Simple way of making long tap event work in MapView. ShowMapActivity class

ShowMapActivity.java

public class ShowMapActivity extends MapActivity {
 
 
 
...
 
private long touchActionDownStartTime;
 
private float histX;
 
private float histY;
 
...
 
 
 
public void onCreate(Bundle bundle) {
 
super.onCreate(bundle);
 
setContentView(R.layout.maps_test); // bind the layout to the activity
 
 
 
mapView = (MapView) findViewById(R.id.mapview);
 
mapView.setBuiltInZoomControls(true);
 
...
 
}
 
 
 
@Override
 
public boolean dispatchTouchEvent(MotionEvent ev) {
 
 
 
int actionType = ev.getAction();
 
/**
 
* touchActionDownStartTime > 0 --- check whether user released his finger
 
* ev.getEventTime() - touchActionDownStartTime > 500 --- check whether user
 
* pressed the screen as long as we need for registering of the "long tap" event
 
*/
 
if (touchActionDownStartTime > 0 &&
 
ev.getEventTime() - touchActionDownStartTime > 500) {
 
Toast.makeText(this, "Long push", 1000).show();
 
/**
 
* Reset start time to cancel subsequent event handling until user releases
 
* screen with his finger
 
*/
 
touchActionDownStartTime = 0;
 
 
 
// "On long tap" routines goes here!
 
 
 
}
 
switch (actionType) {
 
case MotionEvent.ACTION_DOWN:
 
// Setting the start of long tapping when user presses the screen
 
touchActionDownStartTime = ev.getEventTime();
 
histX = ev.getX(ev.getPointerCount()-1);
 
histY = ev.getY(ev.getPointerCount()-1);
 
break;
 
case MotionEvent.ACTION_UP:
 
/**
 
* Reset start time - this may stop event handling if user
 
* were pressing the screen not as long as we need for
 
* registering "long tap" event
 
*/
 
touchActionDownStartTime = 0;
 
break;
 
case MotionEvent.ACTION_MOVE:
 
 
 
float histXnew = ev.getX(ev.getPointerCount()-1);
 
float histYnew = ev.getY(ev.getPointerCount()-1);
 
 
 
if (histXnew-histX > 5 || histYnew-histY > 5)
 
touchActionDownStartTime = 0;
 
 
 
break;
 
}
 
 
 
return super.dispatchTouchEvent(ev);
 
}
 
}