Untitled

how to make to react zoom in-out on the mapview
ZoomButtonsController zoomController =
     mapView.getZoomButtonsController();
     zoomController.setOnZoomListener(new OnZoomListener() {
     public void onZoom(boolean zoomIn) {
     if(zoomIn)
     {
     Log.v("update", "zoomIn "+mapView.getZoomLevel());
     mapcontroller.zoomIn();
     loadStatus();
     }
     else
     {
     Log.v("update", "zoomout "+mapView.getZoomLevel());
     mapcontroller.zoomOut();
     }
     }
     public void onVisibilityChanged(boolean visible) {
     // if(!visible)
     }
     });