View unresponsive after AVPlayerViewController dismissed - Swift - ios

Question

I have a parent view with a play button that instantiates an AVPlayerViewController object. If the user presses the player's default "Done" button, the player view disappears and the parent view works as expected. However, when playback finishes by reaching the end of the video, the player disappears but the parent view screen is unresponsive to button clicks. I don't understand because both scenarios are using the same callback to dismiss the player view.
Here is the code where I instantiate the AVPlayer and set up the two notifications for how the playback can be completed:
func playVideoLocally() {
// create player
let playerItem = AVPlayerItem(asset: AVAsset(URL: NSURL(string: media.url)!))
player = AVPlayer(playerItem: playerItem)
// create modal view with callback for done button
// This works fine
playerController = CustomAVPlayerViewController()
playerController.player = player
playerController.modalPresentationStyle = UIModalPresentationStyle.OverFullScreen
NSNotificationCenter.defaultCenter().addObserver(self,
selector: "onLocalPlayCompletion:",
name: CustomAVPlayerViewController.viewWillDisappearNotification,
object: nil)
self.presentViewController(playerController, animated: true, completion: nil)
// create player completion callback
// This leads to unresponsive parent view
NSNotificationCenter.defaultCenter().addObserver(self, selector: "onLocalPlayCompletion:",
name: AVPlayerItemDidPlayToEndTimeNotification,
object: playerItem)
// play it
player.play()
}
Here is my onLocalPlayCompletion callback that both scenarios are calling:
func onLocalPlayCompletion(note: NSNotification) -> Void {
playerController.view.removeFromSuperview()
onCompletion()
}

Answer 1

I found the problem. The only reason why pressing "Done" wasn't affecting the parent view is because it's using a default AVPlayer action to dismiss itself. My attempt to dismiss the player from inside onLocalPlayCompletion(),
playerController.view.removeFromSuperview()
isn't correct, and in my case I replaced it with
self.dismissViewControllerAnimated(true, completion: nil)
which does what I want.