Detects various gestures and events using the supplied Android.Views.MotionEvents. The NoType:android/view/GestureDetector$OnGestureListener;Href=../../../reference/android/view/GestureDetector.OnGestureListener.html callback will notify users when a particular motion event has occurred. This class should only be used with Android.Views.MotionEvents reported via touch (don't use for trackball events). To use this class:

• Create an instance of the GestureDetector for your Android.Views.View
• In the View.OnTouchEvent(MotionEvent) method ensure you call GestureDetector.OnTouchEvent(MotionEvent). The methods defined in your callback will be executed when the events occur.

[Android Documentation]