Center two buttons horizontally

Question

I try to arrange two buttons (with images on them which work fine) next to each other and to center them horizontally. That\'s what I have so far:

Answer 1

This is what I did, I wrapped a linear layout with a linear layout that has it's gravity set to center_horizontal. Then I set the wrapped linear layout width to the pixel width of the buttons combined. In this example the buttons are 100px wide, so I set the wrapped linear layout to 200px.

Example xml: