Detect when AVPlayerViewController is closed

Question

From a table view cell, I play video from a url:

        let player = AVPlayer(url: URL(string: "https://bitdash-a.akamaihd.net/content/MI201109210084_1/m3u8s/f08e80da-bf1d-4e3d-8899-f0f6155f6efa.m3u8")!)
        player.automaticallyWaitsToMinimizeStalling = false

        let vc = AVPlayerViewController()
        vc.player = player

        // Loop video
        NotificationCenter.default.addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: player.currentItem, queue: .main) { [weak self] _ in
            player.seek(to: CMTime.zero)
            player.play()
        }

        self.parentViewController.present(vc, animated: true, completion: {
            if #available(iOS 10.0, *) {
                vc.player?.playImmediately(atRate: 1.0)
            } else {
                vc.player?.play()
            }
        })

How can I detect when the AVPlayerViewController is closed/dismissed? I want to do something when it's closed.

Answer 1

There is no specific delegate or notification that I know of for when the AVPlayerViewController is dismissed.

However, you could try the following steps since you present the AVPlayerViewController

1. Conformance to the UIViewControllerTransitioningDelegate

Make the UIViewController that presents the AVPlayerViewController conform to the transitioning delegate

class YourVC: UIViewController, UIViewControllerTransitioningDelegate

2. AVPlayerController SetUp

Make the view controller presenting the AVPlayerController the transitioningDelegate of the AVPlayerController

let vc = AVPlayerViewController()

// Add this
vc.transitioningDelegate = self

vc.player = player

3. Finally, implement the transition delegate function

// MARK: UIViewControllerTransitioningDelegate
// Gets called when a modal was dismissed
func animationController(forDismissed dismissed: UIViewController)
-> UIViewControllerAnimatedTransitioning?
{
    // The dismissal was before the movie ended
    print("AVPlayerController dismissed")
    return nil
}

Give this a go and see if this helps