title: Swift AVPlayer has no done button
body: <p>Using iOS 8.4, I have created an AVPlayerViewController with and AVPlayer.  The video controls appear as expected and the video plays, but there is no "Done" button and xCode crashes whenever I try to lay one on the ViewController at the top of the view.  An example I saw:
  <a href="http://www.techotopia.com/index.php/IOS_8_Video_Playback_using_AVPlayer_and_AVPlayerViewController" rel="noreferrer">Video Playback</a>
  clearly shows a "Done" button on the upper left of the screen.  </p>
  
  <p>Do AVPlayerViewController and AVPlayer support a "Done" button? Is it possible to add one?</p>
  
  <p>The existing answer suggested by the comment included Objective-C code.</p>