Maybe the problem is you are not forwarding touch events to the
GestureDetector
I would expect to see something like
@Override
public boolean onTouchEvent(MotionEvent evt) {
return detector.onTouchEvent(evt);
}
On 07/06/10 21:07, zeeshan mirza wrote:
> Here is my own code which i have written up till now. I am trying to
> implement onDoubleTap() zoom in function in my application. My code is
> as follows. LEt me know where is the problem ? and if possible please
> add the correct code for double tap zoom in function.
>
> public class Maps extends MapActivity implements OnGestureListener,
> OnDoubleTapListener{
>
> private GestureDetector detector;
> MapView mapView;
> /** Called when the activity is first created. */
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.main);
> //MapViewer mapViewer = new MapViewer(null, null);
> mapView = (MapView) findViewById(R.id.mapview);
> detector = new GestureDetector(this,this);
> mapView.setBuiltInZoomControls(true);
> }
> @Override
> protected boolean isRouteDisplayed() {
> return false;
> }
>
> public boolean onDoubleTap(MotionEvent e) {
> // TODO Auto-generated method stub
> mapView.getController().zoomIn();
> return false;
> }
> public boolean onDoubleTapEvent(MotionEvent e) {
> // TODO Auto-generated method stub
> return false;
> }
> public boolean onSingleTapConfirmed(MotionEvent e) {
> // TODO Auto-generated method stub
> return false;
> }
> public boolean onDown(MotionEvent e) {
> // TODO Auto-generated method stub
> return false;
> }
> public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
> float velocityY) {
> // TODO Auto-generated method stub
> return false;
> }
> public void onLongPress(MotionEvent e) {
> // TODO Auto-generated method stub
>
> }
> public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
> float distanceY) {
> // TODO Auto-generated method stub
> return false;
> }
> public void onShowPress(MotionEvent e) {
> // TODO Auto-generated method stub
>
> }
> public boolean onSingleTapUp(MotionEvent e) {
> // TODO Auto-generated method stub
> return false;
> }
> }
>
> On Fri, Jul 2, 2010 at 5:26 PM, TreKing <[email protected]
> <mailto:[email protected]>> wrote:
>
> On Wed, Jun 30, 2010 at 2:44 PM, SilentCoders
> <[email protected]
> <mailto:[email protected]>> wrote:
>
> I need a sample code which i can use in my application.
>
>
> No, you need to do your own work and ask specific questions when
> you get stuck.
>
> Start with the Google Maps API documentation, the Hello MapView
> (or whatever it's called) sample on the official documentation
> site. Review handling touch events and start putting something
> together. If you get stuck on something specific, come back, show
> what you've done and ask a specific question someone may be able
> to help you out with.
>
>
>
> -------------------------------------------------------------------------------------------------
> TreKing - Chicago transit tracking app for Android-powered devices
> http://sites.google.com/site/rezmobileapps/treking
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