Use a location image button on the map view to show current location.

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

@@ -237,9 +237,7 @@ public class TrackDetailActivity extends AbstractMyTracksActivity
     menu.findItem(R.id.track_detail_chart_settings).setVisible(
         ChartFragment.CHART_FRAGMENT_TAG.equals(currentTabTag));
     menu.findItem(R.id.track_detail_stats_settings).setVisible(
-        StatsFragment.STATS_FRAGMENT_TAG.equals(currentTabTag));
-    menu.findItem(R.id.track_detail_my_location)
-        .setVisible(MapFragment.MAP_FRAGMENT_TAG.equals(currentTabTag));
+        StatsFragment.STATS_FRAGMENT_TAG.equals(currentTabTag));   
     MenuItem satelliteMode = menu.findItem(R.id.track_detail_satellite_mode)
         .setVisible(MapFragment.MAP_FRAGMENT_TAG.equals(currentTabTag));
     
@@ -343,13 +341,6 @@ public class TrackDetailActivity extends AbstractMyTracksActivity
         DeleteOneTrackDialogFragment.newInstance(trackId).show(
             getSupportFragmentManager(), DeleteOneTrackDialogFragment.DELETE_ONE_TRACK_DIALOG_TAG);
         return true;
-      case R.id.track_detail_my_location:
-        mapFragment = (MapFragment) getSupportFragmentManager()
-            .findFragmentByTag(MapFragment.MAP_FRAGMENT_TAG);
-        if (mapFragment != null) {
-          mapFragment.showMyLocation();
-        }
-        return true;
       case R.id.track_detail_satellite_mode:
         mapFragment = (MapFragment) getSupportFragmentManager()
             .findFragmentByTag(MapFragment.MAP_FRAGMENT_TAG);

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

@@ -43,6 +43,7 @@ import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ImageButton;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -86,6 +87,7 @@ public class MapFragment extends Fragment
   private View mapViewContainer;
   private MapOverlay mapOverlay;
   private MapView mapView;
+  private ImageButton myLocationImageButton;
   private TextView messageTextView;
 
   @Override
@@ -100,6 +102,13 @@ public class MapFragment extends Fragment
     mapView.setOnTouchListener(this);
     mapView.setBuiltInZoomControls(true);
     mapView.getOverlays().add(mapOverlay);
+    myLocationImageButton = (ImageButton) mapViewContainer.findViewById(R.id.map_my_location);
+    myLocationImageButton.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        showMyLocation();       
+      }
+    });
     messageTextView = (TextView) mapViewContainer.findViewById(R.id.map_message);
 
     return mapViewContainer;
@@ -150,7 +159,7 @@ public class MapFragment extends Fragment
   /**
    * Shows my location.
    */
-  public void showMyLocation() {
+  private void showMyLocation() {
     updateTrackDataHub();
     keepMyLocationVisible = true;
     zoomToMyLocation = true;