title: Android: start the app with animation
body: <p>I have an app that is launched by clicking a link in a webpage.</p>
  
  <p>No problem, that works fine. </p>
  
  <p>However, the app main screen just sort of bumps away the browser. I'd like to add a little animation. Maybe it can fade-in or something. I have done tween animations on ImageView but not sure how to do it for the full layout screen. Any ideas?</p>