Android: How to detect when a scroll has ended

Question

I am using the onScroll method of GestureDetector.SimpleOnGestureListener to scroll a large bitmap on a canvas. When the scroll has ended I want to redraw the bitmap in case

Answer 1

If you're using SimpleGestureDetector to handle your scroll events, you can do this

fun handleTouchEvents(event: MotionEvent): Boolean {
    if(event.action == ACTION_UP) yourListener.onScrollEnd()
    return gestureDetector.onTouchEvent(event)
}