TrackDetailActivity: disable activity type changer in view mode.

Fix #3.

src/main/java/de/dennisguse/opentracks/TrackDetailActivity.java

@@ -94,8 +94,6 @@ public class TrackDetailActivity extends AbstractListActivity implements ChooseA
     // Preferences
     private long recordingTrackId = PreferencesUtils.RECORDING_TRACK_ID_DEFAULT;
     private boolean recordingTrackPaused = PreferencesUtils.RECORDING_TRACK_PAUSED_DEFAULT;
-    @Deprecated //TODO Not required to be member variable.
-    private boolean showOnLockScreen = getResources().getBoolean(R.bool.stats_show_on_lockscreen_while_recording_default);
 
     private final Runnable bindChangedCallback = new Runnable() {
         @Override
@@ -135,7 +133,6 @@ public class TrackDetailActivity extends AbstractListActivity implements ChooseA
             }
 
             if (PreferencesUtils.isKey(TrackDetailActivity.this, R.string.stats_show_on_lockscreen_while_recording_key, key)) {
-                showOnLockScreen = PreferencesUtils.shouldShowStatsOnLockscreen(TrackDetailActivity.this);
                 setLockscreenPolicy();
             }
 
@@ -228,12 +225,14 @@ public class TrackDetailActivity extends AbstractListActivity implements ChooseA
     }
 
     private void setLockscreenPolicy() {
+        boolean showOnLockScreen = PreferencesUtils.shouldShowStatsOnLockscreen(TrackDetailActivity.this);
+
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
             setShowWhenLocked(showOnLockScreen);
+        } else if (showOnLockScreen) {
+            getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
         } else {
-            if (showOnLockScreen)
-                getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
-            else getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
+            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
         }
     }
 

src/main/java/de/dennisguse/opentracks/fragments/StatsFragment.java

@@ -67,7 +67,6 @@ public class StatsFragment extends Fragment implements TrackDataListener {
 
     private Location lastLocation = null;
     private TripStatistics lastTripStatistics = null;
-    private SensorDataSet sensorDataSet = null;
 
     private final Runnable updateUIeachSecond = new Runnable() {
         public void run() {
@@ -304,9 +303,10 @@ public class StatsFragment extends Fragment implements TrackDataListener {
      */
     private void updateSensorDataUI() {
         ITrackRecordingService trackRecordingService = trackRecordingServiceConnection.getServiceIfBound();
+
+        SensorDataSet sensorDataSet = null;
         if (trackRecordingService == null) {
             Log.d(STATS_FRAGMENT_TAG, "Cannot get the track recording service.");
-            sensorDataSet = null;
         } else {
             //TODO sensorState = trackRecordingService.getSensorState();
             sensorDataSet = trackRecordingService.getSensorData();

src/main/java/de/dennisguse/opentracks/util/StatsUtils.java

@@ -151,6 +151,8 @@ public class StatsUtils {
     public static void setTripStatisticsValues(Activity activity, TripStatistics tripStatistics, String trackIconValue) {
         boolean metricUnits = PreferencesUtils.isMetricUnits(activity);
         boolean reportSpeed = PreferencesUtils.isReportSpeed(activity);
+        boolean isRecording = PreferencesUtils.isRecording(activity);
+        ;
 
         // Set total distance
         {
@@ -173,6 +175,7 @@ public class StatsUtils {
             if (trackIconValue != null) {
                 TrackIconUtils.setIconSpinner(spinner, trackIconValue);
             }
+            spinner.setEnabled(isRecording);
         }
 
         // Set time