public void onIndicatorEvent(int event) { switch (event) { case OnIndicatorEventListener.EVENT_ENTER_ZOOM_CONTROL: mIndicatorControlWheel.setVisibility(View.GONE); mZoomControlWheel.setVisibility(View.VISIBLE); mZoomControlWheel.startZoomControl(); break; case OnIndicatorEventListener.EVENT_LEAVE_ZOOM_CONTROL: mZoomControlWheel.setVisibility(View.GONE); mIndicatorControlWheel.setVisibility(View.VISIBLE); break; } }