AVPlayerViewController did exit full screen

Question

I'm trying to know when an AVPlayerViewController was dismissed or exited full screen in order to change its parent view controller layout but I'm having no luck finding a delegate method that tells me when it happens.

I've tried adding an observer on the view controller like so:

player = AVPlayer(URL: NSURL(fileURLWithPath: videoPath))
playerController = AVPlayerViewController()
playerController?.delegate = self
playerController!.player = player

playerController?.contentOverlayView?.addObserver(self, forKeyPath: "bounds", options: NSKeyValueObservingOptions.New, context: nil)
addChildViewController(playerController!)

but it's never triggered.

I just want to know when playerControlleris being dismissed or user exited full screen.

Answer 1

您可以在父视图控制器的viewWillAppear:方法中处理它。

func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)

    if let playerController = playerController {
        // handle exit of playerController here...
    }
}

Answer 2

如果您希望跟踪用户退出全屏或视频状态，您可以使用MPMoviePlayerController。