how to implement Over Scroll effect in ViewFlipper
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I use ViewFlipper to display some views, displayed from left to right, item number 0,1,2,3... If the current item is the first item, I don't allow it turn to left, and for the last item, I don't allow it turn to right, so I don't call showPrevious/showNext on these two scenarios, however I think this is not friendly, so I want to add some effect just like Over Scroll to it, could any one help me on this?
The only method I can think out is play some bounce animation to notify user that the view can't be flipped any more. Any other good ways?

Thanks