@Override
 public void onDroneEvent(DroneEventsType event, Drone drone) {
   switch (event) {
     case ARMING:
       // Clear the previous flight path when arming.
       if (drone.state.isArmed()) {
         mMapFragment.clearFlightPath();
       }
       break;
     case GPS:
       animateCameraIfNeeded(drone.GPS.getPosition());
       break;
     default:
       break;
   }
   super.onDroneEvent(event, drone);
 }
 @Override
 public void update() {
   super.update();
 }