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    <p>ambrose,</p> <p>I modified the demo of the library <a href="http://code.google.com/p/mapview-overlay-manager/" rel="nofollow">mapview-overlay-manager</a>. to get this code running with a double tap gesture:</p> <pre><code>package de.android1.overlaymanager.demo; import android.os.Bundle; import android.widget.Toast; import android.graphics.drawable.Drawable; import android.view.MotionEvent; import com.google.android.maps.MapActivity; import com.google.android.maps.MapView; import com.google.android.maps.MapController; import com.google.android.maps.GeoPoint; import de.android1.overlaymanager.*; public class DemoView extends MapActivity { MapView mapView; MapController mapController; OverlayManager overlayManager; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mapView = (MapView) findViewById(R.id.mapview); mapView.setBuiltInZoomControls(true); mapController = mapView.getController(); overlayManager = new OverlayManager(getApplication(), mapView); } @Override public void onWindowFocusChanged(boolean b) { createOverlayWithListener(); } public void createOverlayWithListener() { //This time we use our own marker final ManagedOverlay managedOverlay = overlayManager.createOverlay("listenerOverlay", getResources().getDrawable(R.drawable.marker)); for (int i = 0; i &lt; 40; i = i + 3) { managedOverlay.createItem(GeoHelper.geopoint[i], "Item" + i); } managedOverlay.setOnOverlayGestureListener(new ManagedOverlayGestureDetector.OnOverlayGestureListener() { public boolean onZoom(ZoomEvent zoom, ManagedOverlay overlay) { return false; } public boolean onDoubleTap(MotionEvent e, ManagedOverlay overlay, GeoPoint point, ManagedOverlayItem item) { Drawable defaultmarker = getResources().getDrawable(R.drawable.marker); ManagedOverlay managedOverlay = overlayManager.createOverlay(defaultmarker); //creating some marker: managedOverlay.createItem(point); //registers the ManagedOverlayer to the MapView overlayManager.populate(); Toast.makeText(getApplicationContext(), "You created a Marker!", Toast.LENGTH_LONG).show(); return true; } public void onLongPress(MotionEvent arg0, ManagedOverlay arg1) { // TODO Auto-generated method stub } public void onLongPressFinished(MotionEvent arg0, ManagedOverlay arg1, GeoPoint arg2, ManagedOverlayItem arg3) { // TODO Auto-generated method stub } public boolean onScrolled(MotionEvent arg0, MotionEvent arg1, float arg2, float arg3, ManagedOverlay arg4) { // TODO Auto-generated method stub return false; } public boolean onSingleTap(MotionEvent arg0, ManagedOverlay arg1, GeoPoint arg2, ManagedOverlayItem arg3) { // TODO Auto-generated method stub return false; } }); overlayManager.populate(); } @Override protected boolean isRouteDisplayed() { return false; } } </code></pre> <p>Hope it helps.</p>
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