35.12 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 as outlined in the following code fragment:

private fun gestureSetup() {

    gLibrary = GestureLibraries.fromRawResource(this,

            R.raw.gesture)

    if (gLibrary?.load() == false) {

        finish()

    }

 

    gOverlay.addOnGesturePerformedListener(this)

}