You have already asked this and got an answer from a  Android framework 
engineer
https://groups.google.com/d/msg/android-developers/boL9eyiFtWI/7tRSfT8a7-0J

On Wednesday, August 1, 2012 10:01:08 PM UTC+1, bob wrote:
>
> So, I want to make a button that uses OpenGL effects.  I was thinking of 
> deriving from Button.  Then, I thought of deriving from GLSurfaceView.  
> However, I can't derive from both.  Any ideas?
>

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