title: AVPlayer view in UIView is missing controls
body: <p>In AVPlayer default video forward slider and play button are not showing if  AVPlayer is added to UIView</p>
  
  <pre><code>NSURL *videourl= [NSURL URLWithString:strUrl];
  AVPlayer *player = [AVPlayer playerWithURL:videourl];         
  
  AVPlayerViewController *playerViewController = [AVPlayerViewController new];            
  
  playerViewController.player = player;
  
  playerViewController.view.frame = ViewAV.bounds;
  
  AVPlayerLayer* playerLayer = [AVPlayerLayer playerLayerWithPlayer:player];
  playerLayer.frame = ViewAV.bounds;
  
  playerLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
  //externalPlaybackVideoGravity
  playerLayer.contentsGravity = AVLayerVideoGravityResizeAspect;
  
  [ViewAV.layer addSublayer:playerLayer];
  [ViewAV addSubview:playerViewController.view];
  
  [playerViewController.player play];
  </code></pre>