You can use ColorStateList to set the Button background on focus. The post
below has a nice example on using it:
http://groups.google.com/group/android-developers/msg/0714e077e25d63a6

2008/9/24 Shaun <[EMAIL PROTECTED]>

>
>
> I have some buttons without backgrounds ( produced either by
> setBackgroundDrawable(null) or setBackgroundColor(0x00000000) ) --
> that part works fine. However, when the button does not have a
> background it never gets the orange focus highlight and hence is not
> navigable via trackball. It does actually get focus since my focus
> callback is invoked.
>
> My question is: is there some method I can use to cause the button to
> highlight when it's focused or alternatively what's the
> android.R.drawable resource for the orange background highlighting (I
> can do the focus-handling myself with that).
>
> Thanks.
>
> SPT
>
> >
>

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