeriesEnabled(ChartView.SPEED_SERIES, chartShowSpeed && reportSpeed);
+    setSeriesEnabled(ChartView.PACE_SERIES, chartShowSpeed && !reportSpeed);
+    getActivity().runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        chartView.requestLayout();
+      }
+    });
+    return true;
+  }
+
+  /**
+   * Checks the chart settings.
+   */
+  private void checkChartSettings() {
+    boolean needUpdate = false;
+    if (chartByDistance != PreferencesUtils.getBoolean(getActivity(),
+        R.string.chart_by_distance_key, PreferencesUtils.CHART_BY_DISTANCE_DEFAULT)) {
+      chartByDistance = !chartByDistance;
+      chartView.setChartByDistance(chartByDistance);
+      reloadTrackDataHub();
+      needUpdate = true;
+    }
+    if (setSeriesEnabled(ChartView.ELEVATION_SERIES, PreferencesUtils.getBoolean(getActivity(),
+        R.string.chart_show_elevation_key, PreferencesUtils.CHART_SHOW_ELEVATION_DEFAULT))) {
+      needUpdate = true;
+    }
+    
+    boolean chartShowSpeed = PreferencesUtils.getBoolean(
+        getActivity(), R.string.chart_show_speed_key, PreferencesUtils.CHART_SHOW_SPEED_DEFAULT);
+    if (setSeriesEnabled(ChartView.SPEED_SERIES, chartShowSpeed && reportSpeed)) {
+      needUpdate = true;
+    }
+    if (setSeriesEnabled(ChartView.PACE_SERIES, chartShowSpeed && !reportSpeed)) {
+      needUpdate = true;
+    }
+    if (setSeriesEnabled(ChartView.POWER_SERIES, PreferencesUtils.getBoolean(
+        getActivity(), R.string.chart_show_power_key, PreferencesUtils.CHART_SHOW_POWER_DEFAULT))) {
+      needUpdate = true;
+    }
+    if (setSeriesEnabled(ChartView.CADENCE_SERIES, PreferencesUtils.getBoolean(getActivity(),
+        R.string.chart_show_cadence_key, PreferencesUtils.CHART_SHOW_CADENCE_DEFAULT))) {
+      needUpdate = true;
+    }
+    if (setSeriesEnabled(ChartView.HEART_RATE_SERIES, PreferencesUtils.getBoolean(getActivity(),
+        R.string.chart_show_heart_rate_key, PreferencesUtils.CHART_SHOW_HEART_RATE_DEFAULT))) {
+      needUpdate = true;
+    }
+    if (needUpdate) {
+      chartView.postInvalidate();
+    }
+  }
+
+  /**
+   * Sets the series enabled value.
+   * 
+   * @param index the series index
+   * @param value the value
+   * @return true if changed
+   */
+  private boolean setSeriesEnabled(int index, boolean value) {
+    if (chartShow[index] != value) {
+      chartShow[index] = value;
+      chartView.setChartValueSeriesEnabled(index, value);
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  /**
+   * Resumes the trackDataHub. Needs to be synchronized because trackDataHub can be
+   * accessed by multiple threads.
+   */
+  private synchronized void resumeTrackDataHub() {
+    trackDataHub = ((TrackDetailActivity) getActivity()).getTrackDataHub();
+    trackDataHub.registerTrackDataListener(this, EnumSet.of(
+        TrackDataType.SELECTED_TRACK,
+        TrackDataType.TRACKS_TABLE,
+        TrackDataType.WAYPOINTS_TABLE,
+        TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE,
+        TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE,
+        TrackDataType.PREFERENCE));
+  }
+
+  /**
+   * Pauses the trackDataHub. Needs to be synchronized because trackDataHub can
+   * be accessed by multiple threads.
+   */
+  private synchronized void pauseTrackDataHub() {
+    trackDataHub.unregisterTrackDataListener(this);
+    trackDataHub = null;
+  }
+
+  /**
+   * Returns true if the selected track is recording. Needs to be synchronized
+   * because trackDataHub can be accessed by multiple threads.
+   */
+  private synchronized boolean isSelectedTrackRecording() {
+    return trackDataHub != null && trackDataHub.isSelectedTrackRecording();
+  }
+
+  /**
+   * Reloads the trackDataHub. Needs to be synchronized because trackDataHub can be
+   * accessed by multiple threads. 
+   */
+  private synchronized void reloadTrackDataHub() {
+    if (trackDataHub != null) {
+      trackDataHub.reloadDataForListener(this);
+    }
+  }
+  
+  /**
+   * To zoom in.
+   */
+  private void zoomIn() {
+    chartView.zoomIn();
+    zoomControls.setIsZoomInEnabled(chartView.canZoomIn());
+    zoomControls.setIsZoomOutEnabled(chartView.canZoomOut());
+  }
+
+  /**
+   * To zoom out.
+   */
+  private void zoomOut() {
+    chartView.zoomOut();
+    zoomControls.setIsZoomInEnabled(chartView.canZoomIn());
+    zoomControls.setIsZoomOutEnabled(chartView.canZoomOut());
+  }
+  
+  /**
+   * Given a location, fill in a data point, an array of double[]. <br>
+   * data[0] = time/distance <br>
+   * data[1] = elevation <br>
+   * data[2] = speed <br>
+   * data[3] = pace <br>
+   * data[4] = heart rate <br>
+   * data[5] = cadence <br>
+   * data[6] = power <br>
+   * 
+   * @param location the location
+   * @param data the data point to fill in, can be null
+   */
+  @VisibleForTesting
+  void fillDataPoint(Location location, double data[]) {
+    double timeOrDistance = Double.NaN;
+    double elevation = Double.NaN;
+    double speed = Double.NaN;
+    double pace = Double.NaN;
+    double heartRate = Double.NaN;
+    double cadence = Double.NaN;
+    double power = Double.NaN;
+   
+    // TODO: Use TripStatisticsBuilder
+    if (chartByDistance) {
+      if (lastLocation != null) {
+        double distance = lastLocation.distanceTo(location) * UnitConversions.M_TO_KM;
+        if (metricUnits) {
+          totalDistance += distance;
+        } else {
+          totalDistance += distance * UnitConversions.KM_TO_MI;
+        }
+      }
+      timeOrDistance = totalDistance;
+    } else {
+      if (startTime == -1L) {
+        startTime = location.getTime();
+      }
+      timeOrDistance = location.getTime() - startTime;
+    }
+  
+    elevationBuffer.setNext(metricUnits ? location.getAltitude() : location.getAltitude()
+        * UnitConversions.M_TO_FT);
+    elevation = elevationBuffer.getAverage();
+  
+    if (lastLocation == null) {
+      if (Math.abs(location.getSpeed() - INVALID_SPEED) > 1) {
+        speedBuffer.setNext(location.getSpeed());
+      }
+    } else if (TripStatisticsBuilder.isValidSpeed(location.getTime(), location.getSpeed(),
+        lastLocation.getTime(), lastLocation.getSpeed(), speedBuffer)
+        && (location.getSpeed() <= trackMaxSpeed)) {
+      speedBuffer.setNext(location.getSpeed());
+    }
+    speed = speedBuffer.getAverage() * UnitConversions.MS_TO_KMH;
+    if (!metricUnits) {
+      speed *= UnitConversions.KM_TO_MI;
+    }
+    pace = speed == 0 ? 0.0 : 60.0 / speed;
+
+    if (location instanceof MyTracksLocation
+        && ((MyTracksLocation) location).getSensorDataSet() != null) {
+      SensorDataSet sensorDataSet = ((MyTracksLocation) location).getSensorDataSet();
+      if (sensorDataSet.hasHeartRate()
+          && sensorDataSet.getHeartRate().getState() == Sensor.SensorState.SENDING
+          && sensorDataSet.getHeartRate().hasValue()) {
+        heartRate = sensorDataSet.getHeartRate().getValue();
+      }
+      if (sensorDataSet.hasCadence()
+          && sensorDataSet.getCadence().getState() == Sensor.SensorState.SENDING
+          && sensorDataSet.getCadence().hasValue()) {
+        cadence = sensorDataSet.getCadence().getValue();
+      }
+      if (sensorDataSet.hasPower()
+          && sensorDataSet.getPower().getState() == Sensor.SensorState.SENDING
+          && sensorDataSet.getPower().hasValue()) {
+        power = sensorDataSet.getPower().getValue();
+      }
+    }
+
+    if (data != null) {
+      data[0] = timeOrDistance;
+      data[1] = elevation;
+      data[2] = speed;
+      data[3] = pace;
+      data[4] = heartRate;
+      data[5] = cadence;
+      data[6] = power;
+    }
+    lastLocation = location;
+  }
+
+  @VisibleForTesting
+  ChartView getChartView() {
+    return chartView;
+  }
+
+  @VisibleForTesting
+  void setChartView(ChartView view) {
+    chartView = view;
+  }
+  
+  @VisibleForTesting
+  void setTrackMaxSpeed(double value) {
+    trackMaxSpeed = value;
+  }
+  
+  @VisibleForTesting
+  void setMetricUnits(boolean value) {
+    metricUnits = value;
+  }
+  
+  @VisibleForTesting
+  void setReportSpeed(boolean value) {
+    reportSpeed = value;
+  }
+  @VisibleForTesting
+  void setChartByDistance(boolean value) {
+    chartByDistance = value;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/CheckUnitsDialogFragment.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.TrackListActivity;
+import com.google.android.apps.mytracks.util.EulaUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+
+import java.util.Locale;
+
+/**
+ * A DialogFragment to check preferred units.
+ *
+ * @author Jimmy Shih
+ */
+public class CheckUnitsDialogFragment extends DialogFragment {
+
+  public static final String CHECK_UNITS_DIALOG_TAG = "checkUnitsDialog";
+  
+  @Override
+  public void onCancel(DialogInterface arg0) {
+    onDone();
+  }
+  
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {    
+    Locale defaultLocale = Locale.getDefault();        
+    boolean defaultMetric = !defaultLocale.equals(Locale.US) && !defaultLocale.equals(Locale.UK);
+    PreferencesUtils.setBoolean(getActivity(), R.string.metric_units_key, defaultMetric);
+    final String metric = getString(R.string.settings_stats_units_metric);
+    final String imperial = getString(R.string.settings_stats_units_imperial);
+    final CharSequence[] items = defaultMetric ? new CharSequence[] { metric, imperial }
+        : new CharSequence[] { imperial, metric };
+    return new AlertDialog.Builder(getActivity())
+        .setPositiveButton(R.string.generic_ok, new DialogInterface.OnClickListener() {
+          @Override
+          public void onClick(DialogInterface dialog, int which) {
+            int position = ((AlertDialog) dialog).getListView().getCheckedItemPosition();
+            PreferencesUtils.setBoolean(
+                getActivity(), R.string.metric_units_key, items[position].equals(metric));
+            onDone();
+          }
+        })
+        .setSingleChoiceItems(items, 0, null)
+        .setTitle(R.string.settings_stats_units_title).create();
+  }
+  
+  /**
+   * Tasks to perform when done.
+   */
+  private void onDone() {
+    EulaUtils.setShowCheckUnits(getActivity());
+    TrackListActivity trackListActivity = (TrackListActivity) getActivity();
+    trackListActivity.showStartupDialogs();   
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/ChooseActivityDialogFragment.java

@@ -0,0 +1,260 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.io.sendtogoogle.SendRequest;
+import com.google.android.apps.mytracks.io.sendtogoogle.ConfirmSharingActivity;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.ActivityInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+import android.support.v4.app.ShareCompat;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+
+/**
+ * A DialogFragment to choose an activity.
+ * 
+ * @author Jimmy Shih
+ */
+public class ChooseActivityDialogFragment extends DialogFragment {
+
+  public static final String CHOOSE_ACTIVITY_DIALOG_TAG = "chooseActivityDialog";
+
+  private static final String KEY_TRACK_ID = "trackId";
+  private static final String KEY_TRACK_URL = "trackUrl";
+
+  private PackageManager packageManager;
+
+  public static ChooseActivityDialogFragment newInstance(long trackId, String trackUrl) {
+    Bundle bundle = new Bundle();
+    bundle.putLong(KEY_TRACK_ID, trackId);
+    bundle.putString(KEY_TRACK_URL, trackUrl);
+
+    ChooseActivityDialogFragment chooseActivityDialogFragment = new ChooseActivityDialogFragment();
+    chooseActivityDialogFragment.setArguments(bundle);
+    return chooseActivityDialogFragment;
+  }
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    packageManager = getActivity().getPackageManager();
+    List<DisplayInfo> displayInfos = getDisplayInfos();
+
+    ArrayAdapter<DisplayInfo> arrayAdapter = new ArrayAdapter<DisplayInfo>(getActivity(),
+        R.layout.choose_activity_list_item, R.id.choose_activity_list_item_text1, displayInfos) {
+        @Override
+      public View getView(int position, View convertView, ViewGroup parent) {
+        View view;
+        if (convertView == null) {
+          view = getActivity()
+              .getLayoutInflater().inflate(R.layout.choose_activity_list_item, parent, false);
+        } else {
+          view = convertView;
+        }
+        DisplayInfo displayInfo = getItem(position);
+        TextView text1 = (TextView) view.findViewById(R.id.choose_activity_list_item_text1);
+        TextView text2 = (TextView) view.findViewById(R.id.choose_activity_list_item_text2);
+        ImageView icon = (ImageView) view.findViewById(R.id.choose_activity_list_item_icon);
+        text1.setText(displayInfo.primaryLabel);
+        if (displayInfo.secondaryLabel != null) {
+          text2.setVisibility(View.VISIBLE);
+          text2.setText(displayInfo.secondaryLabel);
+        } else {
+          text2.setVisibility(View.GONE);
+        }
+        icon.setImageDrawable(displayInfo.icon);
+        return view;
+      }
+    };
+    return new AlertDialog.Builder(getActivity())
+        .setSingleChoiceItems(arrayAdapter, 0, new DialogInterface.OnClickListener() {
+            @Override
+          public void onClick(DialogInterface dialog, int which) {
+            AlertDialog alertDialog = (AlertDialog) dialog;
+            DisplayInfo displayInfo = (DisplayInfo) alertDialog.getListView()
+                .getItemAtPosition(which);
+            ActivityInfo activityInfo = displayInfo.resolveInfo.activityInfo;
+            String packageName = activityInfo.applicationInfo.packageName;
+            String className = activityInfo.name;
+            
+            long trackId = getArguments().getLong(KEY_TRACK_ID);
+            String trackUrl = getArguments().getString(KEY_TRACK_URL);
+            if (trackUrl == null) {
+              SendRequest sendRequest = new SendRequest(trackId);
+              sendRequest.setSendMaps(true);
+              sendRequest.setNewMap(true);
+              sendRequest.setSharingAppPackageName(packageName);
+              sendRequest.setSharingAppClassName(className);
+              Intent intent = IntentUtils.newIntent(getActivity(), ConfirmSharingActivity.class)
+                  .putExtra(SendRequest.SEND_REQUEST_KEY, sendRequest);
+              startActivity(intent);
+              dismiss();
+            } else {
+              Intent intent = IntentUtils.newShareUrlIntent(
+                  getActivity(), trackId, trackUrl, packageName, className);
+              startActivity(intent);
+              getActivity().finish();
+            }
+          }
+        })
+        .setTitle(R.string.share_track_picker_title)
+        .create();
+  }
+
+  /**
+   * Gets the display info.
+   */
+  private List<DisplayInfo> getDisplayInfos() {
+    List<DisplayInfo> displayInfos = new ArrayList<DisplayInfo>();
+    Intent intent = ShareCompat.IntentBuilder.from(getActivity())
+        .setType(IntentUtils.TEXT_PLAIN_TYPE).getIntent();
+    List<ResolveInfo> resolveInfos = packageManager.queryIntentActivities(
+        intent, PackageManager.MATCH_DEFAULT_ONLY);
+    if (resolveInfos != null && resolveInfos.size() > 0) {
+      int size = resolveInfos.size();
+      ResolveInfo firstResolveInfo = resolveInfos.get(0);
+      for (int i = 1; i < size; i++) {
+        ResolveInfo resolveInfo = resolveInfos.get(i);
+        if (firstResolveInfo.priority != resolveInfo.priority
+            || firstResolveInfo.isDefault != resolveInfo.isDefault) {
+          while (i < size) {
+            resolveInfos.remove(i);
+            size--;
+          }
+        }
+      }
+      if (size > 1) {
+        ResolveInfo.DisplayNameComparator displayNameComparator = new ResolveInfo.DisplayNameComparator(
+            packageManager);
+        Collections.sort(resolveInfos, displayNameComparator);
+      }
+
+      firstResolveInfo = resolveInfos.get(0);
+      int start = 0;
+      CharSequence firstLabel = firstResolveInfo.loadLabel(packageManager);
+      for (int i = 1; i < size; i++) {
+        if (firstLabel == null) {
+          firstLabel = firstResolveInfo.activityInfo.packageName;
+        }
+        ResolveInfo resolveInfo = resolveInfos.get(i);
+        CharSequence label = resolveInfo.loadLabel(packageManager);
+        if (label == null) {
+          label = resolveInfo.activityInfo.packageName;
+        }
+        if (label.equals(firstLabel)) {
+          continue;
+        }
+        processGroup(resolveInfos, displayInfos, start, i - 1);
+        firstResolveInfo = resolveInfo;
+        firstLabel = label;
+        start = i;
+      }
+      // Process last group
+      processGroup(resolveInfos, displayInfos, start, size - 1);
+    }
+    return displayInfos;
+  }
+
+  /**
+   * Contains display info.
+   * 
+   * @author Jimmy Shih
+   */
+  private final class DisplayInfo {
+    private ResolveInfo resolveInfo;
+    private CharSequence primaryLabel;
+    private CharSequence secondaryLabel;
+    private Drawable icon;
+
+    public DisplayInfo(ResolveInfo resolveInfo, CharSequence primaryLabel,
+        CharSequence secondaryLabel, Drawable icon) {
+      this.resolveInfo = resolveInfo;
+      this.primaryLabel = primaryLabel;
+      this.secondaryLabel = secondaryLabel;
+      this.icon = icon;
+    }
+  }
+
+  /**
+   * Processes a group of items with the same label.
+   * 
+   * @param resolveInfos list of resolve infos
+   * @param displayInfos list of display infos
+   * @param start start index
+   * @param end end index
+   */
+  private void processGroup(
+      List<ResolveInfo> resolveInfos, List<DisplayInfo> displayInfos, int start, int end) {
+    ResolveInfo startResolveInfo = resolveInfos.get(start);
+    CharSequence primaryLabel = startResolveInfo.loadLabel(packageManager);
+    Drawable icon = startResolveInfo.loadIcon(packageManager);
+
+    int num = end - start + 1;
+    if (num == 1) {
+      // Only one, set the secondary label to null
+      displayInfos.add(new DisplayInfo(startResolveInfo, primaryLabel, null, icon));
+    } else {
+      // Decide package name or application name for the secondary label
+      boolean usePackageName = false;
+      CharSequence appName = startResolveInfo.activityInfo.applicationInfo.loadLabel(
+          packageManager);
+      if (appName == null) {
+        usePackageName = true;
+      } else {
+        // Use HashSet to track duplicates
+        HashSet<CharSequence> duplicates = new HashSet<CharSequence>();
+        duplicates.add(appName);
+        for (int i = start + 1; i <= end; i++) {
+          ResolveInfo resolveInfo = resolveInfos.get(i);
+          CharSequence name = resolveInfo.activityInfo.applicationInfo.loadLabel(packageManager);
+          if ((name == null) || (duplicates.contains(name))) {
+            usePackageName = true;
+            break;
+          } else {
+            duplicates.add(name);
+          }
+        }
+        // Clear HashSet for later use
+        duplicates.clear();
+      }
+      for (int i = start; i <= end; i++) {
+        ResolveInfo resolveInfo = resolveInfos.get(i);
+        CharSequence secondaryLabel = usePackageName ? resolveInfo.activityInfo.packageName
+            : resolveInfo.activityInfo.applicationInfo.loadLabel(packageManager);
+        displayInfos.add(new DisplayInfo(resolveInfo, primaryLabel, secondaryLabel, icon));
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/ChooseUploadServiceDialogFragment.java

@@ -0,0 +1,174 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.io.sendtogoogle.AccountChooserActivity;
+import com.google.android.apps.mytracks.io.sendtogoogle.SendRequest;
+import com.google.android.apps.mytracks.util.AnalyticsUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+import android.view.View;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.RadioButton;
+import android.widget.TableRow;
+import android.widget.Toast;
+
+/**
+ * A DialogFragment to choose upload service.
+ * 
+ * @author Jimmy Shih
+ */
+public class ChooseUploadServiceDialogFragment extends DialogFragment {
+
+  public static final String CHOOSE_UPLOAD_SERVICE_DIALOG_TAG = "chooseUploadService";
+
+  private static final String KEY_SEND_REQUEST = "sendRequest";
+
+  public static ChooseUploadServiceDialogFragment newInstance(SendRequest sendRequest) {
+    Bundle bundle = new Bundle();
+    bundle.putParcelable(KEY_SEND_REQUEST, sendRequest);
+
+    ChooseUploadServiceDialogFragment chooseUploadServiceDialogFragment =
+        new ChooseUploadServiceDialogFragment();
+    chooseUploadServiceDialogFragment.setArguments(bundle);
+    return chooseUploadServiceDialogFragment;
+  }
+
+  private SendRequest sendRequest;
+
+  private CheckBox mapsCheckBox;
+  private CheckBox fusionTablesCheckBox;
+  private CheckBox docsCheckBox;
+
+  private TableRow mapsOptionTableRow;
+  private RadioButton existingMapRadioButton;
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    sendRequest = getArguments().getParcelable(KEY_SEND_REQUEST);
+    View view = getActivity().getLayoutInflater().inflate(R.layout.choose_upload_service, null);
+
+    mapsCheckBox = (CheckBox) view.findViewById(R.id.choose_upload_service_maps);
+    fusionTablesCheckBox = (CheckBox) view.findViewById(R.id.choose_upload_service_fusion_tables);
+    docsCheckBox = (CheckBox) view.findViewById(R.id.choose_upload_service_docs);
+
+    mapsCheckBox.setChecked(PreferencesUtils.getBoolean(
+        getActivity(), R.string.send_to_maps_key, PreferencesUtils.SEND_TO_MAPS_DEFAULT));
+    fusionTablesCheckBox.setChecked(PreferencesUtils.getBoolean(
+        getActivity(), R.string.send_to_fusion_tables_key,
+        PreferencesUtils.SEND_TO_FUSION_TABLES_DEFAULT));
+    docsCheckBox.setChecked(PreferencesUtils.getBoolean(
+        getActivity(), R.string.send_to_docs_key, PreferencesUtils.SEND_TO_DOCS_DEFAULT));
+
+    mapsCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+      public void onCheckedChanged(CompoundButton button, boolean checked) {
+        updateMapsOption();
+      }
+    });
+
+    mapsOptionTableRow = (TableRow) view.findViewById(R.id.choose_upload_service_maps_options);
+
+    RadioButton newMapRadioButton = (RadioButton) view.findViewById(
+        R.id.choose_upload_service_new_map);
+    boolean defaultMapPublic = PreferencesUtils.getBoolean(getActivity(),
+        R.string.default_map_public_key, PreferencesUtils.DEFAULT_MAP_PUBLIC_DEFAULT);
+    newMapRadioButton.setText(defaultMapPublic ? R.string.send_google_new_public_map
+        : R.string.send_google_new_unlisted_map);
+
+    existingMapRadioButton = (RadioButton) view.findViewById(
+        R.id.choose_upload_service_existing_map);
+
+    updateMapsOption();
+    if (PreferencesUtils.getBoolean(getActivity(), R.string.pick_existing_map_key,
+        PreferencesUtils.PICK_EXISTING_MAP_DEFAULT)) {
+      existingMapRadioButton.setChecked(true);
+    } else {
+      newMapRadioButton.setChecked(true);
+    }
+
+    return new AlertDialog.Builder(getActivity()).setNegativeButton(R.string.generic_cancel, null)
+        .setPositiveButton(R.string.send_google_send_now, new DialogInterface.OnClickListener() {
+            @Override
+          public void onClick(DialogInterface dialog, int which) {
+            PreferencesUtils.setBoolean(
+                getActivity(), R.string.pick_existing_map_key, existingMapRadioButton.isChecked());
+            PreferencesUtils.setBoolean(
+                getActivity(), R.string.send_to_maps_key, mapsCheckBox.isChecked());
+            PreferencesUtils.setBoolean(getActivity(), R.string.send_to_fusion_tables_key,
+                fusionTablesCheckBox.isChecked());
+            PreferencesUtils.setBoolean(
+                getActivity(), R.string.send_to_docs_key, docsCheckBox.isChecked());
+            if (mapsCheckBox.isChecked() || fusionTablesCheckBox.isChecked()
+                || docsCheckBox.isChecked()) {
+              startNextActivity();
+            } else {
+              Toast.makeText(
+                  getActivity(), R.string.send_google_no_service_selected, Toast.LENGTH_LONG)
+                  .show();
+            }
+          }
+        })
+        .setTitle(R.string.send_google_title)
+        .setView(view)
+        .create();
+  }
+
+  /**
+   * Updates map option.
+   */
+  private void updateMapsOption() {
+    mapsOptionTableRow.setVisibility(mapsCheckBox.isChecked() ? View.VISIBLE : View.GONE);
+  }
+
+  /**
+   * Starts the next activity, {@link AccountChooserActivity}.
+   */
+  private void startNextActivity() {
+    sendRequest.setSendMaps(mapsCheckBox.isChecked());
+    sendRequest.setSendFusionTables(fusionTablesCheckBox.isChecked());
+    sendRequest.setSendDocs(docsCheckBox.isChecked());
+    sendRequest.setNewMap(!existingMapRadioButton.isChecked());
+    sendStats();
+    Intent intent = IntentUtils.newIntent(getActivity(), AccountChooserActivity.class)
+        .putExtra(SendRequest.SEND_REQUEST_KEY, sendRequest);
+    startActivity(intent);
+  }
+
+  /**
+   * Sends stats to Google Analytics.
+   */
+  private void sendStats() {
+    if (sendRequest.isSendMaps()) {
+      AnalyticsUtils.sendPageViews(getActivity(), "/send/maps");
+    }
+    if (sendRequest.isSendFusionTables()) {
+      AnalyticsUtils.sendPageViews(getActivity(), "/send/fusion_tables");
+    }
+    if (sendRequest.isSendDocs()) {
+      AnalyticsUtils.sendPageViews(getActivity(), "/send/docs");
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/DeleteAllTrackDialogFragment.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+
+/**
+ * A DialogFragment to delete all tracks.
+ * 
+ * @author Jimmy Shih
+ */
+public class DeleteAllTrackDialogFragment extends DialogFragment {
+
+  public static final String DELETE_ALL_TRACK_DIALOG_TAG = "deleteAllTrackDialog";
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    return DialogUtils.createConfirmationDialog(getActivity(),
+        R.string.track_list_delete_all_confirm_message, new DialogInterface.OnClickListener() {
+          @Override
+          public void onClick(DialogInterface dialog, int which) {
+            new Thread(new Runnable() {
+              @Override
+              public void run() {
+                MyTracksProviderUtils.Factory.get(getActivity()).deleteAllTracks();
+              }
+            }).start();
+          }
+        });
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/DeleteOneMarkerDialogFragment.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.MarkerListActivity;
+import com.google.android.apps.mytracks.content.DescriptionGeneratorImpl;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+
+/**
+ * A DialogFragment to delete one marker.
+ *
+ * @author Jimmy Shih
+ */
+public class DeleteOneMarkerDialogFragment extends DialogFragment {
+
+  public static final String DELETE_ONE_MARKER_DIALOG_TAG = "deleteOneMarkerDialog";
+  private static final String KEY_MARKER_ID = "markerId";
+  private static final String KEY_TRACK_ID = "trackId";
+
+  public static DeleteOneMarkerDialogFragment newInstance(long markerId, long trackId) {
+    Bundle bundle = new Bundle();
+    bundle.putLong(KEY_MARKER_ID, markerId);
+    bundle.putLong(KEY_TRACK_ID, trackId);
+
+    DeleteOneMarkerDialogFragment deleteOneMarkerDialogFragment = new DeleteOneMarkerDialogFragment();
+    deleteOneMarkerDialogFragment.setArguments(bundle);
+    return deleteOneMarkerDialogFragment;
+  }
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    return DialogUtils.createConfirmationDialog(getActivity(),
+        R.string.marker_delete_one_marker_confirm_message, new DialogInterface.OnClickListener() {
+          @Override
+          public void onClick(DialogInterface dialog, int which) {
+            new Thread(new Runnable() {
+              @Override
+              public void run() {
+                MyTracksProviderUtils.Factory.get(getActivity()).deleteWaypoint(
+                    getArguments().getLong(KEY_MARKER_ID),
+                    new DescriptionGeneratorImpl(getActivity()));
+              }
+            }).start();
+            Intent intent = IntentUtils.newIntent(getActivity(), MarkerListActivity.class)
+                .putExtra(MarkerListActivity.EXTRA_TRACK_ID, getArguments().getLong(KEY_TRACK_ID));
+            startActivity(intent);
+            // Close the activity since its content can change after delete.
+            getActivity().finish();
+          }
+        });
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/DeleteOneTrackDialogFragment.java

@@ -0,0 +1,101 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.TrackListActivity;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.services.TrackRecordingServiceConnection;
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.TrackRecordingServiceConnectionUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+
+/**
+ * A DialogFragment to delete one track.
+ * 
+ * @author Jimmy Shih
+ */
+public class DeleteOneTrackDialogFragment extends DialogFragment {
+
+  public static final String DELETE_ONE_TRACK_DIALOG_TAG = "deleteOneTrackDialog";
+  private static final String KEY_TRACK_ID = "trackId";
+
+  /**
+   * Interface for caller of this dialog fragment.
+   * 
+   * @author Jimmy Shih
+   */
+  public interface DeleteOneTrackCaller {
+    public TrackRecordingServiceConnection getTrackRecordingServiceConnection();
+  }
+
+  private DeleteOneTrackCaller caller;
+
+  public static DeleteOneTrackDialogFragment newInstance(long trackId) {
+    Bundle bundle = new Bundle();
+    bundle.putLong(KEY_TRACK_ID, trackId);
+
+    DeleteOneTrackDialogFragment deleteOneTrackDialogFragment = new DeleteOneTrackDialogFragment();
+    deleteOneTrackDialogFragment.setArguments(bundle);
+    return deleteOneTrackDialogFragment;
+  }
+
+  @Override
+  public void onAttach(Activity activity) {
+    super.onAttach(activity);
+    try {
+      caller = (DeleteOneTrackCaller) activity;
+    } catch (ClassCastException e) {
+      throw new ClassCastException(activity.toString() + " must implement DeleteOneTrackCaller");
+    }
+  }
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    return DialogUtils.createConfirmationDialog(getActivity(),
+        R.string.track_detail_delete_confirm_message, new DialogInterface.OnClickListener() {
+            @Override
+          public void onClick(DialogInterface dialog, int which) {
+            final long trackId = getArguments().getLong(KEY_TRACK_ID);
+            final Context context = getActivity();
+            if (trackId == PreferencesUtils.getLong(context, R.string.recording_track_id_key)) {
+              TrackRecordingServiceConnectionUtils.stop(
+                  context, caller.getTrackRecordingServiceConnection(), false);
+            }
+            new Thread(new Runnable() {
+              @Override
+              public void run() {
+                MyTracksProviderUtils.Factory.get(context).deleteTrack(trackId);
+              }
+            }).start();
+            Intent intent = IntentUtils.newIntent(context, TrackListActivity.class);
+            startActivity(intent);
+            // Close the activity since its content can change after delete
+            getActivity().finish();
+          }
+        });
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/EulaDialogFragment.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.TrackListActivity;
+import com.google.android.apps.mytracks.util.EulaUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+
+/**
+ * A DialogFragment to show EULA.
+ * 
+ * @author Jimmy Shih
+ */
+public class EulaDialogFragment extends DialogFragment {
+
+  public static final String EULA_DIALOG_TAG = "eulaDialog";
+  private static final String KEY_HAS_ACCEPTED = "hasAccepted";
+  private static final String GOOGLE_URL = "m.google.com";
+  private static final String KOREAN = "ko";
+
+  /**
+   * Creates a new instance of {@link EulaDialogFragment}.
+   * 
+   * @param hasAccepted true if the user has accepted the eula.
+   */
+  public static EulaDialogFragment newInstance(boolean hasAccepted) {
+    Bundle bundle = new Bundle();
+    bundle.putBoolean(KEY_HAS_ACCEPTED, hasAccepted);
+
+    EulaDialogFragment eulaDialogFragment = new EulaDialogFragment();
+    eulaDialogFragment.setArguments(bundle);
+    return eulaDialogFragment;
+  }
+
+  @Override
+  public void onCancel(DialogInterface arg0) {
+    if (!getArguments().getBoolean(KEY_HAS_ACCEPTED)) {
+      exitApp();
+    }
+  }
+  
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    boolean hasAccepted = getArguments().getBoolean(KEY_HAS_ACCEPTED);
+    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity())
+        .setMessage(getEulaText())
+        .setTitle(R.string.eula_title);
+
+    if (hasAccepted) {
+      builder.setPositiveButton(R.string.generic_ok, null);
+    } else {
+      builder.setNegativeButton(R.string.eula_decline, new DialogInterface.OnClickListener() {
+        @Override
+        public void onClick(DialogInterface dialog, int which) {
+          exitApp();
+        }
+      })
+      .setPositiveButton(R.string.eula_accept, new DialogInterface.OnClickListener() {
+        @Override
+        public void onClick(DialogInterface dialog, int which) {
+          EulaUtils.setAcceptEula(getActivity());
+          TrackListActivity trackListActivity = (TrackListActivity) getActivity();
+          trackListActivity.showStartupDialogs();
+        }
+      });
+    }
+    return builder.create();
+  }
+
+  /**
+   * Exits the application.
+   */
+  private void exitApp() {
+    getActivity().finish();
+  }
+
+  /**
+   * Gets the EULA text.
+   * 
+   */
+  private String getEulaText() {
+    String tos = getString(R.string.eula_date) 
+        + "\n\n"
+        + getString(R.string.eula_body, GOOGLE_URL) 
+        + "\n\n" 
+        + getString(R.string.eula_footer, GOOGLE_URL) 
+        + "\n\n" 
+        + getString(R.string.eula_copyright_year);
+    boolean isKorean = getResources().getConfiguration().locale.getLanguage().equals(KOREAN);
+    if (isKorean) {
+      tos += "\n\n" + getString(R.string.eula_korean);
+    }
+    return tos;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/FrequencyDialogFragment.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+
+/**
+ * A DialogFragment to configure frequency.
+ * 
+ * @author Jimmy Shih
+ */
+public class FrequencyDialogFragment extends DialogFragment {
+
+  public static final String FREQUENCY_DIALOG_TAG = "frequencyDialog";
+
+  private static final String KEY_PREFERENCE_ID = "preferenceId";
+  private static final String KEY_DEFAULT_VALUE = "defaultValue";
+  private static final String KEY_TITLE_ID = "titleId";
+
+  public static FrequencyDialogFragment newInstance(
+      int preferenceId, int defaultValue, int titleId) {
+    Bundle bundle = new Bundle();
+    bundle.putInt(KEY_PREFERENCE_ID, preferenceId);
+    bundle.putInt(KEY_DEFAULT_VALUE, defaultValue);
+    bundle.putInt(KEY_TITLE_ID, titleId);
+
+    FrequencyDialogFragment frequencyDialogFragment = new FrequencyDialogFragment();
+    frequencyDialogFragment.setArguments(bundle);
+    return frequencyDialogFragment;
+  }
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    final int preferenceId = getArguments().getInt(KEY_PREFERENCE_ID);
+    int defaultValue = getArguments().getInt(KEY_DEFAULT_VALUE);
+    int titleId = getArguments().getInt(KEY_TITLE_ID);
+    int frequencyValue = PreferencesUtils.getInt(getActivity(), preferenceId, defaultValue);
+
+    return new AlertDialog.Builder(getActivity())
+        .setPositiveButton(R.string.generic_ok, new DialogInterface.OnClickListener() {
+          @Override
+          public void onClick(DialogInterface dialog, int which) {
+            int listIndex = ((AlertDialog) dialog).getListView().getCheckedItemPosition();
+            PreferencesUtils.setInt(getActivity(), preferenceId, getFrequencyValue(listIndex));
+          }
+        })
+        .setSingleChoiceItems(getFrequencyDisplayOptions(), getListIndex(frequencyValue), null)
+        .setTitle(titleId)
+        .create();
+  }
+
+  /**
+   * Gets the frequency display options.
+   */
+  private String[] getFrequencyDisplayOptions() {
+    boolean metricUnits = PreferencesUtils.getBoolean(
+        getActivity(), R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+    String[] values = getResources().getStringArray(R.array.frequency_values);
+    String[] options = new String[values.length];
+    for (int i = 0; i < values.length; i++) {
+      int value = Integer.parseInt(values[i]);
+      if (value == PreferencesUtils.FREQUENCY_OFF) {
+        options[i] = getString(R.string.value_off);
+      } else if (value < 0) {
+        options[i] = getString(metricUnits ? R.string.value_integer_kilometer
+            : R.string.value_integer_mile, Math.abs(value));
+      } else {
+        options[i] = getString(R.string.value_integer_minute, value);
+      }
+    }
+    return options;
+  }
+
+  /**
+   * Gets the list index for a frequency value. Returns 0 if the value is not on
+   * the list.
+   */
+  private int getListIndex(int frequencyValue) {
+    String[] values = getResources().getStringArray(R.array.frequency_values);
+    for (int i = 0; i < values.length; i++) {
+      if (frequencyValue == Integer.parseInt(values[i])) {
+        return i;
+      }
+    }
+    return 0;
+  }
+
+  /**
+   * Gets the frequency value from a list index.
+   * 
+   * @param listIndex the list index
+   */
+  private int getFrequencyValue(int listIndex) {
+    String[] values = getResources().getStringArray(R.array.frequency_values);
+    return Integer.parseInt(values[listIndex]);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/InstallEarthDialogFragment.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.io.file.SaveActivity;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.ActivityNotFoundException;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+import android.widget.Toast;
+
+/**
+ * A DialogFragment to install Google Earth.
+ *
+ * @author Jimmy Shih
+ */
+public class InstallEarthDialogFragment extends DialogFragment {
+
+  public static final String INSTALL_EARTH_DIALOG_TAG = "installEarthDialog";
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    return new AlertDialog.Builder(getActivity())
+        .setMessage(R.string.track_detail_install_earth_message)
+        .setNegativeButton(android.R.string.cancel, null)
+        .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+          @Override
+          public void onClick(DialogInterface dialog, int which) {
+            Intent intent = new Intent().setData(Uri.parse(SaveActivity.GOOGLE_EARTH_MARKET_URL));
+            try {
+              startActivity(intent);
+            } catch (ActivityNotFoundException e) {
+              Toast.makeText(
+                  getActivity(), R.string.track_detail_install_earth_error, Toast.LENGTH_LONG)
+                  .show();
+            }
+          }
+        })
+        .create();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/MapFragment.java

@@ -0,0 +1,545 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.MapOverlay;
+import com.google.android.apps.mytracks.TrackDetailActivity;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils.Factory;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.TrackDataHub;
+import com.google.android.apps.mytracks.content.TrackDataListener;
+import com.google.android.apps.mytracks.content.TrackDataType;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+import com.google.android.apps.mytracks.util.GeoRect;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.maps.GeoPoint;
+import com.google.android.maps.MapController;
+import com.google.android.maps.MapView;
+import com.google.android.maps.Overlay;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Intent;
+import android.location.Location;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageButton;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.util.EnumSet;
+import java.util.List;
+
+/**
+ * A fragment to display map to the user.
+ *
+ * @author Leif Hendrik Wilden
+ * @author Rodrigo Damazio
+ */
+public class MapFragment extends Fragment
+    implements View.OnTouchListener, View.OnClickListener, TrackDataListener {
+
+  public static final String MAP_FRAGMENT_TAG = "mapFragment";
+  
+  private static final String KEY_CURRENT_LOCATION = "currentLocation";
+  private static final String KEY_KEEP_MY_LOCATION_VISIBLE = "keepMyLocationVisible";
+
+  private TrackDataHub trackDataHub;
+
+  // True to keep my location visible.
+  private boolean keepMyLocationVisible;
+
+  // True to zoom to my location. Only apply when keepMyLocationVisible is true.
+  private boolean zoomToMyLocation;
+
+  // The track id of the marker to show.
+  private long markerTrackId;
+
+  // The marker id to show
+  private long markerId;
+
+  // The current selected track id. Set in onSelectedTrackChanged.
+  private long currentSelectedTrackId;
+
+  // The current location. Set in onCurrentLocationChanged.
+  private Location currentLocation;
+
+  // UI elements
+  private View mapViewContainer;
+  private MapView mapView;
+  private MapOverlay mapOverlay;
+  private ImageButton myLocationImageButton;
+  private TextView messageTextView;
+
+  @Override
+  public void onCreate(Bundle bundle) {
+    super.onCreate(bundle);
+    setHasOptionsMenu(true);
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    mapViewContainer = ((TrackDetailActivity) getActivity()).getMapViewContainer();
+    mapView = (MapView) mapViewContainer.findViewById(R.id.map_view);
+    mapOverlay = new MapOverlay(getActivity());
+    
+    List<Overlay> overlays = mapView.getOverlays();
+    overlays.clear();
+    overlays.add(mapOverlay);
+    
+    mapView.requestFocus();
+    mapView.setOnTouchListener(this);
+    mapView.setBuiltInZoomControls(true);
+    myLocationImageButton = (ImageButton) mapViewContainer.findViewById(R.id.map_my_location);
+    myLocationImageButton.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        showMyLocation();       
+      }
+    });
+    messageTextView = (TextView) mapViewContainer.findViewById(R.id.map_message);
+
+    ApiAdapterFactory.getApiAdapter().invalidMenu(getActivity());
+    return mapViewContainer;
+  }
+
+  @Override
+  public void onActivityCreated(Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    if (savedInstanceState != null) {
+      keepMyLocationVisible = savedInstanceState.getBoolean(KEY_KEEP_MY_LOCATION_VISIBLE, false);
+      currentLocation = (Location) savedInstanceState.getParcelable(KEY_CURRENT_LOCATION);
+      if (currentLocation != null) {
+        updateCurrentLocation();
+      }
+    }
+  }
+
+  @Override
+  public void onResume() {
+    super.onResume();
+    resumeTrackDataHub();
+  }
+
+  @Override
+  public void onSaveInstanceState(Bundle outState) {
+    super.onSaveInstanceState(outState);
+    outState.putBoolean(KEY_KEEP_MY_LOCATION_VISIBLE, keepMyLocationVisible);
+    if (currentLocation != null) {
+      outState.putParcelable(KEY_CURRENT_LOCATION, currentLocation);
+    }
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    pauseTrackDataHub();
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    ViewGroup parentViewGroup = (ViewGroup) mapViewContainer.getParent();
+    if (parentViewGroup != null) {
+      parentViewGroup.removeView(mapViewContainer);
+    }
+  }
+
+  @Override
+  public void onCreateOptionsMenu(Menu menu, MenuInflater menuInflator) {
+    menuInflator.inflate(R.menu.map, menu);
+  }
+
+  @Override
+  public void onPrepareOptionsMenu(Menu menu) {
+    int titleId = R.string.menu_satellite_mode;
+    if (mapView != null) {
+      titleId = mapView.isSatellite() ? R.string.menu_map_mode : R.string.menu_satellite_mode;
+    }
+    menu.findItem(R.id.map_satellite_mode).setTitle(titleId);
+    super.onPrepareOptionsMenu(menu);
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem menuItem) {
+    if (mapView != null && menuItem.getItemId() == R.id.map_satellite_mode) {
+      mapView.setSatellite(!mapView.isSatellite());
+      return true;
+    }
+    return super.onOptionsItemSelected(menuItem);
+  }
+
+  /**
+   * Shows my location.
+   */
+  private void showMyLocation() {
+    updateTrackDataHub();
+    keepMyLocationVisible = true;
+    zoomToMyLocation = true;
+    if (currentLocation != null) {
+      updateCurrentLocation();
+    }
+  }
+
+  /**
+   * Shows the marker.
+   * 
+   * @param id the marker id
+   */
+  private void showMarker(long id) {
+    MyTracksProviderUtils MyTracksProviderUtils = Factory.get(getActivity());
+    Waypoint waypoint = MyTracksProviderUtils.getWaypoint(id);
+    if (waypoint != null && waypoint.getLocation() != null) {
+      keepMyLocationVisible = false;
+      GeoPoint center = new GeoPoint((int) (waypoint.getLocation().getLatitude() * 1E6),
+          (int) (waypoint.getLocation().getLongitude() * 1E6));
+      mapView.getController().setCenter(center);
+      mapView.getController().setZoom(mapView.getMaxZoomLevel());
+      mapView.invalidate();
+    }
+  }
+
+  /**
+   * Shows the marker.
+   *
+   * @param trackId the track id
+   * @param id the marker id
+   */
+  public void showMarker(long trackId, long id) {
+    /*
+     * Synchronize to prevent race condition in changing markerTrackId and
+     * markerId variables.
+     */
+    synchronized (this) {
+      if (trackId == currentSelectedTrackId) {
+        showMarker(id);
+        markerTrackId = -1L;
+        markerId = -1L;
+        return;
+      }
+      markerTrackId = trackId;
+      markerId = id;
+    }
+  }
+
+  @Override
+  public boolean onTouch(View view, MotionEvent event) {
+    if (keepMyLocationVisible && event.getAction() == MotionEvent.ACTION_MOVE) {
+      if (!isVisible(currentLocation)) {
+        /*
+         * Only set to false when no longer visible. Thus can keep showing the
+         * current location with the next location update.
+         */
+        keepMyLocationVisible = false;
+      }
+    }
+    return false;
+  }
+
+  @Override
+  public void onClick(View v) {
+    if (v == messageTextView) {
+      Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
+      startActivity(intent);
+    }
+  }
+
+  @Override
+  public void onLocationStateChanged(LocationState state) {
+    final int messageId;
+    final boolean isGpsDisabled;
+    switch (state) {
+      case DISABLED:
+        messageId = R.string.gps_need_to_enable;
+        isGpsDisabled = true;
+        break;
+      case NO_FIX:
+      case BAD_FIX:
+        messageId = R.string.gps_wait_for_signal;
+        isGpsDisabled = false;
+        break;
+      case GOOD_FIX:
+        messageId = -1;
+        isGpsDisabled = false;
+        break;
+      default:
+        throw new IllegalArgumentException("Unexpected state: " + state);
+    }
+
+    getActivity().runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (messageId != -1) {
+          messageTextView.setText(messageId);
+          messageTextView.setVisibility(View.VISIBLE);
+
+          if (isGpsDisabled) {
+            Toast.makeText(getActivity(), R.string.gps_not_found, Toast.LENGTH_LONG).show();
+
+            // Click to show the location source settings
+            messageTextView.setOnClickListener(MapFragment.this);
+          } else {
+            messageTextView.setOnClickListener(null);
+          }
+        } else {
+          messageTextView.setVisibility(View.GONE);
+        }
+      }
+    });
+  }
+
+  @Override
+  public void onLocationChanged(Location location) {
+    currentLocation = location;
+    updateCurrentLocation();
+  }
+
+  @Override
+  public void onHeadingChanged(double heading) {
+    if (mapOverlay.setHeading((float) heading)) {
+      mapView.postInvalidate();
+    }
+  }
+
+  @Override
+  public void onSelectedTrackChanged(final Track track, final boolean isRecording) {
+    getActivity().runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        boolean hasTrack = track != null;
+        mapOverlay.setTrackDrawingEnabled(hasTrack);
+  
+        if (hasTrack) { 
+          synchronized (this) {
+            /*
+             * Synchronize to prevent race condition in changing markerTrackId
+             * and markerId variables.
+             */
+            currentSelectedTrackId = track.getId();
+            updateMap(track);
+          }
+          mapOverlay.setShowEndMarker(!isRecording);
+        }
+        mapView.invalidate();
+      }
+    });
+  }
+
+  @Override
+  public void onTrackUpdated(Track track) {
+    // We don't care.
+  }
+
+  @Override
+  public void clearTrackPoints() {
+    mapOverlay.clearPoints();
+  }
+
+  @Override
+  public void onSampledInTrackPoint(Location location) {
+    if (LocationUtils.isValidLocation(location)) {
+      mapOverlay.addLocation(location);
+    }
+  }
+
+  @Override
+  public void onSampledOutTrackPoint(Location loc) {
+    // We don't care.
+  }
+
+  @Override
+  public void onSegmentSplit() {
+    mapOverlay.addSegmentSplit();
+  }
+
+  @Override
+  public void onNewTrackPointsDone() {
+    mapView.postInvalidate();
+  }
+
+  @Override
+  public void clearWaypoints() {
+    mapOverlay.clearWaypoints();
+  }
+
+  @Override
+  public void onNewWaypoint(Waypoint waypoint) {
+    if (waypoint != null && LocationUtils.isValidLocation(waypoint.getLocation())) {
+      // TODO: Optimize locking inside addWaypoint
+      mapOverlay.addWaypoint(waypoint);
+    }
+  }
+
+  @Override
+  public void onNewWaypointsDone() {
+    mapView.postInvalidate();
+  }
+
+  @Override
+  public boolean onMetricUnitsChanged(boolean metric) {
+    // We don't care.
+    return false;
+  }
+
+  @Override
+  public boolean onReportSpeedChanged(boolean reportSpeed) {
+    // We don't care.
+    return false;
+  }
+  
+  /**
+   * Resumes the trackDataHub. Needs to be synchronized because trackDataHub can be
+   * accessed by multiple threads.
+   */
+  private synchronized void resumeTrackDataHub() {
+    trackDataHub = ((TrackDetailActivity) getActivity()).getTrackDataHub();
+    trackDataHub.registerTrackDataListener(this, EnumSet.of(
+        TrackDataType.SELECTED_TRACK,
+        TrackDataType.WAYPOINTS_TABLE,
+        TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE,
+        TrackDataType.LOCATION,
+        TrackDataType.HEADING));
+  }
+  
+  /**
+   * Pauses the trackDataHub. Needs to be synchronized because trackDataHub can be
+   * accessed by multiple threads. 
+   */
+  private synchronized void pauseTrackDataHub() {
+    trackDataHub.unregisterTrackDataListener(this);
+    trackDataHub = null;
+  }
+
+  /**
+   * Updates the trackDataHub. Needs to be synchronized because trackDataHub can be
+   * accessed by multiple threads. 
+   */
+  private synchronized void updateTrackDataHub() {
+    if (trackDataHub != null) {
+      trackDataHub.forceUpdateLocation();
+    }
+  }
+  
+  /**
+   * Updates the map by either zooming to the requested marker or showing the track.
+   *
+   * @param track the track
+   */
+  private void updateMap(Track track) {
+    if (track.getId() == markerTrackId) {
+      // Show the marker
+      showMarker(markerId);
+
+      markerTrackId = -1L;
+      markerId = -1L;
+    } else {
+      // Show the track
+      showTrack(track);
+    }
+  }
+
+  /**
+   * Returns true if the location is visible.
+   *
+   * @param location the location
+   */
+  private boolean isVisible(Location location) {
+    if (location == null || mapView == null) {
+      return false;
+    }
+    GeoPoint mapCenter = mapView.getMapCenter();
+    int latitudeSpan = mapView.getLatitudeSpan();
+    int longitudeSpan = mapView.getLongitudeSpan();
+  
+    /*
+     * The bottom of the mapView is obscured by the zoom controls, subtract its
+     * height from the visible area.
+     */
+    GeoPoint zoomControlBottom = mapView.getProjection().fromPixels(0, mapView.getHeight());
+    GeoPoint zoomControlTop = mapView.getProjection().fromPixels(
+        0, mapView.getHeight() - mapView.getZoomButtonsController().getZoomControls().getHeight());
+    int zoomControlMargin = Math.abs(zoomControlTop.getLatitudeE6()
+        - zoomControlBottom.getLatitudeE6());
+    GeoRect geoRect = new GeoRect(mapCenter, latitudeSpan, longitudeSpan);
+    geoRect.top += zoomControlMargin;
+  
+    GeoPoint geoPoint = LocationUtils.getGeoPoint(location);
+    return geoRect.contains(geoPoint);
+  }
+
+  /**
+   * Updates the current location and centers it if necessary.
+   */
+  private void updateCurrentLocation() {
+    if (mapOverlay == null || mapView == null) {
+      return;
+    }
+
+    mapOverlay.setMyLocation(currentLocation);
+    mapView.postInvalidate();
+
+    if (currentLocation != null && keepMyLocationVisible && !isVisible(currentLocation)) {
+      GeoPoint geoPoint = LocationUtils.getGeoPoint(currentLocation);
+      MapController mapController = mapView.getController();
+      mapController.animateTo(geoPoint);
+      if (zoomToMyLocation) {
+        // Only zoom in the first time we show the location.
+        zoomToMyLocation = false;
+        if (mapView.getZoomLevel() < mapView.getMaxZoomLevel()) {
+          mapController.setZoom(mapView.getMaxZoomLevel());
+        }
+      }
+    }
+  }
+
+  /**
+   * Shows the track.
+   *
+   * @param track the track
+   */
+  private void showTrack(Track track) {
+    if (mapView == null || track == null || track.getNumberOfPoints() < 2) {
+      return;
+    }
+
+    TripStatistics tripStatistics = track.getTripStatistics();
+    int bottom = tripStatistics.getBottom();
+    int left = tripStatistics.getLeft();
+    int latitudeSpanE6 = tripStatistics.getTop() - bottom;
+    int longitudeSpanE6 = tripStatistics.getRight() - left;
+    if (latitudeSpanE6 > 0 && latitudeSpanE6 < 180E6 && longitudeSpanE6 > 0
+        && longitudeSpanE6 < 360E6) {
+      keepMyLocationVisible = false;
+      GeoPoint center = new GeoPoint(bottom + latitudeSpanE6 / 2, left + longitudeSpanE6 / 2);
+      if (LocationUtils.isValidGeoPoint(center)) {
+        mapView.getController().setCenter(center);
+        mapView.getController().zoomToSpan(latitudeSpanE6, longitudeSpanE6);
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/StatsFragment.java

@@ -0,0 +1,290 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.TrackDetailActivity;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.TrackDataHub;
+import com.google.android.apps.mytracks.content.TrackDataListener;
+import com.google.android.apps.mytracks.content.TrackDataType;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.StatsUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.location.Location;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.EnumSet;
+
+/**
+ * A fragment to display track statistics to the user.
+ *
+ * @author Sandor Dornbush
+ * @author Rodrigo Damazio
+ */
+public class StatsFragment extends Fragment implements TrackDataListener {
+
+  public static final String STATS_FRAGMENT_TAG = "statsFragment";
+  
+  private static final String TAG = StatsFragment.class.getSimpleName();
+
+  private TrackDataHub trackDataHub;
+  private UiUpdateThread uiUpdateThread;
+
+  // The start time of the current track.
+  private long startTime = -1L;
+
+  private Location lastLocation = null;
+  private TripStatistics lastTripStatistics = null;
+  
+  // A runnable to update the total time field.
+  private final Runnable updateTotalTime = new Runnable() {
+    public void run() {
+      if (isSelectedTrackRecording()) {
+        StatsUtils.setTotalTimeValue(getActivity(), System.currentTimeMillis() - startTime);
+      }
+    }
+  };
+
+  /**
+   * A thread that updates the total time field every second.
+   */
+  private class UiUpdateThread extends Thread {
+    @Override
+    public void run() {
+      Log.d(TAG, "UI update thread started");
+      while (PreferencesUtils.getLong(getActivity(), R.string.recording_track_id_key)
+          != PreferencesUtils.RECORDING_TRACK_ID_DEFAULT) {
+        getActivity().runOnUiThread(updateTotalTime);
+        try {
+          Thread.sleep(1000L);
+        } catch (InterruptedException e) {
+          Log.d(TAG, "UI update thread caught exception", e);
+          break;
+        }
+      }
+      Log.d(TAG, "UI update thread finished");
+    }
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    return inflater.inflate(R.layout.stats, container, false);
+  }
+
+  @Override
+  public void onActivityCreated(Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    updateUi();
+  }
+
+  @Override
+  public void onResume() {
+    super.onResume();
+    resumeTrackDataHub();
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    pauseTrackDataHub();
+    if (uiUpdateThread != null) {
+      uiUpdateThread.interrupt();
+      uiUpdateThread = null;
+    }
+  }
+
+  @Override
+  public void onLocationStateChanged(LocationState state) {
+    if (isResumed() && (state == LocationState.DISABLED || state == LocationState.NO_FIX)) {
+      getActivity().runOnUiThread(new Runnable() {
+          @Override
+        public void run() {
+          lastLocation = null;
+          StatsUtils.setLocationValues(getActivity(), lastLocation, true);
+        }
+      });
+    }
+  }
+
+  @Override
+  public void onLocationChanged(final Location location) {
+    if (isResumed() && isSelectedTrackRecording()) {
+      getActivity().runOnUiThread(new Runnable() {
+        @Override
+        public void run() {
+          lastLocation = location;
+          StatsUtils.setLocationValues(getActivity(), lastLocation, true);
+        }
+      });
+    }
+  }
+
+  @Override
+  public void onHeadingChanged(double heading) {
+    // We don't care.
+  }
+
+  @Override
+  public void onSelectedTrackChanged(Track track, boolean isRecording) {
+    if (isResumed()) {
+      if (uiUpdateThread == null && isRecording) {
+        uiUpdateThread = new UiUpdateThread();
+        uiUpdateThread.start();
+      } else if (uiUpdateThread != null && !isRecording) {
+        uiUpdateThread.interrupt();
+        uiUpdateThread = null;
+      }
+    }
+  }
+
+  @Override
+  public void onTrackUpdated(final Track track) {
+    if (isResumed()) {
+      getActivity().runOnUiThread(new Runnable() {
+        @Override
+        public void run() {
+          if (track == null || track.getTripStatistics() == null) {
+            lastLocation = null;
+            lastTripStatistics = null;
+            updateUi();
+            return;
+          }
+          lastTripStatistics = track.getTripStatistics();
+          
+          startTime = track.getTripStatistics().getStartTime();
+          if (!isSelectedTrackRecording()) {
+            lastLocation = null;
+          }
+          updateUi();
+        }
+      });
+    }
+  }
+
+  @Override
+  public void clearTrackPoints() {
+    // We don't care.
+  }
+
+  @Override
+  public void onSampledInTrackPoint(Location loc) {
+    // We don't care.
+  }
+
+  @Override
+  public void onSampledOutTrackPoint(Location loc) {
+    // We don't care.
+  }
+
+  @Override
+  public void onSegmentSplit() {
+    // We don't care.
+  }
+
+  @Override
+  public void onNewTrackPointsDone() {
+    // We don't care.
+  }
+
+  @Override
+  public void clearWaypoints() {
+    // We don't care.
+  }
+
+  @Override
+  public void onNewWaypoint(Waypoint wpt) {
+    // We don't care.
+  }
+
+  @Override
+  public void onNewWaypointsDone() {
+    // We don't care.
+  }
+
+  @Override
+  public boolean onMetricUnitsChanged(final boolean metric) {
+    if (isResumed()) {
+      getActivity().runOnUiThread(new Runnable() {
+        @Override
+        public void run() {
+          updateUi();
+        }
+      });
+    }
+    return true;
+  }
+
+  @Override
+  public boolean onReportSpeedChanged(final boolean speed) {
+    if (isResumed()) {
+      getActivity().runOnUiThread(new Runnable() {
+          @Override
+        public void run() {
+          updateUi();
+        }
+      });
+    }
+    return true;
+  }
+
+  /**
+   * Resumes the trackDataHub. Needs to be synchronized because trackDataHub can
+   * be accessed by multiple threads.
+   */
+  private synchronized void resumeTrackDataHub() {
+    trackDataHub = ((TrackDetailActivity) getActivity()).getTrackDataHub();
+    trackDataHub.registerTrackDataListener(this, EnumSet.of(
+        TrackDataType.SELECTED_TRACK,
+        TrackDataType.TRACKS_TABLE,
+        TrackDataType.LOCATION,
+        TrackDataType.PREFERENCE));
+  }
+
+  /**
+   * Pauses the trackDataHub. Needs to be synchronized because trackDataHub can
+   * be accessed by multiple threads.
+   */
+  private synchronized void pauseTrackDataHub() {
+    trackDataHub.unregisterTrackDataListener(this);
+    trackDataHub = null;
+  }
+
+  /**
+   * Returns true if the selected track is recording. Needs to be synchronized
+   * because trackDataHub can be accessed by multiple threads.
+   */
+  private synchronized boolean isSelectedTrackRecording() {
+    return trackDataHub != null && trackDataHub.isSelectedTrackRecording();
+  }
+
+  /**
+   * Updates the UI.
+   */
+  private void updateUi() {
+    StatsUtils.setTripStatisticsValues(getActivity(), lastTripStatistics);
+    StatsUtils.setLocationValues(getActivity(), lastLocation, true);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/fragments/WelcomeDialogFragment.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.TrackListActivity;
+import com.google.android.apps.mytracks.util.EulaUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+
+/**
+ * A DialogFrament to show the welcome info.
+ * 
+ * @author Jimmy Shih
+ */
+public class WelcomeDialogFragment extends DialogFragment {
+
+  public static final String WELCOME_DIALOG_TAG = "welcomeDialog";
+
+  @Override
+  public void onCancel(DialogInterface arg0) {
+    onDone();
+  }
+  
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    return new AlertDialog.Builder(getActivity())
+        .setPositiveButton(R.string.generic_ok, new DialogInterface.OnClickListener() {
+          @Override
+          public void onClick(DialogInterface dialog, int which) {
+            onDone();
+          }
+        })
+        .setTitle(R.string.welcome_title)
+        .setMessage(R.string.welcome_message)
+        .create();
+  }
+
+  private void onDone() {
+    EulaUtils.setShowWelcome(getActivity());
+    TrackListActivity trackListActivity = (TrackListActivity) getActivity();
+    trackListActivity.showStartupDialogs();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/Api8BackupPreferencesListener.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.backup;
+
+import android.annotation.TargetApi;
+import android.app.backup.BackupManager;
+import android.content.Context;
+import android.content.SharedPreferences;
+
+/**
+ * Implementation of {@link BackupPreferencesListener} that calls the
+ * {@link BackupManager}. <br>
+ * For API Level 8 or higher.
+ *
+ * @author Jimmy Shih
+ */
+@TargetApi(8)
+public class Api8BackupPreferencesListener implements BackupPreferencesListener {
+
+  private final BackupManager backupManager;
+
+  public Api8BackupPreferencesListener(Context context) {
+    this.backupManager = new BackupManager(context);
+  }
+
+  @Override
+  public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+    backupManager.dataChanged();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/BackupActivity.java

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.widget.Toast;
+
+/**
+ * Activity to backup data to the SD card.
+ * 
+ * @author Jimmy Shih
+ */
+public class BackupActivity extends Activity {
+
+  private static final int DIALOG_PROGRESS_ID = 0;
+
+  private BackupAsyncTask backupAsyncTask;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    Object retained = getLastNonConfigurationInstance();
+    if (retained instanceof BackupAsyncTask) {
+      backupAsyncTask = (BackupAsyncTask) retained;
+      backupAsyncTask.setActivity(this);
+    } else {
+      backupAsyncTask = new BackupAsyncTask(this);
+      backupAsyncTask.execute();
+    }
+  }
+
+  @Override
+  public Object onRetainNonConfigurationInstance() {
+    backupAsyncTask.setActivity(null);
+    return backupAsyncTask;
+  }
+
+  @Override
+  protected Dialog onCreateDialog(int id) {
+    if (id != DIALOG_PROGRESS_ID) {
+      return null;
+    }
+    return DialogUtils.createSpinnerProgressDialog(
+        this, R.string.settings_backup_now_progress_message, new DialogInterface.OnCancelListener() {
+          @Override
+          public void onCancel(DialogInterface dialog) {
+            finish();
+          }
+        });
+  }
+
+  /**
+   * Invokes when the associated AsyncTask completes.
+   *
+   * @param success true if the AsyncTask is successful
+   * @param messageId message id to display to user
+   */
+  public void onAsyncTaskCompleted(boolean success, int messageId) {
+    removeDialog(DIALOG_PROGRESS_ID);
+    Toast.makeText(this, messageId, success ? Toast.LENGTH_SHORT : Toast.LENGTH_LONG).show();
+    finish();
+  }
+
+  /**
+   * Shows the progress dialog.
+   */
+  public void showProgressDialog() {
+    showDialog(DIALOG_PROGRESS_ID);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/BackupAsyncTask.java

@@ -0,0 +1,111 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.apps.mytracks.util.FileUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.os.AsyncTask;
+import android.util.Log;
+
+import java.io.IOException;
+
+/**
+ * AsyncTask to backup data to the SD card.
+ *
+ * @author Jimmy Shih
+ */
+public class BackupAsyncTask extends AsyncTask<Void, Integer, Boolean> {
+
+  private static final String TAG = BackupAsyncTask.class.getSimpleName();
+
+  private BackupActivity backupActivity;
+  private final ExternalFileBackup externalFileBackup;
+
+  // true if the AsyncTask result is success
+  private boolean success;
+
+  // true if the AsyncTask has completed
+  private boolean completed;
+
+  // message id to return to the activity
+  private int messageId;
+
+  /**
+   * Creates an AsyncTask.
+   *
+   * @param backupActivity the activity currently associated with this
+   *          AsyncTask
+   */
+  public BackupAsyncTask(BackupActivity backupActivity) {
+    this.backupActivity = backupActivity;
+    this.externalFileBackup = new ExternalFileBackup(backupActivity);
+    success = false;
+    completed = false;
+    messageId = R.string.sd_card_save_error;
+  }
+
+  /**
+   * Sets the current {@link BackupActivity} associated with this AyncTask.
+   *
+   * @param activity the current {@link BackupActivity}, can be null
+   */
+  public void setActivity(BackupActivity activity) {
+    this.backupActivity = activity;
+    if (completed && backupActivity != null) {
+      backupActivity.onAsyncTaskCompleted(success, messageId);
+    }
+  }
+
+  @Override
+  protected void onPreExecute() {
+    if (backupActivity != null) {
+      backupActivity.showProgressDialog();
+    }
+  }
+
+  @Override
+  protected Boolean doInBackground(Void... params) {
+    if (!FileUtils.isSdCardAvailable()) {
+      messageId = R.string.sd_card_error_no_storage;
+      return false;
+    }
+
+    if (!externalFileBackup.isBackupsDirectoryAvailable(true)) {
+      messageId = R.string.sd_card_save_error_create_dir;
+      return false;
+    }
+
+    try {
+      externalFileBackup.writeToDefaultFile();
+      messageId = R.string.sd_card_save_success;
+      return true;
+    } catch (IOException e) {
+      Log.d(TAG, "IO exception", e);
+      return false;
+    }
+  }
+
+  @Override
+  protected void onPostExecute(Boolean result) {
+    success = result;
+    completed = true;
+    if (backupActivity != null) {
+      backupActivity.onAsyncTaskCompleted(success, messageId);
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/BackupPreferencesListener.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.backup;
+
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+
+/**
+ * Shared preferences listener which notifies the backup system about new data
+ * being available for backup.
+ *
+ * @author Rodrigo Damazio
+ */
+public interface BackupPreferencesListener extends OnSharedPreferenceChangeListener {
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/DatabaseDumper.java

@@ -0,0 +1,248 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.apps.mytracks.content.ContentTypeIds;
+
+import android.database.Cursor;
+import android.database.MergeCursor;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+/**
+ * Database dumper which is able to write only part of the database
+ * according to some query.
+ *
+ * This dumper is symmetrical to {@link DatabaseImporter}.
+ *
+ * @author Rodrigo Damazio
+ */
+class DatabaseDumper {
+
+  /** The names of the columns being dumped. */
+  private final String[] columnNames;
+  /** The types of the columns being dumped. */
+  private final byte[] columnTypes;
+  /** Whether to output null fields. */
+  private final boolean outputNullFields;
+
+  // Temporary state
+  private int[] columnIndices;
+  private boolean[] hasFields;
+
+  public DatabaseDumper(String[] columnNames, byte[] columnTypes,
+      boolean outputNullFields) {
+    if (columnNames.length != columnTypes.length) {
+      throw new IllegalArgumentException("Names don't match types");
+    }
+
+    this.columnNames = columnNames;
+    this.columnTypes = columnTypes;
+    this.outputNullFields = outputNullFields;
+  }
+
+  /**
+   * Writes the header plus all rows that can be read from the given cursor.
+   * This assumes the cursor will have the same column and column indices on
+   * every row (and thus may not work with a {@link MergeCursor}).
+   */
+  public void writeAllRows(Cursor cursor, DataOutputStream writer)
+      throws IOException {
+    writeHeaders(cursor, cursor.getCount(), writer);
+
+    if (!cursor.moveToFirst()) {
+      return;
+    }
+
+    do {
+      writeOneRow(cursor, writer);
+    } while (cursor.moveToNext());
+  }
+
+  /**
+   * Writes just the headers for the data that will come from the given cursor.
+   * The headers include column information and the number of rows that will be
+   * written.
+   *
+   * @param cursor the cursor to get columns from
+   * @param numRows the number of rows that will be later written
+   * @param writer the output to write to
+   * @throws IOException if there are errors while writing
+   */
+  public void writeHeaders(Cursor cursor, int numRows, DataOutputStream writer)
+      throws IOException {
+    initializeCachedValues(cursor);
+    writeQueryMetadata(numRows, writer);
+  }
+
+  /**
+   * Writes the current row from the cursor. The cursor is not advanced.
+   * This must be called after {@link #writeHeaders}.
+   *
+   * @param cursor the cursor to write data from
+   * @param writer the output to write to
+   * @throws IOException if there are any errors while writing
+   */
+  public void writeOneRow(Cursor cursor, DataOutputStream writer)
+      throws IOException {
+    if (columnIndices == null) {
+      throw new IllegalStateException(
+          "Cannot write rows before writing the header");
+    }
+
+    if (columnIndices.length > Long.SIZE) {
+      throw new IllegalArgumentException("Too many fields");
+    }
+
+    // Build a bitmap of which fields are present
+    long fields = 0;
+    for (int i = 0; i < columnIndices.length; i++) {
+      hasFields[i] = !cursor.isNull(columnIndices[i]);
+      fields |= (hasFields[i] ? 1 : 0) << i;
+    }
+    writer.writeLong(fields);
+
+    // Actually write the present fields
+    for (int i = 0; i < columnIndices.length; i++) {
+      if (hasFields[i]) {
+        writeCell(columnIndices[i], columnTypes[i], cursor, writer);
+      } else if (outputNullFields) {
+        writeDummyCell(columnTypes[i], writer);
+      }
+    }
+  }
+
+  /**
+   * Initializes the column indices and other temporary state for reading from
+   * the given cursor.
+   */
+  private void initializeCachedValues(Cursor cursor) {
+    // These indices are constant for every row (unless we're fed a MergeCursor)
+    if (cursor instanceof MergeCursor) {
+      throw new IllegalArgumentException("Cannot use a MergeCursor");
+    }
+
+    columnIndices = new int[columnNames.length];
+    for (int i = 0; i < columnNames.length; i++) {
+      String columnName = columnNames[i];
+      columnIndices[i] = cursor.getColumnIndexOrThrow(columnName);
+    }
+
+    hasFields = new boolean[columnIndices.length];
+  }
+
+  /**
+   * Writes metadata about the query to be dumped.
+   *
+   * @param numRows the number of rows that will be dumped
+   * @param writer the output to write to
+   * @throws IOException if there are any errors while writing
+   */
+  private void writeQueryMetadata(
+      int numRows, DataOutputStream writer) throws IOException {
+    // Write column data
+    writer.writeInt(columnNames.length);
+    for (int i = 0; i < columnNames.length; i++) {
+      String columnName = columnNames[i];
+      byte columnType = columnTypes[i];
+      writer.writeUTF(columnName);
+      writer.writeByte(columnType);
+    }
+
+    // Write the number of rows
+    writer.writeInt(numRows);
+  }
+
+  /**
+   * Writes a single cell of the database to the output.
+   *
+   * @param columnIdx the column index to read from
+   * @param columnTypeId the type of the column to be read
+   * @param cursor the cursor to read from
+   * @param writer the output to write to
+   * @throws IOException if there are any errors while writing
+   */
+  private void writeCell(
+      int columnIdx, byte columnTypeId, Cursor cursor, DataOutputStream writer)
+      throws IOException {
+    switch (columnTypeId) {
+      case ContentTypeIds.LONG_TYPE_ID:
+        writer.writeLong(cursor.getLong(columnIdx));
+        return;
+      case ContentTypeIds.DOUBLE_TYPE_ID:
+        writer.writeDouble(cursor.getDouble(columnIdx));
+        return;
+      case ContentTypeIds.FLOAT_TYPE_ID:
+        writer.writeFloat(cursor.getFloat(columnIdx));
+        return;
+      case ContentTypeIds.BOOLEAN_TYPE_ID:
+        writer.writeBoolean(cursor.getInt(columnIdx) != 0);
+        return;
+      case ContentTypeIds.INT_TYPE_ID:
+        writer.writeInt(cursor.getInt(columnIdx));
+        return;
+      case ContentTypeIds.STRING_TYPE_ID:
+        writer.writeUTF(cursor.getString(columnIdx));
+        return;
+      case ContentTypeIds.BLOB_TYPE_ID: {
+        byte[] blob = cursor.getBlob(columnIdx);
+        writer.writeInt(blob.length);
+        writer.write(blob);
+        return;
+      }
+      default:
+        throw new IllegalArgumentException(
+            "Type " + columnTypeId + " not supported");
+    }
+  }
+
+  /**
+   * Writes a dummy cell value to the output.
+   *
+   * @param columnTypeId the type of the value to write
+   * @throws IOException if there are any errors while writing
+   */
+  private void writeDummyCell(byte columnTypeId, DataOutputStream writer)
+      throws IOException {
+    switch (columnTypeId) {
+      case ContentTypeIds.LONG_TYPE_ID:
+        writer.writeLong(0L);
+        return;
+      case ContentTypeIds.DOUBLE_TYPE_ID:
+        writer.writeDouble(0.0);
+        return;
+      case ContentTypeIds.FLOAT_TYPE_ID:
+        writer.writeFloat(0.0f);
+        return;
+      case ContentTypeIds.BOOLEAN_TYPE_ID:
+        writer.writeBoolean(false);
+        return;
+      case ContentTypeIds.INT_TYPE_ID:
+        writer.writeInt(0);
+        return;
+      case ContentTypeIds.STRING_TYPE_ID:
+        writer.writeUTF("");
+        return;
+      case ContentTypeIds.BLOB_TYPE_ID:
+        writer.writeInt(0);
+        return;
+      default:
+        throw new IllegalArgumentException(
+            "Type " + columnTypeId + " not supported");
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/DatabaseImporter.java

@@ -0,0 +1,198 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.apps.mytracks.content.ContentTypeIds;
+
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.net.Uri;
+
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.util.Locale;
+
+/**
+ * Database importer which reads values written by {@link DatabaseDumper}.
+ *
+ * @author Rodrigo Damazio
+ */
+public class DatabaseImporter {
+
+  /** Maximum number of entries in a bulk insertion */
+  private static final int DEFAULT_BULK_SIZE = 1024;
+
+  private final Uri destinationUri;
+  private final ContentResolver resolver;
+  private final boolean readNullFields;
+  private final int bulkSize;
+
+  // Metadata read from the reader
+  private String[] columnNames;
+  private byte[] columnTypes;
+
+  public DatabaseImporter(Uri destinationUri, ContentResolver resolver,
+      boolean readNullFields) {
+    this(destinationUri, resolver, readNullFields, DEFAULT_BULK_SIZE);
+  }
+
+  protected DatabaseImporter(Uri destinationUri, ContentResolver resolver,
+      boolean readNullFields, int bulkSize) {
+    this.destinationUri = destinationUri;
+    this.resolver = resolver;
+    this.readNullFields = readNullFields;
+    this.bulkSize = bulkSize;
+  }
+
+  /**
+   * Reads the header which includes metadata about the table being imported.
+   *
+   * @throws IOException if there are any problems while reading
+   */
+  private void readHeaders(DataInputStream reader) throws IOException {
+    int numColumns = reader.readInt();
+    columnNames = new String[numColumns];
+    columnTypes = new byte[numColumns];
+    for (int i = 0; i < numColumns; i++) {
+      columnNames[i] = reader.readUTF();
+      columnTypes[i] = reader.readByte();
+    }
+  }
+
+  /**
+   * Imports all rows from the reader into the database.
+   * Insertion is done in bulks for efficiency.
+   *
+   * @throws IOException if there are any errors while reading
+   */
+  public void importAllRows(DataInputStream reader) throws IOException {
+    readHeaders(reader);
+
+    ContentValues[] valueBulk = new ContentValues[bulkSize];
+    int numValues = 0;
+
+    int numRows = reader.readInt();
+    int numColumns = columnNames.length;
+
+    // For each row
+    for (int r = 0; r < numRows; r++) {
+      if (valueBulk[numValues] == null) {
+        valueBulk[numValues] = new ContentValues(numColumns);
+      } else {
+        // Reuse values objects
+        valueBulk[numValues].clear();
+      }
+
+      // Read the fields bitmap
+      long fields = reader.readLong();
+      for (int c = 0; c < numColumns; c++) {
+        if ((fields & 1) == 1) {
+          // Field is present, read into values
+          readOneCell(columnNames[c], columnTypes[c], valueBulk[numValues],
+              reader);
+        } else if (readNullFields) {
+          // Field not present but still written, read and discard
+          readOneCell(columnNames[c], columnTypes[c], null, reader);
+        }
+
+        fields >>= 1;
+      }
+
+      numValues++;
+
+      // If we have enough values, flush them as a bulk insertion
+      if (numValues >= bulkSize) {
+        doBulkInsert(valueBulk);
+        numValues = 0;
+      }
+    }
+
+    // Do a final bulk insert with the leftovers
+    if (numValues > 0) {
+      ContentValues[] leftovers = new ContentValues[numValues];
+      System.arraycopy(valueBulk, 0, leftovers, 0, numValues);
+      doBulkInsert(leftovers);
+    }
+  }
+
+  protected void doBulkInsert(ContentValues[] values) {
+    resolver.bulkInsert(destinationUri, values);
+  }
+
+  /**
+   * Reads a single cell from the reader.
+   *
+   * @param name the name of the column to be read
+   * @param typeId the type ID of the column to be read
+   * @param values the {@link ContentValues} object to put the read cell value
+   *        in - if null, the value is just discarded
+   * @throws IOException if there are any problems while reading
+   */
+  private void readOneCell(String name, byte typeId, ContentValues values,
+      DataInputStream reader) throws IOException {
+    switch (typeId) {
+      case ContentTypeIds.BOOLEAN_TYPE_ID: {
+        boolean value = reader.readBoolean();
+        if (values != null) { values.put(name, value); }
+        return;
+      }
+      case ContentTypeIds.LONG_TYPE_ID: {
+        long value = reader.readLong();
+        if (values != null) { values.put(name, value); }
+        return;
+      }
+      case ContentTypeIds.DOUBLE_TYPE_ID: {
+        double value = reader.readDouble();
+        if (values != null) { values.put(name, value); }
+        return;
+      }
+      case ContentTypeIds.FLOAT_TYPE_ID: {
+        Float value = reader.readFloat();
+        if (values != null) { values.put(name, value); }
+        return;
+      }
+      case ContentTypeIds.INT_TYPE_ID: {
+        int value = reader.readInt();
+        if (values != null) { values.put(name, value); }
+        return;
+      }
+      case ContentTypeIds.STRING_TYPE_ID: {
+        String value = reader.readUTF();
+        if (values != null) { values.put(name, value); }
+        return;
+      }
+      case ContentTypeIds.BLOB_TYPE_ID: {
+        int blobLength = reader.readInt();
+        if (blobLength != 0) {
+          byte[] blob = new byte[blobLength];
+          int readBytes = reader.read(blob, 0, blobLength);
+          if (readBytes != blobLength) {
+            throw new IOException(String.format(Locale.US,
+                "Short read on column %s; expected %d bytes, read %d",
+                name, blobLength, readBytes));
+          }
+          
+          if (values != null) {
+            values.put(name, blob);
+          }
+        }
+        return;
+      }
+      default:
+        throw new IOException("Read unknown type " + typeId);
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/ExternalFileBackup.java

@@ -0,0 +1,264 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.backup;
+
+import static com.google.android.apps.mytracks.Constants.TAG;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.content.TrackPointsColumns;
+import com.google.android.apps.mytracks.content.TracksColumns;
+import com.google.android.apps.mytracks.content.WaypointsColumns;
+import com.google.android.apps.mytracks.util.FileUtils;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.database.Cursor;
+import android.util.Log;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.TimeZone;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipOutputStream;
+
+/**
+ * Handler for writing or reading single-file backups.
+ *
+ * @author Rodrigo Damazio
+ */
+class ExternalFileBackup {
+  // Filename format - in UTC
+  private static final SimpleDateFormat BACKUP_FILENAME_FORMAT =
+      new SimpleDateFormat("'backup-'yyyy-MM-dd_HH-mm-ss'.zip'");
+  static {
+    BACKUP_FILENAME_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
+  }
+
+  private static final String BACKUPS_SUBDIR = "backups";
+  private static final int BACKUP_FORMAT_VERSION = 1;
+  private static final String ZIP_ENTRY_NAME =
+      "backup.mytracks.v" + BACKUP_FORMAT_VERSION;
+  private static final int COMPRESSION_LEVEL = 8;
+
+  private final Context context;
+
+  public ExternalFileBackup(Context context) {
+    this.context = context;
+  }
+
+  /**
+   * Returns whether the backups directory is (or can be made) available.
+   *
+   * @param create whether to try creating the directory if it doesn't exist
+   */
+  public boolean isBackupsDirectoryAvailable(boolean create) {
+    return getBackupsDirectory(create) != null;
+  }
+
+  /**
+   * Returns the backup directory, or null if not available.
+   *
+   * @param create whether to try creating the directory if it doesn't exist
+   */
+  private File getBackupsDirectory(boolean create) {
+    String dirName = FileUtils.buildExternalDirectoryPath(BACKUPS_SUBDIR);
+    final File dir = new File(dirName);
+    Log.d(Constants.TAG, "Dir: " + dir.getAbsolutePath());
+    if (create) {
+      // Try to create - if that fails, return null
+      return FileUtils.ensureDirectoryExists(dir) ? dir : null;
+    } else {
+      // Return it if it already exists, otherwise return null
+      return dir.isDirectory() ? dir : null;
+    }
+  }
+
+  /**
+   * Returns a list of available backups to be restored.
+   */
+  public Date[] getAvailableBackups() {
+    File dir = getBackupsDirectory(false);
+    if (dir == null) { return null; }
+    String[] fileNames = dir.list();
+
+    List<Date> backupDates = new ArrayList<Date>(fileNames.length);
+    for (int i = 0; i < fileNames.length; i++) {
+      String fileName = fileNames[i];
+      try {
+        backupDates.add(BACKUP_FILENAME_FORMAT.parse(fileName));
+      } catch (ParseException e) {
+        // Not a backup file, ignore
+      }
+    }
+
+    return backupDates.toArray(new Date[backupDates.size()]);
+  }
+
+  /**
+   * Writes the backup to the default file.
+   */
+  public void writeToDefaultFile() throws IOException {
+    writeToFile(getFileForDate(new Date()));
+  }
+
+  /**
+   * Restores the backup from the given date.
+   */
+  public void restoreFromDate(Date when) throws IOException {
+    restoreFromFile(getFileForDate(when));
+  }
+
+  /**
+   * Produces the proper file descriptor for the given backup date.
+   */
+  private File getFileForDate(Date when) {
+    File dir = getBackupsDirectory(false);
+    String fileName = BACKUP_FILENAME_FORMAT.format(when);
+    File file = new File(dir, fileName);
+    return file;
+  }
+
+  /**
+   * Synchronously writes a backup to the given file.
+   */
+  private void writeToFile(File outputFile) throws IOException {
+    Log.d(Constants.TAG,
+        "Writing backup to file " + outputFile.getAbsolutePath());
+
+    // Create all the auxiliary classes that will do the writing
+    PreferenceBackupHelper preferencesHelper = new PreferenceBackupHelper();
+    DatabaseDumper trackDumper = new DatabaseDumper(
+        TracksColumns.COLUMNS,
+        TracksColumns.COLUMN_TYPES,
+        false);
+    DatabaseDumper waypointDumper = new DatabaseDumper(
+        WaypointsColumns.COLUMNS,
+        WaypointsColumns.COLUMN_TYPES,
+        false);
+    DatabaseDumper pointDumper = new DatabaseDumper(
+        TrackPointsColumns.COLUMNS,
+        TrackPointsColumns.COLUMN_TYPES,
+        false);
+
+    // Open the target for writing
+    FileOutputStream outputStream = new FileOutputStream(outputFile);
+    ZipOutputStream compressedStream = new ZipOutputStream(outputStream);
+    compressedStream.setLevel(COMPRESSION_LEVEL);
+    compressedStream.putNextEntry(new ZipEntry(ZIP_ENTRY_NAME));
+    DataOutputStream outWriter = new DataOutputStream(compressedStream);
+
+    try {
+      // Dump the entire contents of each table
+      ContentResolver contentResolver = context.getContentResolver();
+      Cursor tracksCursor = contentResolver.query(
+          TracksColumns.CONTENT_URI, null, null, null, null);
+      try {
+        trackDumper.writeAllRows(tracksCursor, outWriter);
+      } finally {
+        tracksCursor.close();
+      }
+
+      Cursor waypointsCursor = contentResolver.query(
+          WaypointsColumns.CONTENT_URI, null, null, null, null);
+      try {
+        waypointDumper.writeAllRows(waypointsCursor, outWriter);
+      } finally {
+        waypointsCursor.close();
+      }
+
+      Cursor pointsCursor = contentResolver.query(
+          TrackPointsColumns.CONTENT_URI, null, null, null, null);
+      try {
+        pointDumper.writeAllRows(pointsCursor, outWriter);
+      } finally {
+        pointsCursor.close();
+      }
+
+      // Dump preferences
+      SharedPreferences preferences = context.getSharedPreferences(
+          Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+      preferencesHelper.exportPreferences(preferences, outWriter);
+    } catch (IOException e) {
+      // We tried to delete the partially created file, but do nothing
+      // if that also fails.
+      if (!outputFile.delete()) {
+        Log.w(TAG, "Failed to delete file " + outputFile.getAbsolutePath());
+      }
+
+      throw e;
+    } finally {
+      compressedStream.closeEntry();
+      compressedStream.close();
+    }
+  }
+
+  /**
+   * Synchronously restores the backup from the given file.
+   */
+  private void restoreFromFile(File inputFile) throws IOException {
+    Log.d(Constants.TAG,
+        "Restoring from file " + inputFile.getAbsolutePath());
+
+    PreferenceBackupHelper preferencesHelper = new PreferenceBackupHelper();
+    ContentResolver resolver = context.getContentResolver();
+    DatabaseImporter trackImporter =
+        new DatabaseImporter(TracksColumns.CONTENT_URI, resolver, false);
+    DatabaseImporter waypointImporter =
+        new DatabaseImporter(WaypointsColumns.CONTENT_URI, resolver, false);
+    DatabaseImporter pointImporter =
+        new DatabaseImporter(TrackPointsColumns.CONTENT_URI, resolver, false);
+
+    ZipFile zipFile = new ZipFile(inputFile, ZipFile.OPEN_READ);
+    ZipEntry zipEntry = zipFile.getEntry(ZIP_ENTRY_NAME);
+    if (zipEntry == null) {
+      throw new IOException("Invalid backup ZIP file");
+    }
+
+    InputStream compressedStream = zipFile.getInputStream(zipEntry);
+    DataInputStream reader = new DataInputStream(compressedStream);
+
+    try {
+      // Delete all previous contents of the tables and preferences.
+      resolver.delete(TracksColumns.CONTENT_URI, null, null);
+      resolver.delete(TrackPointsColumns.CONTENT_URI, null, null);
+      resolver.delete(WaypointsColumns.CONTENT_URI, null, null);
+
+      // Import the new contents of each table
+      trackImporter.importAllRows(reader);
+      waypointImporter.importAllRows(reader);
+      pointImporter.importAllRows(reader);
+
+      // Restore preferences
+      SharedPreferences preferences = context.getSharedPreferences(
+          Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+      preferencesHelper.importPreferences(reader, preferences);
+    } finally {
+      compressedStream.close();
+      zipFile.close();
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/MyTracksBackupAgent.java

@@ -0,0 +1,101 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.apps.mytracks.Constants;
+
+import android.annotation.TargetApi;
+import android.app.backup.BackupAgent;
+import android.app.backup.BackupDataInput;
+import android.app.backup.BackupDataOutput;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.ParcelFileDescriptor;
+import android.util.Log;
+
+import java.io.IOException;
+
+/**
+ * Backup agent used to backup and restore all preferences.
+ * We use a regular {@link BackupAgent} instead of the convenient helpers in
+ * order to be future-proof (assuming we'll want to back up tracks later).
+ * 
+ * @author Rodrigo Damazio
+ */
+@TargetApi(8)
+public class MyTracksBackupAgent extends BackupAgent {
+  private static final String PREFERENCES_ENTITY = "prefs";
+
+  @Override
+  public void onBackup(ParcelFileDescriptor oldState, BackupDataOutput data,
+      ParcelFileDescriptor newState) throws IOException {
+    Log.i(Constants.TAG, "Performing backup");
+    SharedPreferences preferences = this.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+
+    backupPreferences(data, preferences);
+    Log.i(Constants.TAG, "Backup complete");
+  }
+
+  private void backupPreferences(BackupDataOutput data,
+      SharedPreferences preferences) throws IOException {
+    PreferenceBackupHelper preferenceDumper = createPreferenceBackupHelper();
+    byte[] dumpedContents = preferenceDumper.exportPreferences(preferences);
+    data.writeEntityHeader(PREFERENCES_ENTITY, dumpedContents.length);
+    data.writeEntityData(dumpedContents, dumpedContents.length);
+  }
+
+  protected PreferenceBackupHelper createPreferenceBackupHelper() {
+    return new PreferenceBackupHelper();
+  }
+
+  @Override
+  public void onRestore(BackupDataInput data, int appVersionCode,
+      ParcelFileDescriptor newState) throws IOException {
+    Log.i(Constants.TAG, "Restoring from backup");
+    while (data.readNextHeader()) {
+      String key = data.getKey();
+      Log.d(Constants.TAG, "Restoring entity " + key);
+      if (key.equals(PREFERENCES_ENTITY)) {
+        restorePreferences(data);
+      } else {
+        Log.e(Constants.TAG, "Found unknown backup entity: " + key);
+        data.skipEntityData();
+      }
+    }
+    Log.i(Constants.TAG, "Done restoring from backup");
+  }
+
+  /**
+   * Restores all preferences from the backup.
+   * 
+   * @param data the backup data to read from
+   * @throws IOException if there are any errors while reading
+   */
+  private void restorePreferences(BackupDataInput data) throws IOException {
+    int dataSize = data.getDataSize();
+    byte[] dataBuffer = new byte[dataSize];
+    int read = data.readEntityData(dataBuffer, 0, dataSize);
+    if (read != dataSize) {
+      throw new IOException("Failed to read all the preferences data");
+    }
+
+    SharedPreferences preferences = this.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    PreferenceBackupHelper importer = createPreferenceBackupHelper();
+    importer.importPreferences(dataBuffer, preferences);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/PreferenceBackupHelper.java

@@ -0,0 +1,174 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.apps.mytracks.content.ContentTypeIds;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.Map;
+
+/**
+ * Helper for backing up and restoring shared preferences.
+ *
+ * @author Rodrigo Damazio
+ */
+class PreferenceBackupHelper {
+
+  private static final int BUFFER_SIZE = 2048;
+
+  /**
+   * Exports all shared preferences from the given object as a byte array.
+   *
+   * @param preferences the preferences to export
+   * @return the corresponding byte array
+   * @throws IOException if there are any errors while writing to the byte array
+   */
+  public byte[] exportPreferences(SharedPreferences preferences)
+      throws IOException {
+    ByteArrayOutputStream bufStream = new ByteArrayOutputStream(BUFFER_SIZE);
+    DataOutputStream outWriter = new DataOutputStream(bufStream);
+    exportPreferences(preferences, outWriter);
+
+    return bufStream.toByteArray();
+  }
+
+  /**
+   * Exports all shared preferences from the given object into the given output
+   * stream.
+   *
+   * @param preferences the preferences to export
+   * @param outWriter the stream to write them to
+   * @throws IOException if there are any errors while writing the output
+   */
+  public void exportPreferences(
+      SharedPreferences preferences,
+      DataOutputStream outWriter) throws IOException {
+    Map<String, ?> values = preferences.getAll();
+
+    outWriter.writeInt(values.size());
+    for (Map.Entry<String, ?> entry : values.entrySet()) {
+      writePreference(entry.getKey(), entry.getValue(), outWriter);
+    }
+    outWriter.flush();
+  }
+
+  /**
+   * Imports all preferences from the given byte array.
+   *
+   * @param data the byte array to read preferences from
+   * @param preferences the shared preferences to edit
+   * @throws IOException if there are any errors while reading
+   */
+  public void importPreferences(byte[] data, SharedPreferences preferences)
+      throws IOException {
+    ByteArrayInputStream bufStream = new ByteArrayInputStream(data);
+    DataInputStream reader = new DataInputStream(bufStream);
+
+    importPreferences(reader, preferences);
+  }
+
+  /**
+   * Imports all preferences from the given stream.
+   *
+   * @param reader the stream to read from
+   * @param preferences the shared preferences to edit
+   * @throws IOException if there are any errors while reading
+   */
+  public void importPreferences(DataInputStream reader,
+      SharedPreferences preferences) throws IOException {
+    Editor editor = preferences.edit();
+    editor.clear();
+
+    int numPreferences = reader.readInt();
+    for (int i = 0; i < numPreferences; i++) {
+      String name = reader.readUTF();
+      byte typeId = reader.readByte();
+      readAndSetPreference(name, typeId, reader, editor);
+    }
+    ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor);
+  }
+
+  /**
+   * Reads a single preference and sets it into the given editor.
+   *
+   * @param name the name of the preference to read
+   * @param typeId the type ID of the preference to read
+   * @param reader the reader to read from
+   * @param editor the editor to set the preference in
+   * @throws IOException if there are errors while reading
+   */
+  private void readAndSetPreference(String name, byte typeId,
+      DataInputStream reader, Editor editor) throws IOException {
+    switch (typeId) {
+      case ContentTypeIds.BOOLEAN_TYPE_ID:
+        editor.putBoolean(name, reader.readBoolean());
+        return;
+      case ContentTypeIds.LONG_TYPE_ID:
+        editor.putLong(name, reader.readLong());
+        return;
+      case ContentTypeIds.FLOAT_TYPE_ID:
+        editor.putFloat(name, reader.readFloat());
+        return;
+      case ContentTypeIds.INT_TYPE_ID:
+        editor.putInt(name, reader.readInt());
+        return;
+      case ContentTypeIds.STRING_TYPE_ID:
+        editor.putString(name, reader.readUTF());
+        return;
+    }
+  }
+
+  /**
+   * Writes a single preference.
+   *
+   * @param name the name of the preference to write
+   * @param value the correctly-typed value of the preference
+   * @param writer the writer to write to
+   * @throws IOException if there are errors while writing
+   */
+  private void writePreference(String name, Object value, DataOutputStream writer)
+      throws IOException {
+    writer.writeUTF(name);
+
+    if (value instanceof Boolean) {
+      writer.writeByte(ContentTypeIds.BOOLEAN_TYPE_ID);
+      writer.writeBoolean((Boolean) value);
+    } else if (value instanceof Integer) {
+      writer.writeByte(ContentTypeIds.INT_TYPE_ID);
+      writer.writeInt((Integer) value);
+    } else if (value instanceof Long) {
+      writer.writeByte(ContentTypeIds.LONG_TYPE_ID);
+      writer.writeLong((Long) value);
+    } else if (value instanceof Float) {
+      writer.writeByte(ContentTypeIds.FLOAT_TYPE_ID);
+      writer.writeFloat((Float) value);
+    } else if (value instanceof String) {
+      writer.writeByte(ContentTypeIds.STRING_TYPE_ID);
+      writer.writeUTF((String) value);
+    } else {
+      throw new IllegalArgumentException(
+          "Type " + value.getClass().getName() + " not supported");
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/RestoreActivity.java

@@ -0,0 +1,107 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.apps.mytracks.TrackListActivity;
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+import android.widget.Toast;
+
+import java.util.Date;
+
+/**
+ * An activity to restore data from the SD card.
+ * 
+ * @author Jimmy Shih
+ */
+public class RestoreActivity extends Activity {
+
+  public static final String EXTRA_DATE = "date";
+  
+  private static final String TAG = RestoreActivity.class.getSimpleName();
+  private static final int DIALOG_PROGRESS_ID = 0;
+  
+  private RestoreAsyncTask restoreAsyncTask;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    Object retained = getLastNonConfigurationInstance();
+    if (retained instanceof RestoreAsyncTask) {
+      restoreAsyncTask = (RestoreAsyncTask) retained;
+      restoreAsyncTask.setActivity(this);
+    } else {
+      long date = getIntent().getLongExtra(EXTRA_DATE, -1L);
+      if (date == -1L) {
+        Log.d(TAG, "Invalid date");
+        finish();
+        return;
+      }
+      restoreAsyncTask = new RestoreAsyncTask(this, new Date(date));
+      restoreAsyncTask.execute();
+    }
+  }
+
+  @Override
+  public Object onRetainNonConfigurationInstance() {
+    restoreAsyncTask.setActivity(null);
+    return restoreAsyncTask;
+  }
+
+  @Override
+  protected Dialog onCreateDialog(int id) {
+    if (id != DIALOG_PROGRESS_ID) {
+      return null;
+    }
+    return DialogUtils.createSpinnerProgressDialog(this,
+        R.string.settings_backup_restore_progress_message, new DialogInterface.OnCancelListener() {
+          @Override
+          public void onCancel(DialogInterface dialog) {
+            finish();
+          }
+        });
+  }
+
+  /**
+   * Invokes when the associated AsyncTask completes.
+   *
+   * @param success true if the AsyncTask is successful
+   * @param messageId message id to display to user
+   */
+  public void onAsyncTaskCompleted(boolean success, int messageId) {
+    removeDialog(DIALOG_PROGRESS_ID);
+    Toast.makeText(this, messageId, success ? Toast.LENGTH_SHORT : Toast.LENGTH_LONG).show();
+    Intent intent = IntentUtils.newIntent(this, TrackListActivity.class);
+    startActivity(intent);
+  }
+
+  /**
+   * Shows the progress dialog.
+   */
+  public void showProgressDialog() {
+    showDialog(DIALOG_PROGRESS_ID);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/RestoreAsyncTask.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.maps.mytracks.R;
+
+import android.os.AsyncTask;
+import android.util.Log;
+
+import java.io.IOException;
+import java.util.Date;
+
+/**
+ * AsyncTask to restore data from the SD card.
+ *
+ * @author Jimmy Shih
+ */
+public class RestoreAsyncTask extends AsyncTask<Void, Integer, Boolean> {
+
+  private static final String TAG = RestoreAsyncTask.class.getSimpleName();
+
+  private RestoreActivity restoreActivity;
+  private final Date date;
+  private final ExternalFileBackup externalFileBackup;
+
+  // true if the AsyncTask result is success
+  private boolean success;
+
+  // true if the AsyncTask has completed
+  private boolean completed;
+
+  // message id to return to the activity
+  private int messageId;
+
+  /**
+   * Creates an AsyncTask.
+   *
+   * @param restoreActivity the activity currently associated with this
+   *          AsyncTask
+   * @param date the date to retore from
+   */
+  public RestoreAsyncTask(RestoreActivity restoreActivity, Date date) {
+    this.restoreActivity = restoreActivity;
+    this.date = date;
+    this.externalFileBackup = new ExternalFileBackup(restoreActivity);
+    success = false;
+    completed = false;
+    messageId = R.string.sd_card_import_error;
+  }
+
+  /**
+   * Sets the current {@link RestoreActivity} associated with this AyncTask.
+   *
+   * @param activity the current {@link RestoreActivity}, can be null
+   */
+  public void setActivity(RestoreActivity activity) {
+    this.restoreActivity = activity;
+    if (completed && restoreActivity != null) {
+      restoreActivity.onAsyncTaskCompleted(success, messageId);
+    }
+  }
+
+  @Override
+  protected void onPreExecute() {
+    if (restoreActivity != null) {
+      restoreActivity.showProgressDialog();
+    }
+  }
+
+  @Override
+  protected Boolean doInBackground(Void... params) {
+    try {
+      externalFileBackup.restoreFromDate(date);
+      messageId = R.string.sd_card_import_success;
+      return true;
+    } catch (IOException e) {
+      Log.d(TAG, "IO exception", e);
+      return false;
+    }
+  }
+
+  @Override
+  protected void onPostExecute(Boolean result) {
+    success = result;
+    completed = true;
+    if (restoreActivity != null) {
+      restoreActivity.onAsyncTaskCompleted(success, messageId);
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/backup/RestoreChooserActivity.java

@@ -0,0 +1,121 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.backup;
+
+import com.google.android.apps.mytracks.util.FileUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.Toast;
+
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.Date;
+
+/**
+ * An activity to choose a date to restore from.
+ *
+ * @author Jimmy Shih
+ */
+public class RestoreChooserActivity extends Activity {
+
+  private static final Comparator<Date> REVERSE_DATE_ORDER = new Comparator<Date>() {
+    @Override
+    public int compare(Date s1, Date s2) {
+      return s2.compareTo(s1);
+    }
+  };
+  private static final int DIALOG_CHOOSER_ID = 0;
+
+  private Date[] backupDates;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    ExternalFileBackup externalFileBackup = new ExternalFileBackup(this);
+
+    // Get the list of existing backups
+    if (!FileUtils.isSdCardAvailable()) {
+      Toast.makeText(this, R.string.sd_card_error_no_storage, Toast.LENGTH_LONG).show();
+      finish();
+      return;
+    }
+
+    if (!externalFileBackup.isBackupsDirectoryAvailable(false)) {
+      Toast.makeText(this, R.string.settings_backup_restore_no_backup, Toast.LENGTH_LONG).show();
+      finish();
+      return;
+    }
+
+    backupDates = externalFileBackup.getAvailableBackups();
+    if (backupDates == null || backupDates.length == 0) {
+      Toast.makeText(this, R.string.settings_backup_restore_no_backup, Toast.LENGTH_LONG).show();
+      finish();
+      return;
+    }
+
+    if (backupDates.length == 1) {
+      Intent intent = IntentUtils.newIntent(this, RestoreActivity.class)
+          .putExtra(RestoreActivity.EXTRA_DATE, backupDates[0].getTime());
+      startActivity(intent);
+      finish();
+      return;
+    }
+
+    Arrays.sort(backupDates, REVERSE_DATE_ORDER);
+    showDialog(DIALOG_CHOOSER_ID);
+  }
+
+  @Override
+  protected Dialog onCreateDialog(int id) {
+    if (id != DIALOG_CHOOSER_ID) {
+      return null;
+    }
+    String items[] = new String[backupDates.length];
+    for (int i = 0; i < backupDates.length; i++) {
+      items[i] = StringUtils.formatDateTime(this, backupDates[i].getTime());
+    }
+    return new AlertDialog.Builder(this)
+        .setCancelable(true)
+        .setItems(items, new DialogInterface.OnClickListener() {
+          @Override
+          public void onClick(DialogInterface dialog, int which) {
+            Intent intent = IntentUtils.newIntent(
+                RestoreChooserActivity.this, RestoreActivity.class)
+                .putExtra(RestoreActivity.EXTRA_DATE, backupDates[which].getTime());
+            startActivity(intent);
+            finish();
+          }
+        })
+        .setOnCancelListener(new DialogInterface.OnCancelListener() {
+          @Override
+          public void onCancel(DialogInterface dialog) {
+            finish();
+          }
+        })
+        .setTitle(R.string.settings_backup_restore_select_title)
+        .create();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/docs/SendDocsActivity.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.docs;
+
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendActivity;
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendAsyncTask;
+import com.google.android.apps.mytracks.io.sendtogoogle.SendRequest;
+import com.google.android.apps.mytracks.io.sendtogoogle.UploadResultActivity;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Intent;
+
+/**
+ * An activity to send a track to Google Docs.
+ *
+ * @author Jimmy Shih
+ */
+public class SendDocsActivity extends AbstractSendActivity {
+
+  @Override
+  protected AbstractSendAsyncTask createAsyncTask() {
+    return new SendDocsAsyncTask(this, sendRequest.getTrackId(), sendRequest.getAccount());
+  }
+
+  @Override
+  protected String getServiceName() {
+    return getString(R.string.send_google_docs);
+  }
+
+  @Override
+  protected void startNextActivity(boolean success, boolean isCancel) {
+    sendRequest.setDocsSuccess(success);
+    Intent intent = IntentUtils.newIntent(this, UploadResultActivity.class)
+        .putExtra(SendRequest.SEND_REQUEST_KEY, sendRequest);
+    startActivity(intent);
+    finish();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/docs/SendDocsAsyncTask.java

@@ -0,0 +1,324 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.docs;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.io.gdata.GDataClientFactory;
+import com.google.android.apps.mytracks.io.gdata.docs.DocumentsClient;
+import com.google.android.apps.mytracks.io.gdata.docs.SpreadsheetsClient;
+import com.google.android.apps.mytracks.io.gdata.docs.XmlDocsGDataParserFactory;
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendAsyncTask;
+import com.google.android.common.gdata.AndroidXmlParserFactory;
+import com.google.android.maps.mytracks.R;
+import com.google.wireless.gdata.client.GDataClient;
+import com.google.wireless.gdata.client.HttpException;
+import com.google.wireless.gdata.parser.ParseException;
+import com.google.wireless.gdata2.client.AuthenticationException;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorException;
+import android.accounts.OperationCanceledException;
+import android.content.Context;
+import android.util.Log;
+
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+
+/**
+ * AsyncTask to send a track to Google Docs.
+ *
+ * @author Jimmy Shih
+ */
+public class SendDocsAsyncTask extends AbstractSendAsyncTask {
+  private static final int PROGRESS_GET_SPREADSHEET_ID = 0;
+  private static final int PROGRESS_CREATE_SPREADSHEET = 25;
+  private static final int PROGRESS_GET_WORKSHEET_ID = 50;
+  private static final int PROGRESS_ADD_TRACK_INFO = 75;
+  private static final int PROGRESS_COMPLETE = 100;
+
+  private static final String TAG = SendDocsAsyncTask.class.getSimpleName();
+
+  private final long trackId;
+  private final Account account;
+  private final Context context;
+  private final MyTracksProviderUtils myTracksProviderUtils;
+  private final GDataClient gDataClient;
+  private final DocumentsClient documentsClient;
+  private final SpreadsheetsClient spreadsheetsClient;
+  
+  // The following variables are for per upload states
+  private String documentsAuthToken;
+  private String spreadsheetsAuthToken;
+  private String spreadsheetId;
+  private String worksheetId;
+
+  public SendDocsAsyncTask(SendDocsActivity activity, long trackId, Account account) {
+    super(activity);
+    this.trackId = trackId;
+    this.account = account;
+
+    context = activity.getApplicationContext();
+    myTracksProviderUtils = MyTracksProviderUtils.Factory.get(context);
+    gDataClient = GDataClientFactory.getGDataClient(context);
+    documentsClient = new DocumentsClient(
+        gDataClient, new XmlDocsGDataParserFactory(new AndroidXmlParserFactory()));
+    spreadsheetsClient = new SpreadsheetsClient(
+        gDataClient, new XmlDocsGDataParserFactory(new AndroidXmlParserFactory()));
+  }
+
+  @Override
+  protected void closeConnection() {
+    if (gDataClient != null) {
+      gDataClient.close();
+    } 
+  }
+
+  @Override
+  protected void saveResult() {
+    // No action for Google Docs
+  }
+
+  @Override
+  protected boolean performTask() {
+    // Reset the per upload states
+    documentsAuthToken = null;
+    spreadsheetsAuthToken = null;
+    spreadsheetId = null;
+    worksheetId = null;
+
+    try {
+      documentsAuthToken = AccountManager.get(context).blockingGetAuthToken(
+          account, documentsClient.getServiceName(), false);
+      spreadsheetsAuthToken = AccountManager.get(context).blockingGetAuthToken(
+          account, spreadsheetsClient.getServiceName(), false);
+    } catch (OperationCanceledException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    } catch (AuthenticatorException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    }
+
+    Track track = myTracksProviderUtils.getTrack(trackId);
+    if (track == null) {
+      Log.d(TAG, "No track for " + trackId);
+      return false;
+    }
+
+    String title = context.getString(R.string.my_tracks_app_name);
+    if (track.getCategory() != null && !track.getCategory().equals("")) {
+      title += "-" + track.getCategory();
+    }
+    try {
+      title = URLEncoder.encode(title, "UTF-8");
+      title = title.replace('+', ' ');
+    } catch (UnsupportedEncodingException e) {
+      Log.d(TAG, "No UTF-8 encoding", e);
+      return false;
+    }
+
+    // Get the spreadsheet ID
+    publishProgress(PROGRESS_GET_SPREADSHEET_ID);
+    if (!fetchSpreadSheetId(title, false)) {
+      return retryTask(); 
+    }
+
+    // Create a new spreadsheet if necessary
+    publishProgress(PROGRESS_CREATE_SPREADSHEET);
+    if (spreadsheetId == null) {
+      if (!createSpreadSheet(title)) {
+        Log.d(TAG, "Unable to create a new spreadsheet");
+        return false;
+      }
+
+      // The previous creation might have succeeded even though GData
+      // reported an error. Seems to be a know bug.
+      // See http://code.google.com/p/gdata-issues/issues/detail?id=929
+      // Try to find the created spreadsheet.
+      if (spreadsheetId == null) {
+        if (!fetchSpreadSheetId(title, true)) {
+          Log.d(TAG, "Unable to check if the new spreadsheet is created");
+          return false;
+        }
+
+        if (spreadsheetId == null) {
+          Log.d(TAG, "Unable to create a new spreadsheet");
+          return false;
+        }
+      }
+    }
+
+    // Get the worksheet ID
+    publishProgress(PROGRESS_GET_WORKSHEET_ID);
+    if (!fetchWorksheetId()) {
+      return retryTask();
+    }
+    if (worksheetId == null) {
+      Log.d(TAG, "Unable to get a worksheet ID");
+      return false;
+    }
+
+    // Add the track info
+    publishProgress(PROGRESS_ADD_TRACK_INFO);
+    if (!addTrackInfo(track)) {
+      Log.d(TAG, "Unable to add track info");
+      return false;
+    }
+
+    publishProgress(PROGRESS_COMPLETE);
+    return true;
+  }
+
+  @Override
+  protected void invalidateToken() {
+    AccountManager.get(context).invalidateAuthToken(Constants.ACCOUNT_TYPE, documentsAuthToken);
+    AccountManager.get(context).invalidateAuthToken(Constants.ACCOUNT_TYPE, spreadsheetsAuthToken);
+  }
+
+  /**
+   * Fetches the spreadsheet id. Sets the instance variable
+   * {@link SendDocsAsyncTask#spreadsheetId}.
+   *
+   * @param title the spreadsheet title
+   * @param waitFirst wait before checking
+   * @return true if completes.
+   */
+  private boolean fetchSpreadSheetId(String title, boolean waitFirst) {
+    if (isCancelled()) {
+      return false;
+    }
+
+    if (waitFirst) {
+      try {
+        Thread.sleep(5000);
+      } catch (InterruptedException e) {
+        Log.d(TAG, "Unable to wait", e);
+        return false;
+      }
+    }
+
+    try {
+      spreadsheetId = SendDocsUtils.getSpreadsheetId(title, documentsClient, documentsAuthToken);
+    } catch (ParseException e) {
+      Log.d(TAG, "Unable to fetch spreadsheet ID", e);
+      return false;
+    } catch (HttpException e) {
+      Log.d(TAG, "Unable to fetch spreadsheet ID", e);
+      return false;
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to fetch spreadsheet ID", e);
+      return false;
+    }
+
+    if (spreadsheetId == null) {
+      // Waiting a few seconds and trying again. Maybe the server just had a
+      // hickup (unfortunately that happens quite a lot...).
+      try {
+        Thread.sleep(5000);
+      } catch (InterruptedException e) {
+        Log.d(TAG, "Unable to wait", e);
+        return false;
+      }
+
+      try {
+        spreadsheetId = SendDocsUtils.getSpreadsheetId(title, documentsClient, documentsAuthToken);
+      } catch (ParseException e) {
+        Log.d(TAG, "Unable to fetch spreadsheet ID", e);
+        return false;
+      } catch (HttpException e) {
+        Log.d(TAG, "Unable to fetch spreadsheet ID", e);
+        return false;
+      } catch (IOException e) {
+        Log.d(TAG, "Unable to fetch spreadsheet ID", e);
+        return false;
+      }
+    }
+    return true;
+  }
+
+  /**
+   * Creates a spreadsheet. If successful, sets the instance variable
+   * {@link SendDocsAsyncTask#spreadsheetId}.
+   *
+   * @param spreadsheetTitle the spreadsheet title
+   * @return true if completes.
+   */
+  private boolean createSpreadSheet(String spreadsheetTitle) {
+    if (isCancelled()) {
+      return false;
+    }
+    try {
+      spreadsheetId = SendDocsUtils.createSpreadsheet(
+          spreadsheetTitle, documentsAuthToken, context);
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to create spreadsheet", e);
+      return false;
+    }
+    return true;
+  }
+
+  /**
+   * Fetches the worksheet ID. Sets the instance variable
+   * {@link SendDocsAsyncTask#worksheetId}.
+   *
+   * @return true if completes.
+   */
+  private boolean fetchWorksheetId() {
+    if (isCancelled()) {
+      return false;
+    }
+    try {
+      worksheetId = SendDocsUtils.getWorksheetId(
+          spreadsheetId, spreadsheetsClient, spreadsheetsAuthToken);
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to fetch worksheet ID", e);
+      return false;
+    } catch (AuthenticationException e) {
+      Log.d(TAG, "Unable to fetch worksheet ID", e);
+      return false;
+    } catch (ParseException e) {
+      Log.d(TAG, "Unable to fetch worksheet ID", e);
+      return false;
+    }
+    return true;
+  }
+
+  /**
+   * Adds track info to a worksheet.
+   * 
+   * @param track the track
+   * @return true if completes.
+   */
+  private boolean addTrackInfo(Track track) {
+    if (isCancelled()) {
+      return false;
+    }
+    try {
+      SendDocsUtils.addTrackInfo(track, spreadsheetId, worksheetId, spreadsheetsAuthToken, context);
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to add track info", e);
+      return false;
+    }
+    return true;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/docs/SendDocsUtils.java

@@ -0,0 +1,421 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.docs;
+
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.io.fusiontables.SendFusionTablesUtils;
+import com.google.android.apps.mytracks.io.gdata.docs.DocumentsClient;
+import com.google.android.apps.mytracks.io.gdata.docs.SpreadsheetsClient;
+import com.google.android.apps.mytracks.io.gdata.docs.SpreadsheetsClient.WorksheetEntry;
+import com.google.android.apps.mytracks.io.maps.SendMapsUtils;
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.ResourceUtils;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.apps.mytracks.util.UnitConversions;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.wireless.gdata.client.HttpException;
+import com.google.wireless.gdata.data.Entry;
+import com.google.wireless.gdata.parser.GDataParser;
+import com.google.wireless.gdata.parser.ParseException;
+import com.google.wireless.gdata2.client.AuthenticationException;
+
+import android.content.Context;
+import android.util.Log;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.net.URL;
+import java.net.URLConnection;
+import java.net.URLEncoder;
+import java.text.NumberFormat;
+import java.util.Locale;
+
+/**
+ * Utilities for sending a track to Google Docs.
+ *
+ * @author Sandor Dornbush
+ * @author Matthew Simmons
+ */
+public class SendDocsUtils {
+  @VisibleForTesting
+  public static final String GET_SPREADSHEET_BY_TITLE_URI =
+      "https://docs.google.com/feeds/documents/private/full?"
+      + "category=mine,spreadsheet&title=%s&title-exact=true";
+  private static final String CREATE_SPREADSHEET_URI =
+    "https://docs.google.com/feeds/documents/private/full";
+  private static final String GET_WORKSHEETS_URI =
+    "https://spreadsheets.google.com/feeds/worksheets/%s/private/full";
+  @VisibleForTesting
+  public static final String GET_WORKSHEET_URI =
+    "https://spreadsheets.google.com/feeds/list/%s/%s/private/full";
+  @VisibleForTesting
+  public static final String SPREADSHEET_ID_PREFIX =
+      "https://docs.google.com/feeds/documents/private/full/spreadsheet%3A";
+  @VisibleForTesting
+  public static final String CONTENT_TYPE = "Content-Type";
+  @VisibleForTesting
+  public static final String ATOM_FEED_MIME_TYPE = "application/atom+xml";
+  private static final String OPENDOCUMENT_SPREADSHEET_MIME_TYPE =
+      "application/x-vnd.oasis.opendocument.spreadsheet";
+
+  @VisibleForTesting
+  public static final String AUTHORIZATION = "Authorization";
+  @VisibleForTesting
+  public static final String AUTHORIZATION_PREFIX = "GoogleLogin auth=";
+
+  private static final String SLUG = "Slug";
+
+  // Google Docs can only parse numbers in the English locale.
+  private static final NumberFormat NUMBER_FORMAT = NumberFormat.getNumberInstance(Locale.ENGLISH);
+  private static final NumberFormat INTEGER_FORMAT = NumberFormat.getIntegerInstance(
+      Locale.ENGLISH);
+
+  static {
+    NUMBER_FORMAT.setMaximumFractionDigits(2);
+    NUMBER_FORMAT.setMinimumFractionDigits(2);
+  }
+
+  private static final String TAG = SendDocsUtils.class.getSimpleName();
+
+  private SendDocsUtils() {}
+
+  /**
+   * Gets the spreadsheet id of a spreadsheet. Returns null if the spreadsheet
+   * doesn't exist.
+   *
+   * @param title the title of the spreadsheet
+   * @param documentsClient the documents client
+   * @param authToken the auth token
+   * @return spreadsheet id or null if it doesn't exist.
+   */
+  public static String getSpreadsheetId(
+      String title, DocumentsClient documentsClient, String authToken)
+      throws IOException, ParseException, HttpException {
+    GDataParser gDataParser = null;
+    try {
+      String uri = String.format(Locale.US, GET_SPREADSHEET_BY_TITLE_URI, URLEncoder.encode(title));
+      gDataParser = documentsClient.getParserForFeed(Entry.class, uri, authToken);
+      gDataParser.init();
+
+      while (gDataParser.hasMoreData()) {
+        Entry entry = gDataParser.readNextEntry(null);
+        String entryTitle = entry.getTitle();
+        if (entryTitle.equals(title)) {
+          return getEntryId(entry);
+        }
+      }
+      return null;
+    } finally {
+      if (gDataParser != null) {
+        gDataParser.close();
+      }
+    }
+  }
+
+  /**
+   * Gets the id from an entry. Returns null if not available.
+   * 
+   * @param entry the entry
+   */
+  @VisibleForTesting
+  static String getEntryId(Entry entry) {
+    String entryId = entry.getId();
+    if (entryId.startsWith(SPREADSHEET_ID_PREFIX)) {
+      return entryId.substring(SPREADSHEET_ID_PREFIX.length());
+    }
+    return null;
+  }
+
+  /**
+   * Creates a new spreadsheet with the given title. Returns the spreadsheet ID
+   * if successful. Returns null otherwise. Note that it is possible that a new
+   * spreadsheet is created, but the returned ID is null.
+   *
+   * @param title the title
+   * @param authToken the auth token
+   * @param context the context
+   */
+  public static String createSpreadsheet(String title, String authToken, Context context)
+      throws IOException {
+    URL url = new URL(CREATE_SPREADSHEET_URI);
+    URLConnection conn = url.openConnection();
+    conn.addRequestProperty(CONTENT_TYPE, OPENDOCUMENT_SPREADSHEET_MIME_TYPE);
+    conn.addRequestProperty(SLUG, title);
+    conn.addRequestProperty(AUTHORIZATION, AUTHORIZATION_PREFIX + authToken);
+    conn.setDoOutput(true);
+    OutputStream outputStream = conn.getOutputStream();
+    ResourceUtils.readBinaryFileToOutputStream(
+        context, R.raw.mytracks_empty_spreadsheet, outputStream);
+
+    // Get the response
+    BufferedReader bufferedReader = null;
+    StringBuilder resultBuilder = new StringBuilder();
+    try {
+      bufferedReader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+      String line;
+      while ((line = bufferedReader.readLine()) != null) {
+        resultBuilder.append(line);
+      }
+    } catch (FileNotFoundException e) {
+      // The GData API sometimes throws an error, even though creation of
+      // the document succeeded. In that case let's just return. The caller
+      // then needs to check if the doc actually exists.
+      Log.d(TAG, "Unable to read result after creating a spreadsheet", e);
+      return null;
+    } finally {
+      outputStream.close();
+      if (bufferedReader != null) {
+        bufferedReader.close();
+      }
+    }
+    return getNewSpreadsheetId(resultBuilder.toString());
+  }
+
+  /**
+   * Gets the spreadsheet id from a create spreadsheet result.
+   *
+   * @param result the create spreadsheet result
+   */
+  @VisibleForTesting
+  static String getNewSpreadsheetId(String result) {
+    int idTagIndex = result.indexOf("<id>");
+    if (idTagIndex == -1) {
+      return null;
+    }
+
+    int idTagCloseIndex = result.indexOf("</id>", idTagIndex);
+    if (idTagCloseIndex == -1) {
+      return null;
+    }
+
+    int idStringStart = result.indexOf(SPREADSHEET_ID_PREFIX, idTagIndex);
+    if (idStringStart == -1) {
+      return null;
+    }
+
+    return result.substring(idStringStart + SPREADSHEET_ID_PREFIX.length(), idTagCloseIndex);
+  }
+
+  /**
+   * Gets the first worksheet ID of a spreadsheet. Returns null if not
+   * available.
+   *
+   * @param spreadsheetId the spreadsheet ID
+   * @param spreadsheetClient the spreadsheet client
+   * @param authToken the auth token
+   */
+  public static String getWorksheetId(
+      String spreadsheetId, SpreadsheetsClient spreadsheetClient, String authToken)
+      throws IOException, AuthenticationException, ParseException {
+    GDataParser gDataParser = null;
+    try {
+      String uri = String.format(Locale.US, GET_WORKSHEETS_URI, spreadsheetId);
+      gDataParser = spreadsheetClient.getParserForWorksheetsFeed(uri, authToken);
+      gDataParser.init();
+      if (!gDataParser.hasMoreData()) {
+        Log.d(TAG, "No worksheet");
+        return null;
+      }
+
+      // Get the first worksheet
+      WorksheetEntry worksheetEntry =
+          (WorksheetEntry) gDataParser.readNextEntry(new WorksheetEntry());
+      return getWorksheetEntryId(worksheetEntry);
+    } finally {
+      if (gDataParser != null) {
+        gDataParser.close();
+      }
+    }
+  }
+
+  /**
+   * Gets the worksheet id from a worksheet entry. Returns null if not available.
+   * 
+   * @param entry the worksheet entry
+   */
+  @VisibleForTesting
+  static String getWorksheetEntryId(WorksheetEntry entry) {
+    String id = entry.getId();
+    int lastSlash = id.lastIndexOf('/');
+    if (lastSlash == -1) {
+      Log.d(TAG, "No id");
+      return null;
+    }
+    return id.substring(lastSlash + 1);
+  }
+
+  /**
+   * Adds a track's info as a row in a worksheet.
+   *
+   * @param track the track
+   * @param spreadsheetId the spreadsheet ID
+   * @param worksheetId the worksheet ID
+   * @param authToken the auth token
+   * @param context the context
+   */
+  public static void addTrackInfo(
+      Track track, String spreadsheetId, String worksheetId, String authToken, Context context)
+      throws IOException {
+    String worksheetUri = String.format(Locale.US, GET_WORKSHEET_URI, spreadsheetId, worksheetId);
+    boolean metricUnits = PreferencesUtils.getBoolean(
+        context, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+    addRow(worksheetUri, getRowContent(track, metricUnits, context), authToken);
+  }
+
+  /**
+   * Gets the row content containing the track's info.
+   *
+   * @param track the track
+   * @param metricUnits true to use metric
+   * @param context the context
+   */
+  @VisibleForTesting
+  static String getRowContent(Track track, boolean metricUnits, Context context) {
+    TripStatistics stats = track.getTripStatistics();
+
+    String distanceUnit = context.getString(
+        metricUnits ? R.string.unit_kilometer : R.string.unit_mile);
+    String speedUnit = context.getString(
+        metricUnits ? R.string.unit_kilometer_per_hour : R.string.unit_mile_per_hour);
+    String elevationUnit = context.getString(
+        metricUnits ? R.string.unit_meter : R.string.unit_feet);
+
+    StringBuilder builder = new StringBuilder().append("<entry xmlns='http://www.w3.org/2005/Atom' "
+        + "xmlns:gsx='http://schemas.google.com/spreadsheets/2006/extended'>");
+    appendTag(builder, "name", track.getName());
+    appendTag(builder, "description", track.getDescription());
+    appendTag(builder, "date", StringUtils.formatDateTime(context, stats.getStartTime()));
+    appendTag(builder, "totaltime", StringUtils.formatElapsedTimeWithHour(stats.getTotalTime()));
+    appendTag(builder, "movingtime", StringUtils.formatElapsedTimeWithHour(stats.getMovingTime()));
+    appendTag(builder, "distance", getDistance(stats.getTotalDistance(), metricUnits));
+    appendTag(builder, "distanceunit", distanceUnit);
+    appendTag(builder, "averagespeed", getSpeed(stats.getAverageSpeed(), metricUnits));
+    appendTag(builder, "averagemovingspeed", getSpeed(stats.getAverageMovingSpeed(), metricUnits));
+    appendTag(builder, "maxspeed", getSpeed(stats.getMaxSpeed(), metricUnits));
+    appendTag(builder, "speedunit", speedUnit);
+    appendTag(builder, "elevationgain", getElevation(stats.getTotalElevationGain(), metricUnits));
+    appendTag(builder, "minelevation", getElevation(stats.getMinElevation(), metricUnits));
+    appendTag(builder, "maxelevation", getElevation(stats.getMaxElevation(), metricUnits));
+    appendTag(builder, "elevationunit", elevationUnit);
+
+    String map = SendMapsUtils.getMapUrl(track); 
+    if (map == null) {
+      map = context.getString(R.string.value_unknown);
+    }
+    appendTag(builder, "map", map);
+
+    String fusionTable = SendFusionTablesUtils.getMapUrl(track);
+    if (fusionTable == null) {
+      fusionTable = context.getString(R.string.value_unknown);
+    }
+    appendTag(builder, "fusiontable", fusionTable);
+
+    builder.append("</entry>");
+    return builder.toString();
+  }
+
+  /**
+   * Appends a name-value pair as a gsx tag to a string builder.
+   *
+   * @param stringBuilder the string builder
+   * @param name the name
+   * @param value the value
+   */
+  @VisibleForTesting
+  static void appendTag(StringBuilder stringBuilder, String name, String value) {
+    stringBuilder
+        .append("<gsx:")
+        .append(name)
+        .append(">")
+        .append(StringUtils.formatCData(value))
+        .append("</gsx:")
+        .append(name)
+        .append(">");
+  }
+
+  /**
+   * Gets the distance. Performs unit conversion and formatting.
+   *
+   * @param distanceInMeter the distance in meters
+   * @param metricUnits true to use metric
+   */
+  @VisibleForTesting
+  static final String getDistance(double distanceInMeter, boolean metricUnits) {
+    double distanceInKilometer = distanceInMeter * UnitConversions.M_TO_KM;
+    double distance = metricUnits ? distanceInKilometer
+        : distanceInKilometer * UnitConversions.KM_TO_MI;
+    return NUMBER_FORMAT.format(distance);
+  }
+
+  /**
+   * Gets the speed. Performs unit conversion and formatting.
+   *
+   * @param speedInMeterPerSecond the speed in meters per second
+   * @param metricUnits true to use metric
+   */
+  @VisibleForTesting
+  static final String getSpeed(double speedInMeterPerSecond, boolean metricUnits) {
+    double speedInKilometerPerHour = speedInMeterPerSecond * UnitConversions.MS_TO_KMH;
+    double speed = metricUnits ? speedInKilometerPerHour
+        : speedInKilometerPerHour * UnitConversions.KM_TO_MI;
+    return NUMBER_FORMAT.format(speed);
+  }
+
+  /**
+   * Gets the elevation. Performs unit conversion and formatting.
+   *
+   * @param elevationInMeter the elevation value in meters
+   * @param metricUnits true to use metric
+   */
+  @VisibleForTesting
+  static final String getElevation(double elevationInMeter, boolean metricUnits) {
+    double elevation = metricUnits ? elevationInMeter : elevationInMeter * UnitConversions.M_TO_FT;
+    return INTEGER_FORMAT.format(elevation);
+  }
+
+  /**
+   * Adds a row to a Google Spreadsheet worksheet.
+   *
+   * @param worksheetUri the worksheet URI
+   * @param rowContent the row content
+   * @param authToken the auth token
+   */
+  private static final void addRow(String worksheetUri, String rowContent, String authToken)
+      throws IOException {
+    URL url = new URL(worksheetUri);
+    URLConnection conn = url.openConnection();
+    conn.addRequestProperty(CONTENT_TYPE, ATOM_FEED_MIME_TYPE);
+    conn.addRequestProperty(AUTHORIZATION, AUTHORIZATION_PREFIX + authToken);
+    conn.setDoOutput(true);
+    OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());
+    writer.write(rowContent);
+    writer.flush();
+
+    // Get the response
+    BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+    while ((reader.readLine()) != null) {
+      // Just read till the end
+    }
+    writer.close();
+    reader.close();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/CsvTrackWriter.java

@@ -0,0 +1,243 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.file;
+
+import com.google.android.apps.mytracks.content.MyTracksLocation;
+import com.google.android.apps.mytracks.content.Sensor;
+import com.google.android.apps.mytracks.content.Sensor.SensorData;
+import com.google.android.apps.mytracks.content.Sensor.SensorDataSet;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.location.Location;
+
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.text.NumberFormat;
+
+/**
+ * Write track as CSV to a file. See RFC 4180 for info on CSV. Output three
+ * tables.<br>
+ * The first table contains the track info. Its columns are:<br>
+ * "Track name","Activity type","Track description" <br>
+ * <br>
+ * The second table contains the markers. Its columns are:<br>
+ * "Marker name","Marker type","Marker description","Latitude (deg)","Longitude
+ * (deg)","Altitude (m)","Bearing (deg)","Accuracy (m)","Speed (m/s)","Time"<br>
+ * <br>
+ * The thrid table contains the points. Its columns are:<br>
+ * "Segment","Point","Latitude (deg)","Longitude (deg)","Altitude (m)","Bearing
+ * (deg)","Accuracy (m)","Speed (m/s)","Time","Power (W)","Cadence (rpm)","Heart
+ * rate (bpm)","Battery level (%)"<br>
+ *
+ * @author Rodrigo Damazio
+ */
+public class CsvTrackWriter implements TrackFormatWriter {
+
+  private static final NumberFormat SHORT_FORMAT = NumberFormat.getInstance();
+
+  static {
+    SHORT_FORMAT.setMaximumFractionDigits(4);
+  }
+
+  private final Context context;
+  private PrintWriter printWriter;
+  private Track track;
+  private int segmentIndex;
+  private int pointIndex;
+
+  public CsvTrackWriter(Context context) {
+    this.context = context;
+  }
+
+  @Override
+  public String getExtension() {
+    return TrackFileFormat.CSV.getExtension();
+  }
+
+  @Override
+  public void prepare(Track aTrack, OutputStream out) {
+    track = aTrack;
+    printWriter = new PrintWriter(out);
+    segmentIndex = 0;
+    pointIndex = 0;
+  }
+
+  @Override
+  public void close() {
+    printWriter.close();
+  }
+
+  @Override
+  public void writeHeader() {
+    writeCommaSeparatedLine(context.getString(R.string.generic_name),
+        context.getString(R.string.track_edit_activity_type_hint),
+        context.getString(R.string.generic_description));
+    writeCommaSeparatedLine(track.getName(), track.getCategory(), track.getDescription());
+    writeCommaSeparatedLine();
+  }
+
+  @Override
+  public void writeFooter() {
+    // Do nothing
+  }
+
+  @Override
+  public void writeBeginWaypoints() {
+    writeCommaSeparatedLine(context.getString(R.string.generic_name),
+        context.getString(R.string.marker_edit_marker_type_hint),
+        context.getString(R.string.generic_description),
+        context.getString(R.string.description_location_latitude),
+        context.getString(R.string.description_location_longitude),
+        context.getString(R.string.description_location_altitude),
+        context.getString(R.string.description_location_bearing),
+        context.getString(R.string.description_location_accuracy),
+        context.getString(R.string.description_location_speed),
+        context.getString(R.string.description_time));
+  }
+
+  @Override
+  public void writeEndWaypoints() {
+    writeCommaSeparatedLine();
+  }
+
+  @Override
+  public void writeWaypoint(Waypoint waypoint) {
+    Location location = waypoint.getLocation();
+    writeCommaSeparatedLine(waypoint.getName(),
+        waypoint.getCategory(),
+        waypoint.getDescription(),
+        Double.toString(location.getLatitude()),
+        Double.toString(location.getLongitude()),
+        Double.toString(location.getAltitude()),
+        Double.toString(location.getBearing()),
+        SHORT_FORMAT.format(location.getAccuracy()),
+        SHORT_FORMAT.format(location.getSpeed()),
+        StringUtils.formatDateTimeIso8601(location.getTime()));
+  }
+
+  @Override
+  public void writeBeginTrack(Location firstPoint) {
+    writeCommaSeparatedLine(context.getString(R.string.description_track_segment),
+        context.getString(R.string.description_track_point),
+        context.getString(R.string.description_location_latitude),
+        context.getString(R.string.description_location_longitude),
+        context.getString(R.string.description_location_altitude),
+        context.getString(R.string.description_location_bearing),
+        context.getString(R.string.description_location_accuracy),
+        context.getString(R.string.description_location_speed),
+        context.getString(R.string.description_time),
+        context.getString(R.string.description_sensor_power),
+        context.getString(R.string.description_sensor_cadence),
+        context.getString(R.string.description_sensor_heart_rate),
+        context.getString(R.string.description_sensor_battery_level));
+  }
+
+  @Override
+  public void writeEndTrack(Location lastPoint) {
+    // Do nothing
+  }
+
+  @Override
+  public void writeOpenSegment() {
+    segmentIndex++;
+    pointIndex = 0;
+  }
+
+  @Override
+  public void writeCloseSegment() {
+    // Do nothing
+  }
+
+  @Override
+  public void writeLocation(Location location) {
+    String power = null;
+    String cadence = null;
+    String heartRate = null;
+    String batteryLevel = null;
+    if (location instanceof MyTracksLocation) {
+      SensorDataSet sensorDataSet = ((MyTracksLocation) location).getSensorDataSet();
+
+      if (sensorDataSet != null) {
+        if (sensorDataSet.hasPower()) {
+          SensorData sensorData = sensorDataSet.getPower();
+          if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
+            power = Double.toString(sensorData.getValue());
+          }
+        }
+        if (sensorDataSet.hasCadence()) {
+          SensorData sensorData = sensorDataSet.getCadence();
+          if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
+            cadence = Double.toString(sensorData.getValue());
+          }
+        }
+        if (sensorDataSet.hasHeartRate()) {
+          SensorData sensorData = sensorDataSet.getHeartRate();
+          if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
+            heartRate = Double.toString(sensorData.getValue());
+          }
+        }
+        if (sensorDataSet.hasBatteryLevel()) {
+          SensorData sensorData = sensorDataSet.getBatteryLevel();
+          if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
+            batteryLevel = Double.toString(sensorData.getValue());
+          }
+        }
+      }
+    }
+    pointIndex++;
+    writeCommaSeparatedLine(Integer.toString(segmentIndex),
+        Integer.toString(pointIndex),
+        Double.toString(location.getLatitude()),
+        Double.toString(location.getLongitude()),
+        Double.toString(location.getAltitude()),
+        Double.toString(location.getBearing()),
+        SHORT_FORMAT.format(location.getAccuracy()),
+        SHORT_FORMAT.format(location.getSpeed()),
+        StringUtils.formatDateTimeIso8601(location.getTime()),
+        power,
+        cadence,
+        heartRate,
+        batteryLevel);
+  }
+
+  /**
+   * Writes a single line of a CSV file.
+   *
+   * @param values the values to be written as CSV
+   */
+  private void writeCommaSeparatedLine(String... values) {
+    StringBuilder builder = new StringBuilder();
+    boolean isFirst = true;
+    for (String value : values) {
+      if (!isFirst) {
+        builder.append(',');
+      }
+      isFirst = false;
+
+      if (value != null) {
+        builder.append('"');
+        builder.append(value.replaceAll("\"", "\"\""));
+        builder.append('"');
+      }
+    }
+    printWriter.println(builder.toString());
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/GpxImporter.java

@@ -0,0 +1,542 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.file;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.stats.TripStatisticsBuilder;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.apps.mytracks.util.StringUtils;
+
+import android.location.Location;
+import android.location.LocationManager;
+import android.net.Uri;
+import android.util.Log;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.Locator;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+/**
+ * Imports GPX file to My Tracks.
+ * 
+ * @author Leif Hendrik Wilden
+ * @author Steffen Horlacher
+ * @author Rodrigo Damazio
+ */
+public class GpxImporter extends DefaultHandler {
+
+  // GPX tag names and attributes.
+  private static final String TAG_TRACK = "trk";
+  private static final String TAG_TRACK_POINT = "trkpt";
+  private static final Object TAG_TRACK_SEGMENT = "trkseg";
+  private static final String TAG_NAME = "name";
+  private static final String TAG_DESCRIPTION = "desc";
+  private static final String TAG_ALTITUDE = "ele";
+  private static final String TAG_TIME = "time";
+  private static final String ATT_LAT = "lat";
+  private static final String ATT_LON = "lon";
+
+  /**
+   * The maximum number of locations to buffer for bulk-insertion into the
+   * database.
+   */
+  private static final int MAX_BUFFERED_LOCATIONS = 512;
+
+  /**
+   * Utilities for accessing the content provider.
+   */
+  private final MyTracksProviderUtils myTracksProviderUtils;
+
+  /**
+   * List of track ids written in the database. Only contains successfully
+   * written tracks.
+   */
+  private final List<Long> tracksIds;
+
+  /**
+   * Contains the current elements content.
+   */
+  private String content;
+
+  /**
+   * Currently location.
+   */
+  private Location location;
+
+  /**
+   * Last location.
+   */
+  private Location lastLocation;
+
+  /**
+   * Last segment location.
+   */
+  private Location lastSegmentLocation;
+
+  /**
+   * Currently reading track.
+   */
+  private Track track;
+
+  /**
+   * Statistics builder for the current track.
+   */
+  private TripStatisticsBuilder tripStatisticsBuilder;
+
+  /**
+   * Buffer of locations to be bulk-inserted into the database.
+   */
+  private Location[] bufferedPointInserts = new Location[MAX_BUFFERED_LOCATIONS];
+
+  /**
+   * Number of locations buffered to be inserted into the database.
+   */
+  private int numBufferedPointInserts = 0;
+
+  /**
+   * Number of locations already processed.
+   */
+  private int numberOfLocations = 0;
+
+  /**
+   * Number of segments already processed.
+   */
+  private int numberOfSegments = 0;
+
+  /**
+   * Used to identify if a track was written to the database but not yet
+   * finished successfully.
+   */
+  private boolean isCurrentTrackRollbackable = false;
+
+  /**
+   * Flag to indicate if we're inside a track's xml element. Some sub elements
+   * like name may be used in other parts of the GPX file, and we use this to
+   * ignore them.
+   */
+  private boolean isInTrackElement = false;
+
+  /**
+   * Counter to find out which child level of the track we are processing.
+   */
+  private int trackChildDepth = 0;
+
+  /**
+   * SAX locator to get the current line information.
+   */
+  private Locator locator;
+
+  /**
+   * Reads GPS tracks from a GPX file and writes tracks and their coordinates to
+   * the database.
+   * 
+   * @param inputStream an input stream for the GPX file
+   * @param myTracksProviderUtils my tracks provider utils
+   * @return long[] array of track ids written to the database.
+   */
+  public static long[] importGPXFile(
+      final InputStream inputStream, final MyTracksProviderUtils myTracksProviderUtils)
+      throws ParserConfigurationException, SAXException, IOException {
+    SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
+    SAXParser saxParser = saxParserFactory.newSAXParser();
+    GpxImporter gpxImporter = new GpxImporter(myTracksProviderUtils);
+    long[] trackIds = new long[0];
+
+    try {
+      long start = System.currentTimeMillis();
+
+      saxParser.parse(inputStream, gpxImporter);
+
+      long end = System.currentTimeMillis();
+      Log.d(Constants.TAG, "Total import time: " + (end - start) + "ms");
+
+      trackIds = gpxImporter.getImportedTrackIds();
+      if (trackIds.length == 0) {
+        throw new IOException("No track imported.");
+      }
+    } finally {
+      // Delete track if not finished
+      gpxImporter.rollbackUnfinishedTracks();
+    }
+
+    return trackIds;
+  }
+
+  public GpxImporter(MyTracksProviderUtils myTracksProviderUtils) {
+    this.myTracksProviderUtils = myTracksProviderUtils;
+    tracksIds = new ArrayList<Long>();
+  }
+
+  @Override
+  public void characters(char[] ch, int start, int length) throws SAXException {
+    String newContent = new String(ch, start, length);
+    if (content == null) {
+      content = newContent;
+    } else {
+      /*
+       * In 99% of the cases, a single call to this method will be made for each
+       * sequence of characters we're interested in, so we'll rarely be
+       * concatenating strings, thus not justifying the use of a StringBuilder.
+       */
+      content += newContent;
+    }
+  }
+
+  @Override
+  public void startElement(String uri, String localName, String name, Attributes attributes)
+      throws SAXException {
+    if (isInTrackElement) {
+      trackChildDepth++;
+      if (localName.equals(TAG_TRACK_POINT)) {
+        onTrackPointElementStart(attributes);
+      } else if (localName.equals(TAG_TRACK_SEGMENT)) {
+        onTrackSegmentElementStart();
+      } else if (localName.equals(TAG_TRACK)) {
+        throw new SAXException(createErrorMessage("Invalid GPX detected."));
+      }
+    } else if (localName.equals(TAG_TRACK)) {
+      isInTrackElement = true;
+      trackChildDepth = 0;
+      onTrackElementStart();
+    }
+  }
+
+  @Override
+  public void endElement(String uri, String localName, String name) throws SAXException {
+    if (!isInTrackElement) {
+      content = null;
+      return;
+    }
+
+    // process these elements only as sub-elements of track
+    if (localName.equals(TAG_TRACK_POINT)) {
+      onTrackPointElementEnd();
+    } else if (localName.equals(TAG_ALTITUDE)) {
+      onAltitudeElementEnd();
+    } else if (localName.equals(TAG_TIME)) {
+      onTimeElementEnd();
+    } else if (localName.equals(TAG_NAME)) {
+      // we are only interested in the first level name element
+      if (trackChildDepth == 1) {
+        onNameElementEnd();
+      }
+    } else if (localName.equals(TAG_DESCRIPTION)) {
+      // we are only interested in the first level description element
+      if (trackChildDepth == 1) {
+        onDescriptionElementEnd();
+      }
+    } else if (localName.equals(TAG_TRACK_SEGMENT)) {
+      onTrackSegmentElementEnd();
+    } else if (localName.equals(TAG_TRACK)) {
+      onTrackElementEnd();
+      isInTrackElement = false;
+      trackChildDepth = 0;
+    }
+    trackChildDepth--;
+
+    // reset element content
+    content = null;
+  }
+
+  @Override
+  public void setDocumentLocator(Locator locator) {
+    this.locator = locator;
+  }
+
+  /**
+   * Rolls back last track if possible.
+   */
+  public void rollbackUnfinishedTracks() {
+    if (isCurrentTrackRollbackable) {
+      myTracksProviderUtils.deleteTrack(track.getId());
+      isCurrentTrackRollbackable = false;
+    }
+  }
+
+  /**
+   * On track element start.
+   */
+  private void onTrackElementStart() {
+    track = new Track();
+    numberOfLocations = 0;
+
+    Uri uri = myTracksProviderUtils.insertTrack(track);
+    long trackId = Long.parseLong(uri.getLastPathSegment());
+    track.setId(trackId);
+    isCurrentTrackRollbackable = true;
+  }
+
+  /**
+   * On track element end.
+   */
+  private void onTrackElementEnd() {
+    if (lastLocation != null) {
+      flushPoints();
+
+      // Calculate statistics for the imported track
+      tripStatisticsBuilder.pauseAt(lastLocation.getTime());
+      track.setStopId(getLastPointId());
+    } else {
+      tripStatisticsBuilder = new TripStatisticsBuilder(0);
+      tripStatisticsBuilder.pauseAt(0);
+    }
+    track.setTripStatistics(tripStatisticsBuilder.getStatistics());
+    track.setNumberOfPoints(numberOfLocations);
+    myTracksProviderUtils.updateTrack(track);
+    tracksIds.add(track.getId());
+    isCurrentTrackRollbackable = false;
+    lastSegmentLocation = null;
+    lastLocation = null;
+    tripStatisticsBuilder = null;
+  }
+
+  /**
+   * On track segment start.
+   */
+  private void onTrackSegmentElementStart() {
+    if (numberOfSegments > 0) {
+      // Add a segment separator
+      location = new Location(LocationManager.GPS_PROVIDER);
+      location.setLatitude(100.0);
+      location.setLongitude(100.0);
+      location.setAltitude(0);
+      if (lastLocation != null) {
+        location.setTime(lastLocation.getTime());
+      }
+      insertPoint(location);
+      lastLocation = location;
+      lastSegmentLocation = null;
+      location = null;
+    }
+    numberOfSegments++;
+  }
+
+  /**
+   * On track segment element end.
+   */
+  private void onTrackSegmentElementEnd() {
+    // Nothing to be done
+  }
+
+  /**
+   * On track point element start.
+   * 
+   * @param attributes the attributes
+   */
+  private void onTrackPointElementStart(Attributes attributes) throws SAXException {
+    if (location != null) {
+      throw new SAXException(createErrorMessage("Found a track point inside another one."));
+    }
+    String latitude = attributes.getValue(ATT_LAT);
+    String longitude = attributes.getValue(ATT_LON);
+    
+    if (latitude == null || longitude == null) {
+      throw new SAXException(createErrorMessage("Point with no longitude or latitude."));
+    }
+    
+    Location newLocation = new Location(LocationManager.GPS_PROVIDER);
+    try {
+      newLocation.setLatitude(Double.parseDouble(latitude));
+      newLocation.setLongitude(Double.parseDouble(longitude));
+    } catch (NumberFormatException e) {
+      throw new SAXException(createErrorMessage(
+          "Unable to parse latitude/longitude: " + latitude + "/" + longitude), e);
+    }
+    location = newLocation;
+  }
+
+  /**
+   * On track point element end.
+   */
+  private void onTrackPointElementEnd() throws SAXException {
+    if (LocationUtils.isValidLocation(location)) {
+      if (tripStatisticsBuilder == null) {
+        // first point did not have a time, start stats builder without it
+        tripStatisticsBuilder = new TripStatisticsBuilder(0);
+      }
+      tripStatisticsBuilder.addLocation(location, location.getTime());
+
+      // insert in db
+      insertPoint(location);
+
+      // first track point?
+      if (lastLocation == null && numberOfSegments == 1) {
+        track.setStartId(getLastPointId());
+      }
+
+      lastLocation = location;
+      lastSegmentLocation = location;
+      location = null;
+    } else {
+      // invalid location - abort import
+      throw new SAXException(createErrorMessage("Invalid location detected: " + location));
+    }
+  }
+
+  /**
+   * On time element end. Sets location time and doing additional calculations
+   * as this is the last value required for the location. Also sets the start time
+   * for the trip statistics builder as there is no start time in the track root
+   * element.
+   */
+  private void onTimeElementEnd() throws SAXException {
+    if (location == null) {
+      return;
+    }
+
+    if (content == null) {
+      return;
+    }
+      
+    // Parse the time
+    long time;
+    try {
+      time = StringUtils.getTime(content.trim());
+    } catch (IllegalArgumentException e) {
+      throw new SAXException(createErrorMessage("Unable to parse time: " + content), e);
+    }
+
+    // Calculate derived attributes from previous point
+    if (lastSegmentLocation != null) {
+      long timeDifference = time - lastSegmentLocation.getTime();
+
+      // check for negative time change
+      if (timeDifference < 0) {
+        Log.w(Constants.TAG, "Found negative time change.");
+      } else {
+
+        /*
+         * We don't have a speed and bearing in GPX, make something up from the
+         * last two points. GPS points tend to have some inherent imprecision,
+         * speed and bearing will likely be off, so the statistics for things
+         * like max speed will also be off.
+         */
+        float speed = location.distanceTo(lastLocation) * 1000.0f / timeDifference;
+        location.setSpeed(speed);
+        location.setBearing(lastSegmentLocation.bearingTo(location));
+      }
+    }
+
+    // Fill in the time
+    location.setTime(time);
+
+    // initialize start time with time of first track point
+    if (tripStatisticsBuilder == null) {
+      tripStatisticsBuilder = new TripStatisticsBuilder(time);
+    }
+  }
+
+  /**
+   * On altitude element end.
+   */
+  private void onAltitudeElementEnd() throws SAXException {
+    if (location != null && content != null) {
+      try {
+        location.setAltitude(Double.parseDouble(content));
+      } catch (NumberFormatException e) {
+        throw new SAXException(createErrorMessage("Unable to parse altitude: " + content), e);
+      }
+    }
+  }
+
+  /**
+   * On name element end.
+   */
+  private void onNameElementEnd() {
+    if (content != null) {
+      track.setName(content.toString().trim());
+    }
+  }
+
+  /**
+   * On description element end.
+   */
+  private void onDescriptionElementEnd() {
+    if (content != null) {
+      track.setDescription(content.toString().trim());
+    }
+  }
+
+  /**
+   * Inserts a point.
+   * 
+   * @param newLocation the location
+   */
+  private void insertPoint(Location newLocation) {
+    bufferedPointInserts[numBufferedPointInserts] = newLocation;
+    numBufferedPointInserts++;
+    numberOfLocations++;
+
+    if (numBufferedPointInserts >= MAX_BUFFERED_LOCATIONS) {
+      flushPoints();
+    }
+  }
+
+  /**
+   * Flushes the points to the database.
+   */
+  private void flushPoints() {
+    if (numBufferedPointInserts <= 0) {
+      return;
+    }
+    myTracksProviderUtils.bulkInsertTrackPoints(
+        bufferedPointInserts, numBufferedPointInserts, track.getId());
+    numBufferedPointInserts = 0;
+  }
+
+  /**
+   * Gets the imported track ids.
+   *
+   */
+  private long[] getImportedTrackIds() {
+    long[] result = new long[tracksIds.size()];
+    for (int i = 0; i < result.length; i++) {
+      result[i] = tracksIds.get(i);
+    }
+    return result;
+  }
+
+  /**
+   * Gets the last point id inserted into the database.
+   */
+  private long getLastPointId() {
+    flushPoints();
+    return myTracksProviderUtils.getLastLocationId(track.getId());
+  }
+
+  /**
+   * Creates an error message.
+   * 
+   * @param message the message
+   */
+  private String createErrorMessage(String message) {
+    return String.format(Locale.US, "Parsing error at line: %d column: %d. %s",
+        locator.getLineNumber(), locator.getColumnNumber(), message);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/GpxTrackWriter.java

@@ -0,0 +1,181 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.file;
+
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.location.Location;
+
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.text.NumberFormat;
+import java.util.Locale;
+
+/**
+ * Write track as GPX to a file.
+ *
+ * @author Sandor Dornbush
+ */
+public class GpxTrackWriter implements TrackFormatWriter {
+
+  private static final NumberFormat ELEVATION_FORMAT = NumberFormat.getInstance(Locale.US);
+  private static final NumberFormat COORDINATE_FORMAT = NumberFormat.getInstance(Locale.US);
+  static {
+    // GPX readers expect to see fractional numbers with US-style punctuation.
+    // That is, they want periods for decimal points, rather than commas.
+    ELEVATION_FORMAT.setMaximumFractionDigits(1);
+    ELEVATION_FORMAT.setGroupingUsed(false);
+
+    COORDINATE_FORMAT.setMaximumFractionDigits(5);
+    COORDINATE_FORMAT.setMaximumIntegerDigits(3);
+    COORDINATE_FORMAT.setGroupingUsed(false);
+  }
+
+  private final Context context;
+  private Track track;
+  private PrintWriter printWriter;
+
+  public GpxTrackWriter(Context context) {
+    this.context = context;
+  }
+
+  @Override
+  public String getExtension() {
+    return TrackFileFormat.GPX.getExtension();
+  }
+
+  @Override
+  public void prepare(Track aTrack, OutputStream outputStream) {
+    this.track = aTrack;
+    this.printWriter = new PrintWriter(outputStream);
+  }
+
+  @Override
+  public void close() {
+    if (printWriter != null) {
+      printWriter.close();
+      printWriter = null;
+    }
+  }
+
+  @Override
+  public void writeHeader() {
+    if (printWriter != null) {
+      printWriter.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+      printWriter.println("<gpx");
+      printWriter.println("version=\"1.1\"");
+      printWriter.println(
+          "creator=\"" + context.getString(R.string.send_google_by_my_tracks, "", "") + "\"");
+      printWriter.println("xmlns=\"http://www.topografix.com/GPX/1/1\"");
+      printWriter.println(
+          "xmlns:topografix=\"http://www.topografix.com/GPX/Private/TopoGrafix/0/1\"");
+      printWriter.println("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"");
+      printWriter.println("xsi:schemaLocation=\"http://www.topografix.com/GPX/1/1"
+          + " http://www.topografix.com/GPX/1/1/gpx.xsd"
+          + " http://www.topografix.com/GPX/Private/TopoGrafix/0/1"
+          + " http://www.topografix.com/GPX/Private/TopoGrafix/0/1/topografix.xsd\">");
+      printWriter.println("<metadata>");
+      printWriter.println("<name>" + StringUtils.formatCData(track.getName()) + "</name>");
+      printWriter.println("<desc>" + StringUtils.formatCData(track.getDescription()) + "</desc>");
+      printWriter.println("</metadata>");
+    }
+  }
+
+  @Override
+  public void writeFooter() {
+    if (printWriter != null) {
+      printWriter.println("</gpx>");
+    }
+  }
+
+  @Override
+  public void writeBeginTrack(Location firstLocation) {
+    if (printWriter != null) {
+      printWriter.println("<trk>");
+      printWriter.println("<name>" + StringUtils.formatCData(track.getName()) + "</name>");
+      printWriter.println("<desc>" + StringUtils.formatCData(track.getDescription()) + "</desc>");
+      printWriter.println("<extensions><topografix:color>c0c0c0</topografix:color></extensions>");
+    }
+  }
+
+  @Override
+  public void writeEndTrack(Location lastLocation) {
+    if (printWriter != null) {
+      printWriter.println("</trk>");
+    }
+  }
+
+  @Override
+  public void writeOpenSegment() {
+    printWriter.println("<trkseg>");
+  }
+
+  @Override
+  public void writeCloseSegment() {
+    printWriter.println("</trkseg>");
+  }
+
+  @Override
+  public void writeLocation(Location location) {
+    if (printWriter != null) {
+      printWriter.println("<trkpt " + formatLocation(location) + ">");
+      printWriter.println("<ele>" + ELEVATION_FORMAT.format(location.getAltitude()) + "</ele>");
+      printWriter.println("<time>" + StringUtils.formatDateTimeIso8601(location.getTime()) + "</time>");
+      printWriter.println("</trkpt>");
+    }
+  }
+
+  @Override
+  public void writeBeginWaypoints() {
+    // Do nothing
+  }
+
+  @Override
+  public void writeEndWaypoints() {
+    // Do nothing
+  }
+
+  @Override
+  public void writeWaypoint(Waypoint waypoint) {
+    if (printWriter != null) {
+      Location location = waypoint.getLocation();
+      if (location != null) {
+        printWriter.println("<wpt " + formatLocation(location) + ">");
+        printWriter.println("<ele>" + ELEVATION_FORMAT.format(location.getAltitude()) + "</ele>");
+        printWriter.println("<time>" + StringUtils.formatDateTimeIso8601(location.getTime()) + "</time>");
+        printWriter.println("<name>" + StringUtils.formatCData(waypoint.getName()) + "</name>");
+        printWriter.println(
+            "<desc>" + StringUtils.formatCData(waypoint.getDescription()) + "</desc>");
+        printWriter.println("</wpt>");
+      }
+    }
+  }
+
+  /**
+   * Formats a location with latitude and longitude coordinates.
+   *
+   * @param location the location
+   */
+  private String formatLocation(Location location) {
+    return "lat=\"" + COORDINATE_FORMAT.format(location.getLatitude()) + "\" lon=\""
+        + COORDINATE_FORMAT.format(location.getLongitude()) + "\"";
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/KmlTrackWriter.java

@@ -0,0 +1,376 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.file;
+
+import com.google.android.apps.mytracks.content.DescriptionGenerator;
+import com.google.android.apps.mytracks.content.DescriptionGeneratorImpl;
+import com.google.android.apps.mytracks.content.MyTracksLocation;
+import com.google.android.apps.mytracks.content.Sensor;
+import com.google.android.apps.mytracks.content.Sensor.SensorData;
+import com.google.android.apps.mytracks.content.Sensor.SensorDataSet;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Context;
+import android.location.Location;
+
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+
+/**
+ * Write track as KML to a file.
+ *
+ * @author Leif Hendrik Wilden
+ */
+public class KmlTrackWriter implements TrackFormatWriter {
+
+  /**
+   * ID of the KML feature to play a tour.
+   */
+  public static final String TOUR_FEATURE_ID = "tour";
+
+  private static final String WAYPOINT_STYLE = "waypoint";
+  private static final String STATISTICS_STYLE = "statistics";
+  private static final String START_STYLE = "start";
+  private static final String END_STYLE = "end";
+  private static final String TRACK_STYLE = "track";
+  private static final String SCHEMA_ID = "schema";
+  private static final String CADENCE = "cadence";
+  private static final String HEART_RATE = "heart_rate";
+  private static final String POWER = "power";
+  private static final String BATTER_LEVEL = "battery_level";
+
+  private static final String WAYPOINT_ICON =
+      "http://maps.google.com/mapfiles/kml/pushpin/blue-pushpin.png";
+  private static final String STATISTICS_ICON =
+      "http://maps.google.com/mapfiles/kml/pushpin/ylw-pushpin.png";
+  private static final String START_ICON =
+      "http://maps.google.com/mapfiles/kml/paddle/grn-circle.png";
+  private static final String END_ICON =
+      "http://maps.google.com/mapfiles/kml/paddle/red-circle.png";
+  private static final String TRACK_ICON =
+      "http://earth.google.com/images/kml-icons/track-directional/track-0.png";
+
+  private final Context context;
+  private final DescriptionGenerator descriptionGenerator;
+  private Track track;
+  private PrintWriter printWriter;
+  private ArrayList<Integer> powerList = new ArrayList<Integer>();
+  private ArrayList<Integer> cadenceList = new ArrayList<Integer>();
+  private ArrayList<Integer> heartRateList = new ArrayList<Integer>();
+  private ArrayList<Integer> batteryLevelList = new ArrayList<Integer>();
+  private boolean hasPower;
+  private boolean hasCadence;
+  private boolean hasHeartRate;
+  private boolean hasBatteryLevel;
+
+  public KmlTrackWriter(Context context) {
+    this(context, new DescriptionGeneratorImpl(context));
+  }
+
+  @VisibleForTesting
+  KmlTrackWriter(Context context, DescriptionGenerator descriptionGenerator) {
+    this.context = context;
+    this.descriptionGenerator = descriptionGenerator;
+  }
+
+  @Override
+  public String getExtension() {
+    return TrackFileFormat.KML.getExtension();
+  }
+
+  @Override
+  public void prepare(Track aTrack, OutputStream outputStream) {
+    this.track = aTrack;
+    this.printWriter = new PrintWriter(outputStream);
+  }
+
+  @Override
+  public void close() {
+    if (printWriter != null) {
+      printWriter.close();
+      printWriter = null;
+    }
+  }
+
+  @Override
+  public void writeHeader() {
+    if (printWriter != null) {
+      printWriter.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+      printWriter.println("<kml xmlns=\"http://www.opengis.net/kml/2.2\"");
+      printWriter.println("xmlns:atom=\"http://www.w3.org/2005/Atom\"");
+      printWriter.println("xmlns:gx=\"http://www.google.com/kml/ext/2.2\">");
+      printWriter.println("<Document>");
+      printWriter.println("<open>1</open>");
+      printWriter.println("<visibility>1</visibility>");
+      printWriter.println(
+          "<description>" + StringUtils.formatCData(track.getDescription()) + "</description>");
+      printWriter.println("<name>" + StringUtils.formatCData(track.getName()) + "</name>");
+      printWriter.println("<atom:author><atom:name>" + StringUtils.formatCData(
+          context.getString(R.string.send_google_by_my_tracks, "", ""))
+          + "</atom:name></atom:author>");
+      writeTrackStyle();
+      writePlacemarkerStyle(START_STYLE, START_ICON, 32, 1);
+      writePlacemarkerStyle(END_STYLE, END_ICON, 32, 1);
+      writePlacemarkerStyle(STATISTICS_STYLE, STATISTICS_ICON, 20, 2);
+      writePlacemarkerStyle(WAYPOINT_STYLE, WAYPOINT_ICON, 20, 2);
+      printWriter.println("<Schema id=\"" + SCHEMA_ID + "\">");
+      writeSensorStyle(POWER, context.getString(R.string.description_sensor_power));
+      writeSensorStyle(CADENCE, context.getString(R.string.description_sensor_cadence));
+      writeSensorStyle(HEART_RATE, context.getString(R.string.description_sensor_heart_rate));
+      writeSensorStyle(BATTER_LEVEL, context.getString(R.string.description_sensor_battery_level));
+      printWriter.println("</Schema>");
+    }
+  }
+
+  @Override
+  public void writeFooter() {
+    if (printWriter != null) {
+      printWriter.println("</Document>");
+      printWriter.println("</kml>");
+    }
+  }
+
+  @Override
+  public void writeBeginWaypoints() {
+    if (printWriter != null) {
+      printWriter.println(
+          "<Folder><name>" + StringUtils.formatCData(context.getString(R.string.menu_markers))
+              + "</name>");
+    }
+  }
+
+  @Override
+  public void writeEndWaypoints() {
+    if (printWriter != null) {
+      printWriter.println("</Folder>");
+    }
+  }
+
+  @Override
+  public void writeWaypoint(Waypoint waypoint) {
+    if (printWriter != null) {
+      String styleName = waypoint.getType() == Waypoint.TYPE_STATISTICS ? STATISTICS_STYLE
+          : WAYPOINT_STYLE;
+      writePlacemark(
+          waypoint.getName(), waypoint.getDescription(), styleName, waypoint.getLocation());
+    }
+  }
+
+  @Override
+  public void writeBeginTrack(Location firstLocation) {
+    if (printWriter != null) {
+      String name = context.getString(R.string.marker_label_start, track.getName());
+      writePlacemark(name, track.getDescription(), START_STYLE, firstLocation);
+      printWriter.println("<Placemark id=\"" + TOUR_FEATURE_ID + "\">");
+      printWriter.println(
+          "<description>" + StringUtils.formatCData(track.getDescription()) + "</description>");
+      printWriter.println("<name>" + StringUtils.formatCData(track.getName()) + "</name>");
+      printWriter.println("<styleUrl>#" + TRACK_STYLE + "</styleUrl>");
+      printWriter.println("<gx:MultiTrack>");
+      printWriter.println("<altitudeMode>absolute</altitudeMode>");
+      printWriter.println("<gx:interpolate>1</gx:interpolate>");
+    }
+  }
+
+  @Override
+  public void writeEndTrack(Location lastLocation) {
+    if (printWriter != null) {
+      printWriter.println("</gx:MultiTrack>");
+      printWriter.println("</Placemark>");
+      String name = context.getString(R.string.marker_label_end, track.getName());
+      String description = descriptionGenerator.generateTrackDescription(track, null, null, false);
+      writePlacemark(name, description, END_STYLE, lastLocation);
+    }
+  }
+
+  @Override
+  public void writeOpenSegment() {
+    if (printWriter != null) {
+      printWriter.println("<gx:Track>");
+      hasPower = false;
+      hasCadence = false;
+      hasHeartRate = false;
+      hasBatteryLevel = false;
+      powerList.clear();
+      cadenceList.clear();
+      heartRateList.clear();
+      batteryLevelList.clear();
+    }
+  }
+
+  @Override
+  public void writeCloseSegment() {
+    if (printWriter != null) {
+      printWriter.println("<ExtendedData>");
+      printWriter.println("<SchemaData schemaUrl=\"#" + SCHEMA_ID + "\">");
+      if (hasPower) {
+        writeSensorData(powerList, POWER);
+      }
+      if (hasCadence) {
+        writeSensorData(cadenceList, CADENCE);
+      }
+      if (hasHeartRate) {
+        writeSensorData(heartRateList, HEART_RATE);
+      }
+      if (hasBatteryLevel) {
+        writeSensorData(batteryLevelList, BATTER_LEVEL);
+      }
+      printWriter.println("</SchemaData>");
+      printWriter.println("</ExtendedData>");
+      printWriter.println("</gx:Track>");
+    }
+  }
+
+  @Override
+  public void writeLocation(Location location) {
+    if (printWriter != null) {
+      printWriter.println("<when>" + StringUtils.formatDateTimeIso8601(location.getTime()) + "</when>");
+      printWriter.println(
+          "<gx:coord>" + location.getLongitude() + " " + location.getLatitude() + " "
+              + location.getAltitude() + "</gx:coord>");
+      if (location instanceof MyTracksLocation) {
+        SensorDataSet sensorDataSet = ((MyTracksLocation) location).getSensorDataSet();
+        int power = -1;
+        int cadence = -1;
+        int heartRate = -1;
+        int batteryLevel = -1;
+
+        if (sensorDataSet != null) {
+          if (sensorDataSet.hasPower()) {
+            SensorData sensorData = sensorDataSet.getPower();
+            if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
+              hasPower = true;
+              power = sensorData.getValue();
+            }
+          }
+          if (sensorDataSet.hasCadence()) {
+            SensorData sensorData = sensorDataSet.getCadence();
+            if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
+              hasCadence = true;
+              cadence = sensorData.getValue();
+            }
+          }
+          if (sensorDataSet.hasHeartRate()) {
+            SensorData sensorData = sensorDataSet.getHeartRate();
+            if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
+              hasHeartRate = true;
+              heartRate = sensorData.getValue();
+            }
+          }
+          if (sensorDataSet.hasBatteryLevel()) {
+            SensorData sensorData = sensorDataSet.getBatteryLevel();
+            if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
+              hasBatteryLevel = true;
+              batteryLevel = sensorData.getValue();
+            }
+          }
+        }
+        powerList.add(power);
+        cadenceList.add(cadence);
+        heartRateList.add(heartRate);
+        batteryLevelList.add(batteryLevel);
+      }
+    }
+  }
+
+  /**
+   * Writes the sensor data.
+   *
+   * @param list a list of sensor data
+   * @param name the name of the sensor data
+   */
+  private void writeSensorData(ArrayList<Integer> list, String name) {
+    printWriter.println("<gx:SimpleArrayData name=\"" + name + "\">");
+    for (int i = 0; i < list.size(); i++) {
+      printWriter.println("<gx:value>" + list.get(i) + "</gx:value>");
+    }
+    printWriter.println("</gx:SimpleArrayData>");
+  }
+
+  /**
+   * Writes a placemark.
+   *
+   * @param name the name of the placemark
+   * @param description the description
+   * @param styleName the style name
+   * @param location the location
+   */
+  private void writePlacemark(
+      String name, String description, String styleName, Location location) {
+    if (location != null) {
+      printWriter.println("<Placemark>");
+      printWriter.println(
+          "<description>" + StringUtils.formatCData(description) + "</description>");
+      printWriter.println("<name>" + StringUtils.formatCData(name) + "</name>");
+      printWriter.println("<styleUrl>#" + styleName + "</styleUrl>");
+      printWriter.println("<Point>");
+      printWriter.println(
+          "<coordinates>" + location.getLongitude() + "," + location.getLatitude() + ","
+              + location.getAltitude() + "</coordinates>");
+      printWriter.println("</Point>");
+      printWriter.println("</Placemark>");
+    }
+  }
+
+  /**
+   * Writes the track style.
+   */
+  private void writeTrackStyle() {
+    printWriter.println("<Style id=\"" + TRACK_STYLE + "\">");
+    printWriter.println("<LineStyle><color>7f0000ff</color><width>4</width></LineStyle>");
+    printWriter.println("<IconStyle>");
+    printWriter.println("<scale>1.3</scale>");
+    printWriter.println("<Icon><href>" + TRACK_ICON + "</href></Icon>");
+    printWriter.println("</IconStyle>");
+    printWriter.println("</Style>");
+  }
+
+  /**
+   * Writes a placemarker style.
+   *
+   * @param name the name of the style
+   * @param url the url of the style icon
+   * @param x the x position of the hotspot
+   * @param y the y position of the hotspot
+   */
+  private void writePlacemarkerStyle(String name, String url, int x, int y) {
+    printWriter.println("<Style id=\"" + name + "\"><IconStyle>");
+    printWriter.println("<scale>1.3</scale>");
+    printWriter.println("<Icon><href>" + url + "</href></Icon>");
+    printWriter.println(
+        "<hotSpot x=\"" + x + "\" y=\"" + y + "\" xunits=\"pixels\" yunits=\"pixels\"/>");
+    printWriter.println("</IconStyle></Style>");
+  }
+
+  /**
+   * Writes a sensor style.
+   *
+   * @param name the name of the sesnor
+   * @param displayName the sensor display name
+   */
+  private void writeSensorStyle(String name, String displayName) {
+    printWriter.println("<gx:SimpleArrayField name=\"" + name + "\" type=\"int\">");
+    printWriter.println(
+        "<displayName>" + StringUtils.formatCData(displayName) + "</displayName>");
+    printWriter.println("</gx:SimpleArrayField>");
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/SaveActivity.java

@@ -0,0 +1,203 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.file;
+
+import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+
+import java.io.File;
+
+/**
+ * An activity for saving tracks to the SD card. If saving a specific track,
+ * option to save it to a temp directory and play the track afterward.
+ * 
+ * @author Rodrigo Damazio
+ */
+public class SaveActivity extends Activity {
+
+  public static final String EXTRA_TRACK_FILE_FORMAT = "track_file_format";
+  public static final String EXTRA_TRACK_ID = "track_id";
+  public static final String EXTRA_PLAY_TRACK = "play_track";
+
+  public static final String GOOGLE_EARTH_KML_MIME_TYPE = "application/vnd.google-earth.kml+xml";
+  public static final String GOOGLE_EARTH_PACKAGE = "com.google.earth";
+  public static final String GOOGLE_EARTH_MARKET_URL = "market://details?id="
+      + GOOGLE_EARTH_PACKAGE;
+  private static final String
+      GOOGLE_EARTH_TOUR_FEATURE_ID = "com.google.earth.EXTRA.tour_feature_id";
+  private static final String GOOGLE_EARTH_CLASS = "com.google.earth.EarthActivity";
+
+  private static final int DIALOG_PROGRESS_ID = 0;
+  private static final int DIALOG_RESULT_ID = 1;
+
+  private TrackFileFormat trackFileFormat;
+  private long trackId;
+  private boolean playTrack;
+
+  private SaveAsyncTask saveAsyncTask;
+  private ProgressDialog progressDialog;
+
+  // result from the AsyncTask
+  private boolean success;
+  
+  // message id from the AsyncTask
+  private int messageId;
+  
+  // saved file path from the AsyncTask
+  private String savedPath;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    Intent intent = getIntent();
+    trackFileFormat = intent.getParcelableExtra(EXTRA_TRACK_FILE_FORMAT);
+    trackId = intent.getLongExtra(EXTRA_TRACK_ID, -1L);
+    playTrack = intent.getBooleanExtra(EXTRA_PLAY_TRACK, false);
+
+    Object retained = getLastNonConfigurationInstance();
+    if (retained instanceof SaveAsyncTask) {
+      saveAsyncTask = (SaveAsyncTask) retained;
+      saveAsyncTask.setActivity(this);
+    } else {
+      saveAsyncTask = new SaveAsyncTask(this, trackFileFormat, trackId, playTrack);
+      saveAsyncTask.execute();
+    }
+  }
+
+  @Override
+  public Object onRetainNonConfigurationInstance() {
+    saveAsyncTask.setActivity(null);
+    return saveAsyncTask;
+  }
+
+  @Override
+  protected Dialog onCreateDialog(int id) {
+    switch (id) {
+      case DIALOG_PROGRESS_ID:
+        progressDialog = DialogUtils.createHorizontalProgressDialog(
+            this, R.string.sd_card_save_progress_message, new DialogInterface.OnCancelListener() {
+              @Override
+              public void onCancel(DialogInterface dialog) {
+                saveAsyncTask.cancel(true);
+                finish();
+              }
+            });
+        return progressDialog;
+      case DIALOG_RESULT_ID:
+        AlertDialog.Builder builder = new AlertDialog.Builder(this)
+            .setCancelable(true)
+            .setIcon(success 
+                ? android.R.drawable.ic_dialog_info : android.R.drawable.ic_dialog_alert)
+            .setMessage(messageId)
+            .setOnCancelListener(new DialogInterface.OnCancelListener() {
+              @Override
+              public void onCancel(DialogInterface dialog) {
+                dialog.dismiss();
+                onPostResultDialog();
+              }
+            })
+            .setPositiveButton(R.string.generic_ok, new DialogInterface.OnClickListener() {
+              @Override
+              public void onClick(DialogInterface dialog, int arg1) {
+                dialog.dismiss();
+                onPostResultDialog();
+              }
+            })
+            .setTitle(success ? R.string.generic_success_title : R.string.generic_error_title);
+
+        if (success && trackId != -1L && !playTrack) {
+          builder.setNegativeButton(
+              R.string.share_track_share_file, new DialogInterface.OnClickListener() {
+                  @Override
+                public void onClick(DialogInterface dialog, int which) {
+                  Intent intent = IntentUtils.newShareFileIntent(
+                      SaveActivity.this, trackId, savedPath, trackFileFormat);
+                  startActivity(
+                      Intent.createChooser(intent, getString(R.string.share_track_picker_title)));
+                  finish();
+                }
+              });
+        }
+        return builder.create();
+      default:
+        return null;
+    }
+  }
+
+  /**
+   * Invokes when the associated AsyncTask completes.
+   *
+   * @param isSuccess true if the AsyncTask is successful
+   * @param aMessageId the id of the AsyncTask message
+   * @param aSavedPath the path of the saved file
+   */
+  public void onAsyncTaskCompleted(boolean isSuccess, int aMessageId, String aSavedPath) {
+    this.success = isSuccess;
+    this.messageId = aMessageId;
+    this.savedPath = aSavedPath;
+    removeDialog(DIALOG_PROGRESS_ID);
+    showDialog(DIALOG_RESULT_ID);
+  }
+
+  /**
+   * Shows the progress dialog.
+   */
+  public void showProgressDialog() {
+    showDialog(DIALOG_PROGRESS_ID);
+  }
+
+  /**
+   * Sets the progress dialog value.
+   *
+   * @param number the number of points saved
+   * @param max the maximum number of points
+   */
+  public void setProgressDialogValue(int number, int max) {
+    if (progressDialog != null) {
+      progressDialog.setIndeterminate(false);
+      progressDialog.setMax(max);
+      progressDialog.setProgress(Math.min(number, max));
+    }
+  }
+
+  /**
+   * To be invoked after showing the result dialog.
+   */
+  private void onPostResultDialog() {
+    if (success && playTrack) {
+      Intent intent = new Intent()
+          .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK)
+          .putExtra(GOOGLE_EARTH_TOUR_FEATURE_ID, KmlTrackWriter.TOUR_FEATURE_ID)
+          .setClassName(GOOGLE_EARTH_PACKAGE, GOOGLE_EARTH_CLASS)
+          .setDataAndType(Uri.fromFile(new File(savedPath)), GOOGLE_EARTH_KML_MIME_TYPE);
+      startActivity(intent);
+    }
+    finish();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/SaveAsyncTask.java

@@ -0,0 +1,222 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.file;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.TracksColumns;
+import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.apps.mytracks.util.FileUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.SystemUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.os.AsyncTask;
+import android.os.PowerManager.WakeLock;
+import android.util.Log;
+
+import java.io.File;
+
+/**
+ * Async Task to save tracks to the SD card.
+ * 
+ * @author Jimmy Shih
+ */
+public class SaveAsyncTask extends AsyncTask<Void, Integer, Boolean> {
+
+  private static final String TAG = SaveAsyncTask.class.getSimpleName();
+
+  private SaveActivity saveActivity;
+  private final TrackFileFormat trackFileFormat;
+  private final long trackId;
+  private final boolean useTempDir;
+
+  private final Context context;
+  private final MyTracksProviderUtils myTracksProviderUtils;
+  private WakeLock wakeLock;
+  private TrackWriter trackWriter;
+
+  // true if the AsyncTask result is success
+  private boolean success;
+
+  // true if the AsyncTask has completed
+  private boolean completed;
+
+  // message id to return to the activity
+  private int messageId;
+
+  // saved file path to return to the activity
+  private String savedPath;
+
+  /**
+   * Creates an AsyncTask.
+   * 
+   * @param saveActivity the activity currently associated with this task.
+   * @param trackFileFormat the track format
+   * @param trackId the track id
+   * @param useTempDir true to use the temp directory
+   */
+  public SaveAsyncTask(SaveActivity saveActivity, TrackFileFormat trackFileFormat, long trackId,
+      boolean useTempDir) {
+    this.saveActivity = saveActivity;
+    this.trackFileFormat = trackFileFormat;
+    this.trackId = trackId;
+    this.useTempDir = useTempDir;
+    context = saveActivity.getApplicationContext();
+    
+    myTracksProviderUtils = MyTracksProviderUtils.Factory.get(saveActivity);
+
+    // Get the wake lock if not recording
+    if (PreferencesUtils.getLong(saveActivity, R.string.recording_track_id_key)
+        == PreferencesUtils.RECORDING_TRACK_ID_DEFAULT) {
+      wakeLock = SystemUtils.acquireWakeLock(saveActivity, wakeLock);
+    }
+    
+    trackWriter = null;
+    success = false;
+    completed = false;
+    messageId = R.string.sd_card_save_error;
+    savedPath = null;
+  }
+
+  /**
+   * Sets the current activity associated with this AyncTask.
+   * 
+   * @param saveActivity the current activity, can be null
+   */
+  public void setActivity(SaveActivity saveActivity) {
+    this.saveActivity = saveActivity;
+    if (completed && saveActivity != null) {
+      saveActivity.onAsyncTaskCompleted(success, messageId, savedPath);
+    }
+  }
+
+  @Override
+  protected void onPreExecute() {
+    if (saveActivity != null) {
+      saveActivity.showProgressDialog();
+    }
+  }
+
+  @Override
+  protected Boolean doInBackground(Void... params) {
+    try {
+      if (trackId != -1L) {
+        return saveOneTrack(trackId, true);
+      } else {
+        return saveAllTracks();
+      }
+    } finally {
+      // Release the wake lock if obtained
+      if (wakeLock != null && wakeLock.isHeld()) {
+        wakeLock.release();
+      }
+    }
+  }
+
+  /**
+   * Saves one track.
+   * 
+   * @param id the track id
+   * @param updateSavingProgress true to update the saving progress
+   */
+  private Boolean saveOneTrack(long id, final boolean updateSavingProgress) {
+    trackWriter = TrackWriterFactory.newWriter(
+        context, myTracksProviderUtils, id, trackFileFormat);
+    if (trackWriter == null) {
+      Log.e(TAG, "Track writer is null");
+      return false;
+    }
+    if (useTempDir) {
+      String dirName = FileUtils.buildExternalDirectoryPath(trackFileFormat.getExtension(), "tmp");
+      trackWriter.setDirectory(new File(dirName));
+    }
+    trackWriter.setOnWriteListener(new TrackWriter.OnWriteListener() {
+        @Override
+      public void onWrite(int number, int max) {
+        // Update the progress dialog once every 500 points
+        if (updateSavingProgress && number % 500 == 0) {
+          publishProgress(number, max);
+        }
+      }
+    });
+    trackWriter.writeTrack();
+    messageId = trackWriter.getErrorMessage();
+    savedPath = trackWriter.getAbsolutePath();
+    return trackWriter.wasSuccess();
+  }
+
+  /**
+   * Saves all the tracks.
+   */
+  private Boolean saveAllTracks() {
+    Cursor cursor = null;
+    try {
+      cursor = myTracksProviderUtils.getTracksCursor(null, null, TracksColumns._ID);
+      if (cursor == null) {
+        messageId = R.string.sd_card_save_error_no_track;
+        return false;
+      }
+      int count = cursor.getCount();
+      if (count == 0) {
+        messageId = R.string.sd_card_save_error_no_track;
+        return false;
+      }
+      int idIndex = cursor.getColumnIndexOrThrow(TracksColumns._ID);
+      for (int i = 0; i < count; i++) {
+        if (isCancelled()) {
+          return false;
+        }
+        cursor.moveToPosition(i);
+        long id = cursor.getLong(idIndex);
+        if (!saveOneTrack(id, false)) {
+          return false;
+        }        
+        publishProgress(i + 1, count);
+      }
+      messageId = R.string.sd_card_save_success;
+      return true;
+    } finally {
+      if (cursor != null) {
+        cursor.close();
+      }
+    }
+  }
+  @Override
+  protected void onProgressUpdate(Integer... values) {
+    if (saveActivity != null) {
+      saveActivity.setProgressDialogValue(values[0], values[1]);
+    }
+  }
+
+  @Override
+  protected void onPostExecute(Boolean result) {
+    success = result;
+    completed = true;
+    if (saveActivity != null) {
+      saveActivity.onAsyncTaskCompleted(success, messageId, savedPath);
+    }
+  }
+
+  @Override
+  protected void onCancelled() {
+    if (trackWriter != null) {
+      trackWriter.stopWriteTrack();
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/TcxTrackWriter.java

@@ -0,0 +1,329 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.file;
+
+import com.google.android.apps.mytracks.content.MyTracksLocation;
+import com.google.android.apps.mytracks.content.Sensor;
+import com.google.android.apps.mytracks.content.Sensor.SensorDataSet;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.apps.mytracks.lib.R;
+import com.google.android.apps.mytracks.util.StringUtils;
+import com.google.android.apps.mytracks.util.SystemUtils;
+
+import android.content.Context;
+import android.location.Location;
+
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.util.Locale;
+
+/**
+ * Write track as TCX to a file. See http://developer.garmin.com/schemas/tcx/v2/
+ * for info on TCX. <br>
+ * The TCX file output is verified by uploading the file to
+ * http://connect.garmin.com/.
+ *
+ * @author Sandor Dornbush
+ * @author Dominik Ršttsches
+ */
+public class TcxTrackWriter implements TrackFormatWriter {
+
+  /**
+   * TCX sport type. See the TCX spec.
+   *
+   * @author Jimmy Shih
+   */
+  private enum SportType {
+    RUNNING("Running"),
+    BIKING("Biking"),
+    OTHER("Other");
+
+    private final String name;
+
+    private SportType(String name) {
+      this.name = name;
+    }
+
+    /**
+     * Gets the name of the sport type
+     */
+    public String getName() {
+      return name;
+    }
+  }
+
+  // My Tracks categories that are considered as TCX biking sport type.
+  private static final int TCX_SPORT_BIKING_IDS[] = {
+      R.string.activity_type_cycling,
+      R.string.activity_type_dirt_bike,
+      R.string.activity_type_mountain_biking,
+      R.string.activity_type_road_biking,
+      R.string.activity_type_track_cycling };
+
+  // My Tracks categories that are considered as TCX running sport type.
+  private static final int TCX_SPORT_RUNNING_IDS[] = {
+      R.string.activity_type_running,
+      R.string.activity_type_speed_walking,
+      R.string.activity_type_street_running,
+      R.string.activity_type_track_running,
+      R.string.activity_type_trail_running,
+      R.string.activity_type_walking };
+
+  private final Context context;
+  private Track track;
+  private PrintWriter printWriter;
+  private SportType sportType;
+
+  public TcxTrackWriter(Context context) {
+    this.context = context;
+  }
+
+  @Override
+  public void prepare(Track aTrack, OutputStream out) {
+    this.track = aTrack;
+    this.printWriter = new PrintWriter(out);
+    this.sportType = getSportType(track.getCategory());
+  }
+
+  @Override
+  public void close() {
+    if (printWriter != null) {
+      printWriter.close();
+      printWriter = null;
+    }
+  }
+
+  @Override
+  public String getExtension() {
+    return TrackFileFormat.TCX.getExtension();
+  }
+
+  @Override
+  public void writeHeader() {
+    if (printWriter != null) {
+      printWriter.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+      printWriter.println("<TrainingCenterDatabase"
+          + " xmlns=\"http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2\"");
+      printWriter.println("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"");
+      printWriter.println("xsi:schemaLocation=" 
+          + "\"http://www.garmin.com/xmlschemas/TrainingCenterDatabase/v2"
+          + " http://www.garmin.com/xmlschemas/TrainingCenterDatabasev2.xsd\">");
+    }
+  }
+
+  @Override
+  public void writeFooter() {
+    if (printWriter != null) {
+      printWriter.println("<Author xsi:type=\"Application_t\">");
+      printWriter.println("<Name>" 
+          + StringUtils.formatCData(context.getString(R.string.send_google_by_my_tracks, "", "")) 
+          + "</Name>");
+      // <Build>, <LangID>, and <PartNumber> are required by type=Application_t.
+      printWriter.println("<Build>");
+      writeVersion();
+      printWriter.println("</Build>");
+      printWriter.println("<LangID>" + Locale.getDefault().getLanguage() + "</LangID>");
+      printWriter.println("<PartNumber>000-00000-00</PartNumber>");
+      printWriter.println("</Author>");
+      printWriter.println("</TrainingCenterDatabase>");
+    }
+  }
+
+  @Override
+  public void writeBeginTrack(Location firstPoint) {
+    if (printWriter != null) {
+      String startTime = StringUtils.formatDateTimeIso8601(
+          track.getTripStatistics().getStartTime());
+      long totalTimeInSeconds = track.getTripStatistics().getTotalTime() / 1000;
+
+      printWriter.println("<Activities>");
+      printWriter.println("<Activity Sport=\"" + sportType.getName() + "\">");
+      printWriter.println("<Id>" + startTime + "</Id>");
+      printWriter.println("<Lap StartTime=\"" + startTime + "\">");
+      printWriter.println("<TotalTimeSeconds>" + totalTimeInSeconds + "</TotalTimeSeconds>");
+      printWriter.println("<DistanceMeters>" + track.getTripStatistics().getTotalDistance()
+          + "</DistanceMeters>");
+      // <Calories> is required, just put in 0.
+      printWriter.println("<Calories>0</Calories>");
+      printWriter.println("<Intensity>Active</Intensity>");
+      printWriter.println("<TriggerMethod>Manual</TriggerMethod>");
+    }
+  }
+
+  @Override
+  public void writeEndTrack(Location lastPoint) {
+    if (printWriter != null) {
+      printWriter.println("</Lap>");
+      printWriter.println("<Creator xsi:type=\"Device_t\">");
+      printWriter.println("<Name>" 
+          + StringUtils.formatCData(context.getString(R.string.send_google_by_my_tracks, "", "")) 
+          + "</Name>");
+      // <UnitId>, <ProductID>, and <Version> are required for type=Device_t.
+      printWriter.println("<UnitId>0</UnitId>");
+      printWriter.println("<ProductID>0</ProductID>");
+      writeVersion();
+      printWriter.println("</Creator>");
+      printWriter.println("</Activity>");
+      printWriter.println("</Activities>");
+    }
+  }
+
+  @Override
+  public void writeOpenSegment() {
+    if (printWriter != null) {
+      printWriter.println("<Track>");
+    }
+  }
+
+  @Override
+  public void writeCloseSegment() {
+    if (printWriter != null) {
+      printWriter.println("</Track>");
+    }
+  }
+
+  @Override
+  public void writeLocation(Location location) {
+    if (printWriter != null) {
+      printWriter.println("<Trackpoint>");
+      printWriter.println("<Time>" + StringUtils.formatDateTimeIso8601(location.getTime()) + "</Time>");
+      printWriter.println("<Position>");
+      printWriter.println("<LatitudeDegrees>" + location.getLatitude() + "</LatitudeDegrees>");
+      printWriter.println("<LongitudeDegrees>" + location.getLongitude() + "</LongitudeDegrees>");
+      printWriter.println("</Position>");
+      printWriter.println("<AltitudeMeters>" + location.getAltitude() + "</AltitudeMeters>");
+
+      if (location instanceof MyTracksLocation) {
+        SensorDataSet sensorDataSet = ((MyTracksLocation) location).getSensorDataSet();
+        if (sensorDataSet != null) {
+          boolean heartRateAvailable = sensorDataSet.hasHeartRate()
+              && sensorDataSet.getHeartRate().hasValue()
+              && sensorDataSet.getHeartRate().getState() == Sensor.SensorState.SENDING;
+          boolean cadenceAvailable = sensorDataSet.hasCadence()
+            && sensorDataSet.getCadence().hasValue()
+            && sensorDataSet.getCadence().getState() == Sensor.SensorState.SENDING;
+          boolean powerAvailable = sensorDataSet.hasPower() 
+            && sensorDataSet.getPower().hasValue()
+            && sensorDataSet.getPower().getState() == Sensor.SensorState.SENDING;
+          
+          if (heartRateAvailable) {
+            printWriter.println("<HeartRateBpm>");
+            printWriter.println("<Value>" + sensorDataSet.getHeartRate().getValue() + "</Value>");
+            printWriter.println("</HeartRateBpm>");
+          }
+
+          // <Cadence> needs to be put before <Extensions>.
+          // According to the TCX spec, <Cadence> is only for the biking sport
+          // type. For others, use <RunCadence> in <Extensions>.
+          if (cadenceAvailable && sportType == SportType.BIKING) {
+            // The spec requires the max value be 254.
+            printWriter.println(
+                "<Cadence>" + Math.min(254, sensorDataSet.getCadence().getValue()) + "</Cadence>");
+          }
+
+          if ((cadenceAvailable && sportType != SportType.BIKING) || powerAvailable) {
+            printWriter.println("<Extensions>");
+            printWriter.println(
+                "<TPX xmlns=\"http://www.garmin.com/xmlschemas/ActivityExtension/v2\">");
+
+            // <RunCadence> needs to be put before <Watts>.
+            if (cadenceAvailable && sportType != SportType.BIKING) {
+              // The spec requires the max value to be 254.
+              printWriter.println("<RunCadence>"
+                  + Math.min(254, sensorDataSet.getCadence().getValue()) + "</RunCadence>");
+            }
+
+            if (powerAvailable) {
+              printWriter.println("<Watts>" + sensorDataSet.getPower().getValue() + "</Watts>");
+            }
+            printWriter.println("</TPX>");
+            printWriter.println("</Extensions>");
+          }
+        }
+      }
+      printWriter.println("</Trackpoint>");
+    }
+  }
+
+  @Override
+  public void writeBeginWaypoints() {
+    // Do nothing.
+  }
+
+  @Override
+  public void writeEndWaypoints() {
+    // Do nothing.
+  }
+
+  @Override
+  public void writeWaypoint(Waypoint waypoint) {
+    // Do nothing.
+  }
+
+  /**
+   * Writes the TCX Version.
+   */
+  private void writeVersion() {
+    // Split the My Tracks version code into VersionMajor, VersionMinor, and,
+    // BuildMajor to fit the integer type requirement for these fields in the
+    // TCX spec.
+    String[] versionComponents = SystemUtils.getMyTracksVersion(context).split("\\.");
+    int versionMajor = versionComponents.length > 0 ? Integer.valueOf(versionComponents[0]) : 0;
+    int versionMinor = versionComponents.length > 1 ? Integer.valueOf(versionComponents[1]) : 0;
+    int buildMajor = versionComponents.length > 2 ? Integer.valueOf(versionComponents[2]) : 0;
+
+    printWriter.println("<Version>");
+    printWriter.println("<VersionMajor>" + versionMajor + "</VersionMajor>");
+    printWriter.println("<VersionMinor>" + versionMinor + "</VersionMinor>");
+    // According to TCX spec, these are optional. But http://connect.garmin.com
+    // requires them.
+    printWriter.println("<BuildMajor>" + buildMajor + "</BuildMajor>");
+    printWriter.println("<BuildMinor>0</BuildMinor>");
+    printWriter.println("</Version>");
+  }
+
+  /**
+   * Gets the sport type from the category.
+   *
+   * @param category the category
+   */
+  private SportType getSportType(String category) {
+    category = category.trim();
+
+    // For tracks with localized category.
+    for (int i : TCX_SPORT_RUNNING_IDS) {
+      if (category.equalsIgnoreCase(context.getString(i))) {
+        return SportType.RUNNING;
+      }
+    }
+    for (int i : TCX_SPORT_BIKING_IDS) {
+      if (category.equalsIgnoreCase(context.getString(i))) {
+        return SportType.BIKING;
+      }
+    }
+
+    // For tracks without localized category.
+    if (category.equalsIgnoreCase(SportType.RUNNING.getName())) {
+      return SportType.RUNNING;
+    } else if (category.equalsIgnoreCase(SportType.BIKING.getName())) {
+      return SportType.BIKING;
+    } else {
+      return SportType.OTHER;
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/TrackFormatWriter.java

@@ -0,0 +1,126 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.file;
+
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+
+import android.location.Location;
+
+import java.io.OutputStream;
+
+/**
+ * Interface for writing a track to file.
+ *
+ * The expected sequence of calls is:
+ * <ol>
+ *   <li>{@link #prepare}
+ *   <li>{@link #writeHeader}
+ *   <li>{@link #writeBeginWaypoints}
+ *   <li>For each waypoint: {@link #writeWaypoint}
+ *   <li>{@link #writeEndWaypoints}
+ *   <li>{@link #writeBeginTrack}
+ *   <li>For each segment:
+ *   <ol>
+ *     <li>{@link #writeOpenSegment}
+ *     <li>For each location in the segment: {@link #writeLocation}
+ *     <li>{@link #writeCloseSegment}
+ *   </ol>
+ *   <li>{@link #writeEndTrack}
+ *   <li>{@link #writeFooter}
+ *   <li>{@link #close}
+ * </ol>
+ *
+ * @author Rodrigo Damazio
+ */
+public interface TrackFormatWriter {
+
+  /**
+   * Gets the file extension (i.e. gpx, kml, ...)
+   */
+  public String getExtension();
+
+  /**
+   * Sets up the writer to write the given track.
+   *
+   * @param track the track to write
+   * @param outputStream the output stream to write the track to
+   */
+  public void prepare(Track track, OutputStream outputStream);
+
+  /**
+   * Closes the underlying file handler.
+   */
+  public void close();
+
+  /**
+   * Writes the header.
+   */
+  public void writeHeader();
+
+  /**
+   * Writes the footer.
+   */
+  public void writeFooter();
+
+  /**
+   * Writes the beginning of the waypoints.
+   */
+  public void writeBeginWaypoints();
+  
+  /**
+   * Writes the end of the waypoints.
+   */
+  public void writeEndWaypoints();
+  
+  /**
+   * Writes a waypoint.
+   *
+   * @param waypoint the waypoint
+   */
+  public void writeWaypoint(Waypoint waypoint);
+
+  /**
+   * Writes the beginning of the track.
+   * 
+   * @param firstLocation the first location
+   */
+  public void writeBeginTrack(Location firstLocation);
+
+  /**
+   * Writes the end of the track.
+   * 
+   * @param lastLocation the last location
+   */
+  public void writeEndTrack(Location lastLocation);
+
+  /**
+   * Writes the statements necessary to open a new segment.
+   */
+  public void writeOpenSegment();
+
+  /**
+   * Writes the statements necessary to close a segment.
+   */
+  public void writeCloseSegment();
+
+  /**
+   * Writes a location.
+   *
+   * @param location the location
+   */
+  public void writeLocation(Location location);
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/TrackWriter.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.file;
+
+import java.io.File;
+
+/**
+ * Implementations of this class export tracks to the SD card.  This class is
+ * intended to be format-neutral - it handles creating the output file and
+ * reading the track to be exported, but requires an instance of
+ * {@link TrackFormatWriter} to actually format the data.
+ *
+ * @author Sandor Dornbush
+ * @author Rodrigo Damazio
+ */
+public interface TrackWriter {
+
+  /** This listener is used to signal track writes. */
+  public interface OnWriteListener {
+    /**
+     * This method is invoked whenever a location within a track is written.
+     * @param number the location number
+     * @param max the maximum number of locations, for calculation of
+     *     completion percentage
+     */
+    public void onWrite(int number, int max);
+  }
+
+  /**
+   * Sets a listener to be invoked for each location writer.
+   */
+  void setOnWriteListener(OnWriteListener onWriteListener);
+
+  /**
+   * Sets a custom directory where the file will be written.
+   */
+  void setDirectory(File directory);
+
+  /**
+   * Returns the absolute path to the file which was created.
+   */
+  String getAbsolutePath();
+
+  /**
+   * Writes the given track id to the SD card.
+   * This is blocking.
+   */
+  void writeTrack();
+
+  /**
+   * Stop any in-progress writes
+   */
+  void stopWriteTrack();
+
+  /**
+   * Returns true if the write completed successfully.
+   */
+  boolean wasSuccess();
+
+  /**
+   * Returns the error message (if any) generated by a writer failure.
+   */
+  int getErrorMessage();
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/TrackWriterFactory.java

@@ -0,0 +1,145 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.file;
+
+import static com.google.android.apps.mytracks.Constants.TAG;
+
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Track;
+
+import android.content.Context;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.util.Log;
+
+/**
+ * A factory to produce track writers for any format.
+ *
+ * @author Rodrigo Damazio
+ */
+public class TrackWriterFactory {
+
+  /**
+   * Definition of all possible track formats.
+   */
+  public enum TrackFileFormat implements Parcelable {
+    GPX {
+      @Override
+      TrackFormatWriter newFormatWriter(Context context) {
+        return new GpxTrackWriter(context);
+      }
+    },
+    KML {
+      @Override
+      TrackFormatWriter newFormatWriter(Context context) {
+        return new KmlTrackWriter(context);
+      }
+    },
+    CSV {
+      @Override
+      public TrackFormatWriter newFormatWriter(Context context) {
+        return new CsvTrackWriter(context);
+      }
+    },
+    TCX {
+      @Override
+      public TrackFormatWriter newFormatWriter(Context context) {
+        return new TcxTrackWriter(context);
+      }
+    };
+
+    @Override
+    public int describeContents() {
+      return 0;
+    }
+
+    @Override
+    public void writeToParcel(final Parcel dest, final int flags) {
+      dest.writeInt(ordinal());
+    }
+
+    public static final Creator<TrackFileFormat> CREATOR = new Creator<TrackFileFormat>() {
+      @Override
+      public TrackFileFormat createFromParcel(final Parcel source) {
+        return TrackFileFormat.values()[source.readInt()];
+      }
+
+      @Override
+      public TrackFileFormat[] newArray(final int size) {
+        return new TrackFileFormat[size];
+      }
+    };
+
+    /**
+     * Creates and returns a new format writer for each format.
+     */
+    abstract TrackFormatWriter newFormatWriter(Context context);
+
+    /**
+     * Returns the mime type for each format.
+     */
+    public String getMimeType() {
+      return "application/" + getExtension() + "+xml";
+    }
+
+    /**
+     * Returns the file extension for each format.
+     */
+    public String getExtension() {
+      return this.name().toLowerCase();
+    }
+  }
+
+  /**
+   * Creates a new track writer to write the track with the given ID.
+   *
+   * @param context the context in which the track will be read
+   * @param providerUtils the data provider utils to read the track with
+   * @param trackId the ID of the track to be written
+   * @param format the output format to write in
+   * @return the new track writer
+   */
+  public static TrackWriter newWriter(Context context,
+      MyTracksProviderUtils providerUtils,
+      long trackId, TrackFileFormat format) {
+    Track track = providerUtils.getTrack(trackId);
+    if (track == null) {
+      Log.d(TAG, "No track for " + trackId);
+      return null;
+    }
+
+    return newWriter(context, providerUtils, track, format);
+  }
+
+  /**
+   * Creates a new track writer to write the given track.
+   *
+   * @param context the context in which the track will be read
+   * @param providerUtils the data provider utils to read the track with
+   * @param track the track to be written
+   * @param format the output format to write in
+   * @return the new track writer
+   */
+  private static TrackWriter newWriter(Context context,
+      MyTracksProviderUtils providerUtils,
+      Track track, TrackFileFormat format) {
+    TrackFormatWriter writer = format.newFormatWriter(context);
+    return new TrackWriterImpl(context, providerUtils, track, writer);
+  }
+
+  private TrackWriterFactory() { }
+}

MyTracks/src/com/google/android/apps/mytracks/io/file/TrackWriterImpl.java

@@ -0,0 +1,379 @@
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.file;
+
+import static com.google.android.apps.mytracks.Constants.TAG;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.content.MyTracksLocation;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils.LocationIterator;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.util.FileUtils;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.content.Context;
+import android.database.Cursor;
+import android.location.Location;
+import android.util.Log;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.OutputStream;
+
+/**
+ * This class exports tracks to the SD card.  It is intended to be format-
+ * neutral -- it handles creating the output file and reading the track to be
+ * exported, but requires an instance of {@link TrackFormatWriter} to actually
+ * format the data.
+ *
+ * @author Sandor Dornbush
+ * @author Rodrigo Damazio
+ */
+class TrackWriterImpl implements TrackWriter {
+  private final Context context;
+  private final MyTracksProviderUtils providerUtils;
+  private final Track track;
+  private final TrackFormatWriter writer;
+  private boolean success = false;
+  private int errorMessage = R.string.sd_card_save_error;
+  private File directory = null;
+  private File file = null;
+  private OnWriteListener onWriteListener;
+  private Thread writeThread;
+
+  TrackWriterImpl(Context context, MyTracksProviderUtils providerUtils,
+      Track track, TrackFormatWriter writer) {
+    this.context = context;
+    this.providerUtils = providerUtils;
+    this.track = track;
+    this.writer = writer;
+  }
+
+  @Override
+  public void setOnWriteListener(OnWriteListener onWriteListener) {
+    this.onWriteListener = onWriteListener;
+  }
+
+  @Override
+  public void setDirectory(File directory) {
+    this.directory = directory;
+  }
+
+  @Override
+  public String getAbsolutePath() {
+    return file.getAbsolutePath();
+  }
+
+  private void writeTrackAsync() {
+    writeThread = new Thread() {
+      @Override
+      public void run() {
+        doWriteTrack();
+      }
+    };
+    writeThread.start();
+  }
+
+  @Override
+  public void writeTrack() {
+    writeTrackAsync();
+    try {
+      writeThread.join();
+    } catch (InterruptedException e) {
+      Log.e(Constants.TAG, "Interrupted waiting for write to complete", e);
+    }
+  }
+
+  private void doWriteTrack() {
+    // Open the input and output
+    success = false;
+    errorMessage = R.string.sd_card_save_error;
+    if (track != null) {
+      if (openFile()) {
+        try {
+          writeDocument();
+        } catch (InterruptedException e) {
+          Log.i(Constants.TAG, "The track write was interrupted");
+          if (file != null) {
+            if (!file.delete()) {
+              Log.w(TAG, "Failed to delete file " + file.getAbsolutePath());
+            }
+          }
+          success = false;
+          errorMessage = R.string.sd_card_canceled;
+        }
+      }
+    }
+  }
+
+  public void stopWriteTrack() {
+    if (writeThread != null && writeThread.isAlive()) {
+      Log.i(Constants.TAG, "Attempting to stop track write");
+      writeThread.interrupt();
+
+      try {
+        writeThread.join();
+        Log.i(Constants.TAG, "Track write stopped");
+      } catch (InterruptedException e) {
+        Log.e(Constants.TAG, "Failed to wait for writer to stop", e);
+      }
+    }
+  }
+
+  @Override
+  public int getErrorMessage() {
+    return errorMessage;
+  }
+
+  @Override
+  public boolean wasSuccess() {
+    return success;
+  }
+
+  /*
+   * Helper methods:
+   * ===============
+   */
+
+  /**
+   * Runs the given runnable in the UI thread.
+   */
+  protected void runOnUiThread(Runnable runnable) {
+    if (context instanceof Activity) {
+      ((Activity) context).runOnUiThread(runnable);
+    }
+  }
+
+  /**
+   * Opens the file and prepares the format writer for it.
+   *
+   * @return true on success, false otherwise (and errorMessage is set)
+   */
+  protected boolean openFile() {
+    if (!canWriteFile()) {
+      return false;
+    }
+
+    // Make sure the file doesn't exist yet (possibly by changing the filename)
+    String fileName = FileUtils.buildUniqueFileName(
+        directory, track.getName(), writer.getExtension());
+    if (fileName == null) {
+      Log.e(Constants.TAG,
+          "Unable to get a unique filename for " + track.getName());
+      return false;
+    }
+
+    Log.i(Constants.TAG, "Writing track to: " + fileName);
+    try {
+      writer.prepare(track, newOutputStream(fileName));
+    } catch (FileNotFoundException e) {
+      Log.e(Constants.TAG, "Failed to open output file.", e);
+      errorMessage = R.string.sd_card_save_error;
+      return false;
+    }
+    return true;
+  }
+
+  /**
+   * Checks and returns whether we're ready to create the output file.
+   */
+  protected boolean canWriteFile() {
+    if (directory == null) {
+      String dirName =
+          FileUtils.buildExternalDirectoryPath(writer.getExtension());
+      directory = newFile(dirName);
+    }
+
+    if (!FileUtils.isSdCardAvailable()) {
+      Log.i(Constants.TAG, "Could not find SD card.");
+      errorMessage = R.string.sd_card_error_no_storage;
+      return false;
+    }
+    if (!FileUtils.ensureDirectoryExists(directory)) {
+      Log.i(Constants.TAG, "Could not create export directory.");
+      errorMessage = R.string.sd_card_save_error_create_dir;
+      return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * Creates a new output stream to write to the given filename.
+   *
+   * @throws FileNotFoundException if the file could't be created
+   */
+  protected OutputStream newOutputStream(String fileName)
+      throws FileNotFoundException {
+    file = new File(directory, fileName);
+    return new FileOutputStream(file);
+  }
+
+  /**
+   * Creates a new file object for the given path.
+   */
+  protected File newFile(String path) {
+    return new File(path);
+  }
+
+  /**
+   * Writes the waypoints for the given track.
+   *
+   * @param trackId the ID of the track to write waypoints for
+   */
+  private void writeWaypoints(long trackId) {
+    // TODO: Stream through he waypoints in chunks.
+    // I am leaving the number of waypoints very high which should not be a
+    // problem because we don't try to load them into objects all at the
+    // same time.
+    Cursor cursor = null;
+    cursor = providerUtils.getWaypointsCursor(trackId, 0,
+        Constants.MAX_LOADED_WAYPOINTS_POINTS);
+    boolean hasWaypoints = false;
+    if (cursor != null) {
+      try {
+        if (cursor.moveToFirst()) {
+          // Yes, this will skip the 1st way point and that is intentional
+          // as the 1st points holds the stats for the current/last segment.
+          while (cursor.moveToNext()) {
+            if (!hasWaypoints) {
+              writer.writeBeginWaypoints();
+              hasWaypoints = true;
+            }
+            Waypoint wpt = providerUtils.createWaypoint(cursor);
+            writer.writeWaypoint(wpt);
+          }
+        }
+      } finally {
+        cursor.close();
+      }
+    }
+    if (hasWaypoints) {
+      writer.writeEndWaypoints();
+    }
+  }
+
+  /**
+   * Does the actual work of writing the track to the now open file.
+   */
+  void writeDocument() throws InterruptedException {
+    Log.d(Constants.TAG, "Started writing track.");
+    writer.writeHeader();
+    writeWaypoints(track.getId());
+    writeLocations();
+    writer.writeFooter();
+    writer.close();
+    success = true;
+    Log.d(Constants.TAG, "Done writing track.");
+    errorMessage = R.string.sd_card_save_success;
+  }
+
+  private void writeLocations() throws InterruptedException {
+    boolean wroteFirst = false;
+    boolean segmentOpen = false;
+    boolean isLastValid = false;
+
+    class TrackWriterLocationFactory implements MyTracksProviderUtils.LocationFactory {
+      Location currentLocation;
+      Location lastLocation;
+
+      @Override
+      public Location createLocation() {
+        if (currentLocation == null) {
+          currentLocation = new MyTracksLocation("");
+        }
+        return currentLocation;
+      }
+
+      public void swapLocations() {
+        Location tmpLoc = lastLocation;
+        lastLocation = currentLocation;
+        currentLocation = tmpLoc;
+        if (currentLocation != null) {
+          currentLocation.reset();
+        }
+      }
+    };
+
+    TrackWriterLocationFactory locationFactory = new TrackWriterLocationFactory();
+    LocationIterator it = providerUtils.getLocationIterator(track.getId(), 0, false,
+        locationFactory);
+    try {
+      if (!it.hasNext()) {
+        // Writes an empty track
+        writer.writeBeginTrack(null);
+        writer.writeEndTrack(null);
+        return;
+      }
+      int pointNumber = 0;
+      while (it.hasNext()) {
+        Location loc = it.next();
+        if (Thread.interrupted()) {
+          throw new InterruptedException();
+        }
+
+        pointNumber++;
+
+        boolean isValid = LocationUtils.isValidLocation(loc);
+        boolean validSegment = isValid && isLastValid;
+        if (!wroteFirst && validSegment) {
+          // Found the first two consecutive points which are valid
+          writer.writeBeginTrack(locationFactory.lastLocation);
+          wroteFirst = true;
+        }
+
+        if (validSegment) {
+          if (!segmentOpen) {
+            // Start a segment for this point
+            writer.writeOpenSegment();
+            segmentOpen = true;
+
+            // Write the previous point, which we had previously skipped
+            writer.writeLocation(locationFactory.lastLocation);
+          }
+
+          // Write the current point
+          writer.writeLocation(loc);
+          if (onWriteListener != null) {
+            onWriteListener.onWrite(pointNumber, track.getNumberOfPoints());
+          }
+        } else {
+          if (segmentOpen) {
+            writer.writeCloseSegment();
+            segmentOpen = false;
+          }
+        }
+
+        locationFactory.swapLocations();
+        isLastValid = isValid;
+      }
+      if (segmentOpen) {
+        writer.writeCloseSegment();
+        segmentOpen = false;
+      }
+      if (wroteFirst) {
+        writer.writeEndTrack(locationFactory.lastLocation);
+      }
+    } finally {
+      it.close();
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/fusiontables/SendFusionTablesActivity.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.fusiontables;
+
+import com.google.android.apps.mytracks.io.docs.SendDocsActivity;
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendActivity;
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendAsyncTask;
+import com.google.android.apps.mytracks.io.sendtogoogle.SendRequest;
+import com.google.android.apps.mytracks.io.sendtogoogle.UploadResultActivity;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Intent;
+
+/**
+ * An activity to send a track to Google Fusion Tables.
+ *
+ * @author Jimmy Shih
+ */
+public class SendFusionTablesActivity extends AbstractSendActivity {
+
+  @Override
+  protected AbstractSendAsyncTask createAsyncTask() {
+    return new SendFusionTablesAsyncTask(this, sendRequest.getTrackId(), sendRequest.getAccount());
+  }
+
+  @Override
+  protected String getServiceName() {
+    return getString(R.string.send_google_fusion_tables);
+  }
+
+  @Override
+  protected void startNextActivity(boolean success, boolean isCancel) {
+    sendRequest.setFusionTablesSuccess(success);
+    Class<?> next = getNextClass(sendRequest, isCancel);
+    Intent intent = IntentUtils.newIntent(this, next)
+        .putExtra(SendRequest.SEND_REQUEST_KEY, sendRequest);
+    startActivity(intent);
+    finish();
+  }
+  
+  @VisibleForTesting
+  Class<?> getNextClass(SendRequest request, boolean isCancel) {
+  if (isCancel) {
+        return UploadResultActivity.class;
+      } else {
+        if (request.isSendDocs()) {
+          return SendDocsActivity.class;
+        } else {
+          return UploadResultActivity.class;
+        }
+      }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/fusiontables/SendFusionTablesAsyncTask.java

@@ -0,0 +1,477 @@
+// Copyright 2012 Google Inc. All Rights Reserved.
+
+package com.google.android.apps.mytracks.io.fusiontables;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.content.DescriptionGenerator;
+import com.google.android.apps.mytracks.content.DescriptionGeneratorImpl;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendAsyncTask;
+import com.google.android.apps.mytracks.io.sendtogoogle.SendToGoogleUtils;
+import com.google.android.apps.mytracks.stats.DoubleBuffer;
+import com.google.android.apps.mytracks.stats.TripStatisticsBuilder;
+import com.google.android.apps.mytracks.util.ApiAdapterFactory;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.SystemUtils;
+import com.google.android.apps.mytracks.util.UnitConversions;
+import com.google.android.maps.mytracks.R;
+import com.google.api.client.googleapis.GoogleHeaders;
+import com.google.api.client.googleapis.MethodOverride;
+import com.google.api.client.http.GenericUrl;
+import com.google.api.client.http.HttpRequest;
+import com.google.api.client.http.HttpRequestFactory;
+import com.google.api.client.http.HttpResponse;
+import com.google.api.client.http.HttpTransport;
+import com.google.api.client.http.InputStreamContent;
+import com.google.api.client.util.Strings;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorException;
+import android.accounts.OperationCanceledException;
+import android.content.Context;
+import android.database.Cursor;
+import android.location.Location;
+import android.util.Log;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URLEncoder;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Vector;
+
+/**
+ * AsyncTask to send a track to Google Fusion Tables.
+ *
+ * @author Jimmy Shih
+ */
+public class SendFusionTablesAsyncTask extends AbstractSendAsyncTask {
+
+  @VisibleForTesting
+  public static final String APP_NAME_PREFIX = "Google-MyTracks-";
+  private static final String SQL_KEY = "sql=";
+  @VisibleForTesting
+  public static final String CONTENT_TYPE = "application/x-www-form-urlencoded";
+  @VisibleForTesting
+  public static final String FUSION_TABLES_BASE_URL =
+      "https://www.google.com/fusiontables/api/query";
+  private static final int MAX_POINTS_PER_UPLOAD = 2048;
+  @VisibleForTesting
+  public static final String GDATA_VERSION = "2";
+
+  private static final int PROGRESS_CREATE_TABLE = 0;
+  private static final int PROGRESS_UNLIST_TABLE = 5;
+  private static final int PROGRESS_UPLOAD_DATA_MIN = 10;
+  private static final int PROGRESS_UPLOAD_DATA_MAX = 90;
+  private static final int PROGRESS_UPLOAD_WAYPOINTS = 95;
+  private static final int PROGRESS_COMPLETE = 100;
+
+  // See http://support.google.com/fusiontables/bin/answer.py?hl=en&answer=185991
+  private static final String MARKER_TYPE_START = "large_green";
+  private static final String MARKER_TYPE_END = "large_red";
+  private static final String MARKER_TYPE_WAYPOINT = "large_blue";
+  private static final String MARKER_TYPE_STATISTICS = "large_yellow";
+  
+  private static final String TAG = SendFusionTablesAsyncTask.class.getSimpleName();
+  
+  private final Context context;
+  private final long trackId;
+  private final Account account;
+  private final MyTracksProviderUtils myTracksProviderUtils;
+  private final HttpRequestFactory httpRequestFactory;
+
+  // The following variables are for per upload states
+  private String authToken;
+  private String tableId;
+  int currentSegment;
+
+  public SendFusionTablesAsyncTask(
+      SendFusionTablesActivity activity, long trackId, Account account) {
+    super(activity);
+    this.trackId = trackId;
+    this.account = account;
+
+    context = activity.getApplicationContext();
+    myTracksProviderUtils = MyTracksProviderUtils.Factory.get(context);
+    HttpTransport transport = ApiAdapterFactory.getApiAdapter().getHttpTransport();
+    httpRequestFactory = transport.createRequestFactory(new MethodOverride());
+  }
+
+  @Override
+  protected void closeConnection() {
+    // No action needed for Google Fusion Tables
+  }
+
+  @Override
+  protected void saveResult() {
+    Track track = myTracksProviderUtils.getTrack(trackId);
+    if (track == null) {
+      Log.d(TAG, "No track for " + trackId);
+      return;
+    }
+    track.setTableId(tableId);
+    myTracksProviderUtils.updateTrack(track);
+  }
+
+  @Override
+  protected boolean performTask() {
+    // Reset the per upload states
+    authToken = null;
+    tableId = null;
+    currentSegment = 1;
+
+    try {
+      authToken = AccountManager.get(context).blockingGetAuthToken(
+          account, SendFusionTablesUtils.SERVICE, false);
+    } catch (OperationCanceledException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    } catch (AuthenticatorException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    }
+
+    Track track = myTracksProviderUtils.getTrack(trackId);
+    if (track == null) {
+      Log.d(TAG, "No track for " + trackId);
+      return false;
+    }
+
+    // Create a new table
+    publishProgress(PROGRESS_CREATE_TABLE);
+    if (!createNewTable(track)) {
+      // Retry upload in case the auth token is invalid
+      return retryTask();
+    }
+
+    // Unlist table
+    publishProgress(PROGRESS_UNLIST_TABLE);
+    if (!unlistTable()) {
+      return false;
+    }
+
+    // Upload all the track points plus the start and end markers
+    publishProgress(PROGRESS_UPLOAD_DATA_MIN);
+    if (!uploadAllTrackPoints(track)) {
+      return false;
+    }
+
+    // Upload all the waypoints
+    publishProgress(PROGRESS_UPLOAD_WAYPOINTS);
+    if (!uploadWaypoints()) {
+      return false;
+    }
+
+    publishProgress(PROGRESS_COMPLETE);
+    return true;
+  }
+
+  @Override
+  protected void invalidateToken() {
+    AccountManager.get(context).invalidateAuthToken(Constants.ACCOUNT_TYPE, authToken);
+  }
+
+  /**
+   * Creates a new table.
+   *
+   * @param track the track
+   * @return true if success.
+   */
+  private boolean createNewTable(Track track) {
+    String query = "CREATE TABLE '" + SendFusionTablesUtils.escapeSqlString(track.getName())
+        + "' (name:STRING,description:STRING,geometry:LOCATION,marker:STRING)";
+    return sendQuery(query, true);
+  }
+
+  /**
+   * Unlists a table.
+   *
+   * @return true if success.
+   */
+  private boolean unlistTable() {
+    String query = "UPDATE TABLE " + tableId + " SET VISIBILITY = UNLISTED";
+    return sendQuery(query, false);
+  }
+
+  /**
+   * Uploads all the points in a track.
+   *
+   * @param track the track
+   * @return true if success.
+   */
+  private boolean uploadAllTrackPoints(Track track) {
+    Cursor locationsCursor = null;
+    try {
+      boolean metricUnits = PreferencesUtils.getBoolean(
+          context, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+
+      locationsCursor = myTracksProviderUtils.getLocationsCursor(trackId, 0, -1, false);
+      if (locationsCursor == null) {
+        Log.d(TAG, "Location cursor is null");
+        return false;
+      }
+      int locationsCount = locationsCursor.getCount();
+      List<Location> locations = new ArrayList<Location>(MAX_POINTS_PER_UPLOAD);
+      Location lastLocation = null;
+
+      // For chart server, limit the number of elevation readings to 250.
+      int elevationSamplingFrequency = Math.max(1, (int) (locationsCount / 250.0));
+      TripStatisticsBuilder tripStatisticsBuilder = new TripStatisticsBuilder(
+          track.getTripStatistics().getStartTime());
+      DoubleBuffer elevationBuffer = new DoubleBuffer(Constants.ELEVATION_SMOOTHING_FACTOR);
+      Vector<Double> distances = new Vector<Double>();
+      Vector<Double> elevations = new Vector<Double>();
+
+      for (int i = 0; i < locationsCount; i++) {
+        locationsCursor.moveToPosition(i);
+
+        Location location = myTracksProviderUtils.createLocation(locationsCursor);
+        locations.add(location);
+
+        if (i == 0) {
+          // Create a start marker
+          String name = context.getString(R.string.marker_label_start, track.getName());
+          if (!createNewPoint(name, "", location, MARKER_TYPE_START)) {
+            Log.d(TAG, "Unable to create the start marker");
+            return false;
+          }
+        }
+
+        // Add to the distances and elevations vectors
+        if (LocationUtils.isValidLocation(location)) {
+          tripStatisticsBuilder.addLocation(location, location.getTime());
+          // All points go into the smoothing buffer
+          elevationBuffer.setNext(metricUnits ? location.getAltitude()
+              : location.getAltitude() * UnitConversions.M_TO_FT);
+          if (i % elevationSamplingFrequency == 0) {
+            distances.add(tripStatisticsBuilder.getStatistics().getTotalDistance());
+            elevations.add(elevationBuffer.getAverage());
+          }
+          lastLocation = location;
+        }
+
+        // Upload periodically
+        int readCount = i + 1;
+        if (readCount % MAX_POINTS_PER_UPLOAD == 0) {
+          if (!prepareAndUploadPoints(track, locations, false)) {
+            Log.d(TAG, "Unable to upload points");
+            return false;
+          }
+          updateProgress(readCount, locationsCount);
+          locations.clear();
+        }
+      }
+
+      // Do a final upload with the remaining locations
+      if (!prepareAndUploadPoints(track, locations, true)) {
+        Log.d(TAG, "Unable to upload points");
+        return false;
+      }
+
+      // Create an end marker
+      if (lastLocation != null) {
+        distances.add(tripStatisticsBuilder.getStatistics().getTotalDistance());
+        elevations.add(elevationBuffer.getAverage());
+        DescriptionGenerator descriptionGenerator = new DescriptionGeneratorImpl(context);
+        track.setDescription(
+            descriptionGenerator.generateTrackDescription(track, distances, elevations, true));
+        String name = context.getString(R.string.marker_label_end, track.getName());
+        if (!createNewPoint(name, track.getDescription(), lastLocation, MARKER_TYPE_END)) {
+          Log.d(TAG, "Unable to create the end marker");
+          return false;
+        }
+      }
+
+      return true;
+    } finally {
+      if (locationsCursor != null) {
+        locationsCursor.close();
+      }
+    }
+  }
+
+  /**
+   * Prepares and uploads a list of locations from a track.
+   *
+   * @param track the track
+   * @param locations the locations from the track
+   * @param lastBatch true if it is the last batch of locations
+   */
+  private boolean prepareAndUploadPoints(Track track, List<Location> locations, boolean lastBatch) {
+    // Prepare locations
+    ArrayList<Track> splitTracks = SendToGoogleUtils.prepareLocations(track, locations);
+
+    // Upload segments
+    boolean onlyOneSegment = lastBatch && currentSegment == 1 && splitTracks.size() == 1;
+    for (Track splitTrack : splitTracks) {
+      if (!onlyOneSegment) {
+        splitTrack.setName(context.getString(
+            R.string.send_google_track_part_label, splitTrack.getName(), currentSegment));
+      }
+      if (!createNewLineString(splitTrack)) {
+        Log.d(TAG, "Upload points failed");
+        return false;
+      }
+      currentSegment++;
+    }
+    return true;
+  }
+
+  /**
+   * Uploads all the waypoints.
+   *
+   * @return true if success.
+   */
+  private boolean uploadWaypoints() {
+    Cursor cursor = null;
+    try {
+      cursor = myTracksProviderUtils.getWaypointsCursor(
+          trackId, 0, Constants.MAX_LOADED_WAYPOINTS_POINTS);
+      if (cursor != null && cursor.moveToFirst()) {
+        // This will skip the first waypoint (it carries the stats for the
+        // track).
+        while (cursor.moveToNext()) {
+          Waypoint wpt = myTracksProviderUtils.createWaypoint(cursor);
+          String type = wpt.getType() == Waypoint.TYPE_STATISTICS ? MARKER_TYPE_STATISTICS
+              : MARKER_TYPE_WAYPOINT;
+          if (!createNewPoint(wpt.getName(), wpt.getDescription(), wpt.getLocation(), type)) {
+            Log.d(TAG, "Upload waypoints failed");
+            return false;
+          }
+        }
+      }
+      return true;
+    } finally {
+      if (cursor != null) {
+        cursor.close();
+      }
+    }
+  }
+
+  /**
+   * Creates a new row in Google Fusion Tables representing a marker as a
+   * point.
+   *
+   * @param name the marker name
+   * @param description the marker description
+   * @param location the marker location
+   * @param type the marker type
+   * @return true if success.
+   */
+  private boolean createNewPoint(
+      String name, String description, Location location, String type) {
+    String query = "INSERT INTO " + tableId + " (name,description,geometry,marker) VALUES "
+        + SendFusionTablesUtils.formatSqlValues(
+            name, description, SendFusionTablesUtils.getKmlPoint(location), type);
+    return sendQuery(query, false);
+  }
+
+  /**
+   * Creates a new row in Google Fusion Tables representing the track as a
+   * line segment.
+   *
+   * @param track the track
+   * @return true if success.
+   */
+  private boolean createNewLineString(Track track) {
+    String query = "INSERT INTO " + tableId + " (name,description,geometry) VALUES "
+        + SendFusionTablesUtils.formatSqlValues(track.getName(), track.getDescription(),
+            SendFusionTablesUtils.getKmlLineString(track.getLocations()));
+    return sendQuery(query, false);
+  }
+
+  /**
+   * Sends a query to Google Fusion Tables.
+   *
+   * @param query the Fusion Tables SQL query
+   * @param setTableId true to set the table id
+   * @return true if success.
+   */
+  private boolean sendQuery(String query, boolean setTableId) {
+    Log.d(TAG, "SendQuery: " + query);
+
+    if (isCancelled()) {
+      return false;
+    }
+
+    GenericUrl url = new GenericUrl(FUSION_TABLES_BASE_URL);
+    String sql = SQL_KEY + URLEncoder.encode(query);
+    ByteArrayInputStream inputStream = new ByteArrayInputStream(Strings.toBytesUtf8(sql));
+    InputStreamContent inputStreamContent = new InputStreamContent(null, inputStream);
+    HttpRequest request;
+    try {
+      request = httpRequestFactory.buildPostRequest(url, inputStreamContent);
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to build request", e);
+      return false;
+    }
+
+    GoogleHeaders headers = new GoogleHeaders();
+    headers.setApplicationName(APP_NAME_PREFIX + SystemUtils.getMyTracksVersion(context));
+    headers.gdataVersion = GDATA_VERSION;
+    headers.setGoogleLogin(authToken);
+    headers.setContentType(CONTENT_TYPE);
+    request.setHeaders(headers);
+
+    HttpResponse response;
+    try {
+      response = request.execute();
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to execute request", e);
+      return false;
+    }
+    boolean isSuccess = response.isSuccessStatusCode();
+    if (isSuccess) {
+      InputStream content = null;
+      try {
+        content = response.getContent();
+        if (setTableId) {
+          tableId = SendFusionTablesUtils.getTableId(content);
+          if (tableId == null) {
+            Log.d(TAG, "tableId is null");
+            return false;
+          }
+        }
+      } catch (IOException e) {
+        Log.d(TAG, "Unable to get response", e);
+        return false;
+      } finally {
+        if (content != null) {
+          try {
+            content.close();
+          } catch (IOException e) {
+            Log.d(TAG, "Unable to close content", e);
+          }
+        }
+      }
+    } else {
+      Log.d(TAG,
+          "sendQuery failed: " + response.getStatusMessage() + ": " + response.getStatusCode());
+      return false;
+    }
+    return true;
+  }
+
+  /**
+   * Updates the progress based on the number of locations uploaded.
+   *
+   * @param uploaded the number of uploaded locations
+   * @param total the number of total locations
+   */
+  private void updateProgress(int uploaded, int total) {
+    double totalPercentage = (double) uploaded / total;
+    double scaledPercentage = totalPercentage
+        * (PROGRESS_UPLOAD_DATA_MAX - PROGRESS_UPLOAD_DATA_MIN) + PROGRESS_UPLOAD_DATA_MIN;
+    publishProgress((int) scaledPercentage);
+  }
+}
+

MyTracks/src/com/google/android/apps/mytracks/io/fusiontables/SendFusionTablesUtils.java

@@ -0,0 +1,205 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.fusiontables;
+
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.api.client.util.Strings;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.location.Location;
+import android.util.Log;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+import java.util.Locale;
+
+/**
+ * Utilities for sending a track to Google Fusion Tables.
+ * 
+ * @author Jimmy Shih
+ */
+public class SendFusionTablesUtils {
+
+  public static final String SERVICE = "fusiontables";
+  private static final String UTF8 = "UTF8";
+  private static final String TABLE_ID = "tableid";
+  private static final String MAP_URL = "https://www.google.com/fusiontables/embedviz?"
+      + "viz=MAP&q=select+col0,+col1,+col2,+col3+from+%s+&h=false&lat=%f&lng=%f&z=%d&t=1&l=col2";
+  private static final String TAG = SendFusionTablesUtils.class.getSimpleName();
+
+  private SendFusionTablesUtils() {}
+
+  /**
+   * Gets the url to visualize a fusion table on a map.
+   *
+   * @param track the track
+   * @return the url.
+   */
+  public static String getMapUrl(Track track) {
+    if (track == null 
+        || track.getTripStatistics() == null 
+        || track.getTableId() == null
+        || track.getTableId().length() == 0) {
+      Log.e(TAG, "Invalid track");
+      return null;
+    }
+    double latE6;
+    double lonE6;
+    int z;
+    if (track.getNumberOfPoints() < 2) {
+      // Use Google's latitude and longitude
+      latE6 = 37.423 * 1.E6; 
+      lonE6 = -122.084 * 1.E6;
+      z = 2;
+    } else {
+      TripStatistics stats = track.getTripStatistics();
+      latE6 = stats.getBottom() + (stats.getTop() - stats.getBottom()) / 2;
+      lonE6 = stats.getLeft() + (stats.getRight() - stats.getLeft()) / 2;
+      z = 15;
+    }
+    // We explicitly format with Locale.US because we need the latitude and
+    // longitude to be formatted in a locale-independent manner. Specifically,
+    // we need the decimal separator to be a period rather than a comma.
+    return String.format(
+        Locale.US, MAP_URL, track.getTableId(), latE6 / 1.E6, lonE6 / 1.E6, z);
+  }
+
+  /**
+   * Formats an array of values as a SQL VALUES like
+   * ('value1','value2',...,'value_n'). Escapes single quotes with two single
+   * quotes.
+   *
+   * @param values an array of values to format
+   * @return the formated SQL VALUES.
+   */
+  public static String formatSqlValues(String... values) {
+    StringBuilder builder = new StringBuilder("(");
+    for (int i = 0; i < values.length; i++) {
+      if (i > 0) {
+        builder.append(',');
+      }
+      builder.append('\'');
+      builder.append(escapeSqlString(values[i]));
+      builder.append('\'');
+    }
+    builder.append(")");
+    return builder.toString();
+  }
+
+  /**
+   * Escapes a SQL string. Escapes single quotes with two single quotes.
+   *
+   * @param string the string
+   * @return the escaped string.
+   */
+  public static String escapeSqlString(String string) {
+    return string.replaceAll("'", "''");
+  }
+
+  /**
+   * Gets a KML Point value representing a location.
+   *
+   * @param location the location
+   * @return the KML Point value.
+   */
+  public static String getKmlPoint(Location location) {
+    StringBuilder builder = new StringBuilder("<Point><coordinates>");
+    if (location != null) {
+      appendLocation(location, builder);
+    }
+    builder.append("</coordinates></Point>");
+    return builder.toString();
+  }
+
+  /**
+   * Gets a KML LineString value representing an array of locations.
+   *
+   * @param locations the locations.
+   * @return the KML LineString value.
+   */
+  public static String getKmlLineString(ArrayList<Location> locations) {
+    StringBuilder builder = new StringBuilder("<LineString><coordinates>");
+    if (locations != null) {
+      for (int i = 0; i < locations.size(); i++) {
+        if (i != 0) {
+          builder.append(' ');
+        }
+        appendLocation(locations.get(i), builder);
+      }
+    }
+    builder.append("</coordinates></LineString>");
+    return builder.toString();
+  }
+
+  /**
+   * Appends a location to a string builder using "longitude,latitude[,altitude]" format.
+   *
+   * @param location the location
+   * @param builder the string builder
+   */
+  @VisibleForTesting
+  static void appendLocation(Location location, StringBuilder builder) {
+    builder.append(location.getLongitude()).append(",").append(location.getLatitude());
+    if (location.hasAltitude()) {
+      builder.append(",");
+      builder.append(location.getAltitude());
+    }
+  }
+
+  /**
+   * Gets the table id from an input streawm.
+   *
+   * @param inputStream input stream
+   * @return table id or null if not available.
+   */
+  public static String getTableId(InputStream inputStream) {
+    if (inputStream == null) {
+      Log.d(TAG, "inputStream is null");
+      return null;
+    }
+    byte[] result = new byte[1024];
+    int read;
+    try {
+      read = inputStream.read(result);
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to read result", e);
+      return null;
+    }
+    if (read == -1) {
+      Log.d(TAG, "no data read");
+      return null;
+    }
+    String s;
+    try {
+      s = new String(result, 0, read, UTF8);
+    } catch (UnsupportedEncodingException e) {
+      Log.d(TAG, "Unable to parse result", e);
+      return null;
+    }
+
+    String[] lines = s.split(Strings.LINE_SEPARATOR);
+    if (lines.length > 1 && lines[0].equals(TABLE_ID)) {
+      // returns the next line
+      return lines[1];
+    } else {
+      Log.d(TAG, "Response is not valid: " + s);
+      return null;
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/AndroidGDataClient.java

@@ -0,0 +1,459 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.gdata;
+
+import com.google.wireless.gdata.client.GDataClient;
+import com.google.wireless.gdata.client.HttpException;
+import com.google.wireless.gdata.client.QueryParams;
+import com.google.wireless.gdata.data.StringUtils;
+import com.google.wireless.gdata.parser.ParseException;
+import com.google.wireless.gdata.serializer.GDataSerializer;
+
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URLEncoder;
+import java.util.zip.GZIPInputStream;
+
+import org.apache.http.Header;
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.StatusLine;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.client.methods.HttpUriRequest;
+import org.apache.http.entity.AbstractHttpEntity;
+import org.apache.http.entity.ByteArrayEntity;
+import org.apache.http.entity.InputStreamEntity;
+import org.apache.http.impl.client.DefaultHttpClient;
+
+/**
+ * Implementation of a GDataClient using GoogleHttpClient to make HTTP requests.
+ * Always issues GETs and POSTs, using the X-HTTP-Method-Override header when a
+ * PUT or DELETE is desired, to avoid issues with firewalls, etc., that do not
+ * allow methods other than GET or POST.
+ */
+public class AndroidGDataClient implements GDataClient {
+
+  private static final String TAG = "GDataClient";
+  private static final boolean DEBUG = false;
+ 
+  private static final String X_HTTP_METHOD_OVERRIDE = "X-HTTP-Method-Override";
+
+  private static final int MAX_REDIRECTS = 10;
+
+  private final HttpClient httpClient;
+
+  /**
+   * Interface for creating HTTP requests. Used by
+   * {@link AndroidGDataClient#createAndExecuteMethod}, since HttpUriRequest
+   * does not allow for changing the URI after creation, e.g., when you want to
+   * follow a redirect.
+   */
+  private interface HttpRequestCreator {
+    HttpUriRequest createRequest(URI uri);
+  }
+
+  private static class GetRequestCreator implements HttpRequestCreator {
+    public HttpUriRequest createRequest(URI uri) {
+      return new HttpGet(uri);
+    }
+  }
+
+  private static class PostRequestCreator implements HttpRequestCreator {
+    private final String mMethodOverride;
+    private final HttpEntity mEntity;
+
+    public PostRequestCreator(String methodOverride, HttpEntity entity) {
+      mMethodOverride = methodOverride;
+      mEntity = entity;
+    }
+
+    public HttpUriRequest createRequest(URI uri) {
+      HttpPost post = new HttpPost(uri);
+      if (mMethodOverride != null) {
+        post.addHeader(X_HTTP_METHOD_OVERRIDE, mMethodOverride);
+      }
+      post.setEntity(mEntity);
+      return post;
+    }
+  }
+
+  // MAJOR TODO: make this work across redirects (if we can reset the
+  // InputStream).
+  // OR, read the bits into a local buffer (yuck, the media could be large).
+  private static class MediaPutRequestCreator implements HttpRequestCreator {
+    private final InputStream mMediaInputStream;
+    private final String mContentType;
+
+    public MediaPutRequestCreator(InputStream mediaInputStream,
+        String contentType) {
+      mMediaInputStream = mediaInputStream;
+      mContentType = contentType;
+    }
+
+    public HttpUriRequest createRequest(URI uri) {
+      HttpPost post = new HttpPost(uri);
+      post.addHeader(X_HTTP_METHOD_OVERRIDE, "PUT");
+      InputStreamEntity entity =
+          new InputStreamEntity(mMediaInputStream, -1 /* read until EOF */);
+      entity.setContentType(mContentType);
+      post.setEntity(entity);
+      return post;
+    }
+  }
+
+  /**
+   * Creates a new AndroidGDataClient.
+   */
+  public AndroidGDataClient() {
+    httpClient = new DefaultHttpClient();
+  }
+
+  public void close() {
+  }
+
+  /*
+   * (non-Javadoc)
+   *
+   * @see GDataClient#encodeUri(java.lang.String)
+   */
+  public String encodeUri(String uri) {
+    String encodedUri;
+    try {
+      encodedUri = URLEncoder.encode(uri, "UTF-8");
+    } catch (UnsupportedEncodingException uee) {
+      // should not happen.
+      Log.e("JakartaGDataClient", "UTF-8 not supported -- should not happen.  "
+          + "Using default encoding.", uee);
+      encodedUri = URLEncoder.encode(uri);
+    }
+    return encodedUri;
+  }
+
+  /*
+   * (non-Javadoc)
+   *
+   * @see com.google.wireless.gdata.client.GDataClient#createQueryParams()
+   */
+  public QueryParams createQueryParams() {
+    return new QueryParamsImpl();
+  }
+
+  // follows redirects
+  private InputStream createAndExecuteMethod(HttpRequestCreator creator,
+      String uriString, String authToken) throws HttpException, IOException {
+
+    HttpResponse response = null;
+    int status = 500;
+    int redirectsLeft = MAX_REDIRECTS;
+
+    URI uri;
+    try {
+      uri = new URI(uriString);
+    } catch (URISyntaxException use) {
+      Log.w(TAG, "Unable to parse " + uriString + " as URI.", use);
+      throw new IOException("Unable to parse " + uriString + " as URI: "
+          + use.getMessage());
+    }
+
+    // we follow redirects ourselves, since we want to follow redirects even on
+    // POSTs, which
+    // the HTTP library does not do. following redirects ourselves also allows
+    // us to log
+    // the redirects using our own logging.
+    while (redirectsLeft > 0) {
+
+      HttpUriRequest request = creator.createRequest(uri);
+      request.addHeader("User-Agent", "Android-GData");
+      request.addHeader("Accept-Encoding", "gzip");
+
+      // only add the auth token if not null (to allow for GData feeds that do
+      // not require
+      // authentication.)
+      if (!TextUtils.isEmpty(authToken)) {
+        request.addHeader("Authorization", "GoogleLogin auth=" + authToken);
+      }
+      if (DEBUG) {
+        for (Header h : request.getAllHeaders()) {
+          Log.v(TAG, h.getName() + ": " + h.getValue());
+        }
+        Log.d(TAG, "Executing " + request.getRequestLine().toString());
+      }
+
+      response = null;
+
+      try {
+        response = httpClient.execute(request);
+      } catch (IOException ioe) {
+        Log.w(TAG, "Unable to execute HTTP request." + ioe);
+        throw ioe;
+      }
+
+      StatusLine statusLine = response.getStatusLine();
+      if (statusLine == null) {
+        Log.w(TAG, "StatusLine is null.");
+        throw new NullPointerException(
+            "StatusLine is null -- should not happen.");
+      }
+
+      if (Log.isLoggable(TAG, Log.DEBUG)) {
+        Log.d(TAG, response.getStatusLine().toString());
+        for (Header h : response.getAllHeaders()) {
+          Log.d(TAG, h.getName() + ": " + h.getValue());
+        }
+      }
+      status = statusLine.getStatusCode();
+
+      HttpEntity entity = response.getEntity();
+
+      if ((status >= 200) && (status < 300) && entity != null) {
+        return getUngzippedContent(entity);
+      }
+
+      // TODO: handle 301, 307?
+      // TODO: let the http client handle the redirects, if we can be sure we'll
+      // never get a
+      // redirect on POST.
+      if (status == 302) {
+        // consume the content, so the connection can be closed.
+        entity.consumeContent();
+        Header location = response.getFirstHeader("Location");
+        if (location == null) {
+          if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "Redirect requested but no Location " + "specified.");
+          }
+          break;
+        }
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+          Log.d(TAG, "Following redirect to " + location.getValue());
+        }
+        try {
+          uri = new URI(location.getValue());
+        } catch (URISyntaxException use) {
+          if (Log.isLoggable(TAG, Log.DEBUG)) {
+            Log.d(TAG, "Unable to parse " + location.getValue() + " as URI.",
+                use);
+            throw new IOException("Unable to parse " + location.getValue()
+                + " as URI.");
+          }
+          break;
+        }
+        --redirectsLeft;
+      } else {
+        break;
+      }
+    }
+
+    if (Log.isLoggable(TAG, Log.VERBOSE)) {
+      Log.v(TAG, "Received " + status + " status code.");
+    }
+    String errorMessage = null;
+    HttpEntity entity = response.getEntity();
+    try {
+      if (entity != null) {
+        InputStream in = entity.getContent();
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        byte[] buf = new byte[8192];
+        int bytesRead = -1;
+        while ((bytesRead = in.read(buf)) != -1) {
+          baos.write(buf, 0, bytesRead);
+        }
+        // TODO: use appropriate encoding, picked up from Content-Type.
+        errorMessage = new String(baos.toByteArray());
+        if (Log.isLoggable(TAG, Log.VERBOSE)) {
+          Log.v(TAG, errorMessage);
+        }
+      }
+    } finally {
+      if (entity != null) {
+        entity.consumeContent();
+      }
+    }
+    String exceptionMessage = "Received " + status + " status code";
+    if (errorMessage != null) {
+      exceptionMessage += (": " + errorMessage);
+    }
+    throw new HttpException(exceptionMessage, status, null /* InputStream */);
+  }
+
+  /**
+   * Gets the input stream from a response entity.  If the entity is gzipped
+   * then this will get a stream over the uncompressed data.
+   *
+   * @param entity the entity whose content should be read
+   * @return the input stream to read from
+   * @throws IOException
+   */
+  private static InputStream getUngzippedContent(HttpEntity entity)
+      throws IOException {
+    InputStream responseStream = entity.getContent();
+    if (responseStream == null) {
+      return responseStream;
+    }
+    Header header = entity.getContentEncoding();
+    if (header == null) {
+      return responseStream;
+    }
+    String contentEncoding = header.getValue();
+    if (contentEncoding == null) {
+      return responseStream;
+    }
+    if (contentEncoding.contains("gzip")){
+      responseStream = new GZIPInputStream(responseStream);
+    }
+    return responseStream;
+  }
+
+  /*
+   * (non-Javadoc)
+   *
+   * @see GDataClient#getFeedAsStream(java.lang.String, java.lang.String)
+   */
+  public InputStream getFeedAsStream(String feedUrl, String authToken)
+      throws HttpException, IOException {
+
+    InputStream in =
+        createAndExecuteMethod(new GetRequestCreator(), feedUrl, authToken);
+    if (in != null) {
+      return in;
+    }
+    throw new IOException("Unable to access feed.");
+  }
+
+  public InputStream getMediaEntryAsStream(String mediaEntryUrl,
+      String authToken) throws HttpException, IOException {
+
+    InputStream in =
+        createAndExecuteMethod(new GetRequestCreator(), mediaEntryUrl,
+            authToken);
+
+    if (in != null) {
+      return in;
+    }
+    throw new IOException("Unable to access media entry.");
+  }
+
+  /*
+   * (non-Javadoc)
+   *
+   * @see GDataClient#createEntry
+   */
+  public InputStream createEntry(String feedUrl, String authToken,
+      GDataSerializer entry) throws HttpException, IOException {
+
+    HttpEntity entity =
+        createEntityForEntry(entry, GDataSerializer.FORMAT_CREATE);
+    InputStream in =
+        createAndExecuteMethod(new PostRequestCreator(null /* override */,
+            entity), feedUrl, authToken);
+    if (in != null) {
+      return in;
+    }
+    throw new IOException("Unable to create entry.");
+  }
+
+  /*
+   * (non-Javadoc)
+   *
+   * @see GDataClient#updateEntry
+   */
+  public InputStream updateEntry(String editUri, String authToken,
+      GDataSerializer entry) throws HttpException, IOException {
+    HttpEntity entity =
+        createEntityForEntry(entry, GDataSerializer.FORMAT_UPDATE);
+    InputStream in =
+        createAndExecuteMethod(new PostRequestCreator("PUT", entity), editUri,
+            authToken);
+    if (in != null) {
+      return in;
+    }
+    throw new IOException("Unable to update entry.");
+  }
+
+  /*
+   * (non-Javadoc)
+   *
+   * @see GDataClient#deleteEntry
+   */
+  public void deleteEntry(String editUri, String authToken)
+      throws HttpException, IOException {
+    if (StringUtils.isEmpty(editUri)) {
+      throw new IllegalArgumentException(
+          "you must specify an non-empty edit url");
+    }
+    InputStream in =
+        createAndExecuteMethod(
+            new PostRequestCreator("DELETE", null /* entity */), editUri,
+            authToken);
+    if (in == null) {
+      throw new IOException("Unable to delete entry.");
+    }
+    try {
+      in.close();
+    } catch (IOException ioe) {
+      // ignore
+    }
+  }
+
+  public InputStream updateMediaEntry(String editUri, String authToken,
+      InputStream mediaEntryInputStream, String contentType)
+      throws HttpException, IOException {
+    InputStream in =
+        createAndExecuteMethod(new MediaPutRequestCreator(
+            mediaEntryInputStream, contentType), editUri, authToken);
+    if (in != null) {
+      return in;
+    }
+    throw new IOException("Unable to write media entry.");
+  }
+
+  private HttpEntity createEntityForEntry(GDataSerializer entry, int format)
+      throws IOException {
+    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    try {
+      entry.serialize(baos, format);
+    } catch (IOException ioe) {
+      Log.e(TAG, "Unable to serialize entry.", ioe);
+      throw ioe;
+    } catch (ParseException pe) {
+      Log.e(TAG, "Unable to serialize entry.", pe);
+      throw new IOException("Unable to serialize entry: " + pe.getMessage());
+    }
+
+    byte[] entryBytes = baos.toByteArray();
+
+    if (entryBytes != null && Log.isLoggable(TAG, Log.DEBUG)) {
+      try {
+        Log.d(TAG, "Serialized entry: " + new String(entryBytes, "UTF-8"));
+      } catch (UnsupportedEncodingException uee) {
+        // should not happen
+        throw new IllegalStateException("UTF-8 should be supported!", uee);
+      }
+    }
+
+    AbstractHttpEntity entity = new ByteArrayEntity(entryBytes);
+    entity.setContentType(entry.getContentType());
+    return entity;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/GDataClientFactory.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.gdata;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.wireless.gdata.client.GDataClient;
+
+import android.content.Context;
+import android.util.Log;
+
+/**
+ * This factory will fetch the right class for the platform.
+ * 
+ * @author Sandor Dornbush
+ */
+public class GDataClientFactory {
+
+  private GDataClientFactory() { }
+
+  /**
+   * Creates a new GData client.
+   * This factory will fetch the right class for the platform.
+   * @return A GDataClient appropriate for this platform
+   */
+  public static GDataClient getGDataClient(Context context) {
+    // TODO This should be moved into ApiAdapter
+    try {
+      // Try to use the official unbundled gdata client implementation.
+      // This should work on Froyo and beyond.
+      return new com.google.android.common.gdata.AndroidGDataClient(context);
+    } catch (LinkageError e) {
+      // On all other platforms use the client implementation packaged in the
+      // apk.
+      Log.i(Constants.TAG, "Using mytracks AndroidGDataClient.", e);
+      return new com.google.android.apps.mytracks.io.gdata.AndroidGDataClient();
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/QueryParamsImpl.java

@@ -0,0 +1,106 @@
+/*
+ * Copyright 2010 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.gdata;
+
+import com.google.wireless.gdata.client.QueryParams;
+
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Simple implementation of the QueryParams interface.
+ */
+// TODO: deal with categories
+public class QueryParamsImpl extends QueryParams {
+
+  private final Map<String, String> mParams = new HashMap<String, String>();
+
+  @Override
+  public void clear() {
+    setEntryId(null);
+    mParams.clear();
+  }
+
+  @Override
+  public String generateQueryUrl(String feedUrl) {
+
+    if (TextUtils.isEmpty(getEntryId()) && mParams.isEmpty()) {
+      // nothing to do
+      return feedUrl;
+    }
+
+    // handle entry IDs
+    if (!TextUtils.isEmpty(getEntryId())) {
+      if (!mParams.isEmpty()) {
+        throw new IllegalStateException("Cannot set both an entry ID "
+            + "and other query paramters.");
+      }
+      return feedUrl + '/' + getEntryId();
+    }
+
+    // otherwise, append the querystring params.
+    StringBuilder sb = new StringBuilder();
+    sb.append(feedUrl);
+    Set<String> params = mParams.keySet();
+    boolean first = true;
+    if (feedUrl.contains("?")) {
+      first = false;
+    } else {
+      sb.append('?');
+    }
+    for (String param : params) {
+      if (first) {
+        first = false;
+      } else {
+        sb.append('&');
+      }
+      sb.append(param);
+      sb.append('=');
+      String value = mParams.get(param);
+      String encodedValue = null;
+
+      try {
+        encodedValue = URLEncoder.encode(value, "UTF-8");
+      } catch (UnsupportedEncodingException uee) {
+        // should not happen.
+        Log.w("QueryParamsImpl", "UTF-8 not supported -- should not happen.  "
+            + "Using default encoding.", uee);
+        encodedValue = URLEncoder.encode(value);
+      }
+      sb.append(encodedValue);
+    }
+    return sb.toString();
+  }
+
+  @Override
+  public String getParamValue(String param) {
+    if (!(mParams.containsKey(param))) {
+      return null;
+    }
+    return mParams.get(param);
+  }
+
+  @Override
+  public void setParamValue(String param, String value) {
+    mParams.put(param, value);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/docs/DocumentsClient.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2009 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.gdata.docs;
+
+import com.google.wireless.gdata.client.GDataClient;
+import com.google.wireless.gdata.client.GDataParserFactory;
+import com.google.wireless.gdata.client.GDataServiceClient;
+
+/**
+ * GDataServiceClient for accessing Google Documents. This is not a full
+ * implementation.
+ */
+public class DocumentsClient extends GDataServiceClient {
+  /** The name of the service, dictated to be 'wise' by the protocol. */
+  public static final String SERVICE = "writely";
+
+  /**
+   * Creates a new DocumentsClient.
+   * 
+   * @param client The GDataClient that should be used to authenticate requests,
+   *        retrieve feeds, etc
+   * @param parserFactory The GDataParserFactory that should be used to obtain
+   *        GDataParsers used by this client
+   */
+  public DocumentsClient(GDataClient client, GDataParserFactory parserFactory) {
+    super(client, parserFactory);
+  }
+
+  @Override
+  public String getServiceName() {
+    return SERVICE;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/docs/SpreadsheetsClient.java

@@ -0,0 +1,269 @@
+/*
+ * Copyright 2007 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.gdata.docs;
+
+import com.google.wireless.gdata.client.GDataClient;
+import com.google.wireless.gdata.client.GDataParserFactory;
+import com.google.wireless.gdata.client.GDataServiceClient;
+import com.google.wireless.gdata.client.HttpException;
+import com.google.wireless.gdata.data.Entry;
+import com.google.wireless.gdata.data.StringUtils;
+import com.google.wireless.gdata.parser.GDataParser;
+import com.google.wireless.gdata.parser.ParseException;
+import com.google.wireless.gdata.serializer.GDataSerializer;
+import com.google.wireless.gdata2.client.AuthenticationException;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * GDataServiceClient for accessing Google Spreadsheets. This client can access
+ * and parse all of the Spreadsheets feed types: Spreadsheets feed, Worksheets
+ * feed, List feed, and Cells feed. Read operations are supported on all feed
+ * types, but only the List and Cells feeds support write operations. (This is a
+ * limitation of the protocol, not this API. Such write access may be added to
+ * the protocol in the future, requiring changes to this implementation.)
+ * 
+ * Only 'private' visibility and 'full' projections are currently supported.
+ */
+public class SpreadsheetsClient extends GDataServiceClient {
+  /** The name of the service, dictated to be 'wise' by the protocol. */
+  public static final String SERVICE = "wise";
+
+  /** Standard base feed url for spreadsheets. */
+  public static final String SPREADSHEETS_BASE_FEED_URL =
+      "http://spreadsheets.google.com/feeds/spreadsheets/private/full";
+
+  /**
+   * Represents an entry in a GData Spreadsheets meta-feed.
+   */
+  public static class SpreadsheetEntry extends Entry { }
+
+  /**
+   * Represents an entry in a GData Worksheets meta-feed.
+   */
+  public static class WorksheetEntry extends Entry { }
+
+  /**
+   * Creates a new SpreadsheetsClient. Uses the standard base URL for
+   * spreadsheets feeds.
+   * 
+   * @param client The GDataClient that should be used to authenticate requests,
+   *        retrieve feeds, etc
+   */
+  public SpreadsheetsClient(GDataClient client,
+      GDataParserFactory spreadsheetFactory) {
+    super(client, spreadsheetFactory);
+  }
+
+  @Override
+  public String getServiceName() {
+    return SERVICE;
+  }
+
+  /**
+   * Returns a parser for the specified feed type.
+   * 
+   * @param feedEntryClass the Class of entry type that will be parsed, which
+   *        lets this method figure out which parser to create
+   * @param feedUri the URI of the feed to be fetched and parsed
+   * @param authToken the current authToken to use for the request
+   * @return a parser for the indicated feed
+   * @throws AuthenticationException if the authToken is not valid
+   * @throws ParseException if the response from the server could not be parsed
+   */
+  private GDataParser getParserForTypedFeed(
+      Class<? extends Entry> feedEntryClass, String feedUri, String authToken)
+      throws AuthenticationException, ParseException, IOException {
+    GDataClient gDataClient = getGDataClient();
+    GDataParserFactory gDataParserFactory = getGDataParserFactory();
+
+    try {
+      InputStream is = gDataClient.getFeedAsStream(feedUri, authToken);
+      return gDataParserFactory.createParser(feedEntryClass, is);
+    } catch (HttpException e) {
+      convertHttpExceptionForReads("Could not fetch parser feed.", e);
+      return null; // never reached
+    }
+  }
+
+  /**
+   * Converts an HTTP exception that happened while reading into the equivalent
+   * local exception.
+   */
+  public void convertHttpExceptionForReads(String message, HttpException cause)
+      throws AuthenticationException, IOException {
+    switch (cause.getStatusCode()) {
+      case HttpException.SC_FORBIDDEN:
+      case HttpException.SC_UNAUTHORIZED:
+        throw new AuthenticationException(message, cause);
+      case HttpException.SC_GONE:
+      default:
+        throw new IOException(message + ": " + cause.getMessage());
+    }
+  }
+
+  @Override
+  public Entry createEntry(String feedUri, String authToken, Entry entry)
+      throws ParseException, IOException {
+
+    GDataParserFactory factory = getGDataParserFactory();
+    GDataSerializer serializer = factory.createSerializer(entry);
+
+    InputStream is;
+    try {
+      is = getGDataClient().createEntry(feedUri, authToken, serializer);
+    } catch (HttpException e) {
+      convertHttpExceptionForWrites(entry.getClass(),
+          "Could not update entry.", e);
+      return null; // never reached.
+    }
+
+    GDataParser parser = factory.createParser(entry.getClass(), is);
+    try {
+      return parser.parseStandaloneEntry();
+    } finally {
+      parser.close();
+    }
+  }
+
+  /**
+   * Fetches a GDataParser for the indicated feed. The parser can be used to
+   * access the contents of URI. WARNING: because we cannot reliably infer the
+   * feed type from the URI alone, this method assumes the default feed type!
+   * This is probably NOT what you want. Please use the getParserFor[Type]Feed
+   * methods.
+   * 
+   * @param feedEntryClass
+   * @param feedUri the URI of the feed to be fetched and parsed
+   * @param authToken the current authToken to use for the request
+   * @return a parser for the indicated feed
+   * @throws ParseException if the response from the server could not be parsed
+   */
+  @SuppressWarnings("rawtypes")
+  @Override
+  public GDataParser getParserForFeed(
+      Class feedEntryClass, String feedUri, String authToken)
+      throws ParseException, IOException {
+    try {
+      return getParserForTypedFeed(SpreadsheetEntry.class, feedUri, authToken);
+    } catch (AuthenticationException e) {
+      throw new IOException("Authentication Failure: " + e.getMessage());
+    }
+  }
+
+  /**
+   * Returns a parser for a Worksheets meta-feed.
+   * 
+   * @param feedUri the URI of the feed to be fetched and parsed
+   * @param authToken the current authToken to use for the request
+   * @return a parser for the indicated feed
+   * @throws AuthenticationException if the authToken is not valid
+   * @throws ParseException if the response from the server could not be parsed
+   */
+  public GDataParser getParserForWorksheetsFeed(
+      String feedUri, String authToken)
+      throws AuthenticationException, ParseException, IOException {
+    return getParserForTypedFeed(WorksheetEntry.class, feedUri, authToken);
+  }
+
+  /**
+   * Updates an entry. The URI to be updated is taken from <code>entry</code>.
+   * Note that only entries in List and Cells feeds can be updated, so
+   * <code>entry</code> must be of the corresponding type; other types will
+   * result in an exception.
+   * 
+   * @param entry the entry to be updated; must include its URI
+   * @param authToken the current authToken to be used for the operation
+   * @return An Entry containing the re-parsed version of the entry returned by
+   *         the server in response to the update
+   * @throws ParseException if the server returned an error, if the server's
+   *         response was unparseable (unlikely), or if <code>entry</code> is of
+   *         a read-only type
+   * @throws IOException on network error
+   */
+  @Override
+  public Entry updateEntry(Entry entry, String authToken)
+      throws ParseException, IOException {
+    GDataParserFactory factory = getGDataParserFactory();
+    GDataSerializer serializer = factory.createSerializer(entry);
+
+    String editUri = entry.getEditUri();
+    if (StringUtils.isEmpty(editUri)) {
+      throw new ParseException("No edit URI -- cannot update.");
+    }
+
+    InputStream is;
+    try {
+      is = getGDataClient().updateEntry(editUri, authToken, serializer);
+    } catch (HttpException e) {
+      convertHttpExceptionForWrites(entry.getClass(),
+          "Could not update entry.", e);
+      return null; // never reached
+    }
+
+    GDataParser parser = factory.createParser(entry.getClass(), is);
+    try {
+      return parser.parseStandaloneEntry();
+    } finally {
+      parser.close();
+    }
+  }
+
+  /**
+   * Converts an HTTP exception which happened while writing to the equivalent
+   * local exception.
+   */
+  @SuppressWarnings("rawtypes")
+  private void convertHttpExceptionForWrites(
+      Class entryClass, String message, HttpException cause)
+      throws ParseException, IOException {
+    switch (cause.getStatusCode()) {
+      case HttpException.SC_CONFLICT:
+        if (entryClass != null) {
+          InputStream is = cause.getResponseStream();
+          if (is != null) {
+            parseEntry(entryClass, cause.getResponseStream());
+          }
+        }
+        throw new IOException(message);
+      case HttpException.SC_BAD_REQUEST:
+        throw new ParseException(message + ": " + cause);
+      case HttpException.SC_FORBIDDEN:
+      case HttpException.SC_UNAUTHORIZED:
+        throw new IOException(message);
+      default:
+        throw new IOException(message + ": " + cause.getMessage());
+    }
+  }
+
+  /**
+   * Parses one entry from the input stream.
+   */
+  @SuppressWarnings("rawtypes")
+  private Entry parseEntry(Class entryClass, InputStream is)
+      throws ParseException, IOException {
+    GDataParser parser = null;
+    try {
+      parser = getGDataParserFactory().createParser(entryClass, is);
+      return parser.parseStandaloneEntry();
+    } finally {
+      if (parser != null) {
+        parser.close();
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/docs/XmlDocsGDataParserFactory.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.gdata.docs;
+
+import com.google.wireless.gdata.client.GDataParserFactory;
+import com.google.wireless.gdata.data.Entry;
+import com.google.wireless.gdata.parser.GDataParser;
+import com.google.wireless.gdata.parser.ParseException;
+import com.google.wireless.gdata.parser.xml.XmlGDataParser;
+import com.google.wireless.gdata.parser.xml.XmlParserFactory;
+import com.google.wireless.gdata.serializer.GDataSerializer;
+import com.google.wireless.gdata.serializer.xml.XmlEntryGDataSerializer;
+
+import java.io.InputStream;
+
+import org.xmlpull.v1.XmlPullParserException;
+
+/**
+ * Factory of Xml parsers for gdata maps data.
+ */
+public class XmlDocsGDataParserFactory implements GDataParserFactory {
+  private XmlParserFactory xmlFactory;
+
+  public XmlDocsGDataParserFactory(XmlParserFactory xmlFactory) {
+    this.xmlFactory = xmlFactory;
+  }
+
+  @Override
+  public GDataParser createParser(InputStream is) throws ParseException {
+    try {
+      return new XmlGDataParser(is, xmlFactory.createParser());
+    } catch (XmlPullParserException e) {
+      e.printStackTrace();
+      return null;
+    }
+  }
+
+  @SuppressWarnings("rawtypes")
+  @Override
+  public GDataParser createParser(Class cls, InputStream is)
+      throws ParseException {
+    try {
+      return createParserForClass(is);
+    } catch (XmlPullParserException e) {
+      e.printStackTrace();
+      return null;
+    }
+  }
+
+  private GDataParser createParserForClass(InputStream is)
+      throws ParseException, XmlPullParserException {
+    return new XmlGDataParser(is, xmlFactory.createParser());
+  }
+
+  @Override
+  public GDataSerializer createSerializer(Entry en) {
+    return new XmlEntryGDataSerializer(xmlFactory, en);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/MapFeatureEntry.java

@@ -0,0 +1,36 @@
+// Copyright 2010 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+import com.google.wireless.gdata.data.Entry;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * GData entry for a map feature.
+ */
+public class MapFeatureEntry extends Entry {
+
+  private String mPrivacy = null;
+  private Map<String, String> mAttributes = new HashMap<String, String>();
+
+  public void setPrivacy(String privacy) {
+    mPrivacy = privacy;
+  }
+
+  public String getPrivacy() {
+    return mPrivacy;
+  }
+
+  public void setAttribute(String name, String value) {
+    mAttributes.put(name, value);
+  }
+
+  public void removeAttribute(String name) {
+    mAttributes.remove(name);
+  }
+
+  public Map<String, String> getAllAttributes() {
+    return mAttributes;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/MapsClient.java

@@ -0,0 +1,102 @@
+// Copyright 2010 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+import com.google.wireless.gdata.client.GDataClient;
+import com.google.wireless.gdata.client.GDataParserFactory;
+import com.google.wireless.gdata.client.GDataServiceClient;
+
+import android.util.Log;
+
+import java.util.Locale;
+
+/**
+ * Client to talk to Google Maps via GData.
+ */
+public class MapsClient extends GDataServiceClient {
+  private static final boolean DEBUG = false;
+  public static final boolean LOG_COMMUNICATION = false;
+
+  private static final String MAPS_BASE_FEED_URL =
+      "http://maps.google.com/maps/feeds/";
+  private static final String MAPS_MAP_FEED_PATH = "maps/default/full";
+  private static final String MAPS_FEATURE_FEED_PATH_BEFORE_MAPID = "features/";
+  private static final String MAPS_FEATURE_FEED_PATH_AFTER_MAPID = "/full";
+  private static final String MAPS_VERSION_FEED_PATH_FORMAT =
+      "%smaps/%s/versions/%s/full/%s";
+
+  private static final String MAP_ENTRY_ID_BEFORE_USER_ID = "maps/feeds/maps/";
+  private static final String MAP_ENTRY_ID_BETWEEN_USER_ID_AND_MAP_ID = "/";
+  private static final String V2_ONLY_PARAM = "?v=2.0";
+
+  public MapsClient(GDataClient dataClient,
+      GDataParserFactory dataParserFactory) {
+    super(dataClient, dataParserFactory);
+  }
+
+  @Override
+  public String getServiceName() {
+    return MapsConstants.SERVICE_NAME;
+  }
+
+  public static String buildMapUrl(String mapId) {
+    return MapsConstants.MAPSHOP_BASE_URL + "?msa=0&msid=" + mapId;
+  }
+
+  public static String getMapsFeed() {
+    if (DEBUG) {
+      Log.d("Maps Client", "Requesting map feed:");
+    }
+    return MAPS_BASE_FEED_URL + MAPS_MAP_FEED_PATH + V2_ONLY_PARAM;
+  }
+
+  public static String getFeaturesFeed(String mapid) {
+    StringBuilder feed = new StringBuilder();
+    feed.append(MAPS_BASE_FEED_URL);
+    feed.append(MAPS_FEATURE_FEED_PATH_BEFORE_MAPID);
+    feed.append(mapid);
+    feed.append(MAPS_FEATURE_FEED_PATH_AFTER_MAPID);
+    feed.append(V2_ONLY_PARAM);
+    return feed.toString();
+  }
+
+  public static String getMapIdFromMapEntryId(String entryId) {
+    String userId = null;
+    String mapId = null;
+    if (DEBUG) {
+      Log.d("Maps GData Client", "Getting mapid from entry id: " + entryId);
+    }
+    int userIdStart =
+        entryId.indexOf(MAP_ENTRY_ID_BEFORE_USER_ID)
+            + MAP_ENTRY_ID_BEFORE_USER_ID.length();
+    int userIdEnd =
+        entryId.indexOf(MAP_ENTRY_ID_BETWEEN_USER_ID_AND_MAP_ID, userIdStart);
+    if (userIdStart >= 0 && userIdEnd < entryId.length()
+        && userIdStart <= userIdEnd) {
+      userId = entryId.substring(userIdStart, userIdEnd);
+    }
+    int mapIdStart =
+        entryId.indexOf(MAP_ENTRY_ID_BETWEEN_USER_ID_AND_MAP_ID, userIdEnd)
+            + MAP_ENTRY_ID_BETWEEN_USER_ID_AND_MAP_ID.length();
+    if (mapIdStart >= 0 && mapIdStart < entryId.length()) {
+      mapId = entryId.substring(mapIdStart);
+    }
+    if (userId == null) {
+      userId = "";
+    }
+    if (mapId == null) {
+      mapId = "";
+    }
+    if (DEBUG) {
+      Log.d("Maps GData Client", "Got user id: " + userId);
+      Log.d("Maps GData Client", "Got map id: " + mapId);
+    }
+    return userId + "." + mapId;
+  }
+
+  public static String getVersionFeed(String versionUserId,
+      String versionClient, String currentVersion) {
+    return String.format(Locale.US, MAPS_VERSION_FEED_PATH_FORMAT, MAPS_BASE_FEED_URL,
+        versionUserId, versionClient, currentVersion);
+  }
+
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/MapsConstants.java

@@ -0,0 +1,16 @@
+// Copyright 2009 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+/**
+ * Constants for Google Maps.
+ */
+public class MapsConstants {
+  static final String MAPSHOP_BASE_URL =
+      "https://maps.google.com/maps/ms";
+  public static final String SERVICE_NAME = "local";
+
+  /**
+   * Private constructor to prevent instantiation.
+   */
+  private MapsConstants() { }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/MapsFeature.java

@@ -0,0 +1,233 @@
+// Copyright 2009 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+import com.google.android.maps.GeoPoint;
+
+import java.util.Random;
+import java.util.Vector;
+
+/**
+ * MapsFeature contains all of the data associated with a feature in Google
+ * Maps, where a feature is a marker, line, or shape. Some of the data is stored
+ * in a {@link MapsFeatureMetadata} object so that it can be more efficiently
+ * transmitted to other activities.
+ */
+public class MapsFeature {
+
+  /** A marker feature displays an icon at a single point on the map. */
+  public static final int MARKER = 0;
+
+  /**
+   * A line feature displays a line connecting a set of points on the map.
+   */
+  public static final int LINE = 1;
+
+  /**
+   * A shape feature displays a border defined by connecting a set of points,
+   * including connecting the last to the first, and displays the area
+   * confined by this border.
+   */
+  public static final int SHAPE = 2;
+
+  /** The local feature id for this feature, if needed. */
+  private String androidId;
+
+  /**
+   * The latitudes of the points of this feature in order, specified in
+   * millionths of a degree north.
+   */
+  private final Vector<Integer> latitudeE6 = new Vector<Integer>();
+
+  /**
+   * The longitudes of the points of this feature in order, specified in
+   * millionths of a degree east.
+   */
+  private final Vector<Integer> longitudeE6 = new Vector<Integer>();
+
+  /** The metadata of this feature in a format efficient for transmission. */
+  private MapsFeatureMetadata featureInfo = new MapsFeatureMetadata();
+
+  private final Random random = new Random();
+
+  /**
+   * Initializes a valid but empty feature. It will default to a
+   * {@link #MARKER} with a blue placemark with a dot as an icon at the
+   * location (0, 0).
+   */
+  public MapsFeature() {
+  }
+
+  /**
+   * Adds a new point to the end of this feature.
+   *
+   * @param point The new point to add
+   */
+  public void addPoint(GeoPoint point) {
+    latitudeE6.add(point.getLatitudeE6());
+    longitudeE6.add(point.getLongitudeE6());
+  }
+
+  /**
+   * Generates a new local id for this feature based on the current time and
+   * a random number.
+   */
+  public void generateAndroidId() {
+    long time = System.currentTimeMillis();
+    int rand = random.nextInt(10000);
+    androidId = time + "." + rand;
+  }
+
+  /**
+   * Retrieves the current local id for this feature if one is available.
+   *
+   * @return The local id for this feature
+   */
+  public String getAndroidId() {
+    return androidId;
+  }
+
+  /**
+   * Retrieves the current (html) description of this feature. The description
+   * is stored in the feature metadata.
+   *
+   * @return The description of this feature
+   */
+  public String getDescription() {
+    return featureInfo.getDescription();
+  }
+
+  /**
+   * Sets the description of this feature. That description is stored in the
+   * feature metadata.
+   *
+   * @param description The new description of this feature
+   */
+  public void setDescription(String description) {
+    featureInfo.setDescription(description);
+  }
+
+  /**
+   * Retrieves the point at the given index for this feature.
+   *
+   * @param index The index of the point desired
+   * @return A {@link GeoPoint} representing the point or null if that point
+   *         doesn't exist
+   */
+  public GeoPoint getPoint(int index) {
+    if (latitudeE6.size() <= index) {
+      return null;
+    }
+    return new GeoPoint(latitudeE6.get(index), longitudeE6.get(index));
+  }
+
+  /**
+   * Counts the number of points in this feature and return that count.
+   *
+   * @return The number of points in this feature
+   */
+  public int getPointCount() {
+    return latitudeE6.size();
+  }
+
+  /**
+   * Retrieves the title of this feature. That title is stored in the feature
+   * metadata.
+   *
+   * @return the current title of this feature
+   */
+  public String getTitle() {
+    return featureInfo.getTitle();
+  }
+
+  /**
+   * Retrieves the type of this feature. That type is stored in the feature
+   * metadata.
+   *
+   * @return One of {@link #MARKER}, {@link #LINE}, or {@link #SHAPE}
+   *         identifying the type of this feature
+   */
+  public int getType() {
+    return featureInfo.getType();
+  }
+
+  /**
+   * Retrieves the current color of this feature as an ARGB color integer.
+   * That color is stored in the feature metadata.
+   *
+   * @return The ARGB color of this feature
+   */
+  public int getColor() {
+    return featureInfo.getColor();
+  }
+
+  /**
+   * Retrieves the current line width of this feature. That line width is
+   * stored in the feature metadata.
+   *
+   * @return The line width of this feature
+   */
+  public int getLineWidth() {
+    return featureInfo.getLineWidth();
+  }
+
+  /**
+   * Retrieves the current fill color of this feature as an ARGB color
+   * integer. That color is stored in the feature metadata.
+   *
+   * @return The ARGB fill color of this feature
+   */
+  public int getFillColor() {
+    return featureInfo.getFillColor();
+  }
+
+  /**
+   * Retrieves the current icon url of this feature. That icon url is stored
+   * in the feature metadata.
+   *
+   * @return The icon url for this feature
+   */
+  public String getIconUrl() {
+    return featureInfo.getIconUrl();
+  }
+
+  /**
+   * Sets the title of this feature. That title is stored in the feature
+   * metadata.
+   *
+   * @param title The new title of this feature
+   */
+  public void setTitle(String title) {
+    featureInfo.setTitle(title);
+  }
+
+  /**
+   * Sets the type of this feature. That type is stored in the feature
+   * metadata.
+   *
+   * @param type The new type of the feature. That type must be one of
+   *        {@link #MARKER}, {@link #LINE}, or {@link #SHAPE}
+   */
+  public void setType(int type) {
+    featureInfo.setType(type);
+  }
+
+  /**
+   * Sets the ARGB color of this feature. That color is stored in the feature
+   * metadata.
+   *
+   * @param color The new ARGB color of this feature
+   */
+  public void setColor(int color) {
+    featureInfo.setColor(color);
+  }
+
+  /**
+   * Sets the icon url of this feature. That icon url is stored in the feature
+   * metadata.
+   *
+   * @param url The new icon url of the feature
+   */
+  public void setIconUrl(String url) {
+    featureInfo.setIconUrl(url);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/MapsFeatureMetadata.java

@@ -0,0 +1,88 @@
+// Copyright 2009 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+
+/**
+ * Metadata about a maps feature.
+ */
+class MapsFeatureMetadata {
+
+  private static final String BLUE_DOT_URL =
+      "http://maps.google.com/mapfiles/ms/micons/blue-dot.png";
+  private static final int DEFAULT_COLOR = 0x800000FF;
+  private static final int DEFAULT_FILL_COLOR = 0xC00000FF;
+
+  private String title;
+  private String description;
+  private int type;
+  private int color;
+  private int lineWidth;
+  private int fillColor;
+  private String iconUrl;
+
+  public MapsFeatureMetadata() {
+    title = "";
+    description = "";
+    type = MapsFeature.MARKER;
+    color = DEFAULT_COLOR;
+    lineWidth = 5;
+    fillColor = DEFAULT_FILL_COLOR;
+    iconUrl = BLUE_DOT_URL;
+  }
+
+  public String getTitle() {
+    return title;
+  }
+
+  public void setTitle(String title) {
+    this.title = title;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
+
+  public int getType() {
+    return type;
+  }
+
+  public void setType(int type) {
+    this.type = type;
+  }
+
+  public int getColor() {
+    return color;
+  }
+
+  public void setColor(int color) {
+    this.color = color;
+  }
+
+  public int getLineWidth() {
+    return lineWidth;
+  }
+
+  public void setLineWidth(int width) {
+    lineWidth = width;
+  }
+
+  public int getFillColor() {
+    return fillColor;
+  }
+
+  public void setFillColor(int color) {
+    fillColor = color;
+  }
+
+  public String getIconUrl() {
+    return iconUrl;
+  }
+
+  public void setIconUrl(String url) {
+    iconUrl = url;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/MapsGDataConverter.java

@@ -0,0 +1,178 @@
+// Copyright 2009 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+import com.google.wireless.gdata.data.Entry;
+import com.google.wireless.gdata.data.StringUtils;
+
+import android.graphics.Color;
+import android.util.Log;
+
+import java.io.IOException;
+import java.io.StringWriter;
+
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlPullParserFactory;
+import org.xmlpull.v1.XmlSerializer;
+
+/**
+ * Converter from GData objects to Maps objects.
+ */
+public class MapsGDataConverter {
+
+  private final XmlSerializer xmlSerializer;
+
+  public MapsGDataConverter() throws XmlPullParserException {
+    xmlSerializer = XmlPullParserFactory.newInstance().newSerializer();
+  }
+
+  public static MapsMapMetadata getMapMetadataForEntry(
+      MapFeatureEntry entry) {
+    MapsMapMetadata metadata = new MapsMapMetadata();
+    if ("public".equals(entry.getPrivacy())) {
+      metadata.setSearchable(true);
+    } else {
+      metadata.setSearchable(false);
+    }
+    metadata.setTitle(entry.getTitle());
+    metadata.setDescription(entry.getSummary());
+
+    String editUri = entry.getEditUri();
+    if (editUri != null) {
+      metadata.setGDataEditUri(editUri);
+    }
+
+    return metadata;
+  }
+
+  public static String getMapidForEntry(Entry entry) {
+    return MapsClient.getMapIdFromMapEntryId(entry.getId());
+  }
+
+  public static Entry getMapEntryForMetadata(MapsMapMetadata metadata) {
+    MapFeatureEntry entry = new MapFeatureEntry();
+    entry.setEditUri(metadata.getGDataEditUri());
+    entry.setTitle(metadata.getTitle());
+    entry.setSummary(metadata.getDescription());
+    entry.setPrivacy(metadata.getSearchable() ? "public" : "unlisted");
+    entry.setAuthor("android");
+    entry.setEmail("nobody@google.com");
+    return entry;
+  }
+
+  public MapFeatureEntry getEntryForFeature(MapsFeature feature) {
+    MapFeatureEntry entry = new MapFeatureEntry();
+    entry.setTitle(feature.getTitle());
+    entry.setAuthor("android");
+    entry.setEmail("nobody@google.com");
+    entry.setCategoryScheme("http://schemas.google.com/g/2005#kind");
+    entry.setCategory("http://schemas.google.com/g/2008#mapfeature");
+    entry.setEditUri("");
+    if (!StringUtils.isEmpty(feature.getAndroidId())) {
+      entry.setAttribute("_androidId", feature.getAndroidId());
+    }
+    try {
+      StringWriter writer = new StringWriter();
+      xmlSerializer.setOutput(writer);
+      xmlSerializer.startTag(null, "Placemark");
+      xmlSerializer.attribute(null, "xmlns", "http://earth.google.com/kml/2.2");
+      xmlSerializer.startTag(null, "Style");
+      if (feature.getType() == MapsFeature.MARKER) {
+        xmlSerializer.startTag(null, "IconStyle");
+        xmlSerializer.startTag(null, "Icon");
+        xmlSerializer.startTag(null, "href");
+        xmlSerializer.text(feature.getIconUrl());
+        xmlSerializer.endTag(null, "href");
+        xmlSerializer.endTag(null, "Icon");
+        xmlSerializer.endTag(null, "IconStyle");
+      } else {
+        xmlSerializer.startTag(null, "LineStyle");
+        xmlSerializer.startTag(null, "color");
+        int color = feature.getColor();
+        // Reverse the color because KML is ABGR and Android is ARGB
+        xmlSerializer.text(Integer.toHexString(
+            Color.argb(Color.alpha(color), Color.blue(color),
+            Color.green(color), Color.red(color))));
+        xmlSerializer.endTag(null, "color");
+        xmlSerializer.startTag(null, "width");
+        xmlSerializer.text(Integer.toString(feature.getLineWidth()));
+        xmlSerializer.endTag(null, "width");
+        xmlSerializer.endTag(null, "LineStyle");
+
+        if (feature.getType() == MapsFeature.SHAPE) {
+          xmlSerializer.startTag(null, "PolyStyle");
+          xmlSerializer.startTag(null, "color");
+          int fcolor = feature.getFillColor();
+          // Reverse the color because KML is ABGR and Android is ARGB
+          xmlSerializer.text(Integer.toHexString(Color.argb(Color.alpha(fcolor),
+              Color.blue(fcolor), Color.green(fcolor), Color.red(fcolor))));
+          xmlSerializer.endTag(null, "color");
+          xmlSerializer.startTag(null, "fill");
+          xmlSerializer.text("1");
+          xmlSerializer.endTag(null, "fill");
+          xmlSerializer.startTag(null, "outline");
+          xmlSerializer.text("1");
+          xmlSerializer.endTag(null, "outline");
+          xmlSerializer.endTag(null, "PolyStyle");
+        }
+      }
+      xmlSerializer.endTag(null, "Style");
+      xmlSerializer.startTag(null, "name");
+      xmlSerializer.text(feature.getTitle());
+      xmlSerializer.endTag(null, "name");
+      xmlSerializer.startTag(null, "description");
+      xmlSerializer.cdsect(feature.getDescription());
+      xmlSerializer.endTag(null, "description");
+      StringBuilder pointBuilder = new StringBuilder();
+      for (int i = 0; i < feature.getPointCount(); ++i) {
+        if (i > 0) {
+          pointBuilder.append('\n');
+        }
+        pointBuilder.append(feature.getPoint(i).getLongitudeE6() / 1e6);
+        pointBuilder.append(',');
+        pointBuilder.append(feature.getPoint(i).getLatitudeE6() / 1e6);
+        pointBuilder.append(",0.000000");
+      }
+      String pointString = pointBuilder.toString();
+      if (feature.getType() == MapsFeature.MARKER) {
+        xmlSerializer.startTag(null, "Point");
+        xmlSerializer.startTag(null, "coordinates");
+        xmlSerializer.text(pointString);
+        xmlSerializer.endTag(null, "coordinates");
+        xmlSerializer.endTag(null, "Point");
+      } else if (feature.getType() == MapsFeature.LINE) {
+        xmlSerializer.startTag(null, "LineString");
+        xmlSerializer.startTag(null, "tessellate");
+        xmlSerializer.text("1");
+        xmlSerializer.endTag(null, "tessellate");
+        xmlSerializer.startTag(null, "coordinates");
+        xmlSerializer.text(pointString);
+        xmlSerializer.endTag(null, "coordinates");
+        xmlSerializer.endTag(null, "LineString");
+      } else {
+        xmlSerializer.startTag(null, "Polygon");
+        xmlSerializer.startTag(null, "outerBoundaryIs");
+        xmlSerializer.startTag(null, "LinearRing");
+        xmlSerializer.startTag(null, "tessellate");
+        xmlSerializer.text("1");
+        xmlSerializer.endTag(null, "tessellate");
+        xmlSerializer.startTag(null, "coordinates");
+        xmlSerializer.text(pointString + "\n"
+            + Double.toString(feature.getPoint(0).getLongitudeE6() / 1e6)
+            + ","
+            + Double.toString(feature.getPoint(0).getLatitudeE6() / 1e6)
+            + ",0.000000");
+        xmlSerializer.endTag(null, "coordinates");
+        xmlSerializer.endTag(null, "LinearRing");
+        xmlSerializer.endTag(null, "outerBoundaryIs");
+        xmlSerializer.endTag(null, "Polygon");
+      }
+      xmlSerializer.endTag(null, "Placemark");
+      xmlSerializer.flush();
+      entry.setContent(writer.toString());
+      Log.d("My Google Maps", "Edit URI: " + entry.getEditUri());
+    } catch (IOException e) {
+      e.printStackTrace();
+    }
+    return entry;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/MapsMapMetadata.java

@@ -0,0 +1,52 @@
+// Copyright 2009 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+/**
+ * Metadata about a Google Maps map.
+ */
+public class MapsMapMetadata {
+
+  private String title;
+  private String description;
+  private String gdataEditUri;
+  private boolean searchable;
+
+  public MapsMapMetadata() {
+    title = "";
+    description = "";
+    gdataEditUri = "";
+    searchable = false;
+  }
+
+  public String getTitle() {
+    return title;
+  }
+
+  public void setTitle(String title) {
+    this.title = title;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
+
+  public boolean getSearchable() {
+    return searchable;
+  }
+
+  public void setSearchable(boolean searchable) {
+    this.searchable = searchable;
+  }
+
+  public String getGDataEditUri() {
+    return gdataEditUri;
+  }
+
+  public void setGDataEditUri(String editUri) {
+    this.gdataEditUri = editUri;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/XmlMapsGDataParser.java

@@ -0,0 +1,163 @@
+// Copyright 2009 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+import com.google.wireless.gdata.data.Entry;
+import com.google.wireless.gdata.data.Feed;
+import com.google.wireless.gdata.data.XmlUtils;
+import com.google.wireless.gdata.parser.ParseException;
+import com.google.wireless.gdata.parser.xml.XmlGDataParser;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * Parser for XML gdata maps data.
+ */
+class XmlMapsGDataParser extends XmlGDataParser {
+
+  public XmlMapsGDataParser(InputStream is, XmlPullParser xpp)
+      throws ParseException {
+    super(is, xpp);
+  }
+
+  @Override
+  protected Feed createFeed() {
+    return new Feed();
+  }
+
+  @Override
+  protected Entry createEntry() {
+    return new MapFeatureEntry();
+  }
+
+  @Override
+  protected void handleExtraElementInFeed(Feed feed) {
+    // Do nothing
+  }
+
+  @Override
+  protected void handleExtraLinkInEntry(
+      String rel, String type, String href, Entry entry)
+      throws XmlPullParserException, IOException {
+    if (!(entry instanceof MapFeatureEntry)) {
+      throw new IllegalArgumentException("Expected MapFeatureEntry!");
+    }
+    if (rel.endsWith("#view")) {
+      return;
+    }
+    super.handleExtraLinkInEntry(rel, type, href, entry);
+  }
+
+  /**
+   * Parses the current entry in the XML document. Assumes that the parser is
+   * currently pointing just after an <entry>.
+   * 
+   * @param plainEntry The entry that will be filled.
+   * @throws XmlPullParserException Thrown if the XML cannot be parsed.
+   * @throws IOException Thrown if the underlying inputstream cannot be read.
+   */
+  @Override
+  protected void handleEntry(Entry plainEntry)
+      throws XmlPullParserException, IOException, ParseException {
+    XmlPullParser parser = getParser();
+    if (!(plainEntry instanceof MapFeatureEntry)) {
+      throw new IllegalArgumentException("Expected MapFeatureEntry!");
+    }
+    MapFeatureEntry entry = (MapFeatureEntry) plainEntry;
+
+    int eventType = parser.getEventType();
+    entry.setPrivacy("public");
+    while (eventType != XmlPullParser.END_DOCUMENT) {
+      switch (eventType) {
+        case XmlPullParser.START_TAG:
+          String name = parser.getName();
+          if ("entry".equals(name)) {
+            // stop parsing here.
+            return;
+          } else if ("id".equals(name)) {
+            entry.setId(XmlUtils.extractChildText(parser));
+          } else if ("title".equals(name)) {
+            entry.setTitle(XmlUtils.extractChildText(parser));
+          } else if ("link".equals(name)) {
+            String rel = parser.getAttributeValue(null /* ns */, "rel");
+            String type = parser.getAttributeValue(null /* ns */, "type");
+            String href = parser.getAttributeValue(null /* ns */, "href");
+            if ("edit".equals(rel)) {
+              entry.setEditUri(href);
+            } else if ("alternate".equals(rel) && "text/html".equals(type)) {
+              entry.setHtmlUri(href);
+            } else {
+              handleExtraLinkInEntry(rel, type, href, entry);
+            }
+          } else if ("summary".equals(name)) {
+            entry.setSummary(XmlUtils.extractChildText(parser));
+          } else if ("content".equals(name)) {
+            StringBuilder contentBuilder = new StringBuilder();
+            int parentDepth = parser.getDepth();
+            while (parser.getEventType() != XmlPullParser.END_DOCUMENT) {
+              int etype = parser.next();
+              switch (etype) {
+                case XmlPullParser.START_TAG:
+                  contentBuilder.append('<');
+                  contentBuilder.append(parser.getName());
+                  contentBuilder.append('>');
+                  break;
+                case XmlPullParser.TEXT:
+                  contentBuilder.append("<![CDATA[");
+                  contentBuilder.append(parser.getText());
+                  contentBuilder.append("]]>");
+                  break;
+                case XmlPullParser.END_TAG:
+                  if (parser.getDepth() > parentDepth) {
+                    contentBuilder.append("</");
+                    contentBuilder.append(parser.getName());
+                    contentBuilder.append('>');
+                  }
+                  break;
+              }
+              if (etype == XmlPullParser.END_TAG
+                  && parser.getDepth() == parentDepth) {
+                break;
+              }
+            }
+            entry.setContent(contentBuilder.toString());
+          } else if ("category".equals(name)) {
+            String category = parser.getAttributeValue(null /* ns */, "term");
+            if (category != null && category.length() > 0) {
+              entry.setCategory(category);
+            }
+            String categoryScheme =
+                parser.getAttributeValue(null /* ns */, "scheme");
+            if (categoryScheme != null && category.length() > 0) {
+              entry.setCategoryScheme(categoryScheme);
+            }
+          } else if ("published".equals(name)) {
+            entry.setPublicationDate(XmlUtils.extractChildText(parser));
+          } else if ("updated".equals(name)) {
+            entry.setUpdateDate(XmlUtils.extractChildText(parser));
+          } else if ("deleted".equals(name)) {
+            entry.setDeleted(true);
+          } else if ("draft".equals(name)) {
+            String draft = XmlUtils.extractChildText(parser);
+            entry.setPrivacy("yes".equals(draft) ? "unlisted" : "public");
+          } else if ("customProperty".equals(name)) {
+            String attrName = parser.getAttributeValue(null, "name");
+            String attrValue = XmlUtils.extractChildText(parser);
+            entry.setAttribute(attrName, attrValue);
+          } else if ("deleted".equals(name)) {
+            entry.setDeleted(true);
+          } else {
+            handleExtraElementInEntry(entry);
+          }
+          break;
+        default:
+          break;
+      }
+
+      eventType = parser.next();
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/XmlMapsGDataParserFactory.java

@@ -0,0 +1,94 @@
+// Copyright 2010 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+import com.google.wireless.gdata.client.GDataParserFactory;
+import com.google.wireless.gdata.data.Entry;
+import com.google.wireless.gdata.parser.GDataParser;
+import com.google.wireless.gdata.parser.ParseException;
+import com.google.wireless.gdata.parser.xml.XmlGDataParser;
+import com.google.wireless.gdata.parser.xml.XmlParserFactory;
+import com.google.wireless.gdata.serializer.GDataSerializer;
+import com.google.wireless.gdata.serializer.xml.XmlEntryGDataSerializer;
+
+import android.util.Log;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.xmlpull.v1.XmlPullParserException;
+
+/**
+ * Factory of Xml parsers for gdata maps data.
+ */
+public class XmlMapsGDataParserFactory implements GDataParserFactory {
+  private XmlParserFactory xmlFactory;
+
+  public XmlMapsGDataParserFactory(XmlParserFactory xmlFactory) {
+    this.xmlFactory = xmlFactory;
+  }
+
+  @Override
+  public GDataParser createParser(InputStream is) throws ParseException {
+    is = maybeLogCommunication(is);
+    try {
+      return new XmlGDataParser(is, xmlFactory.createParser());
+    } catch (XmlPullParserException e) {
+      e.printStackTrace();
+      return null;
+    }
+  }
+
+  @SuppressWarnings({ "unchecked", "rawtypes" })
+  @Override
+  public GDataParser createParser(Class cls, InputStream is)
+      throws ParseException {
+    is = maybeLogCommunication(is);
+    try {
+      return createParserForClass(cls, is);
+    } catch (XmlPullParserException e) {
+      e.printStackTrace();
+      return null;
+    }
+  }
+
+  private InputStream maybeLogCommunication(InputStream is)
+      throws ParseException {
+    if (MapsClient.LOG_COMMUNICATION) {
+      StringBuilder builder = new StringBuilder();
+      byte[] buffer = new byte[2048];
+      try {
+        for (int n = is.read(buffer); n >= 0; n = is.read(buffer)) {
+          String part = new String(buffer, 0, n);
+          builder.append(part);
+          Log.d("Response part", part);
+        }
+      } catch (IOException e) {
+        throw new ParseException("Could not read stream", e);
+      }
+      String whole = builder.toString();
+      Log.d("Response", whole);
+      is = new ByteArrayInputStream(whole.getBytes());
+    }
+    return is;
+  }
+
+  private GDataParser createParserForClass(
+      Class<? extends Entry> cls, InputStream is)
+      throws ParseException, XmlPullParserException {
+    if (cls == MapFeatureEntry.class) {
+      return new XmlMapsGDataParser(is, xmlFactory.createParser());
+    } else {
+      return new XmlGDataParser(is, xmlFactory.createParser());
+    }
+  }
+
+  @Override
+  public GDataSerializer createSerializer(Entry en) {
+    if (en instanceof MapFeatureEntry) {
+      return new XmlMapsGDataSerializer(xmlFactory, (MapFeatureEntry) en);
+    } else {
+      return new XmlEntryGDataSerializer(xmlFactory, en);
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/gdata/maps/XmlMapsGDataSerializer.java

@@ -0,0 +1,262 @@
+// Copyright 2010 Google Inc. All Rights Reserved.
+package com.google.android.apps.mytracks.io.gdata.maps;
+
+import com.google.wireless.gdata.data.StringUtils;
+import com.google.wireless.gdata.parser.ParseException;
+import com.google.wireless.gdata.parser.xml.XmlGDataParser;
+import com.google.wireless.gdata.parser.xml.XmlParserFactory;
+import com.google.wireless.gdata.serializer.xml.XmlEntryGDataSerializer;
+
+import android.util.Log;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.Map;
+
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlSerializer;
+
+/**
+ * Serializer of maps data for GData.
+ */
+class XmlMapsGDataSerializer extends XmlEntryGDataSerializer {
+
+  private static final String APP_NAMESPACE = "http://www.w3.org/2007/app";
+
+  private MapFeatureEntry entry;
+  private XmlParserFactory factory;
+  private OutputStream stream;
+
+  public XmlMapsGDataSerializer(XmlParserFactory factory, MapFeatureEntry entry) {
+    super(factory, entry);
+
+    this.factory = factory;
+    this.entry = entry;
+  }
+
+  @Override
+  public void serialize(OutputStream out, int format)
+      throws IOException, ParseException {
+    XmlSerializer serializer = null;
+    try {
+      serializer = factory.createSerializer();
+    } catch (XmlPullParserException e) {
+      throw new ParseException("Unable to create XmlSerializer.", e);
+    }
+
+    ByteArrayOutputStream printStream;
+
+    if (MapsClient.LOG_COMMUNICATION) {
+      printStream = new ByteArrayOutputStream();
+
+      serializer.setOutput(printStream, "UTF-8");
+    } else {
+      serializer.setOutput(out, "UTF-8");
+    }
+
+    serializer.startDocument("UTF-8", Boolean.FALSE);
+
+    declareEntryNamespaces(serializer);
+    serializer.startTag(XmlGDataParser.NAMESPACE_ATOM_URI, "entry");
+
+    if (MapsClient.LOG_COMMUNICATION) {
+      stream = printStream;
+    } else {
+      stream = out;
+    }
+    serializeEntryContents(serializer, format);
+
+    serializer.endTag(XmlGDataParser.NAMESPACE_ATOM_URI, "entry");
+    serializer.endDocument();
+    serializer.flush();
+
+    if (MapsClient.LOG_COMMUNICATION) {
+      Log.d("Request", printStream.toString());
+      out.write(printStream.toByteArray());
+      stream = out;
+    }
+  }
+
+  private final void declareEntryNamespaces(XmlSerializer serializer)
+      throws IOException {
+    serializer.setPrefix(
+        "" /* default ns */, XmlGDataParser.NAMESPACE_ATOM_URI);
+    serializer.setPrefix(
+        XmlGDataParser.NAMESPACE_GD, XmlGDataParser.NAMESPACE_GD_URI);
+    declareExtraEntryNamespaces(serializer);
+  }
+
+  private final void serializeEntryContents(XmlSerializer serializer,
+      int format) throws IOException {
+    if (format != FORMAT_CREATE) {
+      serializeId(serializer, entry.getId());
+    }
+
+    serializeTitle(serializer, entry.getTitle());
+
+    if (format != FORMAT_CREATE) {
+      serializeLink(serializer,
+          "edit" /* rel */, entry.getEditUri(), null /* type */);
+      serializeLink(serializer,
+          "alternate" /* rel */, entry.getHtmlUri(), "text/html" /* type */);
+    }
+
+    serializeSummary(serializer, entry.getSummary());
+    serializeContent(serializer, entry.getContent());
+    serializeAuthor(serializer, entry.getAuthor(), entry.getEmail());
+    serializeCategory(serializer,
+        entry.getCategory(), entry.getCategoryScheme());
+
+    if (format == FORMAT_FULL) {
+      serializePublicationDate(serializer, entry.getPublicationDate());
+    }
+
+    if (format != FORMAT_CREATE) {
+      serializeUpdateDate(serializer, entry.getUpdateDate());
+    }
+
+    serializeExtraEntryContents(serializer, format);
+  }
+
+  private static void serializeId(XmlSerializer serializer, String id)
+      throws IOException {
+    if (StringUtils.isEmpty(id)) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "id");
+    serializer.text(id);
+    serializer.endTag(null /* ns */, "id");
+  }
+
+  private static void serializeTitle(XmlSerializer serializer, String title)
+      throws IOException {
+    if (StringUtils.isEmpty(title)) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "title");
+    serializer.text(title);
+    serializer.endTag(null /* ns */, "title");
+  }
+
+  public static void serializeLink(XmlSerializer serializer, String rel,
+      String href, String type) throws IOException {
+    if (StringUtils.isEmpty(href)) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "link");
+    serializer.attribute(null /* ns */, "rel", rel);
+    serializer.attribute(null /* ns */, "href", href);
+    if (!StringUtils.isEmpty(type)) {
+      serializer.attribute(null /* ns */, "type", type);
+    }
+    serializer.endTag(null /* ns */, "link");
+  }
+
+  private static void serializeSummary(XmlSerializer serializer, String summary)
+      throws IOException {
+    if (StringUtils.isEmpty(summary)) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "summary");
+    serializer.text(summary);
+    serializer.endTag(null /* ns */, "summary");
+  }
+
+  private void serializeContent(XmlSerializer serializer, String content)
+      throws IOException {
+    if (content == null) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "content");
+    if (content.contains("</Placemark>")) {
+      serializer.attribute(
+          null /* ns */, "type", "application/vnd.google-earth.kml+xml");
+      serializer.flush();
+      stream.write(content.getBytes());
+    } else {
+      serializer.text(content);
+    }
+    serializer.endTag(null /* ns */, "content");
+  }
+
+  private static void serializeAuthor(XmlSerializer serializer, String author,
+      String email) throws IOException {
+    if (StringUtils.isEmpty(author) || StringUtils.isEmpty(email)) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "author");
+    serializer.startTag(null /* ns */, "name");
+    serializer.text(author);
+    serializer.endTag(null /* ns */, "name");
+    serializer.startTag(null /* ns */, "email");
+    serializer.text(email);
+    serializer.endTag(null /* ns */, "email");
+    serializer.endTag(null /* ns */, "author");
+  }
+
+  private static void serializeCategory(XmlSerializer serializer,
+      String category, String categoryScheme) throws IOException {
+    if (StringUtils.isEmpty(category) && StringUtils.isEmpty(categoryScheme)) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "category");
+    if (!StringUtils.isEmpty(category)) {
+      serializer.attribute(null /* ns */, "term", category);
+    }
+    if (!StringUtils.isEmpty(categoryScheme)) {
+      serializer.attribute(null /* ns */, "scheme", categoryScheme);
+    }
+    serializer.endTag(null /* ns */, "category");
+  }
+
+  private static void serializePublicationDate(XmlSerializer serializer,
+      String publicationDate) throws IOException {
+    if (StringUtils.isEmpty(publicationDate)) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "published");
+    serializer.text(publicationDate);
+    serializer.endTag(null /* ns */, "published");
+  }
+
+  private static void serializeUpdateDate(XmlSerializer serializer,
+      String updateDate) throws IOException {
+    if (StringUtils.isEmpty(updateDate)) {
+      return;
+    }
+    serializer.startTag(null /* ns */, "updated");
+    serializer.text(updateDate);
+    serializer.endTag(null /* ns */, "updated");
+  }
+
+  @Override
+  protected void serializeExtraEntryContents(XmlSerializer serializer,
+      int format) throws IOException {
+    Map<String, String> attrs = entry.getAllAttributes();
+    for (Map.Entry<String, String> attr : attrs.entrySet()) {
+      serializer.startTag("http://schemas.google.com/g/2005", "customProperty");
+      serializer.attribute(null, "name", attr.getKey());
+      serializer.text(attr.getValue());
+      serializer.endTag("http://schemas.google.com/g/2005", "customProperty");
+    }
+    String privacy = entry.getPrivacy();
+    if (!StringUtils.isEmpty(privacy)) {
+      serializer.setPrefix("app", APP_NAMESPACE);
+      if ("public".equals(privacy)) {
+        serializer.startTag(APP_NAMESPACE, "control");
+        serializer.startTag(APP_NAMESPACE, "draft");
+        serializer.text("no");
+        serializer.endTag(APP_NAMESPACE, "draft");
+        serializer.endTag(APP_NAMESPACE, "control");
+      }
+      if ("unlisted".equals(privacy)) {
+        serializer.startTag(APP_NAMESPACE, "control");
+        serializer.startTag(APP_NAMESPACE, "draft");
+        serializer.text("yes");
+        serializer.endTag(APP_NAMESPACE, "draft");
+        serializer.endTag(APP_NAMESPACE, "control");
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/maps/ChooseMapActivity.java

@@ -0,0 +1,248 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.maps;
+
+import com.google.android.apps.mytracks.io.gdata.maps.MapsMapMetadata;
+import com.google.android.apps.mytracks.io.sendtogoogle.SendRequest;
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.graphics.Color;
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+
+/**
+ * An activity to choose a Google Map.
+ *
+ * @author Jimmy Shih
+ */
+public class ChooseMapActivity extends Activity {
+
+  private static final int DIALOG_PROGRESS_ID = 0;
+  private static final int DIALOG_ERROR_ID = 1;
+
+  private SendRequest sendRequest;
+  private ChooseMapAsyncTask asyncTask;
+  @VisibleForTesting
+  ArrayAdapter<ListItem> arrayAdapter;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    sendRequest = getIntent().getParcelableExtra(SendRequest.SEND_REQUEST_KEY);
+    setContentView(R.layout.choose_map);
+
+    arrayAdapter = new ArrayAdapter<ListItem>(this, R.layout.choose_map_item, new ArrayList<
+        ListItem>()) {
+      @Override
+      public View getView(int position, View convertView, ViewGroup parent) {
+        if (convertView == null) {
+          convertView = getLayoutInflater().inflate(R.layout.choose_map_item, parent, false);
+        }
+        MapsMapMetadata mapData = getItem(position).getMapData();
+        
+        TextView title = (TextView) convertView.findViewById(R.id.choose_map_item_title);
+        title.setText(mapData.getTitle());
+        
+        TextView description = (TextView) convertView.findViewById(
+            R.id.choose_map_item_description);
+        String descriptionText = mapData.getDescription();
+        if (descriptionText == null || descriptionText.equals("")) {
+          description.setVisibility(View.GONE);
+        } else {
+          description.setVisibility(View.VISIBLE);
+          description.setText(descriptionText);
+        }
+
+        TextView searchStatus = (TextView) convertView.findViewById(
+            R.id.choose_map_item_search_status);
+        searchStatus.setTextColor(mapData.getSearchable() ? Color.RED : Color.GREEN);
+        searchStatus.setText(mapData.getSearchable() ? R.string.maps_list_public_label
+            : R.string.maps_list_unlisted_label);
+        return convertView;
+      }
+    };
+
+    ListView list = (ListView) findViewById(R.id.choose_map_list_view);
+    list.setEmptyView(findViewById(R.id.choose_map_empty_view));
+    list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+      @Override
+      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        startNextActivity(arrayAdapter.getItem(position).getMapId());
+      }
+    });
+    list.setAdapter(arrayAdapter);
+
+    Object retained = getLastNonConfigurationInstance();
+    if (retained instanceof ChooseMapAsyncTask) {
+      asyncTask = (ChooseMapAsyncTask) retained;
+      asyncTask.setActivity(this);
+    } else {
+      asyncTask = new ChooseMapAsyncTask(this, sendRequest.getAccount());
+      asyncTask.execute();
+    }
+  }
+
+  @Override
+  public Object onRetainNonConfigurationInstance() {
+    asyncTask.setActivity(null);
+    return asyncTask;
+  }
+
+  @Override
+  protected Dialog onCreateDialog(int id) {
+    switch (id) {
+      case DIALOG_PROGRESS_ID:
+        return DialogUtils.createSpinnerProgressDialog(
+            this, R.string.maps_list_progress_message, new DialogInterface.OnCancelListener() {
+              @Override
+              public void onCancel(DialogInterface dialog) {
+                asyncTask.cancel(true);
+                finish();
+              }
+            });
+      case DIALOG_ERROR_ID:
+        return new AlertDialog.Builder(this)
+            .setCancelable(true)
+            .setIcon(android.R.drawable.ic_dialog_alert)
+            .setMessage(R.string.maps_list_error)
+            .setOnCancelListener(new DialogInterface.OnCancelListener() {
+              @Override
+              public void onCancel(DialogInterface dialog) {
+                finish();
+              }
+            })
+            .setPositiveButton(R.string.generic_ok, new DialogInterface.OnClickListener() {
+              @Override
+              public void onClick(DialogInterface dialog, int arg1) {
+                finish();
+              }
+            })
+            .setTitle(R.string.generic_error_title)
+            .create();
+      default:
+        return null;
+    }
+  }
+
+  /**
+   * Invokes when the associated AsyncTask completes.
+   *
+   * @param success true if success
+   * @param mapIds an array of map ids
+   * @param mapData an array of map data
+   */
+  public void onAsyncTaskCompleted(
+      boolean success, ArrayList<String> mapIds, ArrayList<MapsMapMetadata> mapData) {
+    removeProgressDialog();
+    if (success) {
+      arrayAdapter.clear();
+      // To prevent displaying the emptyView message momentarily before the
+      // arrayAdapter is set, don't set the emptyView message in the xml layout.
+      // Instead, set it only when needed.
+      if (mapIds.size() == 0) {
+        TextView emptyView = (TextView) findViewById(R.id.choose_map_empty_view);
+        emptyView.setText(R.string.maps_list_no_maps);
+      } else {
+        for (int i = 0; i < mapIds.size(); i++) {
+          arrayAdapter.add(new ListItem(mapIds.get(i), mapData.get(i)));
+        }
+      }
+    } else {
+      showErrorDialog();
+    }
+  }
+
+  /**
+   * Shows the progress dialog.
+   */
+  public void showProgressDialog() {
+    showDialog(DIALOG_PROGRESS_ID);
+  }
+  
+  /**
+   * Shows the error dialog.
+   */
+  @VisibleForTesting
+  void showErrorDialog() {
+    showDialog(DIALOG_ERROR_ID);
+  }
+  
+  /**
+   * Remove the progress dialog.
+   */
+  @VisibleForTesting
+  void removeProgressDialog() {
+    removeDialog(DIALOG_PROGRESS_ID);
+  }
+
+  /**
+   * Starts the next activity, {@link SendMapsActivity}.
+   * 
+   * @param mapId the chosen map id
+   */
+  private void startNextActivity(String mapId) {
+    sendRequest.setMapId(mapId);
+    Intent intent = IntentUtils.newIntent(this, SendMapsActivity.class)
+        .putExtra(SendRequest.SEND_REQUEST_KEY, sendRequest);
+    startActivity(intent);
+    finish();
+  }
+
+  /**
+   * A class containing {@link ChooseMapActivity} list item.
+   *
+   * @author Jimmy Shih
+   */
+  @VisibleForTesting
+  class ListItem {
+    private String mapId;
+    private MapsMapMetadata mapData;
+
+    private ListItem(String mapId, MapsMapMetadata mapData) {
+      this.mapId = mapId;
+      this.mapData = mapData;
+    }
+
+    /**
+     * Gets the map id.
+     */
+    public String getMapId() {
+      return mapId;
+    }
+
+    /**
+     * Gets the map data.
+     */
+    public MapsMapMetadata getMapData() {
+      return mapData;
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/maps/ChooseMapAsyncTask.java

@@ -0,0 +1,247 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.maps;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.io.gdata.GDataClientFactory;
+import com.google.android.apps.mytracks.io.gdata.maps.MapFeatureEntry;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsClient;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsConstants;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsGDataConverter;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsMapMetadata;
+import com.google.android.apps.mytracks.io.gdata.maps.XmlMapsGDataParserFactory;
+import com.google.android.common.gdata.AndroidXmlParserFactory;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.wireless.gdata.client.GDataClient;
+import com.google.wireless.gdata.client.HttpException;
+import com.google.wireless.gdata.parser.GDataParser;
+import com.google.wireless.gdata.parser.ParseException;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorException;
+import android.accounts.OperationCanceledException;
+import android.content.Context;
+import android.os.AsyncTask;
+import android.util.Log;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+/**
+ * AsyncTask for {@link ChooseMapActivity} to get all the maps from Google Maps.
+ *
+ * @author Jimmy Shih
+ */
+public class ChooseMapAsyncTask extends AsyncTask<Void, Integer, Boolean> {
+  private static final String TAG = ChooseMapAsyncTask.class.getSimpleName();
+
+  private ChooseMapActivity activity;
+  private final Account account;
+  private final Context context;
+  private final GDataClient gDataClient;
+  private final MapsClient mapsClient;
+
+  /**
+   * True if can retry sending to Google Fusion Tables.
+   */
+  private boolean canRetry;
+
+  /**
+   * True if the AsyncTask has completed.
+   */
+  private boolean completed;
+
+  /**
+   * True if the result is success.
+   */
+  private boolean success;
+
+  // The following variables are for per request states
+  private String authToken;
+  private ArrayList<String> mapIds;
+  private ArrayList<MapsMapMetadata> mapData;
+
+  public ChooseMapAsyncTask(ChooseMapActivity activity, Account account) {
+    this(activity, account, activity.getApplicationContext(), GDataClientFactory
+        .getGDataClient(activity.getApplicationContext()), new MapsClient(
+        GDataClientFactory.getGDataClient(activity.getApplicationContext()),
+        new XmlMapsGDataParserFactory(new AndroidXmlParserFactory())));
+  }
+
+	/**
+	 * Creates this constructor for test.
+	 */
+	public ChooseMapAsyncTask(ChooseMapActivity activity, Account account,
+			Context context, GDataClient gDataClient, MapsClient mapsClient) {
+		this.activity = activity;
+		this.account = account;
+
+		this.context = context;
+		this.gDataClient = gDataClient;
+		this.mapsClient = mapsClient;
+
+		canRetry = true;
+		completed = false;
+		success = false;
+	}
+
+  /**
+   * Sets the activity associated with this AyncTask.
+   *
+   * @param activity the activity.
+   */
+  public void setActivity(ChooseMapActivity activity) {
+    this.activity = activity;
+    if (completed && activity != null) {
+      activity.onAsyncTaskCompleted(success, mapIds, mapData);
+    }
+  }
+
+  @Override
+  protected void onPreExecute() {
+    activity.showProgressDialog();
+  }
+
+  @Override
+  protected Boolean doInBackground(Void... params) {
+    try {
+      return getMaps();
+    } finally {
+      if (gDataClient != null) {
+        gDataClient.close();
+      } 
+    }
+  }
+
+  @Override
+  protected void onPostExecute(Boolean result) {
+    success = result;
+    completed = true;
+    if (activity != null) {
+      activity.onAsyncTaskCompleted(success, mapIds, mapData);
+    }
+  }
+
+  /**
+   * Gets all the maps from Google Maps.
+   *
+   * @return true if success.
+   */
+  @VisibleForTesting
+  boolean getMaps() {
+    // Reset the per request states
+    authToken = null;
+    mapIds = new ArrayList<String>();
+    mapData = new ArrayList<MapsMapMetadata>();
+
+    try {
+      authToken = AccountManager.get(context).blockingGetAuthToken(
+          account, MapsConstants.SERVICE_NAME, false);
+    } catch (OperationCanceledException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryUpload();
+    } catch (AuthenticatorException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryUpload();
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryUpload();
+    }
+
+    if (isCancelled()) {
+      return false;
+    }
+    GDataParser gDataParser = null;
+    try {
+      gDataParser = mapsClient.getParserForFeed(
+          MapFeatureEntry.class, MapsClient.getMapsFeed(), authToken);
+      gDataParser.init();
+      while (gDataParser.hasMoreData()) {
+        MapFeatureEntry entry = (MapFeatureEntry) gDataParser.readNextEntry(null);
+        mapIds.add(MapsGDataConverter.getMapidForEntry(entry));
+        mapData.add(MapsGDataConverter.getMapMetadataForEntry(entry));
+      }
+    } catch (ParseException e) {
+      Log.d(TAG, "Unable to get maps", e);
+      return retryUpload();
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to get maps", e);
+      return retryUpload();
+    } catch (HttpException e) {
+      Log.d(TAG, "Unable to get maps", e);
+      return retryUpload();
+    } finally {
+      if (gDataParser != null) {
+        gDataParser.close();
+      }
+    }
+
+    return true;
+  }
+
+  /**
+   * Retries upload. Invalidates the authToken. If can retry, invokes
+   * {@link ChooseMapAsyncTask#getMaps()}. Returns false if cannot retry.
+   */
+  @VisibleForTesting
+  boolean retryUpload() {
+    if (isCancelled()) {
+      return false;
+    }
+
+    AccountManager.get(context).invalidateAuthToken(Constants.ACCOUNT_TYPE, authToken);
+    if (canRetry) {
+      canRetry = false;
+      return getMaps();
+    }
+    return false;
+  }
+  
+  /**
+   * Gets the complete status of task.
+   */
+  @VisibleForTesting
+  boolean getCompleted() {
+    return completed;
+  }
+  
+  /**
+   * Sets the complete status of task.
+   * @param completed
+   */
+  @VisibleForTesting
+  void setCompleted(boolean completed) {
+    this.completed = completed;
+  }
+  
+  /**
+   * Sets the status of canRetry.
+   * @param canRetry status of canRetry
+   */
+  @VisibleForTesting
+  void setCanRetry(boolean canRetry) {
+    this.canRetry = canRetry;
+  }
+  
+  /**
+   * Gets the status of canRetry.
+   */
+  @VisibleForTesting
+  boolean getCanRetry() {
+    return canRetry;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/maps/SendMapsActivity.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.maps;
+
+import com.google.android.apps.mytracks.io.docs.SendDocsActivity;
+import com.google.android.apps.mytracks.io.fusiontables.SendFusionTablesActivity;
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendActivity;
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendAsyncTask;
+import com.google.android.apps.mytracks.io.sendtogoogle.SendRequest;
+import com.google.android.apps.mytracks.io.sendtogoogle.UploadResultActivity;
+import com.google.android.apps.mytracks.util.IntentUtils;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Intent;
+
+/**
+ * An activity to send a track to Google Maps.
+ *
+ * @author Jimmy Shih
+ */
+public class SendMapsActivity extends AbstractSendActivity {
+
+  @Override
+  protected AbstractSendAsyncTask createAsyncTask() {
+    return new SendMapsAsyncTask(
+        this, sendRequest.getTrackId(), sendRequest.getAccount(), sendRequest.getMapId());
+  }
+
+  @Override
+  protected String getServiceName() {
+    return getString(R.string.send_google_maps);
+  }
+
+  @Override
+  protected void startNextActivity(boolean success, boolean isCancel) {
+    sendRequest.setMapsSuccess(success);
+    Class<?> next = getNextClass(sendRequest, isCancel);
+    Intent intent = IntentUtils.newIntent(this, next)
+        .putExtra(SendRequest.SEND_REQUEST_KEY, sendRequest);
+    startActivity(intent);
+    finish();
+  }
+  
+  @VisibleForTesting
+  Class<?> getNextClass(SendRequest request, boolean isCancel) {
+    if (isCancel) {
+      return UploadResultActivity.class;
+    } else {
+      if (request.isSendFusionTables()) {
+        return SendFusionTablesActivity.class;
+      } else if (request.isSendDocs()) {
+        return SendDocsActivity.class;
+      } else {
+        return UploadResultActivity.class;
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/maps/SendMapsAsyncTask.java

@@ -0,0 +1,543 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.maps;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.content.DescriptionGenerator;
+import com.google.android.apps.mytracks.content.DescriptionGeneratorImpl;
+import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.io.gdata.GDataClientFactory;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsClient;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsConstants;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsGDataConverter;
+import com.google.android.apps.mytracks.io.gdata.maps.XmlMapsGDataParserFactory;
+import com.google.android.apps.mytracks.io.sendtogoogle.AbstractSendAsyncTask;
+import com.google.android.apps.mytracks.io.sendtogoogle.SendToGoogleUtils;
+import com.google.android.apps.mytracks.stats.DoubleBuffer;
+import com.google.android.apps.mytracks.stats.TripStatisticsBuilder;
+import com.google.android.apps.mytracks.util.LocationUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.UnitConversions;
+import com.google.android.common.gdata.AndroidXmlParserFactory;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.wireless.gdata.client.GDataClient;
+import com.google.wireless.gdata.client.HttpException;
+import com.google.wireless.gdata.parser.ParseException;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorException;
+import android.accounts.OperationCanceledException;
+import android.content.Context;
+import android.database.Cursor;
+import android.location.Location;
+import android.util.Log;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Vector;
+
+import org.xmlpull.v1.XmlPullParserException;
+
+/**
+ * AsyncTask to send a track to Google Maps.
+ * <p>
+ * IMPORTANT: While this code is Apache-licensed, please notice that usage of
+ * the Google Maps servers through this API is only allowed for the My Tracks
+ * application. Other applications looking to upload maps data should look into
+ * using the Google Fusion Tables API.
+ *
+ * @author Jimmy Shih
+ */
+public class SendMapsAsyncTask extends AbstractSendAsyncTask {
+  private static final String START_ICON_URL =
+      "http://maps.google.com/mapfiles/ms/micons/green-dot.png";
+  private static final String END_ICON_URL =
+      "http://maps.google.com/mapfiles/ms/micons/red-dot.png";
+  private static final int MAX_POINTS_PER_UPLOAD = 500;
+
+  private static final int PROGRESS_FETCH_MAP_ID = 5;
+  @VisibleForTesting
+  static final int PROGRESS_UPLOAD_DATA_MIN = 10;
+  @VisibleForTesting
+  static final int PROGRESS_UPLOAD_DATA_MAX = 90;
+  private static final int PROGRESS_UPLOAD_WAYPOINTS = 95;
+  private static final int PROGRESS_COMPLETE = 100;
+
+  private static final String TAG = SendMapsAsyncTask.class.getSimpleName();
+
+  private final long trackId;
+  private final Account account;
+  private final String chooseMapId;
+  private final MyTracksProviderUtils myTracksProviderUtils;
+  private final Context context;
+  private final GDataClient gDataClient;
+  private final MapsClient mapsClient;
+
+  // The following variables are for per upload states
+  private MapsGDataConverter mapsGDataConverter;
+  private String authToken;
+  private String mapId;
+  int currentSegment;
+
+  public SendMapsAsyncTask(SendMapsActivity activity, long trackId, Account account,
+      String chooseMapId) {
+    this(activity, trackId, account, chooseMapId, MyTracksProviderUtils.Factory.get(activity
+        .getApplicationContext()));
+  }
+  
+  /**
+   * This constructor is created for test.
+   */
+  @VisibleForTesting
+  public SendMapsAsyncTask (
+      SendMapsActivity activity, long trackId, Account account, String chooseMapId, MyTracksProviderUtils myTracksProviderUtils) {
+    super(activity);
+    this.trackId = trackId;
+    this.account = account;
+    this.chooseMapId = chooseMapId;
+    this.myTracksProviderUtils = myTracksProviderUtils;
+    context = activity.getApplicationContext();
+    
+    gDataClient = GDataClientFactory.getGDataClient(context);
+    mapsClient = new MapsClient(
+        gDataClient, new XmlMapsGDataParserFactory(new AndroidXmlParserFactory()));
+  }
+
+  @Override
+  protected void closeConnection() {
+    if (gDataClient != null) {
+      gDataClient.close();
+    }
+  }
+
+  @Override
+  protected void saveResult() {
+    Track track = myTracksProviderUtils.getTrack(trackId);
+    if (track == null) {
+      Log.d(TAG, "No track for " + trackId);
+      return;
+    }
+    track.setMapId(mapId);
+    myTracksProviderUtils.updateTrack(track);
+  }
+
+  @Override
+  protected boolean performTask() {
+    // Reset the per upload states
+    mapsGDataConverter = null;
+    authToken = null;
+    mapId = null;
+    currentSegment = 1;
+
+    // Create a maps gdata converter
+    try {
+      mapsGDataConverter = new MapsGDataConverter();
+    } catch (XmlPullParserException e) {
+      Log.d(TAG, "Unable to create a maps gdata converter", e);
+      return false;
+    }
+    
+    // Get auth token
+    try {
+      authToken = AccountManager.get(context).blockingGetAuthToken(
+          account, MapsConstants.SERVICE_NAME, false);
+    } catch (OperationCanceledException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    } catch (AuthenticatorException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to get auth token", e);
+      return retryTask();
+    }
+
+    // Get the track
+    Track track = myTracksProviderUtils.getTrack(trackId);
+    if (track == null) {
+      Log.d(TAG, "No track for " + trackId);
+      return false;
+    }
+
+    // Fetch the mapId, create a new map if necessary
+    publishProgress(PROGRESS_FETCH_MAP_ID);
+    if (!fetchSendMapId(track)) {
+      Log.d("TAG", "Unable to upload all track points");
+      return retryTask();
+    }
+
+    // Upload all the track points plus the start and end markers
+    publishProgress(PROGRESS_UPLOAD_DATA_MIN);
+    if (!uploadAllTrackPoints(track)) {
+      Log.d("TAG", "Unable to upload all track points");
+      return retryTask();
+    }
+
+    // Upload all the waypoints
+    publishProgress(PROGRESS_UPLOAD_WAYPOINTS);
+    if (!uploadWaypoints()) {
+      Log.d("TAG", "Unable to upload waypoints");
+      return false;
+    }
+
+    publishProgress(PROGRESS_COMPLETE);
+    return true;
+  }
+
+  @Override
+  protected void invalidateToken() {
+    AccountManager.get(context).invalidateAuthToken(Constants.ACCOUNT_TYPE, authToken);
+  }
+
+  /**
+   * Fetches the {@link SendMapsAsyncTask#mapId} instance variable for
+   * sending a track to Google Maps.
+   *
+   * @param track the Track
+   * @return true if able to fetch the mapId variable.
+   */
+  @VisibleForTesting
+  boolean fetchSendMapId(Track track) {
+    if (isCancelled()) {
+      return false;
+    }
+  
+    if (chooseMapId != null) {
+      mapId = chooseMapId;
+      return true;
+    } else {
+      boolean defaultMapPublic = PreferencesUtils.getBoolean(
+          context, R.string.default_map_public_key, PreferencesUtils.DEFAULT_MAP_PUBLIC_DEFAULT);
+      try {
+        String description = track.getCategory() + "\n" + track.getDescription() + "\n"
+            + context.getString(R.string.send_google_by_my_tracks, "", "");
+        mapId = SendMapsUtils.createNewMap(
+            track.getName(), description, defaultMapPublic, mapsClient, authToken);
+      } catch (ParseException e) {
+        Log.d(TAG, "Unable to create a new map", e);
+        return false;
+      } catch (HttpException e) {
+        Log.d(TAG, "Unable to create a new map", e);
+        return false;
+      } catch (IOException e) {
+        Log.d(TAG, "Unable to create a new map", e);
+        return false;
+      }
+      return mapId != null;
+    }
+  }
+
+  /**
+   * Uploads all the points in a track.
+   *
+   * @param track the track
+   * @return true if success.
+   */
+  @VisibleForTesting
+  boolean uploadAllTrackPoints(Track track) {
+    Cursor locationsCursor = null;
+    try {
+      boolean metricUnits = PreferencesUtils.getBoolean(
+          context, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+
+      locationsCursor = myTracksProviderUtils.getLocationsCursor(trackId, 0, -1, false);
+      if (locationsCursor == null) {
+        Log.d(TAG, "Location cursor is null");
+        return false;
+      }
+      int locationsCount = locationsCursor.getCount();
+      List<Location> locations = new ArrayList<Location>(MAX_POINTS_PER_UPLOAD);
+      Location lastLocation = null;
+
+      // For chart server, limit the number of elevation readings to 250.
+      int elevationSamplingFrequency = Math.max(1, (int) (locationsCount / 250.0));
+      TripStatisticsBuilder tripStatisticsBuilder = new TripStatisticsBuilder(
+          track.getTripStatistics().getStartTime());
+      DoubleBuffer elevationBuffer = new DoubleBuffer(Constants.ELEVATION_SMOOTHING_FACTOR);
+      Vector<Double> distances = new Vector<Double>();
+      Vector<Double> elevations = new Vector<Double>();
+
+      for (int i = 0; i < locationsCount; i++) {
+        locationsCursor.moveToPosition(i);
+
+        Location location = myTracksProviderUtils.createLocation(locationsCursor);
+        locations.add(location);
+
+        if (i == 0) {
+          // Create a start marker
+          if (!uploadMarker(context.getString(R.string.marker_label_start, track.getName()), "",
+              START_ICON_URL, location)) {
+            Log.d(TAG, "Unable to create a start marker");
+            return false;
+          }
+        }
+
+        // Add to the distances and elevations vectors
+        if (LocationUtils.isValidLocation(location)) {
+          tripStatisticsBuilder.addLocation(location, location.getTime());
+          // All points go into the smoothing buffer
+          elevationBuffer.setNext(metricUnits ? location.getAltitude()
+              : location.getAltitude() * UnitConversions.M_TO_FT);
+          if (i % elevationSamplingFrequency == 0) {
+            distances.add(tripStatisticsBuilder.getStatistics().getTotalDistance());
+            elevations.add(elevationBuffer.getAverage());
+          }
+          lastLocation = location;
+        }
+
+        // Upload periodically
+        int readCount = i + 1;
+        if (readCount % MAX_POINTS_PER_UPLOAD == 0) {
+          if (!prepareAndUploadPoints(track, locations, false)) {
+            Log.d(TAG, "Unable to upload points");
+            return false;
+          }
+          updateProgress(readCount, locationsCount);
+          locations.clear();
+        }
+      }
+
+      // Do a final upload with the remaining locations
+      if (!prepareAndUploadPoints(track, locations, true)) {
+        Log.d(TAG, "Unable to upload points");
+        return false;
+      }
+
+      // Create an end marker
+      if (lastLocation != null) {
+        distances.add(tripStatisticsBuilder.getStatistics().getTotalDistance());
+        elevations.add(elevationBuffer.getAverage());
+        
+        track.setDescription(getTrackDescription(track, distances, elevations));
+        if (!uploadMarker(context.getString(R.string.marker_label_end, track.getName()),
+            track.getDescription(), END_ICON_URL, lastLocation)) {
+          Log.d(TAG, "Unable to create an end marker");
+          return false;
+        }
+      }
+      return true;
+    } finally {
+      if (locationsCursor != null) {
+        locationsCursor.close();
+      }
+    }
+  }
+  
+  /**
+   * Gets the description of a track.
+   * 
+   * @param track the track
+   * @param distances distance vectors
+   * @param elevations elevation vectors
+   * @return the description of a track.
+   */
+  @VisibleForTesting
+  String getTrackDescription(Track track, Vector<Double> distances, Vector<Double> elevations) {
+    DescriptionGenerator descriptionGenerator = new DescriptionGeneratorImpl(context);
+    return "<p>" + track.getDescription() + "</p><p>"
+        + descriptionGenerator.generateTrackDescription(track, distances, elevations, true)
+        + "</p>";
+  }
+  
+  /**
+   * Prepares and uploads a list of locations from a track.
+   *
+   * @param track the track
+   * @param locations the locations from the track
+   * @param lastBatch true if it is the last batch of locations
+   * @return true if success.
+   */
+  @VisibleForTesting
+  boolean prepareAndUploadPoints(Track track, List<Location> locations, boolean lastBatch) {
+    // Prepare locations
+    ArrayList<Track> splitTracks = SendToGoogleUtils.prepareLocations(track, locations);
+
+    // Upload segments
+    boolean onlyOneSegment = lastBatch && currentSegment == 1 && splitTracks.size() == 1;
+    for (Track segment : splitTracks) {
+      if (!onlyOneSegment) {
+        segment.setName(context.getString(
+            R.string.send_google_track_part_label, segment.getName(), currentSegment));
+      }
+      if (!uploadSegment(segment.getName(), segment.getLocations())) {
+        Log.d(TAG, "Unable to upload segment");
+        return false;
+      }
+      currentSegment++;
+    }
+    return true;
+  }
+
+  /**
+   * Uploads a marker.
+   * 
+   * @param title marker title
+   * @param description marker description
+   * @param iconUrl marker marker icon
+   * @param location marker location
+   * @return true if success.
+   */
+  @VisibleForTesting
+  boolean uploadMarker(
+      String title, String description, String iconUrl, Location location) {
+    if (isCancelled()) {
+      return false;
+    }
+    try {
+      if (!SendMapsUtils.uploadMarker(mapId, title, description, iconUrl, location, mapsClient,
+          authToken, mapsGDataConverter)) {
+        Log.d(TAG, "Unable to upload marker");
+        return false;
+      }
+    } catch (ParseException e) {
+      Log.d(TAG, "Unable to upload marker", e);
+      return false;
+    } catch (HttpException e) {
+      Log.d(TAG, "Unable to upload marker", e);
+      return false;
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to upload marker", e);
+      return false;
+    }
+    return true;
+  }
+
+  /**
+   * Uploads a segment
+   * 
+   * @param title segment title
+   * @param locations segment locations
+   * @return true if success
+   */
+  private boolean uploadSegment(String title, ArrayList<Location> locations) {
+    if (isCancelled()) {
+      return false;
+    }
+    try {
+      if (!SendMapsUtils.uploadSegment(
+          mapId, title, locations, mapsClient, authToken, mapsGDataConverter)) {
+        Log.d(TAG, "Unable to upload track points");
+        return false;
+      }
+    } catch (ParseException e) {
+      Log.d(TAG, "Unable to upload track points", e);
+      return false;
+    } catch (HttpException e) {
+      Log.d(TAG, "Unable to upload track points", e);
+      return false;
+    } catch (IOException e) {
+      Log.d(TAG, "Unable to upload track points", e);
+      return false;
+    }
+    return true;
+  }
+  
+  /**
+   * Uploads all the waypoints.
+   *
+   * @return true if success.
+   */
+  @VisibleForTesting
+  boolean uploadWaypoints() {
+    Cursor cursor = null;
+    try {
+      cursor = myTracksProviderUtils.getWaypointsCursor(
+          trackId, 0, Constants.MAX_LOADED_WAYPOINTS_POINTS);
+      if (cursor != null && cursor.moveToFirst()) {
+        // This will skip the first waypoint (it carries the stats for the
+        // track).
+        while (cursor.moveToNext()) {
+          if (isCancelled()) {
+            return false;
+          }
+          Waypoint waypoint = myTracksProviderUtils.createWaypoint(cursor);
+          try {
+            if (!SendMapsUtils.uploadWaypoint(
+                mapId, waypoint, mapsClient, authToken, mapsGDataConverter)) {
+              Log.d(TAG, "Unable to upload waypoint");
+              return false;
+            }
+          } catch (ParseException e) {
+            Log.d(TAG, "Unable to upload waypoint", e);
+            return false;
+          } catch (HttpException e) {
+            Log.d(TAG, "Unable to upload waypoint", e);
+            return false;
+          } catch (IOException e) {
+            Log.d(TAG, "Unable to upload waypoint", e);
+            return false;
+          }
+        }
+      }
+      return true;
+    } finally {
+      if (cursor != null) {
+        cursor.close();
+      }
+    }
+  }
+
+  /**
+   * Updates the progress based on the number of locations uploaded.
+   *
+   * @param uploaded the number of uploaded locations
+   * @param total the number of total locations
+   */
+  @VisibleForTesting
+  void updateProgress(int uploaded, int total) {
+    publishProgress(getPercentage(uploaded, total));
+  }
+  
+  
+  /**
+   * Count the percentage of the number of locations uploaded.
+   *
+   * @param uploaded the number of uploaded locations
+   * @param total the number of total locations
+   */
+  @VisibleForTesting
+  static int getPercentage(int uploaded, int total) {
+    double totalPercentage = (double) uploaded / total;
+    double scaledPercentage = totalPercentage
+        * (PROGRESS_UPLOAD_DATA_MAX - PROGRESS_UPLOAD_DATA_MIN) + PROGRESS_UPLOAD_DATA_MIN;
+    return (int) scaledPercentage;
+  }
+  
+  /**
+   * Gets the mapID.
+   * 
+   * @return mapId
+   */
+  @VisibleForTesting
+  String getMapId() {
+    return mapId;
+  }
+   
+  /**
+   * Sets the value of mapsGDataConverter.
+   * 
+   * @param mapsGDataConverter new value of mapsGDataConverter
+   */
+  @VisibleForTesting
+  void setMapsGDataConverter(MapsGDataConverter mapsGDataConverter) {
+    this.mapsGDataConverter = mapsGDataConverter;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/maps/SendMapsUtils.java

@@ -0,0 +1,228 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io.maps;
+
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsClient;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsFeature;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsGDataConverter;
+import com.google.android.apps.mytracks.io.gdata.maps.MapsMapMetadata;
+import com.google.android.maps.GeoPoint;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.wireless.gdata.client.HttpException;
+import com.google.wireless.gdata.data.Entry;
+import com.google.wireless.gdata.parser.ParseException;
+
+import android.location.Location;
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+/**
+ * Utilities for sending a track to Google Maps.
+ *
+ * @author Jimmy Shih
+ */
+public class SendMapsUtils {
+
+  private static final String EMPTY_TITLE = "-";
+  private static final int LINE_COLOR = 0x80FF0000;
+  private static final String TAG = SendMapsUtils.class.getSimpleName();
+
+  private SendMapsUtils() {}
+
+  /**
+   * Gets the Google Maps url for a track.
+   *
+   * @param track the track
+   * @return the url if available.
+   */
+  public static String getMapUrl(Track track) {
+    if (track == null 
+        || track.getMapId() == null 
+        || track.getMapId().length() == 0) {
+      Log.e(TAG, "Invalid track");
+      return null;
+    }
+    return MapsClient.buildMapUrl(track.getMapId());
+  }
+
+  /**
+   * Creates a new Google Map.
+   *
+   * @param title title of the map
+   * @param description description of the map
+   * @param isPublic true if the map can be public
+   * @param mapsClient the maps client
+   * @param authToken the auth token
+   * @return map id of the created map if successful.
+   */
+  public static String createNewMap(
+      String title, String description, boolean isPublic, MapsClient mapsClient, String authToken)
+      throws ParseException, HttpException, IOException {
+    String mapFeed = MapsClient.getMapsFeed();
+    MapsMapMetadata metaData = new MapsMapMetadata();
+    metaData.setTitle(title);
+    metaData.setDescription(description);
+    metaData.setSearchable(isPublic);
+    Entry entry = MapsGDataConverter.getMapEntryForMetadata(metaData);
+    Entry result = mapsClient.createEntry(mapFeed, authToken, entry);
+    if (result == null) {
+      Log.d(TAG, "No result when creating a new map");
+      return null;
+    }
+    return MapsClient.getMapIdFromMapEntryId(result.getId());
+  }
+
+  /**
+   * Uploads a start/end marker to Google Maps.
+   *
+   * @param mapId the map id
+   * @param title the marker title
+   * @param description the marker description
+   * @param iconUrl the marker icon URL
+   * @param location the marker location
+   * @param mapsClient the maps client
+   * @param authToken the auth token
+   * @param mapsGDataConverter the maps gdata converter
+   * @return true if success.
+   */
+  public static boolean uploadMarker(String mapId, String title, String description, String iconUrl,
+      Location location, MapsClient mapsClient, String authToken,
+      MapsGDataConverter mapsGDataConverter) throws ParseException, HttpException, IOException {
+    String featuresFeed = MapsClient.getFeaturesFeed(mapId);
+    MapsFeature mapsFeature = buildMapsMarkerFeature(
+        title, description, iconUrl, getGeoPoint(location));
+    Entry entry = mapsGDataConverter.getEntryForFeature(mapsFeature);
+    try {
+      mapsClient.createEntry(featuresFeed, authToken, entry);
+    } catch (IOException e) {
+      // Retry once (often IOException is thrown on a timeout)
+      Log.d(TAG, "Retry upload marker", e);
+      mapsClient.createEntry(featuresFeed, authToken, entry);
+    }
+    return true;
+  }
+
+  /**
+   * Uploads a waypoint as a marker feature to Google Maps.
+   *
+   * @param mapId the map id
+   * @param waypoint the waypoint
+   * @param mapsClient the maps client
+   * @param authToken the auth token
+   * @param mapsGDataConverter the maps gdata converter
+   * @return true if success.
+   */
+  public static boolean uploadWaypoint(String mapId, Waypoint waypoint, MapsClient mapsClient,
+      String authToken, MapsGDataConverter mapsGDataConverter)
+      throws ParseException, HttpException, IOException {
+    String featuresFeed = MapsClient.getFeaturesFeed(mapId);
+    MapsFeature feature = buildMapsMarkerFeature(waypoint.getName(), waypoint.getDescription(),
+        waypoint.getIcon(), getGeoPoint(waypoint.getLocation()));
+    Entry entry = mapsGDataConverter.getEntryForFeature(feature);
+    try {
+      mapsClient.createEntry(featuresFeed, authToken, entry);
+    } catch (IOException e) {
+      // Retry once (often IOException is thrown on a timeout)
+      Log.d(TAG, "Retry upload waypoint", e);
+      mapsClient.createEntry(featuresFeed, authToken, entry);
+    }
+    return true;
+  }
+
+  /**
+   * Uploads a segment as a line feature to Google Maps.
+   *
+   * @param mapId the map id
+   * @param title the segment title
+   * @param locations the segment locations
+   * @param mapsClient the maps client
+   * @param authToken the auth token
+   * @param mapsGDataConverter the maps gdata converter
+   * @return true if success.
+   */
+  public static boolean uploadSegment(String mapId, String title, ArrayList<Location> locations,
+      MapsClient mapsClient, String authToken, MapsGDataConverter mapsGDataConverter)
+      throws ParseException, HttpException, IOException {
+    String featuresFeed = MapsClient.getFeaturesFeed(mapId);
+    Entry entry = mapsGDataConverter.getEntryForFeature(buildMapsLineFeature(title, locations));
+    try {
+      mapsClient.createEntry(featuresFeed, authToken, entry);
+    } catch (IOException e) {
+      // Retry once (often IOException is thrown on a timeout)
+      Log.d(TAG, "Retry upload track points", e);
+      mapsClient.createEntry(featuresFeed, authToken, entry);
+    }
+    return true;
+  }
+
+  /**
+   * Builds a map marker feature.
+   *
+   * @param title feature title
+   * @param description the feature description
+   * @param iconUrl the feature icon URL
+   * @param geoPoint the marker
+   */
+  @VisibleForTesting
+  static MapsFeature buildMapsMarkerFeature(
+      String title, String description, String iconUrl, GeoPoint geoPoint) {
+    MapsFeature mapsFeature = new MapsFeature();
+    mapsFeature.setType(MapsFeature.MARKER);
+    mapsFeature.generateAndroidId();
+    // Feature must have a name (otherwise GData upload may fail)
+    mapsFeature.setTitle(TextUtils.isEmpty(title) ? EMPTY_TITLE : title);
+    mapsFeature.setDescription(description.replaceAll("\n", "<br>"));
+    mapsFeature.setIconUrl(iconUrl);
+    mapsFeature.addPoint(geoPoint);
+    return mapsFeature;
+  }
+
+  /**
+   * Builds a maps line feature from a set of locations.
+   *
+   * @param title the feature title
+   * @param locations set of locations
+   */
+  @VisibleForTesting
+  static MapsFeature buildMapsLineFeature(String title, ArrayList<Location> locations) {
+    MapsFeature mapsFeature = new MapsFeature();
+    mapsFeature.setType(MapsFeature.LINE);
+    mapsFeature.generateAndroidId();
+    // Feature must have a name (otherwise GData upload may fail)
+    mapsFeature.setTitle(TextUtils.isEmpty(title) ? EMPTY_TITLE : title);
+    mapsFeature.setColor(LINE_COLOR);
+    for (Location location : locations) {
+      mapsFeature.addPoint(getGeoPoint(location));
+    }
+    return mapsFeature;
+  }
+
+  /**
+   * Gets a {@link GeoPoint} from a {@link Location}.
+   *
+   * @param location the location
+   */
+  @VisibleForTesting
+  static GeoPoint getGeoPoint(Location location) {
+    return new GeoPoint(
+        (int) (location.getLatitude() * 1E6), (int) (location.getLongitude() * 1E6));
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/io/sendtogoogle/AbstractSendActivity.java

@@ -0,0 +1,134 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.io.sendtogoogle;
+
+import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+
+/**
+ * The abstract class for activities sending a track to Google.
+ * <p>
+ * The activity gets recreated when the screen rotates. To support the activity
+ * displaying a progress dialog, we do the following:
+ * <ul>
+ * <li>use one instance of an AyncTask to send the track</li>
+ * <li>save that instance as the last non configuration instance of the activity
+ * </li>
+ * <li>when a new activity is created, pass the activity to the AsyncTask so
+ * that the AsyncTask can update the progress dialog of the activity</li>
+ * </ul>
+ *
+ * @author Jimmy Shih
+ */
+public abstract class AbstractSendActivity extends Activity {
+
+  private static final int DIALOG_PROGRESS_ID = 0;
+
+  protected SendRequest sendRequest;
+  private AbstractSendAsyncTask asyncTask;
+  private ProgressDialog progressDialog;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    sendRequest = getIntent().getParcelableExtra(SendRequest.SEND_REQUEST_KEY);
+
+    Object retained = getLastNonConfigurationInstance();
+    if (retained instanceof AbstractSendAsyncTask) {
+      asyncTask = (AbstractSendAsyncTask) retained;
+      asyncTask.setActivity(this);
+    } else {
+      asyncTask = createAsyncTask();
+      asyncTask.execute();
+    }
+  }
+
+  @Override
+  public Object onRetainNonConfigurationInstance() {
+    asyncTask.setActivity(null);
+    return asyncTask;
+  }
+
+  @Override
+  protected Dialog onCreateDialog(int id) {
+    if (id != DIALOG_PROGRESS_ID) {
+      return null;
+    }
+    progressDialog = DialogUtils.createHorizontalProgressDialog(
+        this, R.string.send_google_progress_message, new DialogInterface.OnCancelListener() {
+          @Override
+          public void onCancel(DialogInterface dialog) {
+            asyncTask.cancel(true);
+            startNextActivity(false, true);
+          }
+        }, getServiceName());
+    return progressDialog;
+  }
+
+  /**
+   * Invokes when the associated AsyncTask completes.
+   *
+   * @param success true if the AsyncTask is successful
+   */
+  public void onAsyncTaskCompleted(boolean success) {
+    startNextActivity(success, false);
+  }
+
+  /**
+   * Shows the progress dialog.
+   */
+  public void showProgressDialog() {
+    showDialog(DIALOG_PROGRESS_ID);
+  }
+
+  /**
+   * Sets the progress dialog value.
+   *
+   * @param value the dialog value
+   */
+  public void setProgressDialogValue(int value) {
+    if (progressDialog != null) {
+      progressDialog.setIndeterminate(false);
+      progressDialog.setProgress(value);
+      progressDialog.setMax(100);
+    }
+  }
+
+  /**
+   * Creates the AsyncTask.
+   */
+  protected abstract AbstractSendAsyncTask createAsyncTask();
+
+  /**
+   * Gets the service name.
+   */
+  protected abstract String getServiceName();
+
+  /**
+   * Starts the next activity.
+   *
+   * @param success true if this activity is successful
+   * @param isCancel true if it is a cancel request
+   */
+  protected abstract void startNextActivity(boolean success, boolean isCancel);
+}