How to make button non transparent?

Question

I wrote custom View which draws a circle. Then I put it on relative layout. Also I put standard button there, so that they overlap. And I see that button is transparent. How

Answer 1

I was with the same problem but with ToggleButton. A ugly but fast solution was to position a ImageView right behind the button and change its margins, background and alpha to fit the button. For example, inside a RelativeLayout:

And, in an effort to reduce the visible hack, the extracted style: