thanks for your suggestion!
but i don't quite understand your meaning, you mean the flicker of the
button when click on should be implemented by myself with two images
switching, because the default background has been set to transparent?
thanks for your kind!

On Aug 24, 6:25 am, niko20 <[email protected]> wrote:
> Hi, try calling Invalidate() on the View after switching the images.
> You'll have to do all drawing yourself.
>
> -niko
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