title: Centering elements in space remaining after placing another element
body: <p>In my <code>android</code> app, I have a toolbar with an <code>ImageView</code> and two spinners. I would like the <code>ImageView</code> to appear flush with the left side of the screen, and the two <code>spinners</code> to be evenly spaced, horizontally centered in the remaining space (not horizontally centered on the screen, but horizontally centered in the space remaining after the <code>ImageView</code> is placed. What's the best way to achieve this? </p>