How to detect when someone cancels AVPLayer? - swift

Question

How can I detect when someone cancels AVPlayer?
Here's my code to show the video. How can I detect when someone exits the video screen?
// Create a new AVPlayerViewController and pass it a reference to the player.
let controller = AVPlayerViewController()
controller.player = player
NotificationCenter.default.addObserver(self, selector: #selector(videoDidEnded), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: player.currentItem)
NotificationCenter.default.addObserver(self, selector: #selector(videoDidCancel), name: NSNotification.Name.kAVPlayerViewControllerDismissingNotification, object: player.currentItem)
// Modally present the player and call the player's play() method when complete.
present(controller, animated: true) {
Amplitude.instance().logEvent("ac_content_video_start", withEventProperties: [
"Name": self.book.title,
"Length": 10,
"No_upvotes": self.book.starCount,
"Category": self.book.categories as Any
])
player.play()
}

Answer 1

Unfortunately that is not possible and there is no such event.
What you could do is to associate a UITapGestureRecognizer with the view of the AVPlayerViewController where you can capture the stop/pause/cancel events of your AVPlayerViewController. Then in your selector you can handle the pause/stop/cancel.

Answer 2

There is no specific delegate or notification that I know of, however I could offer this workaround.
1. Conformance to the UIViewControllerTransitioningDelegate
Make the UIViewController that presents the AVPlayerViewController conform to the transitioning delegate
class YourVC: UIViewController, UIViewControllerTransitioningDelegate
2. Add a var to keep track of video status
// Again, in the VC that presents the AVPlayerViewController
var hasMovieFinished = false
3. AVPlayerController SetUp
Make the view controller presenting the AVPlayerController the transitioningDelegate of the AVPlayerController
let controller = AVPlayerViewController()
// Add this
controller.transitioningDelegate = self
controller.player = player
4. Add this to your movie finish notification handler
This way you know, the movie finished
#objc
func videoDidEnded() {
print("Video finished")
hasMovieFinished = true
// up to you if you dismiss the controller or not
dismiss(animated: true) {
// do what you want
}
}
5. 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
if !hasMovieFinished
{
print("Movie was cancelled")
// DO WHAT YOU WANT, MOVIE WAS CANCELLED
}
return nil
}