Reputation: 1651
I need to toast something on double tap the screen. I tried the following code. But it's not working. No toast is coming on double tapping. What is wrong with these code?
package a.b.c;
import android.app.Activity;
import android.os.Bundle;
import android.view.GestureDetector.OnDoubleTapListener;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.widget.Toast;
public class SampleActivity extends Activity implements OnDoubleTapListener,OnGestureListener
{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
public boolean onDoubleTap(MotionEvent e) {
if(e.getAction()==1)
{
Toast.makeText(getBaseContext(), "onDoubleTap", Toast.LENGTH_LONG).show();
}
return true;
}
@Override
public boolean onDoubleTapEvent(MotionEvent e) {
if(e.getAction()==1)
{
Toast.makeText(getBaseContext(), "onDoubleTapEvent", Toast.LENGTH_LONG).show();
}
return true;
}
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
if(e.getAction()==1)
{
Toast.makeText(getBaseContext(), "onSingleTapConfirmed", Toast.LENGTH_LONG).show();
}
return true;
}
I also implemented the OnGestureListener methodes. But have no effect. Please help.
Upvotes: 4
Views: 5913
Reputation: 2889
Where do you set the doubletap listener? Try adding this to your oncreate and see if it fixes the issue
GestureDetector detector = new GestureDetector(this, this);
Upvotes: 3