some line movement

MapboxAndroidDemo/src/main/java/com/mapbox/mapboxandroiddemo/examples/dds/AnimatedDashLineActivity.java

@@ -37,6 +37,7 @@ public class AnimatedDashLineActivity extends AppCompatActivity implements OnMap
   private MapboxMap mapboxMap;
   private Handler handler;
   private String tag = "AnimatedDashLine";
+  private RefreshDashAndGapRunnable refreshDashAndGapRunnable;
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
@@ -49,6 +50,7 @@ protected void onCreate(Bundle savedInstanceState) {
     // This contains the MapView in XML and needs to be called after the access token is configured.
     setContentView(R.layout.activity_animated_dash_line);
 
+    handler = new Handler();
     mapView = findViewById(R.id.mapView);
     mapView.onCreate(savedInstanceState);
     mapView.getMapAsync(this);
@@ -76,7 +78,7 @@ private void initBikePathLayer() {
       );
       mapboxMap.addLayer(animatedDashBikeLineLayer);
       Log.d(tag, "initBikePathLayer: here");
-      Runnable runnable = new RefreshDashAndGapRunnable(this.mapboxMap, new Handler());
+      Runnable runnable = new RefreshDashAndGapRunnable(this.mapboxMap, handler);
       Log.d(tag, "initBikePathLayer: runnable made");
       handler.postDelayed(runnable, 25);
       Log.d(tag, "initBikePathLayer: postDelayed");
@@ -113,7 +115,6 @@ private static class RefreshDashAndGapRunnable implements Runnable {
       this.handler = handler;
       Log.d(TAG, "RefreshDashAndGapRunnable: finished");
 
-      mapboxMap.getProjection().getProjectedMetersForLatLng()
     }
 
     @Override
@@ -180,6 +181,9 @@ public void onLowMemory() {
   protected void onDestroy() {
     super.onDestroy();
     mapView.onDestroy();
+    handler.removeCallbacks(refreshDashAndGapRunnable);
+    refreshDashAndGapRunnable = null;
+    handler = null;
   }
 
   @Override