title: Animated UIActivityIndicatorView on LaunchScreen.xib
body: <p>With the new xcode one is able to present a .xib named <code>LaunchScreen</code> on launch, which is great. I added a <code>UIActivityIndicator</code> to this very file, but I am not able to animate it. How can I accomplish this? Do I need to add a code file just for this?</p>
  
  <p><strong>What I've tried</strong></p>
  
  <ul>
  <li>Selected 'Animating' in the 'behavior' section of the xib</li>
  </ul>