Android OnGestureListener Help

I have a small class file used as part of a larger android program see attached that implements OnGestureLitener. The code comiles but the Gestures do not appear to work. I need someone to fix the code. The seperable runnable thread and handler are working fine so you dont need to do anything with that. You can comment out the code inside them, so that you don't need the other classes. ## Deliverables The code must run on Android 1.6