28.12 Registering the Event Listener

In order for the activity to receive notification that the user has performed a gesture on the screen, it is necessary to register the OnGesturePerformedListener event listener on the gLayout view, a reference to which can be obtained using the findViewById method as outlined in the following code fragment:

private void gestureSetup() {

    gLibrary =

            GestureLibraries.fromRawResource(this,

                    R.raw.gestures);

    if (!gLibrary.load()) {

        finish();

    }

 

    GestureOverlayView gOverlay = findViewById(R.id.gOverlay);

    gOverlay.addOnGesturePerformedListener(this);

}