Over Scroll effect of Android while scrolling.


Hello All…
I have scrollable grid…i am using CCScrollView class for giving scrollable effect…For iphone i am giving Rubber Band Effect which is working properly.
I want to run my application in android also.In android i notice when we overscroll list or scrollview it is giving some color gradient at edges of scroll view that is called overscroll effect.In android,we can get this effect if we override following fuction:
setOverscrollHeader (Drawable header)
setOverscrollFooter (Drawable header)

Please suggest me how we get this effect with cocos2dx in CCScrollView class