merge heads

MyTracks/res/values/keys.xml

@@ -41,6 +41,8 @@ limitations under the License.
   <string name="stats_rate_key">statsRate</string>  
   <string name="stats_show_coordinate_key">statsShowCoordinate</string>
   <string name="stats_show_grade_elevation_key">statsShowGradeElevation</string>
+  <string name="stats_show_calorie_key">statsShowCalorie</string>
+  <string name="stats_weight_key">statsWeight</string>
   <string name="stats_units_key">statsUnits</string>
   <string name="track_color_mode_medium_key">trackColorModeMedium</string>
   <string name="track_color_mode_percentage_key">trackColorModePercentage</string>

MyTracks/res/values/strings.xml

@@ -2014,6 +2014,16 @@ limitations under the License.
       Character limit: ~23 (1 line)">
     Grade/Elevation
   </string>
+  <string name="settings_stats_calorie_weight"
+    translation_description="In the 'Stats settings, the option to configure user's weight.
+
+      Character limit: ~23 (1 line)">
+    Weight
+  </string>
+  <string name="settings_stats_calorie_weight_description"
+    translation_description="In the 'Stats settings, the description message about weight setting item.">
+    Weight for calculating calories.
+  </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 (min/mi).
@@ -2134,7 +2144,7 @@ limitations under the License.
     translation_description="In the 'Stats' page, the calorie burned.
     
       Character limit: ~23 (1 line)">
-    Calorie expenditure
+    Calories
   </string>
   <string name="stats_fastest_pace"
     translation_description="In the 'Stats' page, the fastest pace.">
@@ -2491,6 +2501,12 @@ limitations under the License.
       %1$d: an integer value. E.g., '2'.">
     %1$d km
   </string>
+  <string name="value_integer_kilogram"
+    translation_description="Display an integer value in kilogram (kg).
+
+      %1$d: an integer value. E.g., '2'.">
+    %1$d kg
+  </string>
   <string name="value_integer_kilometer_hour"
     translation_description="Display an integer value in kilometers per hour (km/h).
 
@@ -2552,6 +2568,12 @@ limitations under the License.
       %1$d: an integer value. E.g., '2'.">
     %1$d %%
   </string>
+  <string name="value_integer_pound"
+    translation_description="Display an integer value in pound (lb).
+
+      %1$d: an integer value. E.g., '2'.">
+    %1$d lb
+  </string>
   <string name="value_integer_second"
     translation_description="In a setting picker, the string format to display an integer value in
       seconds (s).

MyTracks/res/xml/stats_settings.xml

@@ -33,5 +33,16 @@ limitations under the License.
       android:defaultValue="false"
       android:key="@string/stats_show_coordinate_key"
       android:title="@string/settings_stats_coordinate" />
+    <CheckBoxPreference
+      android:defaultValue="false"
+      android:key="@string/stats_show_calorie_key"
+      android:title="@string/stats_calorie" />
+    <EditTextPreference
+      android:dependency="@string/stats_show_calorie_key"
+      android:imeOptions="actionDone"
+      android:inputType="number"
+      android:key="@string/stats_weight_key"
+      android:persistent="false"
+      android:title="@string/settings_stats_calorie_weight" />
   </PreferenceCategory>
 </PreferenceScreen>

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

@@ -451,7 +451,8 @@ public class ChartFragment extends Fragment implements TrackDataListener {
     double power = Double.NaN;
 
     if (tripStatisticsUpdater != null) {
-      tripStatisticsUpdater.addLocation(location, recordingDistanceInterval);
+      tripStatisticsUpdater.addLocation(location, recordingDistanceInterval, PreferencesUtils
+          .getInt(getActivity(), R.string.stats_weight_key, PreferencesUtils.STATS_WEIGHT_DEFAULT));
       TripStatistics tripStatistics = tripStatisticsUpdater.getTripStatistics();
       if (chartByDistance) {
         double distance = tripStatistics.getTotalDistance() * UnitConversions.M_TO_KM;

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

@@ -242,8 +242,12 @@ abstract class AbstractFileTrackImporter extends DefaultHandler implements Track
             // No more track points. Ignore the rest of the waypoints.
             return;
           }
-          trackTripStatisticstrackUpdater.addLocation(trackPoint, recordingDistanceInterval);
-          markerTripStatisticsUpdater.addLocation(trackPoint, recordingDistanceInterval);
+          trackTripStatisticstrackUpdater.addLocation(trackPoint, recordingDistanceInterval,
+              PreferencesUtils.getInt(context, R.string.stats_weight_key,
+                  PreferencesUtils.STATS_WEIGHT_DEFAULT));
+          markerTripStatisticsUpdater.addLocation(trackPoint, recordingDistanceInterval,
+              PreferencesUtils.getInt(context, R.string.stats_weight_key,
+                  PreferencesUtils.STATS_WEIGHT_DEFAULT));
         }
         if (waypoint.getLocation().getTime() > trackPoint.getTime()) {
           trackPoint = null;
@@ -533,7 +537,9 @@ abstract class AbstractFileTrackImporter extends DefaultHandler implements Track
       trackData.tripStatisticsUpdater = new TripStatisticsUpdater(
           location.getTime() != -1L ? location.getTime() : trackData.importTime);
     }
-    trackData.tripStatisticsUpdater.addLocation(location, recordingDistanceInterval);
+    trackData.tripStatisticsUpdater.addLocation(location, recordingDistanceInterval,
+        PreferencesUtils.getInt(context, R.string.stats_weight_key,
+            PreferencesUtils.STATS_WEIGHT_DEFAULT));
 
     trackData.bufferedLocations[trackData.numBufferedLocations] = location;
     trackData.numBufferedLocations++;

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

@@ -277,7 +277,8 @@ public class SendMapsAsyncTask extends AbstractSendAsyncTask {
           sentStartMarker = true;
         }
 
-        tripStatisticsUpdater.addLocation(location, recordingDistanceInterval);
+        tripStatisticsUpdater.addLocation(location, recordingDistanceInterval, PreferencesUtils
+            .getInt(context, R.string.stats_weight_key, PreferencesUtils.STATS_WEIGHT_DEFAULT));
         if (i % elevationSamplingFrequency == 0) {
           distances.add(tripStatisticsUpdater.getTripStatistics().getTotalDistance());
           elevations.add(tripStatisticsUpdater.getSmoothedElevation());

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

@@ -659,9 +659,13 @@ public class TrackRecordingService extends Service {
         if (cursor.moveToLast()) {
           do {
             Location location = myTracksProviderUtils.createTrackPoint(cursor);
-            trackTripStatisticsUpdater.addLocation(location, recordingDistanceInterval);
+            trackTripStatisticsUpdater.addLocation(location, recordingDistanceInterval,
+                PreferencesUtils.getInt(context, R.string.stats_weight_key,
+                    PreferencesUtils.STATS_WEIGHT_DEFAULT));
             if (location.getTime() > markerStartTime) {
-              markerTripStatisticsUpdater.addLocation(location, recordingDistanceInterval);
+              markerTripStatisticsUpdater.addLocation(location, recordingDistanceInterval,
+                  PreferencesUtils.getInt(context, R.string.stats_weight_key,
+                      PreferencesUtils.STATS_WEIGHT_DEFAULT));
             }
           } while (cursor.moveToPrevious());
         }
@@ -1001,8 +1005,10 @@ public class TrackRecordingService extends Service {
     try {
       Uri uri = myTracksProviderUtils.insertTrackPoint(location, track.getId());
       long trackPointId = Long.parseLong(uri.getLastPathSegment());
-      trackTripStatisticsUpdater.addLocation(location, recordingDistanceInterval);
-      markerTripStatisticsUpdater.addLocation(location, recordingDistanceInterval);
+      trackTripStatisticsUpdater.addLocation(location, recordingDistanceInterval, PreferencesUtils
+          .getInt(context, R.string.stats_weight_key, PreferencesUtils.STATS_WEIGHT_DEFAULT));
+      markerTripStatisticsUpdater.addLocation(location, recordingDistanceInterval, PreferencesUtils
+          .getInt(context, R.string.stats_weight_key, PreferencesUtils.STATS_WEIGHT_DEFAULT));
       updateRecordingTrack(track, trackPointId, LocationUtils.isValidLocation(location));
     } catch (SQLiteException e) {
       /*

MyTracks/src/com/google/android/apps/mytracks/settings/StatsSettingsActivity.java

@@ -17,12 +17,22 @@
 package com.google.android.apps.mytracks.settings;
 
 import com.google.android.apps.mytracks.util.PreferencesUtils;
+import com.google.android.apps.mytracks.util.UnitConversions;
 import com.google.android.maps.mytracks.R;
 
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
 import android.os.Bundle;
+import android.preference.CheckBoxPreference;
+import android.preference.EditTextPreference;
 import android.preference.ListPreference;
 import android.preference.Preference;
 import android.preference.Preference.OnPreferenceChangeListener;
+import android.preference.Preference.OnPreferenceClickListener;
+import android.text.InputType;
+import android.util.Log;
+import android.widget.EditText;
 
 /**
  * An activity for accessing stats settings.
@@ -31,12 +41,25 @@ import android.preference.Preference.OnPreferenceChangeListener;
  */
 public class StatsSettingsActivity extends AbstractSettingsActivity {
 
+  private static final String TAG = MapSettingsActivity.class.getSimpleName();
+
+  private CheckBoxPreference caloriePreference;
+  private EditTextPreference weightPreference;
+
+  private static final int WEIGHT_INPUT_DIALOG = 1;
+
   @SuppressWarnings("deprecation")
   @Override
   protected void onCreate(Bundle bundle) {
     super.onCreate(bundle);
     addPreferencesFromResource(R.xml.stats_settings);
 
+    caloriePreference = (CheckBoxPreference) findPreference(getString(R.string.stats_show_calorie_key));
+    weightPreference = (EditTextPreference) findPreference(getString(R.string.stats_weight_key));
+
+    configCaloriePreference();
+    configWeightPreference();
+    updateWeightSummary();
     /*
      * Note configureUnitsListPreference will trigger
      * configureRateListPreference
@@ -49,17 +72,22 @@ public class StatsSettingsActivity extends AbstractSettingsActivity {
    */
   private void configUnitsListPreference() {
     @SuppressWarnings("deprecation")
-    ListPreference listPreference = (ListPreference) findPreference(
-        getString(R.string.stats_units_key));
+    ListPreference listPreference = (ListPreference) findPreference(getString(R.string.stats_units_key));
     OnPreferenceChangeListener listener = new OnPreferenceChangeListener() {
-        @Override
+      @Override
       public boolean onPreferenceChange(Preference pref, Object newValue) {
         configRateListPreference(PreferencesUtils.STATS_UNITS_DEFAULT.equals((String) newValue));
+
+        /*
+         * It is necessary to change the weight summary as they are in the same
+         * activity.
+         */
+        updateWeightSummary(PreferencesUtils.STATS_UNITS_DEFAULT.equals((String) newValue));
         return true;
       }
     };
-    String value = PreferencesUtils.getString(
-        this, R.string.stats_units_key, PreferencesUtils.STATS_UNITS_DEFAULT);
+    String value = PreferencesUtils.getString(this, R.string.stats_units_key,
+        PreferencesUtils.STATS_UNITS_DEFAULT);
     String[] values = getResources().getStringArray(R.array.stats_units_values);
     String[] options = getResources().getStringArray(R.array.stats_units_options);
     configureListPreference(listPreference, options, options, values, value, listener);
@@ -72,13 +100,157 @@ public class StatsSettingsActivity extends AbstractSettingsActivity {
    */
   private void configRateListPreference(boolean metricUnits) {
     @SuppressWarnings("deprecation")
-    ListPreference listPreference = (ListPreference) findPreference(
-        getString(R.string.stats_rate_key));
-    String value = PreferencesUtils.getString(
-        this, R.string.stats_rate_key, PreferencesUtils.STATS_RATE_DEFAULT);
+    ListPreference listPreference = (ListPreference) findPreference(getString(R.string.stats_rate_key));
+    String value = PreferencesUtils.getString(this, R.string.stats_rate_key,
+        PreferencesUtils.STATS_RATE_DEFAULT);
     String[] values = getResources().getStringArray(R.array.stats_rate_values);
     String[] options = getResources().getStringArray(
         metricUnits ? R.array.stats_rate_metric_options : R.array.stats_rate_imperial_options);
     configureListPreference(listPreference, options, options, values, value, null);
   }
+
+  /**
+   * Configures the calorie preference.
+   * 
+   * @param reference to configure
+   * @param key of the preference
+   * @param defaultValue default value of this preference
+   */
+  private void configCaloriePreference() {
+    caloriePreference.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
+      @SuppressWarnings("deprecation")
+      @Override
+      public boolean onPreferenceChange(Preference preference, Object newValue) {
+        boolean value = (Boolean) newValue;
+        if (value) {
+          showDialog(WEIGHT_INPUT_DIALOG);
+        }
+        return true;
+      }
+    });
+  }
+
+  @Override
+  @Deprecated
+  protected Dialog onCreateDialog(int id) {
+    Dialog dialog = null;
+    switch (id) {
+      case WEIGHT_INPUT_DIALOG:
+        final EditText weightInput = new EditText(this);
+        weightInput.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);
+        weightInput.setText(Integer.toString(PreferencesUtils.STATS_WEIGHT_DEFAULT));
+        weightInput.setSelectAllOnFocus(true);
+        dialog = (new AlertDialog.Builder(this))
+            .setMessage(R.string.settings_stats_calorie_weight_description)
+            .setNegativeButton(R.string.generic_cancel, null)
+            .setPositiveButton(R.string.generic_ok,
+                new DialogInterface.OnClickListener() {
+                  public void onClick(DialogInterface dialogInterface, int number) {
+                    storeWeightValue(weightInput.getText().toString());
+                    updateWeightSummary();
+                    dialogInterface.cancel();
+                  }
+                }).setTitle(R.string.settings_stats_calorie_weight).setView(weightInput).create();
+        break;
+      default:
+        break;
+    }
+    return dialog;
+  }
+
+  /**
+   * Configures the weight preference.
+   * 
+   * @param preference to configure
+   * @param key of the preference
+   * @param defaultValue default value of this preference
+   * @param isEnable true means enable the weight preference
+   */
+  private void configWeightPreference() {
+    weightPreference.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
+      @Override
+      public boolean onPreferenceChange(Preference preference, Object newValue) {
+        storeWeightValue((String) newValue);
+        updateWeightSummary();
+        return true;
+      }
+    });
+
+    weightPreference.setOnPreferenceClickListener(new OnPreferenceClickListener() {
+      @Override
+      public boolean onPreferenceClick(Preference pref) {
+        int value = getWeightDisplayValue(PreferencesUtils.isMetricUnits(getApplicationContext()));
+        ((EditTextPreference) pref).getEditText().setText(String.valueOf(value));
+        return true;
+      }
+    });
+  }
+
+  /**
+   * Updates the weight summary.
+   * 
+   * @param preference the preference
+   * @param keyId the key id
+   * @param defaultValue the default value
+   */
+  private void updateWeightSummary() {
+    boolean metricUnits = PreferencesUtils.isMetricUnits(this);
+    updateWeightSummary(metricUnits);
+  }
+
+  /**
+   * Updates the weight summary.
+   * 
+   * @param preference the preference
+   * @param keyId the key id
+   * @param defaultValue the default value
+   * @param metricUnits the status of metric units
+   */
+  private void updateWeightSummary(boolean metricUnits) {
+    int displayValue = getWeightDisplayValue(metricUnits);
+    weightPreference.setSummary(getString(metricUnits ? R.string.value_integer_kilogram
+        : R.string.value_integer_pound, displayValue));
+  }
+
+  /**
+   * Gets the weight display value in metric or imperial depending on the
+   * preferred units.
+   * 
+   * @param keyId the key id
+   * @param defaultValue the default value
+   */
+  private int getWeightDisplayValue(boolean metricUnits) {
+    int value = PreferencesUtils.getInt(this, R.string.stats_weight_key,
+        PreferencesUtils.STATS_WEIGHT_DEFAULT);
+    if (!metricUnits) {
+      value = (int) Math.round(value * UnitConversions.KG_TO_LB);
+    }
+    return value;
+  }
+
+  /**
+   * Stores the weight value, always in metric units.
+   * 
+   * @param keyId the key id
+   * @param defaultValue the default value
+   * @param displayValue the display value
+   */
+  private void storeWeightValue(String displayValue) {
+    /*
+     * TODO add a method to an abstract class or an utility class to avoid
+     * duplicating store preference logic in MapSettingsActivity.java.
+     */
+    int value;
+    try {
+      value = Integer.parseInt(displayValue);
+      if (!PreferencesUtils.isMetricUnits(this)) {
+        value = (int) (value * UnitConversions.LB_TO_KG);
+      }
+    } catch (NumberFormatException e) {
+      Log.e(TAG, "invalid value " + displayValue);
+      value = PreferencesUtils.STATS_WEIGHT_DEFAULT;
+    }
+
+    PreferencesUtils.setInt(this, R.string.stats_weight_key, value);
+  }
 }

MyTracks/src/com/google/android/apps/mytracks/stats/TripStatisticsUpdater.java

@@ -93,9 +93,6 @@ public class TripStatisticsUpdater {
 
   // A buffer of the recent speed readings (m/s) for calculating max speed
   private final DoubleBuffer speedBuffer = new DoubleBuffer(SPEED_SMOOTHING_FACTOR);
-
-  // Default weight, in kilogram
-  private int defaultWeight = 65;
   
   /**
    * Creates a new trip statistics updater.
@@ -128,7 +125,7 @@ public class TripStatisticsUpdater {
    * @param location the location
    * @param minRecordingDistance the min recording distance
    */
-  public void addLocation(Location location, int minRecordingDistance) {
+  public void addLocation(Location location, int minRecordingDistance, int weight) {
     // Always update time
     updateTime(location.getTime());
 
@@ -195,10 +192,10 @@ public class TripStatisticsUpdater {
 
     // TODO 1: How to get the value of weight.
     // TODO 2: How to get the value of ActivityType.
-    
+
     // Update calorie
-    double calorie = CalorieUtils.getCalories(lastMovingLocation, location,
-        gradeBuffer.getAverage(), defaultWeight, ActivityType.FOOT);
+    double calorie = CalorieUtils.getCalorie(lastMovingLocation, location,
+        gradeBuffer.getAverage(), weight, ActivityType.FOOT);
     currentSegment.addCalorie(calorie);
 
     lastLocation = location;

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

@@ -20,7 +20,7 @@ import com.google.common.annotations.VisibleForTesting;
 import android.location.Location;
 
 /**
- * Utils to calculate caloric expenditure.
+ * Utils to calculate calories.
  * 
  * @author youtaol
  */
@@ -76,7 +76,7 @@ public class CalorieUtils {
    * @return the VO2 value in ml/kg/min.
    */
   @VisibleForTesting
-  static double calculateWalkingVo2(double speed, double grade) {
+  static double getLowSpeedFootVo2(double speed, double grade) {
     // Change meters per second to meters per minute
     speed = speed / UnitConversions.S_TO_MIN;
     /*
@@ -97,7 +97,7 @@ public class CalorieUtils {
    * @return the VO2 value in ml/kg/min.
    */
   @VisibleForTesting
-  static double calculateRunningVo2(double speed, double grade) {
+  static double getHighSpeedFootVo2(double speed, double grade) {
     // Change meters per second to meters per minute
     speed = speed / UnitConversions.S_TO_MIN;
     /*
@@ -131,7 +131,7 @@ public class CalorieUtils {
    * @return the power value watts(Joule/second).
    */
   @VisibleForTesting
-  static double calculateCyclingCalories(double speed, double grade, int weight, double timeUsed) {
+  static double calculateCyclingCalorie(double speed, double grade, int weight, double timeUsed) {
     // Get the Power, the unit is Watt (Joule/second)
     double power = earthGravity * weight * speed * (K1 + grade) + K2 * (speed * speed * speed);
 
@@ -140,16 +140,16 @@ public class CalorieUtils {
   }
 
   /**
-   * Calculates the calories expenditure by cycling.
+   * Calculates the calories by cycling.
    * 
    * @param start the start location
    * @param stop the stop location
    * @param grade the grade to calculate
    * @param weight the weight of user, in kilogram
-   * @return the calories expenditure between the start and stop location.
+   * @return the calories between the start and stop location.
    */
   @VisibleForTesting
-  static double calculateExpenditureCycling(Location start, Location stop, double grade, int weight) {
+  static double calculateCalorieCycling(Location start, Location stop, double grade, int weight) {
     // Gets duration in seconds
     double duration = (double) (stop.getTime() - start.getTime()) * UnitConversions.MS_TO_S;
     // Get speed in meters per second
@@ -158,25 +158,24 @@ public class CalorieUtils {
       grade = 0.0;
     }
 
-    return calculateCyclingCalories(speed, grade, weight, duration);
+    return calculateCyclingCalorie(speed, grade, weight, duration);
   }
 
   /**
-   * Calculates the calories expenditure by running or walking.
+   * Calculates the calories by running or walking.
    * 
    * @param start the start location
    * @param stop the stop location
    * @param grade the grade to calculate
    * @param weight the weight of user, in kilogram
-   * @return the calories expenditure between the start and stop location, in
-   *         calories.
+   * @return the calories between the start and stop location, in calories.
    */
   @VisibleForTesting
-  static double calculateExpenditureFoot(Location start, Location stop, double grade, int weight) {
+  static double calculateCalorieFoot(Location start, Location stop, double grade, int weight) {
     // Get speed in meters per second
     double averageSpeed = (start.getSpeed() + stop.getSpeed()) / 2.0;
     // Get VO2 in mL/kg/min
-    double vo2 = getVo2(averageSpeed, grade);
+    double vo2 = getFootVo2(averageSpeed, grade);
     // Minutes
     double time = (double) (stop.getTime() - start.getTime()) * UnitConversions.MS_TO_S
         * UnitConversions.S_TO_MIN;
@@ -193,31 +192,28 @@ public class CalorieUtils {
    * @return the VO2 value.
    */
   @VisibleForTesting
-  static double getVo2(double speed, double grade) {
+  static double getFootVo2(double speed, double grade) {
     if (grade < 0) {
       grade = 0.0;
     }
 
-    return speed > CRTICAL_SPEED_RUNNING ? calculateRunningVo2(speed, grade) : calculateWalkingVo2(
+    return speed > CRTICAL_SPEED_RUNNING ? getHighSpeedFootVo2(speed, grade) : getLowSpeedFootVo2(
         speed, grade);
   }
 
   /**
-   * Calculates the calories expenditure between two locations.
+   * Calculates the calories between two locations.
    * 
    * @param start the start location
    * @param stop the stop location
    * @param grade the grade to calculate
    * @param weight the weight of user
    * @param activityType can be foot or cycling
-   * @return the calories expenditure between the start and stop location.
+   * @return the calories between the start and stop location.
    */
-  public static double getCalories(Location start, Location stop, double grade, int weight,
+  public static double getCalorie(Location start, Location stop, double grade, int weight,
       ActivityType activityType) {
-    if (ActivityType.CYCLING == activityType) {
-      return calculateExpenditureCycling(start, stop, grade, weight);
-    } else {
-      return calculateExpenditureFoot(start, stop, grade, weight);
-    }
+    return ActivityType.CYCLING == activityType ? calculateCalorieCycling(start, stop, grade,
+        weight) : calculateCalorieFoot(start, stop, grade, weight);
   }
 }

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

@@ -105,6 +105,8 @@ public class PreferencesUtils {
   public static final boolean STATS_SHOW_COORDINATE_DEFAULT = false;
   public static final boolean STATS_SHOW_GRADE_ELEVATION_DEFAULT = false;
   public static final String STATS_UNITS_DEFAULT = "METRIC";
+  public static final boolean STATS_SHOW_CALORIE_DEFAULT = false;
+  public static final int STATS_WEIGHT_DEFAULT = 65; // in kilogram
   
   // Track color
   public static final String TRACK_COLOR_MODE_DEFAULT = "SINGLE";

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

@@ -175,8 +175,20 @@ public class StatsUtils {
     }
     
     // Set calories
-    double calories = tripStatistics == null ? Double.NaN : tripStatistics.getCalorie();
-    setCalorie(activity, R.id.stats_calorie, R.string.stats_calorie, calories);
+    boolean showCalorie = PreferencesUtils.getBoolean(activity, R.string.stats_show_calorie_key,
+        PreferencesUtils.STATS_SHOW_CALORIE_DEFAULT);
+    View calorieHorizontalLine = activity.findViewById(R.id.stats_calorie_horizontal_line);
+    View calorieContainer = activity.findViewById(R.id.stats_calorie_container);
+
+    if (showCalorie) {
+      calorieHorizontalLine.setVisibility(View.VISIBLE);
+      calorieContainer.setVisibility(View.VISIBLE);
+      double calories = tripStatistics == null ? Double.NaN : tripStatistics.getCalorie();
+      setCalorie(activity, R.id.stats_calorie, R.string.stats_calorie, calories);
+    } else {
+      calorieHorizontalLine.setVisibility(View.GONE);
+      calorieContainer.setVisibility(View.GONE);
+    }  
   }
 
   /**

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

@@ -24,27 +24,33 @@ public class UnitConversions {
 
   private UnitConversions() {}
 
-  // Milliliter to liter
+  // multiplication factor to convert milliliters to liters
   public static final double ML_TO_L = 1 / 1000.0;
 
-  // Millisecond to second
+  // multiplication factor to convert milliseconds to seconds
   public static final double MS_TO_S = 1 / 1000.0;
 
-  // Minute to second
+  // multiplication factor to convert minutes to seconds
   public static final double MIN_TO_S = 60.0;
 
-  // Second to minute
+  // multiplication factor to convert seconds to minutes
   public static final double S_TO_MIN = 1 / MIN_TO_S;
 
-  // Minute to hour
+  // multiplication factor to convert hours to minutes
   public static final double HR_TO_MIN = 60.0;
 
-  // Minute to hour
+  // multiplication factor to convert minutes to hours
   public static final double MIN_TO_HR = 1 / HR_TO_MIN;
 
   // multiplication factor to convert kilometers to miles
   public static final double KM_TO_MI = 0.621371192;
 
+  // multiplication factor to convert kilograms to pounds
+  public static final double KG_TO_LB = 2.2046;
+
+  // multiplication factor to convert pounds to kilograms
+  public static final double LB_TO_KG = 1 / KG_TO_LB;
+
   // multiplication factor to convert miles to kilometers
   public static final double MI_TO_KM = 1 / KM_TO_MI;
 
@@ -71,6 +77,6 @@ public class UnitConversions {
   // multiplication factor to convert degrees to radians
   public static final double DEG_TO_RAD = Math.PI / 180.0;
 
-  // Ratio of change kcal to joule.
+  // multiplication factor to convert Kcal to joules.
   public static final double KCAL_TO_J = 4.184;
 }

MyTracksTest/src/com/google/android/apps/mytracks/stats/TripStatisticsUpdaterTest.java

@@ -223,8 +223,9 @@ public class TripStatisticsUpdaterTest extends TestCase {
       // Each time slice is 10 seconds.
       Location location = getLocation(i + locationOffset, (i + locationOffset) * .001, MOVING_SPEED,
           startTime + (timeOffset + i) * TEN_SECONDS);
-      tripStatisticsUpdater.addLocation(
-          location, PreferencesUtils.RECORDING_DISTANCE_INTERVAL_DEFAULT);
+      tripStatisticsUpdater.addLocation(location,
+          PreferencesUtils.RECORDING_DISTANCE_INTERVAL_DEFAULT,
+          PreferencesUtils.STATS_WEIGHT_DEFAULT);
       tripStatistics = tripStatisticsUpdater.getTripStatistics();
 
       assertEquals((timeOffset + i) * TEN_SECONDS, tripStatistics.getTotalTime());
@@ -269,8 +270,9 @@ public class TripStatisticsUpdaterTest extends TestCase {
     for (int i = 0; i < points; i++) {
       Location location = getLocation(
           locationOffset, locationOffset * .001, 0, startTime + (i + timeOffset) * TEN_SECONDS);
-      tripStatisticsUpdater.addLocation(
-          location, PreferencesUtils.RECORDING_DISTANCE_INTERVAL_DEFAULT);
+      tripStatisticsUpdater.addLocation(location,
+          PreferencesUtils.RECORDING_DISTANCE_INTERVAL_DEFAULT,
+          PreferencesUtils.STATS_WEIGHT_DEFAULT);
 
       tripStatistics = tripStatisticsUpdater.getTripStatistics();
       assertEquals((i + timeOffset) * TEN_SECONDS, tripStatistics.getTotalTime());
@@ -306,8 +308,9 @@ public class TripStatisticsUpdaterTest extends TestCase {
       // 99999 means a speed should bigger than given speed.
       Location location = getLocation(i + locationOffset, (i + locationOffset) * .001, 99999,
           startTime + (timeOffset + i) * TEN_SECONDS);
-      tripStatisticsUpdater.addLocation(
-          location, PreferencesUtils.RECORDING_DISTANCE_INTERVAL_DEFAULT);
+      tripStatisticsUpdater.addLocation(location,
+          PreferencesUtils.RECORDING_DISTANCE_INTERVAL_DEFAULT,
+          PreferencesUtils.STATS_WEIGHT_DEFAULT);
       tripStatistics = tripStatisticsUpdater.getTripStatistics();
 
       assertTrue(tripStatistics.getMovingTime() <= tripStatistics.getTotalTime());

MyTracksTest/src/com/google/android/apps/mytracks/util/CalorieUtilsTest.java

@@ -44,9 +44,9 @@ public class CalorieUtilsTest extends TestCase {
    * Checks using foot calculation equation.
    */
   public void testGetCalories_foot() {
-    double actual = CalorieUtils.getCalories(start, stop, grade, weight,
+    double actual = CalorieUtils.getCalorie(start, stop, grade, weight,
         CalorieUtils.ActivityType.FOOT);
-    double expected = CalorieUtils.calculateExpenditureFoot(start, stop, grade, weight);
+    double expected = CalorieUtils.calculateCalorieFoot(start, stop, grade, weight);
     assertEquals(expected, actual);
   }
 
@@ -56,9 +56,9 @@ public class CalorieUtilsTest extends TestCase {
   public void testGetCalories_footNegativeGrade() {
     double actualGrade = -5;
     double expectGrade = 0;
-    double actual = CalorieUtils.getCalories(start, stop, actualGrade, weight,
+    double actual = CalorieUtils.getCalorie(start, stop, actualGrade, weight,
         CalorieUtils.ActivityType.FOOT);
-    double expected = CalorieUtils.calculateExpenditureFoot(start, stop, expectGrade, weight);
+    double expected = CalorieUtils.calculateCalorieFoot(start, stop, expectGrade, weight);
     assertEquals(expected, actual);
   }
 
@@ -66,9 +66,9 @@ public class CalorieUtilsTest extends TestCase {
    * Checks using cycling calculation equation.
    */
   public void testGetCalories_cycling() {
-    double actual = CalorieUtils.getCalories(start, stop, grade, weight,
+    double actual = CalorieUtils.getCalorie(start, stop, grade, weight,
         CalorieUtils.ActivityType.CYCLING);
-    double expected = CalorieUtils.calculateExpenditureCycling(start, stop, grade, weight);
+    double expected = CalorieUtils.calculateCalorieCycling(start, stop, grade, weight);
     assertEquals(expected, actual);
   }
 
@@ -76,8 +76,8 @@ public class CalorieUtilsTest extends TestCase {
    * Checks using running VO2 equation.
    */
   public void testGetVO2_running() {
-    double actual = CalorieUtils.getVo2(CalorieUtils.CRTICAL_SPEED_RUNNING * 2, grade);
-    double expected = CalorieUtils.calculateRunningVo2(CalorieUtils.CRTICAL_SPEED_RUNNING * 2,
+    double actual = CalorieUtils.getFootVo2(CalorieUtils.CRTICAL_SPEED_RUNNING * 2, grade);
+    double expected = CalorieUtils.getHighSpeedFootVo2(CalorieUtils.CRTICAL_SPEED_RUNNING * 2,
         grade);
     assertEquals(expected, actual);
   }
@@ -89,8 +89,8 @@ public class CalorieUtilsTest extends TestCase {
     // Test at half the critical speed
     double footSpeed = CalorieUtils.CRTICAL_SPEED_RUNNING / 2.0;
 
-    double actual = CalorieUtils.getVo2(footSpeed, grade);
-    double expected = CalorieUtils.calculateWalkingVo2(footSpeed, grade);
+    double actual = CalorieUtils.getFootVo2(footSpeed, grade);
+    double expected = CalorieUtils.getLowSpeedFootVo2(footSpeed, grade);
     assertEquals(expected, actual);
   }