Question

I am trying to implement a GestureOverlay and Listener in my application so it can perform actions based on input gestures. I have tried many different things but I cannot figure out what is wrong with my code. Any guidance would be much appreciated!

From onCreate method:

GestureOverlayView gestures = (GestureOverlayView) findViewById(R.id.gesturesoverlay);
gestures.addOnGesturePerformedListener(this);

From main.xml if it is of any help:

<android.gesture.GestureOverlayView
  android:id="@+id/gesturesoverlay"
  android:layout_width="fill_parent" 
  android:layout_height="0dip"
  android:layout_weight="1.0" 
  android:gestureColor="#FF33B5E5"
  android:uncertainGestureColor="#FF33B5E5" />

The error I get is from the gestures.addOnGesturePerformedListener(this); line. The error is

The method addOnGesturePerformedListener(GestureOverlayView.OnGesturePerformedListener) in the type GestureOverlayView is not applicable for the arguments (GestureLauncher).

Thanks again.

Answer 1

The error is saying that the argument to addOnGesturePerformedListener() needs to be an object that implements OnGesturePerformedListener. You are passing this which is evidently a GestureLauncher but does not implement OnGesturePerformedListener.