Initialize camera position only once instead of

initializing it once per onCreateView.

MyTracks/src/com/google/android/apps/mytracks/util/AnalyticsUtils.java

@@ -0,0 +1,56 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.analytics.GoogleAnalyticsTracker;
+
+import android.content.Context;
+
+/**
+ * Utitlites for sending pageviews to Google Analytics.
+ * 
+ * @author Jimmy Shih
+ */
+public class AnalyticsUtils {
+
+  private static final String UA = "UA-7222692-2";
+  private static final String PRODUCT_NAME = "android-mytracks";
+  private static GoogleAnalyticsTracker tracker;
+
+  private AnalyticsUtils() {}
+
+  /**
+   * Sends a page view.
+   * 
+   * @param context the context
+   * @param page the page
+   */
+  public static void sendPageViews(Context context, String page) {
+    if (tracker == null) {
+      tracker = GoogleAnalyticsTracker.getInstance();
+      tracker.startNewSession(UA, context);
+      tracker.setProductVersion(PRODUCT_NAME, SystemUtils.getMyTracksVersion(context));
+    }
+    tracker.trackPageView(page);
+  }
+
+  public static void dispatch() {
+    if (tracker != null) {
+      tracker.dispatch();
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/Api10Adapter.java

@@ -0,0 +1,46 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.services.sensors.BluetoothConnectionManager;
+
+import android.annotation.TargetApi;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothSocket;
+import android.util.Log;
+
+import java.io.IOException;
+
+/**
+ * API level 10 specific implementation of the {@link ApiAdapter}.
+ *
+ * @author Jimmy Shih
+ */
+@TargetApi(10)
+public class Api10Adapter extends Api9Adapter {
+
+  @Override
+  public BluetoothSocket getBluetoothSocket(BluetoothDevice bluetoothDevice) throws IOException {
+    try {
+      return bluetoothDevice.createInsecureRfcommSocketToServiceRecord(
+          BluetoothConnectionManager.MY_TRACKS_UUID);
+    } catch (IOException e) {
+      Log.d(Constants.TAG, "Unable to create insecure connection", e);
+    }
+    return bluetoothDevice.createRfcommSocketToServiceRecord(BluetoothConnectionManager.MY_TRACKS_UUID);
+  };
+}

MyTracks/src/com/google/android/apps/mytracks/util/Api11Adapter.java

@@ -0,0 +1,122 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.ContextualActionModeCallback;
+import com.google.android.maps.mytracks.R;
+
+import android.annotation.TargetApi;
+import android.app.Activity;
+import android.app.SearchManager;
+import android.content.Context;
+import android.view.ActionMode;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemLongClickListener;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.SearchView;
+import android.widget.TextView;
+
+import java.util.List;
+
+/**
+ * API level 11 specific implementation of the {@link ApiAdapter}.
+ * 
+ * @author Jimmy Shih
+ */
+@TargetApi(11)
+public class Api11Adapter extends Api10Adapter {
+
+  @Override
+  public void hideTitle(Activity activity) {
+    // Do nothing
+  }
+
+  @Override
+  public void configureActionBarHomeAsUp(Activity activity) {
+    activity.getActionBar().setDisplayHomeAsUpEnabled(true);
+  }
+
+  @Override
+  public void configureListViewContextualMenu(final Activity activity, ListView listView,
+      final ContextualActionModeCallback contextualActionModeCallback) {
+    listView.setOnItemLongClickListener(new OnItemLongClickListener() {
+      ActionMode actionMode;
+      @Override
+      public boolean onItemLongClick(
+          AdapterView<?> parent, View view, final int position, final long id) {
+        if (actionMode != null) {
+          return false;
+        }
+        actionMode = activity.startActionMode(new ActionMode.Callback() {
+          @Override
+          public boolean onCreateActionMode(ActionMode mode, Menu menu) {
+            mode.getMenuInflater().inflate(R.menu.list_context_menu, menu);
+            return true;
+          }
+          @Override
+          public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
+            // Return false to indicate no change.
+            return false;
+          }
+          @Override
+          public void onDestroyActionMode(ActionMode mode) {
+            actionMode = null;
+          }
+          @Override
+          public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
+            mode.finish();
+            return contextualActionModeCallback.onClick(item.getItemId(), position, id);
+          }
+        });
+        TextView textView = (TextView) view.findViewById(R.id.list_item_name);
+        if (textView != null) {
+          actionMode.setTitle(textView.getText());
+        }
+        view.setSelected(true);
+        return true;
+      }
+    });
+  };
+
+  @Override
+  public void configureSearchWidget(Activity activity, final MenuItem menuItem) {
+    SearchManager searchManager = (SearchManager) activity.getSystemService(Context.SEARCH_SERVICE);
+    SearchView searchView = (SearchView) menuItem.getActionView();
+    searchView.setSearchableInfo(searchManager.getSearchableInfo(activity.getComponentName()));
+    searchView.setQueryRefinementEnabled(true);
+  }
+
+  @Override
+  public boolean handleSearchMenuSelection(Activity activity) {
+    // Returns false to allow the platform to expand the search widget.
+    return false;
+  }
+
+  @Override
+  public <T> void addAllToArrayAdapter(ArrayAdapter<T> arrayAdapter, List<T> items) {
+    arrayAdapter.addAll(items);
+  }
+
+  @Override
+  public void invalidMenu(Activity activity) {
+    activity.invalidateOptionsMenu();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/Api14Adapter.java

@@ -0,0 +1,73 @@
+/*
+ * 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.util;
+
+import android.annotation.TargetApi;
+import android.app.ActionBar;
+import android.app.Activity;
+import android.view.MenuItem;
+import android.widget.SearchView;
+
+/**
+ * API level 14 specific implementation of the {@link ApiAdapter}.
+ * 
+ * @author Jimmy Shih
+ */
+@TargetApi(14)
+public class Api14Adapter extends Api11Adapter {
+
+  @Override
+  public void configureActionBarHomeAsUp(Activity activity) {
+    ActionBar actionBar = activity.getActionBar();
+    actionBar.setHomeButtonEnabled(true);
+    actionBar.setDisplayHomeAsUpEnabled(true);
+  }
+
+  @Override
+  public void configureSearchWidget(Activity activity, final MenuItem menuItem) {
+    super.configureSearchWidget(activity, menuItem);
+    SearchView searchView = (SearchView) menuItem.getActionView();
+    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
+      @Override
+      public boolean onQueryTextSubmit(String query) {
+        menuItem.collapseActionView();
+        return false;
+      }
+      @Override
+      public boolean onQueryTextChange(String newText) {
+        return false;
+      }
+    });
+    searchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() {
+        @Override
+      public boolean onSuggestionSelect(int position) {
+        return false;
+      }
+      @Override
+      public boolean onSuggestionClick(int position) {
+        menuItem.collapseActionView();
+        return false;
+      }
+    });
+  }
+
+  @Override
+  public boolean handleSearchKey(MenuItem menuItem) {
+    menuItem.expandActionView();
+    return true;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/Api8Adapter.java

@@ -0,0 +1,139 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.ContextualActionModeCallback;
+import com.google.android.apps.mytracks.services.sensors.BluetoothConnectionManager;
+import com.google.api.client.http.HttpTransport;
+import com.google.api.client.http.apache.ApacheHttpTransport;
+
+import android.app.Activity;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothSocket;
+import android.content.SharedPreferences.Editor;
+import android.util.Log;
+import android.view.MenuItem;
+import android.view.Window;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.List;
+
+/**
+ * API level 8 specific implementation of the {@link ApiAdapter}.
+ *
+ * @author Bartlomiej Niechwiej
+ */
+public class Api8Adapter implements ApiAdapter {
+
+  @Override
+  public void applyPreferenceChanges(Editor editor) {
+    editor.commit();
+  }
+
+  @Override
+  public void enableStrictMode() {
+    // Not supported
+  }
+
+  @Override
+  public byte[] copyByteArray(byte[] input, int start, int end) {
+    int length = end - start;
+    byte[] output = new byte[length];
+    System.arraycopy(input, start, output, 0, length);
+    return output;
+  }
+
+  @Override
+  public HttpTransport getHttpTransport() {
+    return new ApacheHttpTransport();
+  }
+
+  @Override
+  public boolean isGeoCoderPresent() {
+    return true;
+  }
+
+  @Override
+  public BluetoothSocket getBluetoothSocket(BluetoothDevice bluetoothDevice) throws IOException {
+    try {
+      Class<? extends BluetoothDevice> c = bluetoothDevice.getClass();
+      Method insecure = c.getMethod("createInsecureRfcommSocket", Integer.class);
+      insecure.setAccessible(true);
+      return (BluetoothSocket) insecure.invoke(bluetoothDevice, 1);
+    } catch (SecurityException e) {
+      Log.d(Constants.TAG, "Unable to create insecure connection", e);
+    } catch (NoSuchMethodException e) {
+      Log.d(Constants.TAG, "Unable to create insecure connection", e);
+    } catch (IllegalArgumentException e) {
+      Log.d(Constants.TAG, "Unable to create insecure connection", e);
+    } catch (IllegalAccessException e) {
+      Log.d(Constants.TAG, "Unable to create insecure connection", e);
+    } catch (InvocationTargetException e) {
+      Log.d(Constants.TAG, "Unable to create insecure connection", e);
+    }
+    return bluetoothDevice.createRfcommSocketToServiceRecord(BluetoothConnectionManager.MY_TRACKS_UUID);
+  }
+
+  @Override
+  public void hideTitle(Activity activity) {
+    activity.requestWindowFeature(Window.FEATURE_NO_TITLE);
+  }
+
+  @Override
+  public void configureActionBarHomeAsUp(Activity activity) {
+    // Do nothing
+  }
+
+  @Override
+  public void configureListViewContextualMenu(Activity activity, ListView listView,
+      ContextualActionModeCallback contextualActionModeCallback) {
+    activity.registerForContextMenu(listView);
+  }
+
+  @Override
+  public void configureSearchWidget(Activity activity, MenuItem menuItem) {
+    // Do nothing
+  }
+
+  @Override
+  public boolean handleSearchMenuSelection(Activity activity) {
+    activity.onSearchRequested();
+    return true;
+  }
+
+  @Override
+  public <T> void addAllToArrayAdapter(ArrayAdapter<T> arrayAdapter, List<T> items) {
+    for (T item : items) {
+      arrayAdapter.add(item);
+    }
+  }
+
+  @Override
+  public void invalidMenu(Activity activity) {
+    // Do nothing
+  }
+
+  @Override
+  public boolean handleSearchKey(MenuItem menuItem) {
+    // Return false and allow the framework to handle the search key.
+    return false;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/Api9Adapter.java

@@ -0,0 +1,71 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.api.client.http.HttpTransport;
+import com.google.api.client.http.javanet.NetHttpTransport;
+
+import android.annotation.TargetApi;
+import android.content.SharedPreferences.Editor;
+import android.location.Geocoder;
+import android.os.StrictMode;
+import android.util.Log;
+
+import java.util.Arrays;
+
+/**
+ * API level 9 specific implementation of the {@link ApiAdapter}.
+ *
+ * @author Rodrigo Damazio
+ */
+@TargetApi(9)
+public class Api9Adapter extends Api8Adapter {
+  
+  @Override
+  public void applyPreferenceChanges(Editor editor) {
+    // Apply asynchronously
+    editor.apply();
+  }
+
+  @Override
+  public void enableStrictMode() {
+    Log.d(Constants.TAG, "Enabling strict mode");
+    StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
+        .detectAll()
+        .penaltyLog()
+        .build());
+    StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
+        .detectAll()
+        .penaltyLog()
+        .build());
+  }
+
+  @Override
+  public byte[] copyByteArray(byte[] input, int start, int end) {
+    return Arrays.copyOfRange(input, start, end);
+  }
+
+  @Override
+  public HttpTransport getHttpTransport() {
+    return new NetHttpTransport();
+  }
+
+  @Override
+  public boolean isGeoCoderPresent() {
+    return Geocoder.isPresent();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/ApiAdapter.java

@@ -0,0 +1,173 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.ContextualActionModeCallback;
+import com.google.api.client.http.HttpTransport;
+
+import android.app.Activity;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothSocket;
+import android.content.SharedPreferences;
+import android.view.MenuItem;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+
+import java.io.IOException;
+import java.util.List;
+
+/**
+ * A set of methods that may be implemented differently depending on the Android
+ * API level.
+ *
+ * @author Bartlomiej Niechwiej
+ */
+public interface ApiAdapter {
+
+  /**
+   * Applies all the changes done to a given preferences editor. Changes may or
+   * may not be applied immediately.
+   * <p>
+   * Due to changes in API level 9.
+   * 
+   * @param editor the editor
+   */
+  public void applyPreferenceChanges(SharedPreferences.Editor editor);
+
+  /**
+   * Enables strict mode where supported, only if this is a development build.
+   * <p>
+   * Due to changes in API level 9.
+   */
+  public void enableStrictMode();
+
+  /**
+   * Copies elements from an input byte array into a new byte array, from
+   * indexes start (inclusive) to end (exclusive). The end index must be less
+   * than or equal to the input length.
+   * <p>
+   * Due to changes in API level 9.
+   *
+   * @param input the input byte array
+   * @param start the start index
+   * @param end the end index
+   * @return a new array containing elements from the input byte array.
+   */
+  public byte[] copyByteArray(byte[] input, int start, int end);
+
+  /**
+   * Gets a {@link HttpTransport}.
+   * <p>
+   * Due to changes in API level 9.
+   */
+  public HttpTransport getHttpTransport();
+
+  /**
+   * Returns true if GeoCoder is present.
+   * <p>
+   * Due to changes in API level 9.
+   */
+  public boolean isGeoCoderPresent();
+
+  /**
+   * Gets a {@link BluetoothSocket}.
+   * <p>
+   * Due to changes in API level 10.
+   *
+   * @param bluetoothDevice
+   */
+  public BluetoothSocket getBluetoothSocket(BluetoothDevice bluetoothDevice) throws IOException;
+
+  /**
+   * Hides the title. If the platform supports the action bar, do nothing.
+   * Ideally, with the action bar, we would like to collapse the navigation tabs
+   * into the action bar. However, collapsing is not supported by the
+   * compatibility library.
+   * <p>
+   * Due to changes in API level 11.
+   * 
+   * @param activity the activity
+   */
+  public void hideTitle(Activity activity);
+
+  /**
+   * Configures the action bar with the Home button as an Up button. If the
+   * platform doesn't support the action bar, do nothing.
+   * <p>
+   * Due to changes in API level 11.
+   *
+   * @param activity the activity
+   */
+  public void configureActionBarHomeAsUp(Activity activity);
+
+  /**
+   * Configures the list view context menu.
+   * <p>
+   * Due to changes in API level 11.
+   *
+   * @param activity the activity
+   * @param listView the list view
+   * @param contextualActionModeCallback the callback when an item is selected
+   *          in the contextual action mode
+   */
+  public void configureListViewContextualMenu(Activity activity, ListView listView,
+      ContextualActionModeCallback contextualActionModeCallback);
+
+  /**
+   * Configures the search widget.
+   * <p>
+   * Due to changes in API level 11.
+   * 
+   * @param activity the activity
+   * @param menuItem the search menu item
+   */
+  public void configureSearchWidget(Activity activity, MenuItem menuItem);
+ 
+  /**
+   * Handles the search menu selection. Returns true if handled.
+   * <p>
+   * Due to changes in API level 11.
+   * 
+   * @param activity the activity
+   */
+  public boolean handleSearchMenuSelection(Activity activity);
+  
+  /**
+   * Adds all items to an array adapter.
+   * <p>
+   * Due to changes in API level 11.
+   *
+   * @param arrayAdapter the array adapter
+   * @param items list of items
+   */
+  public <T> void addAllToArrayAdapter(ArrayAdapter<T> arrayAdapter, List<T> items);
+
+  /**
+   * Invalidates the menu.
+   * <p>
+   * Due to changes in API level 11.
+   */
+  public void invalidMenu(Activity activity);
+
+  /**
+   * Handles the search key press. Returns true if handled.
+   * <p>
+   * Due to changes in API level 14.
+   * 
+   * @param menu the search menu
+   */
+  public boolean handleSearchKey(MenuItem menu);  
+}

MyTracks/src/com/google/android/apps/mytracks/util/ApiAdapterFactory.java

@@ -0,0 +1,53 @@
+/*
+ * 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.util;
+
+import android.os.Build;
+
+/**
+ * A factory to get the {@link ApiAdapter} for the current device.
+ *
+ * @author Rodrigo Damazio
+ */
+public class ApiAdapterFactory {
+
+  private static ApiAdapter apiAdapter;
+
+  /**
+   * Gets the {@link ApiAdapter} for the current device.
+   */
+  public static ApiAdapter getApiAdapter() {
+    if (apiAdapter == null) {
+      if (Build.VERSION.SDK_INT >= 14) {
+        apiAdapter = new Api14Adapter();
+        return apiAdapter;
+      } else if (Build.VERSION.SDK_INT >= 11) {
+        apiAdapter = new Api11Adapter();
+        return apiAdapter;
+      } else if (Build.VERSION.SDK_INT >= 10) {
+        apiAdapter = new Api10Adapter();
+        return apiAdapter;
+      } else if (Build.VERSION.SDK_INT >= 9) {
+        apiAdapter = new Api9Adapter();
+        return apiAdapter;
+      } else {
+        apiAdapter = new Api8Adapter();
+        return apiAdapter;
+      }
+    }
+    return apiAdapter;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/BluetoothDeviceUtils.java

@@ -0,0 +1,63 @@
+/*
+ * 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.util;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothClass;
+import android.bluetooth.BluetoothDevice;
+
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Utilities for dealing with bluetooth devices.
+ * 
+ * @author Rodrigo Damazio
+ */
+public class BluetoothDeviceUtils {
+
+  private BluetoothDeviceUtils() {}
+
+  /**
+   * Populates the device names and the device addresses with all the suitable
+   * bluetooth devices.
+   * 
+   * @param bluetoothAdapter the bluetooth adapter
+   * @param deviceNames list of device names
+   * @param deviceAddresses list of device addresses
+   */
+  public static void populateDeviceLists(
+      BluetoothAdapter bluetoothAdapter, List<String> deviceNames, List<String> deviceAddresses) {
+    // Ensure the bluetooth adapter is not in discovery mode.
+    bluetoothAdapter.cancelDiscovery();
+
+    Set<BluetoothDevice> pairedDevices = bluetoothAdapter.getBondedDevices();
+    for (BluetoothDevice device : pairedDevices) {
+      BluetoothClass bluetoothClass = device.getBluetoothClass();
+      if (bluetoothClass != null) {
+        // Not really sure what we want, but I know what we don't want.
+        switch (bluetoothClass.getMajorDeviceClass()) {
+          case BluetoothClass.Device.Major.COMPUTER:
+          case BluetoothClass.Device.Major.PHONE:
+            break;
+          default:
+            deviceAddresses.add(device.getAddress());
+            deviceNames.add(device.getName());
+        }
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/ChartURLGenerator.java

@@ -0,0 +1,165 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Context;
+
+import java.util.Vector;
+
+/**
+ * This class will generate google chart server url's.
+ * 
+ * @author Sandor Dornbush
+ */
+public class ChartURLGenerator {
+
+  private static final String CHARTS_BASE_URL = "http://chart.apis.google.com/chart?";
+
+  private ChartURLGenerator() {}
+
+  /**
+   * Gets a chart of a track.
+   * 
+   * @param distances An array of distance measurements
+   * @param elevations A matching array of elevation measurements
+   * @param track The track for this chart
+   * @param context The current appplication context
+   */
+  public static String getChartUrl(
+      Vector<Double> distances, Vector<Double> elevations, Track track, Context context) {
+    boolean metricUnits = PreferencesUtils.getBoolean(
+        context, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+    return getChartUrl(
+        distances, elevations, track, context.getString(R.string.stats_elevation), metricUnits);
+  }
+
+  /**
+   * Gets a chart of a track. This form is for testing without contexts.
+   * 
+   * @param distances An array of distance measurements
+   * @param elevations A matching array of elevation measurements
+   * @param track The track for this chart
+   * @param title The title for the chart
+   * @param metricUnits Should the data be displayed in metric units
+   */
+  @VisibleForTesting
+  static String getChartUrl(Vector<Double> distances, Vector<Double> elevations, Track track,
+      String title, boolean metricUnits) {
+    if (distances == null || elevations == null || track == null) {
+      return null;
+    }
+
+    if (distances.size() != elevations.size()) {
+      return null;
+    }
+
+    // Round it up.
+    TripStatistics tripStatistics = track.getTripStatistics();
+    double effectiveMaxY = tripStatistics.getMaxElevation();
+    if (!metricUnits) {
+      effectiveMaxY *= UnitConversions.M_TO_FT;
+    }
+    effectiveMaxY = ((int) (effectiveMaxY / 100)) * 100 + 100;
+
+    // Round it down.
+    double effectiveMinY = tripStatistics.getMinElevation();
+    if (!metricUnits) {
+      effectiveMinY *= UnitConversions.M_TO_FT;
+    }
+    effectiveMinY = ((int) (effectiveMinY / 100)) * 100;
+    if (tripStatistics.getMinElevation() < 0) {
+      effectiveMinY -= 100;
+    }
+
+    double ySpread = effectiveMaxY - effectiveMinY;
+
+    StringBuilder sb = new StringBuilder(CHARTS_BASE_URL);
+    sb.append("&chs=600x350");
+    sb.append("&cht=lxy");
+
+    // Title
+    sb.append("&chtt=");
+    sb.append(title);
+
+    // Labels
+    sb.append("&chxt=x,y");
+    double totalDistance = tripStatistics.getTotalDistance() * UnitConversions.M_TO_KM;
+    if (!metricUnits) {
+      totalDistance *= UnitConversions.KM_TO_MI;
+    }
+    int xInterval = ((int) (totalDistance / 6));
+    int yInterval = ((int) (ySpread / 600)) * 100;
+    if (yInterval < 100) {
+      yInterval = 25;
+    }
+    // Range
+    sb.append("&chxr=0,0,");
+    sb.append((int) totalDistance);
+    sb.append(',');
+    sb.append(xInterval);
+
+    sb.append("|1,");
+    sb.append(effectiveMinY);
+    sb.append(',');
+    sb.append(effectiveMaxY);
+    sb.append(',');
+    sb.append(yInterval);
+
+    // Line color
+    sb.append("&chco=009A00");
+
+    // Fill
+    sb.append("&chm=B,00AA00,0,0,0");
+
+    // Grid lines
+    double desiredGrids = ySpread / yInterval;
+    sb.append("&chg=100000,");
+    sb.append(100.0 / desiredGrids);
+    sb.append(",1,0");
+
+    // Data
+    sb.append("&chd=e:");
+    for (int i = 0; i < distances.size(); i++) {
+      int normalized = (int) (getNormalizedDistance(distances.elementAt(i), track) * 4095);
+      sb.append(ChartsExtendedEncoder.getEncodedValue(normalized));
+    }
+
+    sb.append(ChartsExtendedEncoder.getSeparator());
+    for (int i = 0; i < elevations.size(); i++) {
+      double value = elevations.elementAt(i);
+      if (!metricUnits) {
+        value *= UnitConversions.M_TO_FT;
+      }
+      int normalized = (int) (getNormalizedElevation(value, effectiveMinY, ySpread) * 4095);
+      sb.append(ChartsExtendedEncoder.getEncodedValue(normalized));
+    }
+    return sb.toString();
+  }
+
+  private static double getNormalizedDistance(double value, Track track) {
+    return value / track.getTripStatistics().getTotalDistance();
+  }
+
+  private static double getNormalizedElevation(double value, double effectiveMinY, double ySpread) {
+    return (value - effectiveMinY) / ySpread;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/ChartsExtendedEncoder.java

@@ -0,0 +1,51 @@
+/*
+ * 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.util;
+
+/**
+ * The singleton class representing the extended encoding of chart data.
+ */
+public class ChartsExtendedEncoder {
+
+  // ChartServer data encoding in extended mode
+  private static final String CHARTSERVER_EXTENDED_ENCODING_SEPARATOR = ",";
+  private static final String CHARTSERVER_EXTENDED_ENCODING =
+      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-.";
+  private static final int CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES =
+      CHARTSERVER_EXTENDED_ENCODING.length();
+  private static final String MISSING_POINT_EXTENDED_ENCODING = "__";
+
+  private ChartsExtendedEncoder() { }
+
+  public static String getEncodedValue(int scaled) {
+    int index1 = scaled / CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES;
+    if (index1 < 0 || index1 >= CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES) {
+      return MISSING_POINT_EXTENDED_ENCODING;
+    }
+
+    int index2 = scaled % CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES;
+    if (index2 < 0 || index2 >= CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES) {
+      return MISSING_POINT_EXTENDED_ENCODING;
+    }
+
+    return String.valueOf(CHARTSERVER_EXTENDED_ENCODING.charAt(index1))
+         + String.valueOf(CHARTSERVER_EXTENDED_ENCODING.charAt(index2));
+  }
+
+  public static String getSeparator() {
+    return CHARTSERVER_EXTENDED_ENCODING_SEPARATOR;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/DialogUtils.java

@@ -0,0 +1,125 @@
+/*
+ * 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.util;
+
+import com.google.android.maps.mytracks.R;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.ProgressDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.view.View;
+
+/**
+ * Utilities for creating dialogs.
+ *
+ * @author Jimmy Shih
+ */
+public class DialogUtils {
+
+  private DialogUtils() {}
+
+  /**
+   * Creates a confirmation dialog.
+   *
+   * @param context the context
+   * @param messageId the message id
+   * @param okListener the listener when OK is clicked
+   */
+  public static Dialog createConfirmationDialog(
+      Context context, int messageId, DialogInterface.OnClickListener okListener) {
+    return createConfirmationDialog(context, messageId, null, okListener, null);
+  }
+
+  /**
+   * Creates a confirmation dialog.
+   * 
+   * @param context the context
+   * @param messageId the messageId
+   * @param view the view
+   * @param okListener the listener when OK is clicked
+   * @param cancelListener the listener when cancel is clicked
+   */
+  public static Dialog createConfirmationDialog(
+      Context context, int messageId, View view, DialogInterface.OnClickListener okListener,
+      DialogInterface.OnClickListener cancelListener) {
+    AlertDialog.Builder builder = new AlertDialog.Builder(context)
+        .setCancelable(true)
+        .setIcon(android.R.drawable.ic_dialog_alert)
+        .setNegativeButton(android.R.string.cancel, cancelListener)
+        .setPositiveButton(android.R.string.ok, okListener)
+        .setTitle(R.string.generic_confirm_title);
+    if (messageId != -1) {
+      builder.setMessage(messageId);
+    }
+    if (view != null) {
+      builder.setView(view);
+    }
+    
+    return builder.create();
+  }
+
+  /**
+   * Creates a spinner progress dialog.
+   *
+   * @param context the context
+   * @param messageId the progress message id
+   * @param onCancelListener the cancel listener
+   */
+  public static ProgressDialog createSpinnerProgressDialog(
+      Context context, int messageId, DialogInterface.OnCancelListener onCancelListener) {
+    return createProgressDialog(true, context, messageId, onCancelListener);
+  }
+
+  /**
+   * Creates a horizontal progress dialog.
+   *
+   * @param context the context
+   * @param messageId the progress message id
+   * @param onCancelListener the cancel listener
+   * @param formatArgs the format arguments for the messageId
+   */
+  public static ProgressDialog createHorizontalProgressDialog(Context context, int messageId,
+      DialogInterface.OnCancelListener onCancelListener, Object... formatArgs) {
+    return createProgressDialog(false, context, messageId, onCancelListener, formatArgs);
+  }
+
+  /**
+   * Creates a progress dialog.
+   *
+   * @param spinner true to use the spinner style
+   * @param context the context
+   * @param messageId the progress message id
+   * @param onCancelListener the cancel listener
+   * @param formatArgs the format arguments for the message id
+   */
+  private static ProgressDialog createProgressDialog(boolean spinner, Context context,
+      int messageId, DialogInterface.OnCancelListener onCancelListener, Object... formatArgs) {
+    ProgressDialog progressDialog = new ProgressDialog(context);
+    progressDialog.setCancelable(true);
+    progressDialog.setCanceledOnTouchOutside(false);
+    progressDialog.setIcon(android.R.drawable.ic_dialog_info);
+    progressDialog.setIndeterminate(true);
+    progressDialog.setMessage(context.getString(messageId, formatArgs));
+    progressDialog.setOnCancelListener(onCancelListener);
+    progressDialog.setProgressStyle(spinner ? ProgressDialog.STYLE_SPINNER
+        : ProgressDialog.STYLE_HORIZONTAL);
+    progressDialog.setTitle(R.string.generic_progress_title);
+    return progressDialog;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/EulaUtils.java

@@ -0,0 +1,66 @@
+/*
+ * 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.util;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+
+/**
+ * Utilities for EULA.
+ * 
+ * @author Jimmy Shih
+ */
+public class EulaUtils {
+
+  private static final String EULA_PREFERENCE_FILE = "eula";
+
+  // Accepting Google mobile terms of service
+  private static final String ACCEPT_EULA_PREFERENCE_KEY = "eula.google_mobile_tos_accepted";
+  private static final String SHOW_WELCOME_PREFERENCE_KEY = "showWelcome";
+  
+  private EulaUtils() {}
+
+  public static boolean getAcceptEula(Context context) {
+    return getValue(context, ACCEPT_EULA_PREFERENCE_KEY, false);
+  }
+
+  public static void setAcceptEula(Context context) {
+    setValue(context, ACCEPT_EULA_PREFERENCE_KEY, true);
+  }
+
+  public static boolean getShowWelcome(Context context) {
+    return getValue(context, SHOW_WELCOME_PREFERENCE_KEY, true);
+  }
+
+  public static void setShowWelcome(Context context) {
+    setValue(context, SHOW_WELCOME_PREFERENCE_KEY, false);
+  }
+ 
+  private static boolean getValue(Context context, String key, boolean defaultValue) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        EULA_PREFERENCE_FILE, Context.MODE_PRIVATE);
+    return sharedPreferences.getBoolean(key, defaultValue);
+  }
+
+  private static void setValue(Context context, String key, boolean value) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        EULA_PREFERENCE_FILE, Context.MODE_PRIVATE);
+    Editor editor = sharedPreferences.edit();
+    editor.putBoolean(key, value);
+    ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/FileUtils.java

@@ -0,0 +1,204 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.os.Environment;
+
+import java.io.File;
+
+/**
+ * Utilities for dealing with files.
+ *
+ * @author Rodrigo Damazio
+ */
+public class FileUtils {
+
+  private FileUtils() {}
+
+  /**
+   * The maximum FAT32 path length. See the FAT32 spec at
+   * http://msdn.microsoft.com/en-us/windows/hardware/gg463080
+   */
+  @VisibleForTesting
+  static final int MAX_FAT32_PATH_LENGTH = 260;
+
+  /**
+   * Returns whether the SD card is available.
+   */
+  public static boolean isSdCardAvailable() {
+    return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
+  }
+
+  /**
+   * Ensures the given directory exists by creating it and its parents if
+   * necessary.
+   *
+   * @return whether the directory exists (either already existed or was
+   *         successfully created)
+   */
+  public static boolean ensureDirectoryExists(File dir) {
+    if (dir.exists() && dir.isDirectory()) {
+      return true;
+    }
+    if (dir.mkdirs()) {
+      return true;
+    }
+    return false;
+  }
+
+  /**
+   * Builds a path inside the My Tracks directory in the SD card.
+   *
+   * @param components the path components inside the mytracks directory
+   * @return the full path to the destination
+   */
+  public static String buildExternalDirectoryPath(String... components) {
+    StringBuilder dirNameBuilder = new StringBuilder();
+    dirNameBuilder.append(Environment.getExternalStorageDirectory());
+    dirNameBuilder.append(File.separatorChar);
+    dirNameBuilder.append(Constants.SDCARD_TOP_DIR);
+    for (String component : components) {
+      dirNameBuilder.append(File.separatorChar);
+      dirNameBuilder.append(component);
+    }
+    return dirNameBuilder.toString();
+  }
+
+  /**
+   * Builds a filename with the given base name (prefix) and the given
+   * extension, possibly adding a suffix to ensure the file doesn't exist.
+   *
+   * @param directory the directory the file will live in
+   * @param fileBaseName the prefix for the file name
+   * @param extension the file's extension
+   * @return the complete file name, without the directory
+   */
+  public static synchronized String buildUniqueFileName(
+      File directory, String fileBaseName, String extension) {
+    return buildUniqueFileName(directory, fileBaseName, extension, 0);
+  }
+
+  /**
+   * Builds a filename with the given base and the given extension, possibly
+   * adding a suffix to ensure the file doesn't exist.
+   *
+   * @param directory the directory the filename will be located in
+   * @param base the base for the filename
+   * @param extension the extension for the filename
+   * @param suffix the first numeric suffix to try to use, or 0 for none
+   * @return the complete filename, without the directory
+   */
+  private static String buildUniqueFileName(
+      File directory, String base, String extension, int suffix) {
+    String suffixName = "";
+    if (suffix > 0) {
+      suffixName += "(" + Integer.toString(suffix) + ")";
+    }
+    suffixName += "." + extension;
+
+    String baseName = sanitizeFileName(base);
+    baseName = truncateFileName(directory, baseName, suffixName);
+    String fullName = baseName + suffixName;
+
+    if (!new File(directory, fullName).exists()) {
+      return fullName;
+    }
+    return buildUniqueFileName(directory, base, extension, suffix + 1);
+  }
+
+  /**
+   * Sanitizes the name as a valid fat32 filename. For simplicity, fat32
+   * filename characters may be any combination of letters, digits, or
+   * characters with code point values greater than 127. Replaces the invalid
+   * characters with "_" and collapses multiple "_" together.
+   *
+   * @param name name
+   */
+  @VisibleForTesting
+  static String sanitizeFileName(String name) {
+    StringBuffer buffer = new StringBuffer(name.length());
+    for (int i = 0; i < name.length(); i++) {
+      int codePoint = name.codePointAt(i);
+      char character = name.charAt(i);
+      if (Character.isLetterOrDigit(character) || codePoint > 127 || isSpecialFat32(character)) {
+        buffer.appendCodePoint(codePoint);
+      } else {
+        buffer.append("_");
+      }
+    }
+    String result = buffer.toString();
+    return result.replaceAll("_+", "_");
+  }
+
+  /**
+   * Returns true if it is a special FAT32 character.
+   *
+   * @param character the character
+   */
+  private static boolean isSpecialFat32(char character) {
+    switch (character) {
+      case '$':
+      case '%':
+      case '\'':
+      case '-':
+      case '_':
+      case '@':
+      case '~':
+      case '`':
+      case '!':
+      case '(':
+      case ')':
+      case '{':
+      case '}':
+      case '^':
+      case '#':
+      case '&':
+      case '+':
+      case ',':
+      case ';':
+      case '=':
+      case '[':
+      case ']':
+      case ' ':
+        return true;
+      default:
+        return false;
+    }
+  }
+
+  /**
+   * Truncates the name if necessary so the filename path length (directory +
+   * name + suffix) meets the Fat32 path limit.
+   *
+   * @param directory directory
+   * @param name name
+   * @param suffix suffix
+   */
+  @VisibleForTesting
+  static String truncateFileName(File directory, String name, String suffix) {
+    // 1 at the end accounts for the FAT32 filename trailing NUL character
+    int requiredLength = directory.getPath().length() + suffix.length() + 1;
+    if (name.length() + requiredLength > MAX_FAT32_PATH_LENGTH) {
+      int limit = MAX_FAT32_PATH_LENGTH - requiredLength;
+      return name.substring(0, limit);
+    } else {
+      return name;
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/GoogleLocationUtils.java

@@ -0,0 +1,45 @@
+/*
+ * 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.util;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+
+/**
+ * Utilities for Google location settings
+ *
+ * @author Jimmy Shih
+ */
+public class GoogleLocationUtils {
+
+  public static final String
+      ACTION_GOOGLE_LOCATION_SETTINGS = "com.google.android.gsf.GOOGLE_LOCATION_SETTINGS";
+  private static final String
+      ACTION_GOOGLE_APPS_LOCATION_SETTINGS = "com.google.android.gsf.GOOGLE_APPS_LOCATION_SETTINGS";
+  
+  /**
+   * Returns true if the Google location settings is available.
+   */
+  public static boolean isAvailable(Context context) {
+    Intent intent = new Intent(ACTION_GOOGLE_APPS_LOCATION_SETTINGS);
+    ResolveInfo resolveInfo = context.getPackageManager()
+        .resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
+    return resolveInfo != null;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/IntentUtils.java

@@ -0,0 +1,106 @@
+/*
+ * 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.util;
+
+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.io.file.TrackWriterFactory.TrackFileFormat;
+import com.google.android.maps.mytracks.R;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+
+import java.io.File;
+
+/**
+ * Utilities for creating intents.
+ * 
+ * @author Jimmy Shih
+ */
+public class IntentUtils {
+
+  public static final String TEXT_PLAIN_TYPE = "text/plain";
+  private static final String BLUETOOTH_PACKAGE_NAME = "com.android.bluetooth";
+  private static final String TWITTER_PACKAGE_NAME = "com.twitter.android";
+
+  private IntentUtils() {}
+
+  /**
+   * Creates an intent with {@link Intent#FLAG_ACTIVITY_CLEAR_TOP} and
+   * {@link Intent#FLAG_ACTIVITY_NEW_TASK}.
+   * 
+   * @param context the context
+   * @param cls the class
+   */
+  public static final Intent newIntent(Context context, Class<?> cls) {
+    return new Intent(context, cls).addFlags(
+        Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
+  }
+
+  /**
+   * Creates an intent to share a track url with an app.
+   * 
+   * @param context the context
+   * @param trackId the track id
+   * @param trackUrl the track url
+   * @param packageName the sharing app package name
+   * @param className the sharing app class name
+   */
+  public static final Intent newShareUrlIntent(
+      Context context, long trackId, String trackUrl, String packageName, String className) {
+    Track track = MyTracksProviderUtils.Factory.get(context).getTrack(trackId);
+    String trackDescription = track == null ? ""
+        : new DescriptionGeneratorImpl(context).generateTrackDescription(track, null, null, false);
+    boolean urlOnly = TWITTER_PACKAGE_NAME.equals(packageName)
+        || BLUETOOTH_PACKAGE_NAME.equals(packageName);
+    
+    return new Intent(Intent.ACTION_SEND)
+        .addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT | Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP)
+        .putExtra(Intent.EXTRA_SUBJECT, context.getString(R.string.share_track_subject))
+        .putExtra(Intent.EXTRA_TEXT, urlOnly 
+            ? trackUrl 
+            : context.getString(R.string.share_track_share_url_body, trackUrl, trackDescription))
+        .setComponent(new ComponentName(packageName, className))
+        .setType(TEXT_PLAIN_TYPE);
+  }
+  
+  /**
+   * Creates an intent to share a track file with an app.
+   * 
+   * @param context the context
+   * @param trackId the track id
+   * @param filePath the file path
+   * @param trackFileFormat the track file format
+   */
+  public static final Intent newShareFileIntent(
+      Context context, long trackId, String filePath, TrackFileFormat trackFileFormat) {
+    Track track = MyTracksProviderUtils.Factory.get(context).getTrack(trackId);
+    String trackDescription = track == null ? ""
+        : new DescriptionGeneratorImpl(context).generateTrackDescription(track, null, null, false);
+
+    return new Intent(Intent.ACTION_SEND)
+        .putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(filePath)))
+        .putExtra(Intent.EXTRA_SUBJECT, context.getString(R.string.share_track_subject))
+        .putExtra(Intent.EXTRA_TEXT,
+            context.getString(R.string.share_track_share_file_body, trackDescription))
+        .putExtra(context.getString(R.string.track_id_broadcast_extra), trackId)
+        .setType(trackFileFormat.getMimeType());
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/ListItemUtils.java

@@ -0,0 +1,110 @@
+/*
+ * 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.util;
+
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+/**
+ * Utilities to display a list item.
+ * 
+ * @author Jimmy Shih
+ */
+public class ListItemUtils {
+
+  private ListItemUtils() {}
+
+  /**
+   * Sets a list item.
+   * 
+   * @param context the context
+   * @param view the list item view
+   * @param isRecording true if recording
+   * @param isPaused true if paused
+   * @param name the name value
+   * @param iconId the icon id
+   * @param iconContentDescriptionId the icon content description id
+   * @param category the category value
+   * @param totalTime the total time value
+   * @param totalDistance the total distance value
+   * @param startTime the start time value
+   * @param description the description value
+   */
+  public static void setListItem(Context context, View view, boolean isRecording, boolean isPaused,
+      int iconId, int iconContentDescriptionId, String name, String category, String totalTime,
+      String totalDistance, String startTime, String description) {
+
+    if (isRecording) {
+      iconId = isPaused ? R.drawable.track_paused : R.drawable.track_recording;
+      iconContentDescriptionId = isPaused ? R.string.icon_pause_recording
+          : R.string.icon_record_track;
+    }
+
+    ImageView iconImageView = (ImageView) view.findViewById(R.id.list_item_icon);
+    iconImageView.setImageResource(iconId);
+    iconImageView.setContentDescription(context.getString(iconContentDescriptionId));
+
+    TextView nameTextView = (TextView) view.findViewById(R.id.list_item_name);
+    nameTextView.setText(name);
+
+    TextView categoryTextView = (TextView) view.findViewById(R.id.list_item_category);
+    setTextView(categoryTextView, category, 0);
+
+    TextView totalTimeTextView = (TextView) view.findViewById(R.id.list_item_total_time);
+    setTextView(totalTimeTextView, isRecording ? null : totalTime, 0);
+
+    TextView totalDistanceTextView = (TextView) view.findViewById(R.id.list_item_total_distance);
+    setTextView(totalDistanceTextView, isRecording ? null : totalDistance, 0);
+
+    TextView startTimeTextView = (TextView) view.findViewById(R.id.list_item_start_time);
+    setTextView(startTimeTextView, isRecording ? null : startTime, 0);
+
+    TextView recordingTextView = (TextView) view.findViewById(R.id.list_item_recording);
+    String value = isRecording ? context.getString(
+        isPaused ? R.string.generic_paused : R.string.generic_recording)
+        : null;
+    int color = isRecording ? context.getResources()
+        .getColor(isPaused ? android.R.color.white : R.color.red)
+        : 0;
+    setTextView(recordingTextView, value, color);
+
+    TextView descriptionTextView = (TextView) view.findViewById(R.id.list_item_description);
+    setTextView(descriptionTextView, isRecording ? null : description, 0);
+  }
+
+  /**
+   * Sets a text view.
+   * 
+   * @param textView the text view
+   * @param value the value for the text view
+   */
+  private static void setTextView(TextView textView, String value, int color) {
+    if (value == null || value.length() == 0) {
+      textView.setVisibility(View.GONE);
+    } else {
+      textView.setVisibility(View.VISIBLE);
+      textView.setText(value);
+      if (color != 0) {
+        textView.setTextColor(color);
+      }
+    }
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/LocationUtils.java

@@ -0,0 +1,162 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.Constants;
+import com.google.android.apps.mytracks.content.Track;
+
+import android.location.Location;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.Stack;
+
+/**
+ * Utility class for decimating tracks at a given level of precision.
+ * 
+ * @author Leif Hendrik Wilden
+ */
+public class LocationUtils {
+
+  private LocationUtils() {}
+
+  /**
+   * Computes the distance on the two sphere between the point c0 and the line
+   * segment c1 to c2.
+   * 
+   * @param c0 the first coordinate
+   * @param c1 the beginning of the line segment
+   * @param c2 the end of the lone segment
+   * @return the distance in m (assuming spherical earth)
+   */
+  private static double distance(final Location c0, final Location c1, final Location c2) {
+    if (c1.equals(c2)) {
+      return c2.distanceTo(c0);
+    }
+
+    final double s0lat = c0.getLatitude() * UnitConversions.DEG_TO_RAD;
+    final double s0lng = c0.getLongitude() * UnitConversions.DEG_TO_RAD;
+    final double s1lat = c1.getLatitude() * UnitConversions.DEG_TO_RAD;
+    final double s1lng = c1.getLongitude() * UnitConversions.DEG_TO_RAD;
+    final double s2lat = c2.getLatitude() * UnitConversions.DEG_TO_RAD;
+    final double s2lng = c2.getLongitude() * UnitConversions.DEG_TO_RAD;
+
+    double s2s1lat = s2lat - s1lat;
+    double s2s1lng = s2lng - s1lng;
+    final double u = ((s0lat - s1lat) * s2s1lat + (s0lng - s1lng) * s2s1lng)
+        / (s2s1lat * s2s1lat + s2s1lng * s2s1lng);
+    if (u <= 0) {
+      return c0.distanceTo(c1);
+    }
+    if (u >= 1) {
+      return c0.distanceTo(c2);
+    }
+    Location sa = new Location("");
+    sa.setLatitude(c0.getLatitude() - c1.getLatitude());
+    sa.setLongitude(c0.getLongitude() - c1.getLongitude());
+    Location sb = new Location("");
+    sb.setLatitude(u * (c2.getLatitude() - c1.getLatitude()));
+    sb.setLongitude(u * (c2.getLongitude() - c1.getLongitude()));
+    return sa.distanceTo(sb);
+  }
+
+  /**
+   * Decimates the given locations for a given zoom level. This uses a
+   * Douglas-Peucker decimation algorithm.
+   * 
+   * @param tolerance in meters
+   * @param locations input
+   * @param decimated output
+   */
+  private static void decimate(
+      double tolerance, ArrayList<Location> locations, ArrayList<Location> decimated) {
+    final int n = locations.size();
+    if (n < 1) {
+      return;
+    }
+    int idx;
+    int maxIdx = 0;
+    Stack<int[]> stack = new Stack<int[]>();
+    double[] dists = new double[n];
+    dists[0] = 1;
+    dists[n - 1] = 1;
+    double maxDist;
+    double dist = 0.0;
+    int[] current;
+
+    if (n > 2) {
+      int[] stackVal = new int[] { 0, (n - 1) };
+      stack.push(stackVal);
+      while (stack.size() > 0) {
+        current = stack.pop();
+        maxDist = 0;
+        for (idx = current[0] + 1; idx < current[1]; ++idx) {
+          dist = LocationUtils.distance(
+              locations.get(idx), locations.get(current[0]), locations.get(current[1]));
+          if (dist > maxDist) {
+            maxDist = dist;
+            maxIdx = idx;
+          }
+        }
+        if (maxDist > tolerance) {
+          dists[maxIdx] = maxDist;
+          int[] stackValCurMax = { current[0], maxIdx };
+          stack.push(stackValCurMax);
+          int[] stackValMaxCur = { maxIdx, current[1] };
+          stack.push(stackValMaxCur);
+        }
+      }
+    }
+
+    int i = 0;
+    idx = 0;
+    decimated.clear();
+    for (Location l : locations) {
+      if (dists[idx] != 0) {
+        decimated.add(l);
+        i++;
+      }
+      idx++;
+    }
+    Log.d(Constants.TAG, "Decimating " + n + " points to " + i + " w/ tolerance = " + tolerance);
+  }
+
+  /**
+   * Decimates the given track for the given precision.
+   * 
+   * @param track a track
+   * @param precision desired precision in meters
+   */
+  public static void decimate(Track track, double precision) {
+    ArrayList<Location> decimated = new ArrayList<Location>();
+    decimate(precision, track.getLocations(), decimated);
+    track.setLocations(decimated);
+  }
+
+  /**
+   * Checks if a given location is a valid (i.e. physically possible) location
+   * on Earth. Note: The special separator locations (which have latitude = 100)
+   * will not qualify as valid. Neither will locations with lat=0 and lng=0 as
+   * these are most likely "bad" measurements which often cause trouble.
+   * 
+   * @param location the location to test
+   * @return true if the location is a valid location.
+   */
+  public static boolean isValidLocation(Location location) {
+    return location != null && Math.abs(location.getLatitude()) <= 90
+        && Math.abs(location.getLongitude()) <= 180;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/PreferencesUtils.java

@@ -0,0 +1,224 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.Constants;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+
+/**
+ * Utilities to access preferences stored in {@link SharedPreferences}.
+ * 
+ * @author Jimmy Shih
+ */
+public class PreferencesUtils {
+
+  /*
+   * Preferences values. The defaults need to match the defaults in the xml
+   * files.
+   */
+  public static final boolean ALLOW_ACCESS_DEFAULT = false;
+  public static final int AUTO_RESUME_TRACK_CURRENT_RETRY_DEFAULT = 0;
+
+  public static final int AUTO_RESUME_TRACK_TIMEOUT_ALWAYS = -1;
+  public static final int AUTO_RESUME_TRACK_TIMEOUT_DEFAULT = 10;
+  public static final int AUTO_RESUME_TRACK_TIMEOUT_NEVER = 0;
+
+  public static final String BLUETOOTH_SENSOR_DEFAULT = "";
+
+  public static final boolean CHART_BY_DISTANCE_DEFAULT = true;
+  public static final boolean CHART_SHOW_CADENCE_DEFAULT = true;
+  public static final boolean CHART_SHOW_ELEVATION_DEFAULT = true;
+  public static final boolean CHART_SHOW_HEART_RATE_DEFAULT = true;
+  public static final boolean CHART_SHOW_POWER_DEFAULT = true;
+  public static final boolean CHART_SHOW_SPEED_DEFAULT = true;
+
+  public static final String DEFAULT_ACTIVITY_DEFAULT = "";
+  public static final boolean DEFAULT_MAP_PUBLIC_DEFAULT = false;
+  public static final int FREQUENCY_OFF = 0;
+  public static final String GOOGLE_ACCOUNT_DEFAULT = "";
+  public static final int MAX_RECORDING_DISTANCE_DEFAULT = 200;
+  public static final boolean METRIC_UNITS_DEFAULT = true;
+  public static final int MIN_RECORDING_DISTANCE_DEFAULT = 5;
+
+  public static final int MIN_RECORDING_INTERVAL_ADAPT_ACCURACY = -1;
+  public static final int MIN_RECORDING_INTERVAL_ADAPT_BATTERY_LIFE = -2;
+  public static final int MIN_RECORDING_INTERVAL_DEFAULT = 0;
+
+  public static final int MIN_REQUIRED_ACCURACY_DEFAULT = 200;
+  public static final int MIN_REQUIRED_ACCURACY_EXCELLENT = 10;
+  public static final int MIN_REQUIRED_ACCURACY_POOR = 5000;
+
+  public static final boolean PICK_EXISTING_MAP_DEFAULT = false;
+  public static final long RECORDING_TRACK_ID_DEFAULT = -1L;
+  public static final boolean RECORDING_TRACK_PAUSED_DEFAULT = true;
+  public static final boolean REPORT_SPEED_DEFAULT = true;
+  public static final long SELECTED_TRACK_ID_DEFAULT = -1L;
+  public static final boolean SEND_TO_DOCS_DEFAULT = true;
+  public static final boolean SEND_TO_FUSION_TABLES_DEFAULT = true;
+  public static final boolean SEND_TO_MAPS_DEFAULT = true;
+  
+  public static final String SENSOR_TYPE_DEFAULT = "NONE";
+  
+  public static final boolean SHOW_CONFIRM_PLAY_DIALOG_DEFAULT = true;
+  public static final boolean SHOW_CONFIRM_SHARING_DIALOG_DEFAULT = true;
+  public static final int SPLIT_FREQUENCY_DEFAULT = 0;
+
+  public static final boolean STATS_SHOW_COORDINATE_DEFAULT = false;
+  public static final boolean STATS_SHOW_ELEVATION_DEFAULT = false;
+  public static final boolean STATS_SHOW_GRADE_DEFAULT = false;
+  public static final boolean STATS_SHOW_MOVING_TIME_DEFAULT = false;
+
+  public static final String TRACK_COLOR_MODE_DEFAULT = "SINGLE";
+  public static final int TRACK_COLOR_MODE_MEDIUM_DEFAULT = 15;
+  public static final int TRACK_COLOR_MODE_PERCENTAGE_DEFAULT = 25;
+  public static final int TRACK_COLOR_MODE_SLOW_DEFAULT = 9;
+
+  public static final String TRACK_NAME_DEFAULT = "LOCATION";
+
+  public static final int TRACK_WIDGET_ITEM1_DEFAULT = 3; // moving time
+  public static final int TRACK_WIDGET_ITEM2_DEFAULT = 0; // distance
+  public static final int TRACK_WIDGET_ITEM3_DEFAULT = 1; // total time
+  public static final int TRACK_WIDGET_ITEM4_DEFAULT = 2; // average speed
+  
+  public static final int VOICE_FREQUENCY_DEFAULT = 0;
+
+  private PreferencesUtils() {}
+
+  /**
+   * Gets a preference key
+   * 
+   * @param context the context
+   * @param keyId the key id
+   */
+  public static String getKey(Context context, int keyId) {
+    return context.getString(keyId);
+  }
+
+  /**
+   * Gets a boolean preference value.
+   * 
+   * @param context the context
+   * @param keyId the key id
+   * @param defaultValue the default value
+   */
+  public static boolean getBoolean(Context context, int keyId, boolean defaultValue) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    return sharedPreferences.getBoolean(getKey(context, keyId), defaultValue);
+  }
+
+  /**
+   * Sets a boolean preference value.
+   * 
+   * @param context the context
+   * @param keyId the key id
+   * @param value the value
+   */
+  public static void setBoolean(Context context, int keyId, boolean value) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    Editor editor = sharedPreferences.edit();
+    editor.putBoolean(getKey(context, keyId), value);
+    ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor);
+  }
+
+  /**
+   * Gets an integer preference value.
+   * 
+   * @param context the context
+   * @param keyId the key id
+   * @param defaultValue the default value
+   */
+  public static int getInt(Context context, int keyId, int defaultValue) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    return sharedPreferences.getInt(getKey(context, keyId), defaultValue);
+  }
+
+  /**
+   * Sets an integer preference value.
+   * 
+   * @param context the context
+   * @param keyId the key id
+   * @param value the value
+   */
+  public static void setInt(Context context, int keyId, int value) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    Editor editor = sharedPreferences.edit();
+    editor.putInt(getKey(context, keyId), value);
+    ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor);
+  }
+
+  /**
+   * Gets a long preference value.
+   * 
+   * @param context the context
+   * @param keyId the key id
+   */
+  public static long getLong(Context context, int keyId) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    return sharedPreferences.getLong(getKey(context, keyId), -1L);
+  }
+
+  /**
+   * Sets a long preference value.
+   * 
+   * @param context the context
+   * @param keyId the key id
+   * @param value the value
+   */
+  public static void setLong(Context context, int keyId, long value) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    Editor editor = sharedPreferences.edit();
+    editor.putLong(getKey(context, keyId), value);
+    ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor);
+  }
+
+  /**
+   * Gets a string preference value.
+   * 
+   * @param context the context
+   * @param keyId the key id
+   * @param defaultValue default value
+   */
+  public static String getString(Context context, int keyId, String defaultValue) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    return sharedPreferences.getString(getKey(context, keyId), defaultValue);
+  }
+
+  /**
+   * Sets a string preference value.
+   * 
+   * @param context the context
+   * @param keyId the key id
+   * @param value the value
+   */
+  public static void setString(Context context, int keyId, String value) {
+    SharedPreferences sharedPreferences = context.getSharedPreferences(
+        Constants.SETTINGS_NAME, Context.MODE_PRIVATE);
+    Editor editor = sharedPreferences.edit();
+    editor.putString(getKey(context, keyId), value);
+    ApiAdapterFactory.getApiAdapter().applyPreferenceChanges(editor);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/ResourceUtils.java

@@ -0,0 +1,93 @@
+/*
+ * 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.util;
+
+import android.content.Context;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+
+/**
+ * Utility functions for android resources.
+ *
+ * @author Sandor Dornbush
+ */
+public class ResourceUtils {
+  public static CharSequence readFile(Context activity, int id) {
+    BufferedReader in = null;
+    try {
+      in = new BufferedReader(new InputStreamReader(
+          activity.getResources().openRawResource(id)));
+      String line;
+      StringBuilder buffer = new StringBuilder();
+      while ((line = in.readLine()) != null) {
+        buffer.append(line).append('\n');
+      }
+      return buffer;
+    } catch (IOException e) {
+      return "";
+    } finally {
+      if (in != null) {
+        try {
+          in.close();
+        } catch (IOException e) {
+          // Ignore
+        }
+      }
+    }
+  }
+
+  public static void readBinaryFileToOutputStream(
+      Context activity, int id, OutputStream os) {
+    BufferedInputStream in = null;
+    BufferedOutputStream out = null;
+    try {
+      in = new BufferedInputStream(
+          activity.getResources().openRawResource(id));
+      out = new BufferedOutputStream(os);
+      int b;
+      while ((b = in.read()) != -1) {
+        out.write(b);
+      }
+      out.flush();
+    } catch (IOException e) {
+      return;
+    } finally {
+      if (in != null) {
+        try {
+          in.close();
+        } catch (IOException e) {
+          // Ignore
+        }
+      }
+
+      if (out != null) {
+        try {
+          out.close();
+        } catch (IOException e) {
+          // Ignore
+        }
+      }
+    }
+  }
+
+  private ResourceUtils() {
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/StatsUtils.java

@@ -0,0 +1,352 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.location.Location;
+import android.view.View;
+import android.widget.TextView;
+
+/**
+ * Utilities for updating the statistics UI labels and values.
+ *
+ * @author Jimmy Shih
+ */
+public class StatsUtils {
+
+  private StatsUtils() {}
+
+  /**
+   * Sets the location values.
+   *
+   * @param activity the activity
+   * @param location the location
+   * @param showAll true to show all the fields, false to show only the
+   *          elevation field
+   */
+  public static void setLocationValues(Activity activity, Location location, boolean showAll) {
+    boolean metricUnits = PreferencesUtils.getBoolean(
+        activity, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+    boolean reportSpeed = PreferencesUtils.getBoolean(
+        activity, R.string.report_speed_key, PreferencesUtils.REPORT_SPEED_DEFAULT);
+
+    // Set elevation
+    boolean showElevation = PreferencesUtils.getBoolean(
+        activity, R.string.stats_show_elevation_key, PreferencesUtils.STATS_SHOW_ELEVATION_DEFAULT);
+    if (showElevation) {
+      double altitude = location == null ? Double.NaN : location.getAltitude();
+      setElevationValue(activity, R.id.stats_elevation_value, altitude, metricUnits);
+    }
+
+    if (!showAll) {
+      return;
+    }
+
+    // Set speed/pace
+    setSpeedLabel(
+        activity, R.id.stats_speed_label, R.string.stats_speed, R.string.stats_pace, reportSpeed);
+    double speed = location == null ? Double.NaN : location.getSpeed();
+    setSpeedValue(activity, R.id.stats_speed_value, speed, metricUnits, reportSpeed);
+
+    // Set coordinate
+    boolean showCoordinate = PreferencesUtils.getBoolean(activity,
+        R.string.stats_show_coordinate_key, PreferencesUtils.STATS_SHOW_COORDINATE_DEFAULT);
+    View coordinateLabelTableRow = activity.findViewById(R.id.stats_coordinate_label_table_row);
+    View coordinateValueTableRow = activity.findViewById(R.id.stats_coordinate_value_table_row);
+    if (coordinateLabelTableRow == null || coordinateValueTableRow == null) {
+      return;
+    }
+    coordinateLabelTableRow.setVisibility(showCoordinate ? View.VISIBLE : View.GONE);
+    coordinateValueTableRow.setVisibility(showCoordinate ? View.VISIBLE : View.GONE);
+    if (showCoordinate) {
+      double latitude = location == null ? Double.NaN : location.getLatitude();
+      double longitude = location == null ? Double.NaN : location.getLongitude();
+      setCoordinateValue(activity, R.id.stats_latitude_value, latitude);
+      setCoordinateValue(activity, R.id.stats_longitude_value, longitude);
+    }
+  }
+
+  /**
+   * Sets the total time value.
+   *
+   * @param activity the activity
+   * @param totalTime the total time
+   */
+  public static void setTotalTimeValue(Activity activity, long totalTime) {
+    setTimeValue(activity, R.id.stats_total_time_value, totalTime);
+  }
+
+  /**
+   * Sets the trip statistics values.
+   *
+   * @param activity the activity
+   * @param tripStatistics the trip statistics
+   */
+  public static void setTripStatisticsValues(Activity activity, TripStatistics tripStatistics) {
+    boolean metricUnits = PreferencesUtils.getBoolean(
+        activity, R.string.metric_units_key, PreferencesUtils.METRIC_UNITS_DEFAULT);
+    boolean reportSpeed = PreferencesUtils.getBoolean(
+        activity, R.string.report_speed_key, PreferencesUtils.REPORT_SPEED_DEFAULT);
+    boolean showMovingTime = PreferencesUtils.getBoolean(activity,
+        R.string.stats_show_moving_time_key, PreferencesUtils.STATS_SHOW_MOVING_TIME_DEFAULT);
+    
+    // Set total distance
+    double totalDistance = tripStatistics == null ? Double.NaN : tripStatistics.getTotalDistance();
+    setDistanceValue(activity, R.id.stats_distance_value, totalDistance, metricUnits);
+    
+    // Set total time
+    setTimeValue(activity, R.id.stats_total_time_value,
+        tripStatistics != null ? tripStatistics.getTotalTime() : -1L);
+
+    // Set moving time
+    setItemVisibility(activity, R.id.stats_moving_time_label, R.id.stats_moving_time_spacer,
+        R.id.stats_moving_time_value, showMovingTime);
+    if (showMovingTime) {
+      setTimeValue(activity, R.id.stats_moving_time_value,
+          tripStatistics != null ? tripStatistics.getMovingTime() : -1L);
+    }
+
+    // Set average speed
+    setSpeedLabel(activity, R.id.stats_average_speed_label, R.string.stats_average_speed,
+        R.string.stats_average_pace, reportSpeed);
+    double averageSpeed = tripStatistics != null ? tripStatistics.getAverageSpeed() : Double.NaN;
+    setSpeedValue(activity, R.id.stats_average_speed_value, averageSpeed, metricUnits, reportSpeed);
+    
+    // Set average moving speed
+    setItemVisibility(activity, R.id.stats_average_moving_speed_label,
+        R.id.stats_average_moving_speed_spacer, R.id.stats_average_moving_speed_value,
+        showMovingTime);
+    if (showMovingTime) {
+      setSpeedLabel(activity, R.id.stats_average_moving_speed_label,
+          R.string.stats_average_moving_speed, R.string.stats_average_moving_pace, reportSpeed);
+      double averageMovingSpeed = tripStatistics != null ? tripStatistics.getAverageMovingSpeed()
+          : Double.NaN;
+      setSpeedValue(activity, R.id.stats_average_moving_speed_value, averageMovingSpeed,
+          metricUnits, reportSpeed);
+    }
+
+    // Set max speed
+    setSpeedLabel(activity, R.id.stats_max_speed_label, R.string.stats_max_speed,
+        R.string.stats_fastest_pace, reportSpeed);
+    double maxSpeed = tripStatistics == null ? Double.NaN : tripStatistics.getMaxSpeed();
+    setSpeedValue(activity, R.id.stats_max_speed_value, maxSpeed, metricUnits, reportSpeed);
+    
+    // Set elevation
+    boolean showElevation = PreferencesUtils.getBoolean(
+        activity, R.string.stats_show_elevation_key, PreferencesUtils.STATS_SHOW_ELEVATION_DEFAULT);
+    View elevationLabelTableRow1 = activity.findViewById(R.id.stats_elevation_label_table_row1);
+    View elevationValueTableRow1 = activity.findViewById(R.id.stats_elevation_value_table_row1);
+    View elevationLabelTableRow2 = activity.findViewById(R.id.stats_elevation_label_table_row2);
+    View elevationValueTableRow2 = activity.findViewById(R.id.stats_elevation_value_table_row2);
+    if (elevationLabelTableRow1 == null 
+        || elevationValueTableRow1 == null
+        || elevationLabelTableRow2 == null 
+        || elevationValueTableRow2 == null) {
+      return;
+    }
+    elevationLabelTableRow1.setVisibility(showElevation ? View.VISIBLE : View.GONE);
+    elevationValueTableRow1.setVisibility(showElevation ? View.VISIBLE : View.GONE);
+    elevationLabelTableRow2.setVisibility(showElevation ? View.VISIBLE : View.GONE);
+    elevationValueTableRow2.setVisibility(showElevation ? View.VISIBLE : View.GONE);
+    if (showElevation) {
+      double elevationGain = tripStatistics == null ? Double.NaN
+          : tripStatistics.getTotalElevationGain();
+      double minElevation = tripStatistics == null ? Double.NaN : tripStatistics.getMinElevation();
+      double maxElevation = tripStatistics == null ? Double.NaN : tripStatistics.getMaxElevation();
+      setElevationValue(activity, R.id.stats_elevation_gain_value, elevationGain, metricUnits);
+      setElevationValue(activity, R.id.stats_min_elevation_value, minElevation, metricUnits);
+      setElevationValue(activity, R.id.stats_max_elevation_value, maxElevation, metricUnits);
+    }
+
+    // Set grade
+    boolean showGrade = PreferencesUtils.getBoolean(
+        activity, R.string.stats_show_grade_key, PreferencesUtils.STATS_SHOW_GRADE_DEFAULT);
+    View gradeLabelTableRow = activity.findViewById(R.id.stats_grade_label_table_row);
+    View gradeValueTableRow = activity.findViewById(R.id.stats_grade_value_table_row);
+    if (gradeLabelTableRow == null || gradeValueTableRow == null) {
+      return;
+    }
+    gradeLabelTableRow.setVisibility(showGrade ? View.VISIBLE : View.GONE);
+    gradeValueTableRow.setVisibility(showGrade ? View.VISIBLE : View.GONE);
+    if (showGrade) {
+      double minGrade = tripStatistics == null ? Double.NaN : tripStatistics.getMinGrade();
+      double maxGrade = tripStatistics == null ? Double.NaN : tripStatistics.getMaxGrade();
+      setGradeValue(activity, R.id.stats_min_grade_value, minGrade);
+      setGradeValue(activity, R.id.stats_max_grade_value, maxGrade);
+    }
+  }
+
+  private static void setItemVisibility(
+      Activity activity, int labelId, int spacerId, int valueId, boolean show) {
+    View label = activity.findViewById(labelId);
+    View spacer = activity.findViewById(spacerId);
+    View value = activity.findViewById(valueId);
+    if (label != null) {
+      label.setVisibility(show ? View.VISIBLE : View.GONE);
+    }
+    if (spacer != null) {
+      spacer.setVisibility(show ? View.VISIBLE : View.GONE);
+    }
+    if (value != null) {
+      value.setVisibility(show ? View.VISIBLE : View.GONE);
+    }
+  }
+
+  /**
+   * Sets a speed label.
+   *
+   * @param activity the activity
+   * @param id the speed label resource id
+   * @param speedId the speed string id
+   * @param paceId the pace string id
+   * @param reportSpeed true to report speed
+   */
+  private static void setSpeedLabel(
+      Activity activity, int id, int speedId, int paceId, boolean reportSpeed) {
+    TextView textView = (TextView) activity.findViewById(id);
+    if (textView == null) {
+      return;
+    }
+    textView.setText(reportSpeed ? speedId : paceId);
+  }
+
+  /**
+   * Sets a speed value.
+   *
+   * @param activity the activity
+   * @param id the speed value resource id
+   * @param speed the speed in meters per second
+   * @param metricUnits true to display in metric units
+   * @param reportSpeed true to report speed
+   */
+  private static void setSpeedValue(
+      Activity activity, int id, double speed, boolean metricUnits, boolean reportSpeed) {
+    TextView textView = (TextView) activity.findViewById(id);
+    if (textView == null) {
+      return;
+    }
+    textView.setText(StringUtils.formatSpeed(activity, speed, metricUnits, reportSpeed));
+  }
+
+  /**
+   * Sets a distance value.
+   *
+   * @param activity the activity
+   * @param id the distance value resource id
+   * @param distance the distance in meters
+   * @param metricUnits true to display in metric units
+   */
+  private static void setDistanceValue(
+      Activity activity, int id, double distance, boolean metricUnits) {
+    TextView textView = (TextView) activity.findViewById(id);
+    if (textView == null) {
+      return;
+    }
+    textView.setText(StringUtils.formatDistance(activity, distance, metricUnits));
+  }
+
+  /**
+   * Sets a time value.
+   *
+   * @param activity the activity
+   * @param id the time value resource id
+   * @param time the time
+   */
+  private static void setTimeValue(Activity activity, int id, long time) {
+    TextView textView = (TextView) activity.findViewById(id);
+    if (textView == null) {
+      return;
+    }
+    String value = time == -1L ? activity.getString(R.string.value_unknown)
+        : StringUtils.formatElapsedTime(time);
+    textView.setText(value);
+  }
+
+  /**
+   * Sets an elevation value.
+   *
+   * @param activity the activity
+   * @param id the elevation value resource id
+   * @param elevation the elevation in meters
+   * @param metricUnits true to display in metric units
+   */
+  private static void setElevationValue(
+      Activity activity, int id, double elevation, boolean metricUnits) {
+    TextView textView = (TextView) activity.findViewById(id);
+    if (textView == null) {
+      return;
+    }
+    String value;
+    if (Double.isNaN(elevation) || Double.isInfinite(elevation)) {
+      value = activity.getString(R.string.value_unknown);
+    } else {
+      if (metricUnits) {
+        value = activity.getString(R.string.value_float_meter, elevation);
+      } else {
+        elevation *= UnitConversions.M_TO_FT;
+        value = activity.getString(R.string.value_float_feet, elevation);
+      }
+    }
+    textView.setText(value);
+  }
+
+  /**
+   * Sets a grade value.
+   *
+   * @param activity the activity
+   * @param id the grade value resource id
+   * @param grade the grade in fraction between 0 and 1
+   */
+  private static void setGradeValue(Activity activity, int id, double grade) {
+    TextView textView = (TextView) activity.findViewById(id);
+    if (textView == null) {
+      return;
+    }
+    String value;
+    if (Double.isNaN(grade) || Double.isInfinite(grade)) {
+      value = activity.getString(R.string.value_unknown);
+    } else {
+      value = activity.getString(R.string.value_integer_percent, Math.round(grade * 100));
+    }
+    textView.setText(value);
+  }
+
+  /**
+   * Sets a coordinate value.
+   *
+   * @param activity the activity
+   * @param id the coordinate value resource id
+   * @param coordinate the coordinate in degrees
+   */
+  private static void setCoordinateValue(Activity activity, int id, double coordinate) {
+    TextView textView = (TextView) activity.findViewById(id);
+    if (textView == null) {
+      return;
+    }
+    String value;
+    if (Double.isNaN(coordinate) || Double.isInfinite(coordinate)) {
+      value = activity.getString(R.string.value_unknown);
+    } else {
+      value = activity.getString(
+          R.string.value_coordinate_degree, Location.convert(coordinate, Location.FORMAT_DEGREES));
+    }
+    textView.setText(value);
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/StringUtils.java

@@ -0,0 +1,390 @@
+/*
+ * 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.util;
+
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+import android.text.Html;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.format.DateUtils;
+
+import java.text.ParsePosition;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.TimeZone;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * Various string manipulation methods.
+ * 
+ * @author Sandor Dornbush
+ * @author Rodrigo Damazio
+ */
+public class StringUtils {
+
+  private static final SimpleDateFormat ISO_8601_DATE_TIME_FORMAT = new SimpleDateFormat(
+      "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
+  private static final SimpleDateFormat ISO_8601_BASE = new SimpleDateFormat(
+      "yyyy-MM-dd'T'HH:mm:ss");
+  private static final Pattern ISO_8601_EXTRAS = Pattern.compile(
+      "^(\\.\\d+)?(?:Z|([+-])(\\d{2}):(\\d{2}))?$");
+  static {
+    ISO_8601_DATE_TIME_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
+    ISO_8601_BASE.setTimeZone(TimeZone.getTimeZone("UTC"));
+  }
+
+  private StringUtils() {}
+
+  /**
+   * Formats the date and time based on user's phone date/time preferences.
+   * 
+   * @param context the context
+   * @param time the time in milliseconds
+   */
+  public static String formatDateTime(Context context, long time) {
+    return android.text.format.DateFormat.getDateFormat(context).format(time) + " "
+        + DateUtils.formatDateTime(context, time, DateUtils.FORMAT_SHOW_TIME).toString();
+  }
+
+  /**
+   * Formats the relative date and time based on user's phone date/time
+   * preferences.
+   * 
+   * @param context the context
+   * @param time the time in milliseconds
+   */
+  public static String formatRelativeDateTime(Context context, long time) {
+    long now = Calendar.getInstance().getTimeInMillis();
+    if (now - time > DateUtils.WEEK_IN_MILLIS) {
+      return formatDateTime(context, time);
+    } else {
+      return DateUtils.getRelativeTimeSpanString(
+          time, now, DateUtils.MINUTE_IN_MILLIS, DateUtils.FORMAT_ABBREV_RELATIVE).toString();
+    }
+  }
+
+  /**
+   * Formats the time using the ISO 8601 date time format with fractional
+   * seconds in UTC time zone.
+   * 
+   * @param time the time in milliseconds
+   */
+  public static String formatDateTimeIso8601(long time) {
+    return ISO_8601_DATE_TIME_FORMAT.format(time);
+  }
+
+  /**
+   * Formats the elapsed timed in the form "MM:SS" or "H:MM:SS".
+   * 
+   * @param time the time in milliseconds
+   */
+  public static String formatElapsedTime(long time) {
+    return DateUtils.formatElapsedTime(time / 1000);
+  }
+
+  /**
+   * Formats the elapsed time in the form "H:MM:SS".
+   * 
+   * @param time the time in milliseconds
+   */
+  public static String formatElapsedTimeWithHour(long time) {
+    String value = formatElapsedTime(time);
+    return TextUtils.split(value, ":").length == 2 ? "0:" + value : value;
+  }
+
+  /**
+   * Formats the distance.
+   * 
+   * @param context the context
+   * @param distance the distance in meters
+   * @param metricUnits true to use metric units. False to use imperial units
+   */
+  public static String formatDistance(Context context, double distance, boolean metricUnits) {
+    if (Double.isNaN(distance) || Double.isInfinite(distance)) {
+      return context.getString(R.string.value_unknown);
+    }
+    if (metricUnits) {
+      if (distance > 500.0) {
+        distance *= UnitConversions.M_TO_KM;
+        return context.getString(R.string.value_float_kilometer, distance);
+      } else {
+        return context.getString(R.string.value_float_meter, distance);
+      }
+    } else {
+      if (distance * UnitConversions.M_TO_MI > 0.5) {
+        distance *= UnitConversions.M_TO_MI;
+        return context.getString(R.string.value_float_mile, distance);
+      } else {
+        distance *= UnitConversions.M_TO_FT;
+        return context.getString(R.string.value_float_feet, distance);
+      }
+    }
+  }
+
+  /**
+   * Gets the distance in an array of two strings. The first string is the
+   * distance. The second string is the unit.
+   * 
+   * @param context the context
+   * @param distance the distance
+   * @param metricUnits true to use metric unit
+   */
+  public static String[] getDistanceParts(Context context, double distance, boolean metricUnits) {
+    String[] result = new String[2];
+    if (Double.isNaN(distance) || Double.isInfinite(distance)) {
+      result[0] = context.getString(R.string.value_unknown);
+      result[1] = context.getString(metricUnits ? R.string.unit_meter : R.string.unit_feet);
+      return result;
+    }
+
+    int unitId;
+    if (metricUnits) {
+      if (distance > 500.0) {
+        distance *= UnitConversions.M_TO_KM;
+        unitId = R.string.unit_kilometer;
+      } else {
+        unitId = R.string.unit_meter;
+      }
+    } else {
+      if (distance * UnitConversions.M_TO_MI > 0.5) {
+        distance *= UnitConversions.M_TO_MI;
+        unitId = R.string.unit_mile;
+      } else {
+        distance *= UnitConversions.M_TO_FT;
+        unitId = R.string.unit_feet;
+      }
+    }
+    result[0] = String.format("%.2f", distance);
+    result[1] = context.getString(unitId);
+    return result;
+  }
+
+  /**
+   * Formats the speed.
+   * 
+   * @param context the context
+   * @param speed the speed in meters per second
+   * @param metricUnits true to use metric units. False to use imperial units
+   * @param reportSpeed true to report as speed. False to report as pace
+   */
+  public static String formatSpeed(
+      Context context, double speed, boolean metricUnits, boolean reportSpeed) {
+    if (Double.isNaN(speed) || Double.isInfinite(speed)) {
+      return context.getString(R.string.value_unknown);
+    }
+    speed *= UnitConversions.MS_TO_KMH;
+    if (metricUnits) {
+      if (reportSpeed) {
+        return context.getString(R.string.value_float_kilometer_hour, speed);
+      } else {
+        // convert from hours to minutes
+        double pace = speed == 0 ? 0.0 : 60.0 / speed;
+        return context.getString(R.string.value_float_minute_kilometer, pace);
+      }
+    } else {
+      speed *= UnitConversions.KM_TO_MI;
+      if (reportSpeed) {
+        return context.getString(R.string.value_float_mile_hour, speed);
+      } else {
+        // convert from hours to minutes
+        double pace = speed == 0 ? 0.0 : 60.0 / speed;
+        return context.getString(R.string.value_float_minute_mile, pace);
+      }
+    }
+  }
+
+  /**
+   * Gets the speed in an array of two strings. The first string is the
+   * speed. The second string is the unit.
+   * 
+   * @param context the context
+   * @param speed the speed
+   * @param metricUnits true to use metric unit
+   * @param reportSpeed true to report speed
+   */
+  public static String[] getSpeedParts(
+      Context context, double speed, boolean metricUnits, boolean reportSpeed) {
+    String[] result = new String[2];
+    int unitId;
+    if (metricUnits) {
+      unitId = reportSpeed ? R.string.unit_kilometer_per_hour : R.string.unit_minute_per_kilometer;
+    } else {
+      unitId = reportSpeed ? R.string.unit_mile_per_hour : R.string.unit_minute_per_mile;
+    }
+    result[1] = context.getString(unitId);
+    if (Double.isNaN(speed) || Double.isInfinite(speed)) {
+      result[0] = context.getString(R.string.value_unknown);
+      return result;
+    }
+    speed *= UnitConversions.MS_TO_KMH;
+    if (metricUnits) {
+      if (!reportSpeed) {
+        // convert from hours to minutes
+        speed = speed == 0 ? 0.0 : 60.0 / speed;
+      }
+    } else {
+      speed *= UnitConversions.KM_TO_MI;
+      if (!reportSpeed) {
+        // convert from hours to minutes
+        speed = speed == 0 ? 0.0 : 60.0 / speed;
+      }
+    }
+    result[0] = String.format("%.2f", speed);
+    return result;
+  }
+
+  /**
+   * Formats the given text as a XML CDATA element. This includes adding the
+   * starting and ending CDATA tags. Please notice that this may result in
+   * multiple consecutive CDATA tags.
+   * 
+   * @param text the given text
+   */
+  public static String formatCData(String text) {
+    return "<![CDATA[" + text.replaceAll("]]>", "]]]]><![CDATA[>") + "]]>";
+  }
+
+  /**
+   * Gets the time, in milliseconds, from an XML date time string as defined at
+   * http://www.w3.org/TR/xmlschema-2/#dateTime
+   * 
+   * @param xmlDateTime the XML date time string
+   */
+  public static long getTime(String xmlDateTime) {
+    // Parse the date time base
+    ParsePosition position = new ParsePosition(0);
+    Date date = ISO_8601_BASE.parse(xmlDateTime, position);
+    if (date == null) {
+      throw new IllegalArgumentException("Invalid XML dateTime value: " + xmlDateTime
+          + " (at position " + position.getErrorIndex() + ")");
+    }
+
+    // Parse the date time extras
+    Matcher matcher = ISO_8601_EXTRAS.matcher(xmlDateTime.substring(position.getIndex()));
+    if (!matcher.matches()) {
+      // This will match even an empty string as all groups are optional. Thus a
+      // non-match means invalid content.
+      throw new IllegalArgumentException("Invalid XML dateTime value: " + xmlDateTime);
+    }
+
+    long time = date.getTime();
+
+    // Account for fractional seconds
+    String fractional = matcher.group(1);
+    if (fractional != null) {
+      // Regex ensures fractional part is in (0,1)
+      float fractionalSeconds = Float.parseFloat(fractional);
+      long fractionalMillis = (long) (fractionalSeconds * 1000.0f);
+      time += fractionalMillis;
+    }
+
+    // Account for timezones
+    String sign = matcher.group(2);
+    String offsetHoursStr = matcher.group(3);
+    String offsetMinsStr = matcher.group(4);
+    if (sign != null && offsetHoursStr != null && offsetMinsStr != null) {
+      // Regex ensures sign is + or -
+      boolean plusSign = sign.equals("+");
+      int offsetHours = Integer.parseInt(offsetHoursStr);
+      int offsetMins = Integer.parseInt(offsetMinsStr);
+
+      // Regex ensures values are >= 0
+      if (offsetHours > 14 || offsetMins > 59) {
+        throw new IllegalArgumentException("Bad timezone: " + xmlDateTime);
+      }
+
+      long totalOffsetMillis = (offsetMins + offsetHours * 60L) * 60000L;
+
+      // Convert to UTC
+      if (plusSign) {
+        time -= totalOffsetMillis;
+      } else {
+        time += totalOffsetMillis;
+      }
+    }
+    return time;
+  }
+
+  /**
+   * Gets the time as an array of three integers. Index 0 contains the number of
+   * seconds, index 1 contains the number of minutes, and index 2 contains the
+   * number of hours.
+   * 
+   * @param time the time in milliseconds
+   * @return an array of 3 elements.
+   */
+  public static int[] getTimeParts(long time) {
+    if (time < 0) {
+      int[] parts = getTimeParts(time * -1);
+      parts[0] *= -1;
+      parts[1] *= -1;
+      parts[2] *= -1;
+      return parts;
+    }
+    int[] parts = new int[3];
+
+    long seconds = time / 1000;
+    parts[0] = (int) (seconds % 60);
+    int minutes = (int) (seconds / 60);
+    parts[1] = minutes % 60;
+    parts[2] = minutes / 60;
+    return parts;
+  }
+
+  /**
+   * Gets the html.
+   * 
+   * @param context the context
+   * @param resId the string resource id
+   * @param formatArgs the string resource ids of the format arguments
+   */
+  public static Spanned getHtml(Context context, int resId, Object... formatArgs) {
+    Object[] args = new Object[formatArgs.length];
+    for (int i = 0; i < formatArgs.length; i++) {
+      String url = context.getString((Integer) formatArgs[i]);
+      args[i] = " <a href='" + url + "'>" + url + "</a> ";
+    }
+    return Html.fromHtml(context.getString(resId, args));
+  }
+
+  /**
+   * Gets the frequency display options.
+   * 
+   * @param context the context
+   * @param metricUnits true to display in metric units
+   */
+  public static String[] getFrequencyOptions(Context context, boolean metricUnits) {
+    String[] values = context.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] = context.getString(R.string.value_off);
+      } else if (value < 0) {
+        options[i] = context.getString(
+            metricUnits ? R.string.value_integer_kilometer : R.string.value_integer_mile,
+            Math.abs(value));
+      } else {
+        options[i] = context.getString(R.string.value_integer_minute, value);
+      }
+    }
+    return options;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/SystemUtils.java

@@ -0,0 +1,90 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.Constants;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.os.PowerManager;
+import android.os.PowerManager.WakeLock;
+import android.util.Log;
+
+/**
+ * Utility class for acessing basic Android functionality.
+ *
+ * @author Rodrigo Damazio
+ */
+public class SystemUtils {
+
+  /**
+   * Get the My Tracks version from the manifest.
+   *
+   * @return the version, or an empty string in case of failure.
+   */
+  public static String getMyTracksVersion(Context context) {
+    try {
+      PackageInfo pi = context.getPackageManager().getPackageInfo(
+          "com.google.android.maps.mytracks",
+          PackageManager.GET_META_DATA);
+      return pi.versionName;
+    } catch (NameNotFoundException e)  {
+      Log.w(Constants.TAG, "Failed to get version info.", e);
+      return "";
+    }
+  }
+
+  /**
+   * Tries to acquire a partial wake lock if not already acquired. Logs errors
+   * and gives up trying in case the wake lock cannot be acquired.
+   */
+  public static WakeLock acquireWakeLock(Activity activity, WakeLock wakeLock) {
+    Log.i(Constants.TAG, "LocationUtils: Acquiring wake lock.");
+    try {
+      PowerManager pm = (PowerManager) activity
+          .getSystemService(Context.POWER_SERVICE);
+      if (pm == null) {
+        Log.e(Constants.TAG, "LocationUtils: Power manager not found!");
+        return wakeLock;
+      }
+      if (wakeLock == null) {
+        wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
+            Constants.TAG);
+        if (wakeLock == null) {
+          Log.e(Constants.TAG,
+              "LocationUtils: Could not create wake lock (null).");
+        }
+        return wakeLock;
+      }
+      if (!wakeLock.isHeld()) {
+        wakeLock.acquire();
+        if (!wakeLock.isHeld()) {
+          Log.e(Constants.TAG,
+              "LocationUtils: Could not acquire wake lock.");
+        }
+      }
+    } catch (RuntimeException e) {
+      Log.e(Constants.TAG,
+          "LocationUtils: Caught unexpected exception: " + e.getMessage(), e);
+    }
+    return wakeLock;
+  }
+
+  private SystemUtils() {}
+}

MyTracks/src/com/google/android/apps/mytracks/util/TrackIconUtils.java

@@ -0,0 +1,160 @@
+/*
+ * 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.util;
+
+import com.google.android.maps.mytracks.R;
+
+import android.content.Context;
+
+import java.util.HashMap;
+
+/**
+ * Utilities for track icon.
+ *
+ * @author Jimmy Shih
+ */
+public class TrackIconUtils {
+
+  private static final String AIRPLANE = "AIRPLANE";
+  private static final String BIKE = "BIKE";
+  private static final String BOAT = "BOAT";
+  private static final String DRIVE = "DRIVE";
+  private static final String RUN = "RUN";
+  private static final String SKI = "SKI";
+  private static final String SNOW_BOARDING = "SNOW_BOARDING";
+  private static final String WALK = "WALK";
+
+  private TrackIconUtils() {}
+
+  private static HashMap<String, Integer> map = new HashMap<String, Integer>();
+
+  static {
+    map.put(AIRPLANE, R.drawable.track_airplane);
+    map.put(BIKE, R.drawable.track_bike);
+    map.put(BOAT, R.drawable.track_boat);
+    map.put(DRIVE, R.drawable.track_drive);
+    map.put(RUN, R.drawable.track_run);
+    map.put(SKI, R.drawable.track_ski);
+    map.put(SNOW_BOARDING, R.drawable.track_snow_boarding);
+    map.put(WALK, R.drawable.track_walk);
+  }
+
+  private static int[] airplane = new int[] {
+      R.string.activity_type_airplane,
+      R.string.activity_type_commercial_airplane,
+      R.string.activity_type_rc_airplane
+  };
+  private static int[] bike = new int[] {
+      R.string.activity_type_biking,
+      R.string.activity_type_cycling,
+      R.string.activity_type_dirt_bike,
+      R.string.activity_type_motor_bike,
+      R.string.activity_type_mountain_biking,
+      R.string.activity_type_road_biking,
+      R.string.activity_type_track_cycling };
+  private static int[] boat = new int[] {
+      R.string.activity_type_boat,
+      R.string.activity_type_ferry,
+      R.string.activity_type_motor_boating,
+      R.string.activity_type_rc_boat
+  };
+  private static int[] drive = new int[] {
+      R.string.activity_type_atv,
+      R.string.activity_type_driving,
+      R.string.activity_type_driving_bus,
+      R.string.activity_type_driving_car };
+  private static int[] run = new int[] {
+      R.string.activity_type_running,
+      R.string.activity_type_street_running,
+      R.string.activity_type_track_running,
+      R.string.activity_type_trail_running };
+  private static int[] ski = new int[] {
+      R.string.activity_type_cross_country_skiing,
+      R.string.activity_type_skiing };
+  private static int[] snowBoarding = new int[] {
+      R.string.activity_type_snow_boarding
+  };
+  private static int[] walk = new int[] {
+      R.string.activity_type_hiking,
+      R.string.activity_type_off_trail_hiking,
+      R.string.activity_type_speed_walking,
+      R.string.activity_type_trail_hiking,
+      R.string.activity_type_walking };
+
+  /**
+   * Gets the icon drawable.
+   * 
+   * @param iconValue the icon value
+   */
+  public static int getIconDrawable(String iconValue) {
+    if (iconValue == null || iconValue.equals("")) {
+      return R.drawable.track_walk;
+    }
+    Integer drawable = map.get(iconValue);
+    return drawable == null ? R.drawable.track_walk : drawable;
+  }
+  
+  /**
+   * Gets the icon value.
+   * 
+   * @param context the context
+   * @param activityType the activity type
+   */
+  public static String getIconValue(Context context, String activityType) {
+    if (inList(context, activityType, airplane)) {
+      return AIRPLANE;
+    }    
+    if (inList(context, activityType, bike)) {
+      return BIKE;
+    }
+    if (inList(context, activityType, boat)) {
+      return BOAT;
+    }    
+    if (inList(context, activityType, drive)) {
+      return DRIVE;
+    }
+    if (inList(context, activityType, run)) {
+      return RUN;
+    }
+    if (inList(context, activityType, ski)) {
+      return SKI;
+    }
+    if (inList(context, activityType, snowBoarding)) {
+      return SNOW_BOARDING;
+    }
+    if (inList(context, activityType, walk)) {
+      return WALK;
+    }
+    return "";
+  }
+
+  /**
+   * Returns true if the activity type is in the list.
+   * 
+   * @param context the context
+   * @param activityType the activity type
+   * @param list the list
+   */
+  private static boolean inList(Context context, String activityType, int[] list) {
+    for (int i : list) {
+      if (context.getString(i).equals(activityType)) {
+        return true;
+      }
+    }
+    return false;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/TrackNameUtils.java

@@ -0,0 +1,129 @@
+/*
+ * 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.util;
+
+import com.google.android.maps.mytracks.R;
+import com.google.common.annotations.VisibleForTesting;
+
+import android.content.Context;
+import android.location.Address;
+import android.location.Geocoder;
+import android.location.Location;
+
+import java.io.IOException;
+import java.text.SimpleDateFormat;
+import java.util.List;
+
+/**
+ * Utilities for track name.
+ *
+ * @author Matthew Simmons
+ */
+public class TrackNameUtils {
+
+  @VisibleForTesting
+  static final String ISO_8601_FORMAT = "yyyy-MM-dd HH:mm";
+
+  private TrackNameUtils() {
+  }
+
+  /**
+   * Gets the track name.
+   *
+   * @param context the context
+   * @param trackId the track id
+   * @param startTime the track start time
+   * @param location the track location
+   */
+  public static String getTrackName(
+      Context context, long trackId, long startTime, Location location) {
+    String trackName = PreferencesUtils.getString(context, R.string.track_name_key,
+        PreferencesUtils.TRACK_NAME_DEFAULT);
+
+    if (trackName.equals(
+        context.getString(R.string.settings_recording_track_name_date_local_value))) {
+      if (startTime == -1L) {
+        return null;
+      }
+      return StringUtils.formatDateTime(context, startTime);
+    } else if (trackName.equals(
+        context.getString(R.string.settings_recording_track_name_date_iso_8601_value))) {
+      if (startTime == -1L) {
+        return null;
+       }
+      SimpleDateFormat dateFormat = new SimpleDateFormat(ISO_8601_FORMAT);
+      return dateFormat.format(startTime);
+    } else if (trackName.equals(
+        context.getString(R.string.settings_recording_track_name_number_value))) {
+      if (trackId == -1L) {
+        return null;
+      }
+      return context.getString(R.string.track_name_format, trackId);
+    } else {
+      // trackName equals settings_recording_track_name_location_value or any
+      // value
+      if (location != null) {
+        return getReverseGeoCoding(context, location);
+      } else {
+        // Use the startTime if available
+        if (startTime != -1L) {
+          return StringUtils.formatDateTime(context, startTime);
+        }
+        return null;
+      }
+    }
+  }
+
+  /**
+   * Gets the reverse geo coding string for a location.
+   * 
+   * @param context the context
+   * @param location the location
+   */
+  private static String getReverseGeoCoding(Context context, Location location) {
+    if (location == null || !ApiAdapterFactory.getApiAdapter().isGeoCoderPresent()) {
+      return null;
+    }
+    Geocoder geocoder = new Geocoder(context);
+    try {
+      List<Address> addresses = geocoder.getFromLocation(
+          location.getLatitude(), location.getLongitude(), 1);
+      if (addresses.size() > 0) {
+        Address address = addresses.get(0);
+        int lines = address.getMaxAddressLineIndex();
+        if (lines > 0) {
+          return address.getAddressLine(0);
+        }
+        String featureName = address.getFeatureName();
+        if (featureName != null) {
+          return featureName;
+        }
+        String thoroughfare = address.getThoroughfare();
+        if (thoroughfare != null) {
+          return thoroughfare;
+        }
+        String locality = address.getLocality();
+        if (locality != null) {
+          return locality;
+        }
+      }
+    } catch (IOException e) {
+      // Can safely ignore
+    }
+    return null;
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/TrackRecordingServiceConnectionUtils.java

@@ -0,0 +1,194 @@
+/*
+ * 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.util;
+
+import com.google.android.apps.mytracks.TrackEditActivity;
+import com.google.android.apps.mytracks.content.WaypointCreationRequest;
+import com.google.android.apps.mytracks.services.ITrackRecordingService;
+import com.google.android.apps.mytracks.services.TrackRecordingService;
+import com.google.android.apps.mytracks.services.TrackRecordingServiceConnection;
+import com.google.android.maps.mytracks.R;
+
+import android.app.ActivityManager;
+import android.app.ActivityManager.RunningServiceInfo;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.os.RemoteException;
+import android.util.Log;
+import android.widget.Toast;
+
+import java.util.List;
+
+/**
+ * Utilities for {@link TrackRecordingServiceConnection}.
+ * 
+ * @author Rodrigo Damazio
+ */
+public class TrackRecordingServiceConnectionUtils {
+
+  private static final String TAG = TrackRecordingServiceConnectionUtils.class.getSimpleName();
+
+  private TrackRecordingServiceConnectionUtils() {}
+
+  /**
+   * Returns true if the recording service is running.
+   * 
+   * @param context the current context
+   */
+  public static boolean isRecordingServiceRunning(Context context) {
+    ActivityManager activityManager = (ActivityManager) context.getSystemService(
+        Context.ACTIVITY_SERVICE);
+    List<RunningServiceInfo> services = activityManager.getRunningServices(Integer.MAX_VALUE);
+
+    for (RunningServiceInfo serviceInfo : services) {
+      ComponentName componentName = serviceInfo.service;
+      String serviceName = componentName.getClassName();
+      if (TrackRecordingService.class.getName().equals(serviceName)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Resumes the recording track.
+   * 
+   * @param trackRecordingServiceConnection the track recording service
+   */
+  public static void resumeTrack(TrackRecordingServiceConnection trackRecordingServiceConnection) {
+    try {
+      ITrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
+      if (service != null) {
+        service.resumeCurrentTrack();
+      }
+    } catch (RemoteException e) {
+      Log.e(TAG, "Unable to resume track.", e);
+    }
+  }
+
+  /**
+   * Pauses the recording track.
+   * 
+   * @param trackRecordingServiceConnection the track recording service
+   *          connection
+   */
+  public static void pauseTrack(TrackRecordingServiceConnection trackRecordingServiceConnection) {
+    try {
+      ITrackRecordingService service = trackRecordingServiceConnection.getServiceIfBound();
+      if (service != null) {
+        service.pauseCurrentTrack();
+      }
+    } catch (RemoteException e) {
+      Log.e(TAG, "Unable to resume track.", e);
+    }
+  }
+
+  /**
+   * Stops the recording.
+   * 
+   * @param context the context
+   * @param trackRecordingServiceConnection the track recording service
+   *          connection
+   * @param showEditor true to show the editor
+   */
+  public static void stopRecording(Context context,
+      TrackRecordingServiceConnection trackRecordingServiceConnection, boolean showEditor) {
+    ITrackRecordingService trackRecordingService = trackRecordingServiceConnection
+        .getServiceIfBound();
+    if (trackRecordingService != null) {
+      try {
+        if (showEditor) {
+          /*
+           * Need to remember the recordingTrackId before calling
+           * endCurrentTrack. endCurrentTrack sets the value to -1L.
+           */
+          long recordingTrackId = PreferencesUtils.getLong(
+              context, R.string.recording_track_id_key);
+          trackRecordingService.endCurrentTrack();
+          if (recordingTrackId != PreferencesUtils.RECORDING_TRACK_ID_DEFAULT) {
+            Intent intent = IntentUtils.newIntent(context, TrackEditActivity.class)
+                .putExtra(TrackEditActivity.EXTRA_TRACK_ID, recordingTrackId)
+                .putExtra(TrackEditActivity.EXTRA_NEW_TRACK, true);
+            context.startActivity(intent);
+          }
+        } else {
+          trackRecordingService.endCurrentTrack();
+        }
+      } catch (Exception e) {
+        Log.e(TAG, "Unable to stop recording.", e);
+      }
+    } else {
+      resetRecordingState(context);
+    }
+    trackRecordingServiceConnection.unbindAndStop();
+  }
+
+  /**
+   * Resumes the track recording service connection.
+   *
+   * @param context the context
+   * @param trackRecordingServiceConnection the track recording service
+   *          connection
+   */
+  public static void startConnection(
+      Context context, TrackRecordingServiceConnection trackRecordingServiceConnection) {
+    trackRecordingServiceConnection.bindIfStarted();
+    if (!isRecordingServiceRunning(context)) {
+      resetRecordingState(context);
+    }
+  }
+
+  private static void resetRecordingState(Context context) {
+    long recordingTrackId = PreferencesUtils.getLong(context, R.string.recording_track_id_key);
+    if (recordingTrackId != PreferencesUtils.RECORDING_TRACK_ID_DEFAULT) {
+      PreferencesUtils.setLong(
+          context, R.string.recording_track_id_key, PreferencesUtils.RECORDING_TRACK_ID_DEFAULT);
+    }
+    boolean recordingTrackPaused = PreferencesUtils.getBoolean(context,
+        R.string.recording_track_paused_key, PreferencesUtils.RECORDING_TRACK_PAUSED_DEFAULT);
+    if (!recordingTrackPaused) {
+      PreferencesUtils.setBoolean(context, R.string.recording_track_paused_key,
+          PreferencesUtils.RECORDING_TRACK_PAUSED_DEFAULT);
+    }
+  }
+
+  /**
+   * Adds a marker.
+   */
+  public static void addMarker(Context context,
+      TrackRecordingServiceConnection trackRecordingServiceConnection,
+      WaypointCreationRequest waypointCreationRequest) {
+    ITrackRecordingService trackRecordingService = trackRecordingServiceConnection
+        .getServiceIfBound();
+    if (trackRecordingService == null) {
+      Log.d(TAG, "Unable to add marker, no track recording service");
+    } else {
+      try {
+        if (trackRecordingService.insertWaypoint(waypointCreationRequest) != -1L) {
+          Toast.makeText(context, R.string.marker_add_success, Toast.LENGTH_SHORT).show();
+          return;
+        }
+      } catch (RemoteException e) {
+        Log.e(TAG, "Unable to add marker", e);
+      } catch (IllegalStateException e) {
+        Log.e(TAG, "Unable to add marker.", e);
+      }
+    }
+    Toast.makeText(context, R.string.marker_add_error, Toast.LENGTH_LONG).show();
+  }
+}

MyTracks/src/com/google/android/apps/mytracks/util/UnitConversions.java

@@ -0,0 +1,53 @@
+/*
+ * 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.util;
+
+/**
+ * Unit conversion constants.
+ *
+ * @author Sandor Dornbush
+ */
+public class UnitConversions {
+
+  private UnitConversions() {}
+  
+  // multiplication factor to convert kilometers to miles
+  public static final double KM_TO_MI = 0.621371192;
+
+  // multiplication factor to convert miles to kilometers
+  public static final double MI_TO_KM = 1 / KM_TO_MI;
+
+  // multiplication factor to convert miles to feet
+  public static final double MI_TO_FT = 5280.0;
+
+  // multiplication factor to convert feet to miles
+  public static final double FT_TO_MI = 1 / MI_TO_FT;
+
+  // multiplication factor to convert meters to kilometers
+  public static final double M_TO_KM = 1 / 1000.0;
+
+  // multiplication factor to convert meters per second to kilometers per hour
+  public static final double MS_TO_KMH = 3.6;
+
+  // multiplication factor to convert meters to miles
+  public static final double M_TO_MI = M_TO_KM * KM_TO_MI;
+
+  // multiplication factor to convert meters to feet
+  public static final double M_TO_FT = M_TO_MI * MI_TO_FT;
+
+  // multiplication factor to convert degrees to radians
+  public static final double DEG_TO_RAD = Math.PI / 180.0;
+}

MyTracks/src/com/google/android/apps/mytracks/util/UriUtils.java

@@ -0,0 +1,60 @@
+/*
+ * 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.util;
+
+import android.net.Uri;
+
+import java.util.List;
+
+/**
+ * Utilities for dealing with content and other types of URIs.
+ *
+ * @author Rodrigo Damazio
+ */
+public class UriUtils {
+
+  public static boolean matchesContentUri(Uri uri, Uri baseContentUri) {
+    if (uri == null) {
+      return false;
+    }
+
+    // Check that scheme and authority are the same.
+    if (!uri.getScheme().equals(baseContentUri.getScheme()) ||
+        !uri.getAuthority().equals(baseContentUri.getAuthority())) {
+      return false;
+    }
+
+    // Checks that all the base path components are in the URI.
+    List<String> uriPathSegments = uri.getPathSegments();
+    List<String> basePathSegments = baseContentUri.getPathSegments();
+    if (basePathSegments.size() > uriPathSegments.size()) {
+      return false;
+    }
+    for (int i = 0; i < basePathSegments.size(); i++) {
+      if (!uriPathSegments.get(i).equals(basePathSegments.get(i))) {
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  public static boolean isFileUri(Uri uri) {
+    return "file".equals(uri.getScheme());
+  }
+
+  private UriUtils() {}
+}