title: Set Alpha/Opacity of Layout
body: <p>Is it possible to set and get the Alpha/Opacity of a Layout and all it's child views? I'm not talking about the background. Say a collection of Video Controls like Play, Pause and Progressbar in a Relative Layout.</p>
  
  <p>I can use animation to fade in and out but wanted to know if there was a direct method I could use.</p>