Merge heads

MyTracks/libs/README.txt

@@ -7,7 +7,7 @@ Android Support Package:
 android-support-v4.jar (version 13)
 
 Ant+:
-antlib.jar - see http://www.thisisant.com/pages/developer-zone/android-api
+antlib.jar - from Android_ANT_SDK_20120625.zip
 
 Google APIs Client Library for Java:
 google-api-client-1.12.0-beta.jar

MyTracks/res/values/strings.xml

@@ -384,9 +384,9 @@ limitations under the License.
   <string name="description_average_moving_pace"
     translation_description="Average moving pace description.
 
-      %1$.2f pace in minutes per kilometer
-      %2$.1f pace in minutes per mile">
-    Average moving pace: %1$.2f min/km (%2$.1f min/mi)
+      %1$s pace in minutes per kilometer
+      %2$s pace in minutes per mile">
+    Average moving pace: %1$s min/km (%2$s min/mi)
   </string>
   <string name="description_average_moving_speed"
     translation_description="Average moving speed description.
@@ -398,9 +398,9 @@ limitations under the License.
   <string name="description_average_pace"
     translation_description="Average pace description.
 
-      %1$.2f pace in minutes per kilometer
-      %2$.1f pace in minutes per mile">
-    Average pace: %1$.2f min/km (%2$.1f min/mi)
+      %1$s pace in minutes per kilometer
+      %2$s pace in minutes per mile">
+    Average pace: %1$s min/km (%2$s min/mi)
   </string>
   <string name="description_average_speed"
     translation_description="Average speed description.
@@ -427,9 +427,9 @@ limitations under the License.
   <string name="description_fastest_pace"
     translation_description="Fastest pace description.
 
-      %1$.2f pace in minutes per kilometer
-      %2$.1f pace in minutes per mile">
-    Fastest pace: %1$.2f min/km (%2$.1f min/mi)
+      %1$s pace in minutes per kilometer
+      %2$s pace in minutes per mile">
+    Fastest pace: %1$s min/km (%2$s min/mi)
   </string>
   <string name="description_location_accuracy"
     translation_description="Label for location accuracy in meters.">
@@ -497,12 +497,12 @@ limitations under the License.
     Moving time: %1$s
   </string>
   <string name="description_pace_imperial"
-    translation_description="Pace in imperial units, hours per mile.">
-    Pace (hr/mi)
+    translation_description="Pace in imperial units, minutes per mile.">
+    Pace (min/mi)
   </string>
   <string name="description_pace_metric"
-    translation_description="Pace in metric units, hours per kilometer.">
-    Pace (hr/km)
+    translation_description="Pace in metric units, minutes per kilometer.">
+    Pace (min/km)
   </string>
   <string name="description_recorded_time"
     translation_description="Recorded time description.
@@ -1974,7 +1974,7 @@ limitations under the License.
   </string>
   <string name="settings_stats_rate_title"
     translation_description="In the 'Stats' settings, the option to change the preferred rate,
-      either speed (mi/hr) or pace (hr/mi).
+      either speed (mi/hr) or pace (min/mi).
 
       Character limit: ~23 (1 line)">
     Preferred rate
@@ -2131,7 +2131,7 @@ limitations under the License.
     Moving time
   </string>
   <string name="stats_pace"
-    translation_description="In the 'Stats' page, the pace like hours per mile.
+    translation_description="In the 'Stats' page, the pace like minutes per mile.
 
       Character limit: ~23 (1 line)">
     Pace

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

@@ -653,13 +653,14 @@ public class ChartView extends View {
     canvas.drawLine(x, y, x + effectiveWidth, y, axisPaint);
     String label = getXAxisLabel();
     Rect rect = getRect(axisPaint, label);
-    canvas.drawText(label, x + effectiveWidth + spacer, y + ((int) rect.height() / 2), axisPaint);
-    
+    int yOffset = (int) rect.height() / 2;
+    canvas.drawText(label, x + effectiveWidth + spacer, y + yOffset, axisPaint);
+
     double interval = getXAxisInterval();
     ArrayList<Double> markerPositions = getXAxisMarkerPositions(interval);
     NumberFormat numberFormat = interval < 1 ? X_FRACTION_FORMAT : X_NUMBER_FORMAT;
     for (int i = 0; i < markerPositions.size(); i++) {
-      drawXAxisMarker(canvas, markerPositions.get(i), numberFormat);
+      drawXAxisMarker(canvas, markerPositions.get(i), numberFormat, spacer + yOffset);
     }
   }
 
@@ -682,12 +683,14 @@ public class ChartView extends View {
    * @param canvas
    * @param value value
    * @param numberFormat the number format
+   * @param spacing the spacing between x axis and marker
    */
-  private void drawXAxisMarker(Canvas canvas, double value, NumberFormat numberFormat) {
+  private void drawXAxisMarker(
+      Canvas canvas, double value, NumberFormat numberFormat, int spacing) {
     String marker = chartByDistance ? numberFormat.format(value)
         : StringUtils.formatElapsedTime((long) value);
     Rect rect = getRect(xAxisMarkerPaint, marker);
-    canvas.drawText(marker, getX(value), topBorder + effectiveHeight + spacer + rect.height(),
+    canvas.drawText(marker, getX(value), topBorder + effectiveHeight + spacing + rect.height(),
         xAxisMarkerPaint);
   }
 
@@ -906,8 +909,11 @@ public class ChartView extends View {
     leftBorder = (int) (density * BORDER + markerLength);
     int[] titleDimensions = getTitleDimenions();
     topBorder = (int) (density * BORDER + titleDimensions[0] * (titleDimensions[1] + spacer));
-    bottomBorder = (int) (density * BORDER + getRect(xAxisMarkerPaint, "1").height() + spacer);
-    rightBorder = (int) (density * BORDER + getRect(axisPaint, getXAxisLabel()).width() + spacer);
+    Rect xAxisLabelRect = getRect(axisPaint, getXAxisLabel());
+    // border + x axis marker + spacer + .5 x axis label
+    bottomBorder = (int) (density * BORDER + getRect(xAxisMarkerPaint, "1").height() + spacer
+        + (int) (xAxisLabelRect.height() / 2));
+    rightBorder = (int) (density * BORDER + xAxisLabelRect.width() + spacer);
     updateEffectiveDimensions();
   }
 

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

@@ -27,14 +27,12 @@ import com.google.android.maps.mytracks.R;
 import com.google.protobuf.InvalidProtocolBufferException;
 
 import android.os.Bundle;
+import android.os.Handler;
 import android.os.RemoteException;
 import android.text.format.DateFormat;
 import android.util.Log;
 import android.widget.TextView;
 
-import java.util.Timer;
-import java.util.TimerTask;
-
 /**
  * An activity that displays information about sensors.
  * 
@@ -43,12 +41,14 @@ import java.util.TimerTask;
 public class SensorStateActivity extends AbstractMyTracksActivity {
 
   private static final String TAG = SensorStateActivity.class.getName();
-  private static final long REFRESH_PERIOD_MS = 250;
+  private static final long ONE_SECOND = 1000;
 
-  /**
-   * A Runnable to update the UI.
-   */
-  private final Runnable updateRunnable = new Runnable() {
+  private TrackRecordingServiceConnection trackRecordingServiceConnection;
+  private Handler handler;
+  private SensorManager tempSensorManager;
+
+  private final Runnable updateUiRunnable = new Runnable() {
+      @Override
     public void run() {
       ITrackRecordingService trackRecordingService = trackRecordingServiceConnection
           .getServiceIfBound();
@@ -69,30 +69,15 @@ public class SensorStateActivity extends AbstractMyTracksActivity {
         stopTempSensorManager();
         updateFromSystemSensorManager();
       }
+      handler.postDelayed(this, ONE_SECOND);
     }
   };
 
-  /**
-   * A TimeTask to update the UI.
-   */
-  private class UpdateTimerTask extends TimerTask {
-    @Override
-    public void run() {
-      if (isVisible) {
-        runOnUiThread(updateRunnable);
-      }
-    }
-  };
-
-  private TrackRecordingServiceConnection trackRecordingServiceConnection;
-  private boolean isVisible = false;
-  private Timer timer = null;
-  private SensorManager tempSensorManager = null;
-
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     trackRecordingServiceConnection = new TrackRecordingServiceConnection(this, null);
+    handler = new Handler();
   }
 
   @Override
@@ -104,18 +89,13 @@ public class SensorStateActivity extends AbstractMyTracksActivity {
   @Override
   protected void onResume() {
     super.onResume();
-    isVisible = true;
-    timer = new Timer();
-    timer.schedule(new UpdateTimerTask(), 0, REFRESH_PERIOD_MS);
+    handler.post(updateUiRunnable);
   }
 
   @Override
   protected void onPause() {
     super.onPause();
-    isVisible = false;
-    timer.cancel();
-    timer.purge();
-    timer = null;
+    handler.removeCallbacks(updateUiRunnable);
     stopTempSensorManager();
   }
 

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

@@ -367,7 +367,8 @@ public class TrackListActivity extends AbstractSendToGoogleActivity
         @Override
       public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
         return new CursorLoader(TrackListActivity.this, TracksColumns.CONTENT_URI, PROJECTION, null,
-            null, TracksColumns.SHAREDWITHME + " ASC, " + TracksColumns.STARTTIME + " DESC");
+            null, "IFNULL(" + TracksColumns.SHAREDWITHME + ",0) ASC, " + TracksColumns.STARTTIME
+                + " DESC");
       }
 
         @Override

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

@@ -24,7 +24,6 @@ import com.google.android.maps.mytracks.R;
 import com.google.common.annotations.VisibleForTesting;
 
 import android.content.Context;
-import android.util.Pair;
 
 import java.util.Vector;
 
@@ -117,25 +116,24 @@ public class DescriptionGeneratorImpl implements DescriptionGenerator {
     writeTime(stats.getMovingTime(), builder, R.string.description_moving_time, lineBreak);
 
     // Average speed
-    Pair<Double, Double> averageSpeed = writeSpeed(
-        stats.getAverageSpeed(), builder, R.string.description_average_speed, lineBreak);
+    writeSpeed(stats.getAverageSpeed(), builder, R.string.description_average_speed, lineBreak);
 
     // Average moving speed
-    Pair<Double, Double> averageMovingSpeed = writeSpeed(stats.getAverageMovingSpeed(), builder,
-        R.string.description_average_moving_speed, lineBreak);
+    writeSpeed(stats.getAverageMovingSpeed(), builder, R.string.description_average_moving_speed,
+        lineBreak);
 
     // Max speed
-    Pair<Double, Double> maxSpeed = writeSpeed(
-        stats.getMaxSpeed(), builder, R.string.description_max_speed, lineBreak);
+    writeSpeed(stats.getMaxSpeed(), builder, R.string.description_max_speed, lineBreak);
 
     // Average pace
-    writePace(averageSpeed, builder, R.string.description_average_pace, lineBreak);
+    writePace(stats.getAverageSpeed(), builder, R.string.description_average_pace, lineBreak);
 
     // Average moving pace
-    writePace(averageMovingSpeed, builder, R.string.description_average_moving_pace, lineBreak);
+    writePace(stats.getAverageMovingSpeed(), builder, R.string.description_average_moving_pace,
+        lineBreak);
 
     // Fastest pace
-    writePace(maxSpeed, builder, R.string.description_fastest_pace, lineBreak);
+    writePace(stats.getMaxSpeed(), builder, R.string.description_fastest_pace, lineBreak);
 
     // Max elevation
     writeElevation(stats.getMaxElevation(), builder, R.string.description_max_elevation, lineBreak);
@@ -199,34 +197,38 @@ public class DescriptionGeneratorImpl implements DescriptionGenerator {
    * @param builder StringBuilder to append speed
    * @param resId resource id of speed string
    * @param lineBreak line break string
-   * @return a pair of speed, first in kilometers per hour, second in miles per
-   *         hour.
    */
   @VisibleForTesting
-  Pair<Double, Double> writeSpeed(
+  void writeSpeed(
       double speed, StringBuilder builder, int resId, String lineBreak) {
     double speedInKmHr = speed * UnitConversions.MS_TO_KMH;
     double speedInMiHr = speedInKmHr * UnitConversions.KM_TO_MI;
     builder.append(context.getString(resId, speedInKmHr, speedInMiHr));
     builder.append(lineBreak);
-    return Pair.create(speedInKmHr, speedInMiHr);
   }
 
   /**
    * Writes pace.
-   *
-   * @param speed a pair of speed, first in kilometers per hour, second in miles
-   *          per hour
+   * 
+   * @param speed speed in meters per second
    * @param builder StringBuilder to append pace
    * @param resId resource id of pace string
    * @param lineBreak line break string
    */
   @VisibleForTesting
-  void writePace(
-      Pair<Double, Double> speed, StringBuilder builder, int resId, String lineBreak) {
-    double paceInMinKm = getPace(speed.first);
-    double paceInMinMi = getPace(speed.second);
-    builder.append(context.getString(resId, paceInMinKm, paceInMinMi));
+  void writePace(double speed, StringBuilder builder, int resId, String lineBreak) {
+    String[] paceInMetrics = StringUtils.getSpeedParts(context, speed, true, false);
+    String[] paceInImperial = StringUtils.getSpeedParts(context, speed, false, false);
+
+    if (paceInMetrics[0] == null) {
+      paceInMetrics[0] = context.getString(R.string.value_unknown);
+    }
+
+    if (paceInImperial[0] == null) {
+      paceInImperial[0] = context.getString(R.string.value_unknown);
+    }
+
+    builder.append(context.getString(resId, paceInMetrics[0], paceInImperial[0]));
     builder.append(lineBreak);
   }
 
@@ -262,14 +264,4 @@ public class DescriptionGeneratorImpl implements DescriptionGenerator {
     builder.append(context.getString(resId, gradeInPercent));
     builder.append(lineBreak);
   }
-
-  /**
-   * Gets pace (in minutes) from speed.
-   *
-   * @param speed speed in hours
-   */
-  @VisibleForTesting
-  double getPace(double speed) {
-    return speed == 0 ? 0.0 : 60.0 / speed; // convert from hours to minutes
-  }
 }

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

@@ -134,9 +134,10 @@ public class TrackDataHub implements DataSourceListener {
     started = false;
 
     dataSourceManager.unregisterAllListeners();
-    handlerThread.getLooper().quit();
-
-    handlerThread = null;
+    if (handlerThread != null) {
+      handlerThread.getLooper().quit();
+      handlerThread = null;
+    }
     handler = null;
     dataSource = null;
     dataSourceManager = null;

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

@@ -27,7 +27,11 @@ import android.content.DialogInterface;
 import android.os.Bundle;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
+import android.text.SpannableString;
+import android.text.method.LinkMovementMethod;
+import android.text.util.Linkify;
 import android.view.KeyEvent;
+import android.widget.TextView;
 
 import java.util.Locale;
 
@@ -89,8 +93,12 @@ public class EulaDialogFragment extends DialogFragment {
     fragmentActivity = getActivity();
 
     boolean hasAccepted = getArguments().getBoolean(KEY_HAS_ACCEPTED);
-    AlertDialog.Builder builder = new AlertDialog.Builder(fragmentActivity).setMessage(
-        getEulaText()).setTitle(R.string.eula_title);
+
+    SpannableString message = new SpannableString(getEulaText());
+    Linkify.addLinks(message, Linkify.WEB_URLS);
+
+    AlertDialog.Builder builder = new AlertDialog.Builder(fragmentActivity).setMessage(message)
+        .setTitle(R.string.eula_title);
 
     if (hasAccepted) {
       builder.setPositiveButton(R.string.generic_ok, null);
@@ -117,10 +125,17 @@ public class EulaDialogFragment extends DialogFragment {
           caller.onEulaDone();
         }
       });
-    }
+    }   
     return builder.create();
   }
 
+  @Override
+  public void onStart() {
+    super.onStart();   
+    TextView textView = (TextView) getDialog().findViewById(android.R.id.message);
+    textView.setMovementMethod(LinkMovementMethod.getInstance());
+  }
+  
   @Override
   public void onCancel(DialogInterface arg0) {
     caller.onEulaDone();

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

@@ -237,7 +237,8 @@ public class SendFusionTablesAsyncTask extends AbstractSendAsyncTask {
 
       int count = cursor.getCount();
       List<Location> locations = new ArrayList<Location>(MAX_POINTS_PER_UPLOAD);
-      Location lastLocation = null;
+      Location lastValidLocation = null;
+      boolean sentStartMarker = false;
 
       for (int i = 0; i < count; i++) {
         cursor.moveToPosition(i);
@@ -245,14 +246,15 @@ public class SendFusionTablesAsyncTask extends AbstractSendAsyncTask {
         Location location = myTracksProviderUtils.createTrackPoint(cursor);
         locations.add(location);
 
-        if (i == 0) {
-          // Create a start marker
-          String name = context.getString(R.string.marker_label_start, track.getName());
-          createNewPoint(fusiontables, tableId, name, "", location, MARKER_TYPE_START);
+        if (LocationUtils.isValidLocation(location)) {
+          lastValidLocation = location;
         }
 
-        if (LocationUtils.isValidLocation(location)) {
-          lastLocation = location;
+        if (!sentStartMarker && lastValidLocation != null) {
+          // Create a start marker
+          String name = context.getString(R.string.marker_label_start, track.getName());
+          createNewPoint(fusiontables, tableId, name, "", lastValidLocation, MARKER_TYPE_START);
+          sentStartMarker = true;
         }
 
         // Upload periodically
@@ -274,11 +276,12 @@ public class SendFusionTablesAsyncTask extends AbstractSendAsyncTask {
       }
 
       // Create an end marker
-      if (lastLocation != null) {        
+      if (lastValidLocation != null) {
         String name = context.getString(R.string.marker_label_end, track.getName());
         DescriptionGenerator descriptionGenerator = new DescriptionGeneratorImpl(context);
         String description = descriptionGenerator.generateTrackDescription(track, null, null, true);
-        createNewPoint(fusiontables, tableId, name, description, lastLocation, MARKER_TYPE_END);
+        createNewPoint(
+            fusiontables, tableId, name, description, lastValidLocation, MARKER_TYPE_END);
       }
       return true;
     } finally {

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

@@ -244,7 +244,8 @@ public class SendMapsAsyncTask extends AbstractSendAsyncTask {
 
       int count = cursor.getCount();
       List<Location> locations = new ArrayList<Location>(MAX_POINTS_PER_UPLOAD);
-      Location lastLocation = null;
+      Location lastValidLocation = null;
+      boolean sentStartMarker = false;
 
       // For chart server, limit the number of elevation readings to 250.
       int elevationSamplingFrequency = Math.max(1, (int) (count / 250.0));
@@ -261,13 +262,18 @@ public class SendMapsAsyncTask extends AbstractSendAsyncTask {
         Location location = myTracksProviderUtils.createTrackPoint(cursor);
         locations.add(location);
 
-        if (i == 0) {
+        if (LocationUtils.isValidLocation(location)) {
+          lastValidLocation = location;
+        }
+
+        if (!sentStartMarker && lastValidLocation != null) {
           // Create a start marker
           if (!uploadMarker(context.getString(R.string.marker_label_start, track.getName()), "",
-              START_ICON_URL, location)) {
+              START_ICON_URL, lastValidLocation)) {
             Log.d(TAG, "Unable to create a start marker");
             return false;
           }
+          sentStartMarker = true;
         }
 
         tripStatisticsUpdater.addLocation(location, minRecordingDistance);
@@ -275,9 +281,6 @@ public class SendMapsAsyncTask extends AbstractSendAsyncTask {
           distances.add(tripStatisticsUpdater.getTripStatistics().getTotalDistance());
           elevations.add(tripStatisticsUpdater.getSmoothedElevation());
         }
-        if (LocationUtils.isValidLocation(location)) {
-          lastLocation = location;
-        }
 
         // Upload periodically
         int readCount = i + 1;
@@ -298,14 +301,14 @@ public class SendMapsAsyncTask extends AbstractSendAsyncTask {
       }
 
       // Create an end marker
-      if (lastLocation != null) {
+      if (lastValidLocation != null) {
         distances.add(tripStatisticsUpdater.getTripStatistics().getTotalDistance());
         elevations.add(tripStatisticsUpdater.getSmoothedElevation());
         DescriptionGenerator descriptionGenerator = new DescriptionGeneratorImpl(context);
         track.setDescription(
             descriptionGenerator.generateTrackDescription(track, distances, elevations, true));
         if (!uploadMarker(context.getString(R.string.marker_label_end, track.getName()),
-            track.getDescription(), END_ICON_URL, lastLocation)) {
+            track.getDescription(), END_ICON_URL, lastValidLocation)) {
           Log.d(TAG, "Unable to create an end marker");
           return false;
         }

MyTracks/src/com/google/android/apps/mytracks/services/TrackRecordingService.java

@@ -133,8 +133,9 @@ public class TrackRecordingService extends Service {
   private Location lastLocation;
   private boolean currentSegmentHasLocation;
 
-  // Timer to periodically invoke checkLocationListener
-  private final Timer timer = new Timer();
+  // TimerTask to register location listener
+  private TimerTask timerTask;
+  private Timer timer;
 
   // Handler for the timer to post a runnable to the main thread
   private final Handler handler = new Handler();
@@ -247,15 +248,6 @@ public class TrackRecordingService extends Service {
     }
   };
 
-  private TimerTask checkLocationListener = new TimerTask() {
-      @Override
-    public void run() {
-      if (isRecording() && !isPaused()) {
-        registerLocationListener();
-      }
-    }
-  };
-
   private final ConnectionCallbacks activityRecognitionCallbacks = new ConnectionCallbacks() {
       @Override
     public void onDisconnected() {}
@@ -301,10 +293,19 @@ public class TrackRecordingService extends Service {
     // onSharedPreferenceChanged might not set recordingTrackId.
     recordingTrackId = PreferencesUtils.RECORDING_TRACK_ID_DEFAULT;
 
-    // Require announcementExecutor and splitExecutor to be created.
+    // Require voiceExecutor and splitExecutor to be created.
     sharedPreferenceChangeListener.onSharedPreferenceChanged(sharedPreferences, null);
 
-    timer.schedule(checkLocationListener, 0, ONE_MINUTE);
+    timerTask = new TimerTask() {
+        @Override
+      public void run() {
+        if (isRecording() && !isPaused()) {
+          registerLocationListener();
+        }
+      }
+    };
+    timer = new Timer("TrackRecordingServiceTimer");
+    timer.schedule(timerTask, 0, ONE_MINUTE);
 
     /*
      * Try to restart the previous recording track in case the service has been
@@ -357,10 +358,15 @@ public class TrackRecordingService extends Service {
     showNotification(false);
 
     sharedPreferences.unregisterOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
-    checkLocationListener.cancel();
-    checkLocationListener = null;
-    timer.cancel();
-    timer.purge();
+    if (timerTask != null) {
+      timerTask.cancel();
+      timerTask = null;
+    }
+    if (timer != null) {
+      timer.cancel();
+      timer.purge();
+      timer = null;
+    }
     unregisterLocationListener();
 
     try {

MyTracks/src/com/google/android/apps/mytracks/services/sensors/SensorManager.java

@@ -39,30 +39,8 @@ public abstract class SensorManager {
   private SensorState sensorState = SensorState.NONE;
   private long sensorStateTimestamp = System.currentTimeMillis();
 
-  /**
-   * A time task to check sensor connection.
-   */
-  private TimerTask checkSensorConnectionTimeTask = new TimerTask() {
-      @Override
-    public void run() {
-      switch (getSensorState()) {
-        case CONNECTING:
-          if (System.currentTimeMillis() - sensorStateTimestamp > MAX_SENSOR_STATE_AGE) {
-            Log.i(TAG, "Retry setUpChannel");
-            setUpChannel();
-          }
-          break;
-        case NONE:
-        case DISCONNECTED:
-          setUpChannel();
-          break;
-        default:
-          break;
-      }
-    }
-  };
-
-  private final Timer timer = new Timer();
+  private TimerTask timerTask;
+  private Timer timer;
 
   /**
    * Returns true if the sensor is enabled.
@@ -89,14 +67,43 @@ public abstract class SensorManager {
    */
   public void startSensor() {
     setUpChannel();
-    timer.schedule(checkSensorConnectionTimeTask, RETRY_PERIOD, RETRY_PERIOD);
+    timerTask = new TimerTask() {
+      @Override
+      public void run() {
+          switch (getSensorState()) {
+            case CONNECTING:
+              if (System.currentTimeMillis() - sensorStateTimestamp > MAX_SENSOR_STATE_AGE) {
+                Log.i(TAG, "Retry setUpChannel");
+                setUpChannel();
+              }
+              break;
+            case NONE:
+            case DISCONNECTED:
+              setUpChannel();
+              break;
+            default:
+              // CONNECTED or SENDING
+              break;
+          }
+      }
+    };    
+    timer = new Timer("SensorManagerTimer");
+    timer.schedule(timerTask, RETRY_PERIOD, RETRY_PERIOD);
   }
 
   /**
    * Stops the sensor.
    */
   public void stopSensor() {
-    timer.cancel();
+    if (timerTask != null) {
+      timerTask.cancel();
+      timerTask = null;
+    }
+    if (timer != null) {
+      timer.cancel();
+      timer.purge();
+      timer = null;
+    }
     tearDownChannel();
   }
 

MyTracks/src/com/google/android/apps/mytracks/services/tasks/TimerTaskExecutor.java

@@ -33,10 +33,7 @@ public class TimerTaskExecutor {
   private final PeriodicTask periodicTask;
   private final TrackRecordingService trackRecordingService;
 
-  /**
-   * A timer to schedule the announcements. This is non-null if the task is in
-   * started (scheduled) state.
-   */
+  private TimerTask timerTask;
   private Timer timer;
 
   public TimerTaskExecutor(PeriodicTask periodicTask, TrackRecordingService trackRecordingService) {
@@ -50,6 +47,10 @@ public class TimerTaskExecutor {
    * @param interval the interval in milliseconds
    */
   public void scheduleTask(long interval) {
+    if (interval <= 0) {
+      return;
+    }
+
     if (!trackRecordingService.isRecording() || trackRecordingService.isPaused()) {
       return;
     }
@@ -59,43 +60,32 @@ public class TimerTaskExecutor {
       return;
     }
 
-    if (timer != null) {
-      timer.cancel();
-      timer.purge();
-    } else {
-      // First start, or we were previously shut down.
-      periodicTask.start();
-    }
-
-    timer = new Timer();
-    if (interval <= 0) {
-      return;
-    }
-
+    shutdown();
+    periodicTask.start();
+    timerTask = new TimerTask() {
+        @Override
+      public void run() {
+        periodicTask.run(trackRecordingService);
+      }
+    };
+    timer = new Timer("TimerTaskExecutorTimer");
     long next = System.currentTimeMillis() + interval - (tripStatistics.getTotalTime() % interval);
-    timer.scheduleAtFixedRate(new PeriodicTimerTask(), new Date(next), interval);
+    timer.scheduleAtFixedRate(timerTask, new Date(next), interval);
   }
 
   /**
    * Shuts down.
    */
   public void shutdown() {
+    if (timerTask != null) {
+      timerTask.cancel();
+      timerTask = null;
+    }
     if (timer != null) {
       timer.cancel();
       timer.purge();
       timer = null;
-      periodicTask.shutdown();
-    }
-  }
-
-  /**
-   * The timer task to announce the trip status.
-   */
-  private class PeriodicTimerTask extends TimerTask {
-
-    @Override
-    public void run() {
-      periodicTask.run(trackRecordingService);
     }
+    periodicTask.shutdown();
   }
 }

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

@@ -213,19 +213,18 @@ public class StringUtils {
       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 {
+    if (!metricUnits) {
       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);
+    if (reportSpeed) {
+      result[0] = String.format("%.2f", speed);
+    } else {
+      // convert from hours to minutes
+      double pace = speed == 0 ? 0.0 : 60.0 / speed;
+      int minutes = (int) pace;
+      int seconds = (int) Math.round((pace - minutes) * 60.0);
+      result[0] = String.format("%d:%02d", minutes, seconds);  
+    }
     return result;
   }
 

MyTracksTest/src/com/google/android/apps/mytracks/content/DescriptionGeneratorImplTest.java

@@ -68,9 +68,9 @@ public class DescriptionGeneratorImplTest extends AndroidTestCase {
       + "Average speed: 120.00 km/h (74.6 mi/h)<br>"
       + "Average moving speed: 240.00 km/h (149.1 mi/h)<br>"
       + "Max speed: 360.00 km/h (223.7 mi/h)<br>"
-      + "Average pace: 0.50 min/km (0.8 min/mi)<br>"
-      + "Average moving pace: 0.25 min/km (0.4 min/mi)<br>"
-      + "Fastest pace: 0.17 min/km (0.3 min/mi)<br>"
+      + "Average pace: 0:30 min/km (0:48 min/mi)<br>"
+      + "Average moving pace: 0:15 min/km (0:24 min/mi)<br>"
+      + "Fastest pace: 0:10 min/km (0:16 min/mi)<br>"
       + "Max elevation: 550 m (1804 ft)<br>"
       + "Min elevation: -500 m (-1640 ft)<br>"
       + "Elevation gain: 6000 m (19685 ft)<br>"
@@ -103,9 +103,9 @@ public class DescriptionGeneratorImplTest extends AndroidTestCase {
       + "Average speed: 120.00 km/h (74.6 mi/h)\n"
       + "Average moving speed: 240.00 km/h (149.1 mi/h)\n"
       + "Max speed: 360.00 km/h (223.7 mi/h)\n"
-      + "Average pace: 0.50 min/km (0.8 min/mi)\n"
-      + "Average moving pace: 0.25 min/km (0.4 min/mi)\n"
-      + "Fastest pace: 0.17 min/km (0.3 min/mi)\n"
+      + "Average pace: 0:30 min/km (0:48 min/mi)\n"
+      + "Average moving pace: 0:15 min/km (0:24 min/mi)\n"
+      + "Fastest pace: 0:10 min/km (0:16 min/mi)\n"
       + "Max elevation: 550 m (1804 ft)\n"
       + "Min elevation: -500 m (-1640 ft)\n"
       + "Elevation gain: 6000 m (19685 ft)\n"
@@ -162,9 +162,8 @@ public class DescriptionGeneratorImplTest extends AndroidTestCase {
    */
   public void testWritePace() {
     StringBuilder builder = new StringBuilder();
-    descriptionGenerator.writePace(
-        new Pair<Double, Double>(1.1, 2.2), builder, R.string.description_average_pace, "\n");
-    assertEquals("Average pace: 54.55 min/km (27.3 min/mi)\n", builder.toString());
+    descriptionGenerator.writePace(1.1, builder, R.string.description_average_pace, "\n");
+    assertEquals("Average pace: 15:09 min/km (24:23 min/mi)\n", builder.toString());
   }
 
   /**
@@ -197,18 +196,4 @@ public class DescriptionGeneratorImplTest extends AndroidTestCase {
         Double.POSITIVE_INFINITY, builder, R.string.description_max_grade, "<br>");
     assertEquals("Max grade: 0 %<br>", builder.toString());
   }
-
-  /**
-   * Tests {@link DescriptionGeneratorImpl#getPace(double)}.
-   */
-  public void testGetPace() {
-    assertEquals(12.0, descriptionGenerator.getPace(5));
-  }
-
-  /**
-   * Tests {@link DescriptionGeneratorImpl#getPace(double)} with zero speed.
-   */
-  public void testGetPace_zero() {
-    assertEquals(0.0, descriptionGenerator.getPace(0));
-  }
 }