onFling and onSCroll methods are not detecting on Android Canvas?

In my sample app, I'm drawing a view using a Canvas and GestureDetector. For开发者_开发百科 the OnGestureListener, all methods are working except onFling and onScroll.

Can anybody sugest me how I can detect the Fling and Scroll gestures on the Canvas.

Thanks

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Make sure your onDown method in your GestureListener class is returning true. OnFling and OnScroll won't fire without the OnDown returning true.