title: How do I redraw multiple child views at the same time?
body: <p>I have an Android game with a <code>GridLayout</code> that contains a custom <code>ImageView</code> in each of its cells. At certain points in this game I want to redraw several of these <code>ImageView</code>s at the same time (not sequentially).</p>
  
  <p>If I call invalidate() on the parent ViewGroup, the <code>GridLayout</code>, will all the child views be redrawn at the same time? Is there a different or better way to redraw several child views at the same time?</p>