I have AVPlayer with AVPictureInPictureController. Play video in app and picture In Picture works except one situation. Issue is: I pause video in application and during switch to background is not PiP activate. What do I wrong? import UIKit import AVKit import AVFoundation class ViewControllerSec: UIViewController,AVPictureInPictureControllerDelegate { var pipPlayer: AVPlayer! var avCanvas : UIView! var pipCanvas: AVPlayerLayer? var pipController: AVPictureInPictureController! var mainViewControler : UIViewController! var playerItem : AVPlayerItem! var videoAvasset : AVAsset! public func link(to parentViewController : UIViewController) { mainViewControler = parentViewController setup() } @objc func appWillResignActiveNotification(application: UIApplication) { guard let pipController = pipController else { print("PiP not supported") return } print("PIP isSuspend: \(pipController.isPictureInPictureSuspended)") print("PIP isPossible: \(pipController.isPictureInPicturePossible)" if playerItem.status == .readyToPlay { if pipPlayer.rate == 0 { pipPlayer.play() } pipController.startPictureInPicture(). ---> Errorin log: Failed to start picture in picture. } else { print("Player not ready for PiP.") } } private func setupAudio() { do { let session = AVAudioSession.sharedInstance() try session.setCategory(.playback, mode: .moviePlayback) try session.setActive(true) } catch { print("Audio session setup failed: \(error.localizedDescription)") } } @objc func playerItemDidFailToPlayToEnd(_ notification: Notification) { if let error = notification.userInfo?[AVPlayerItemFailedToPlayToEndTimeErrorKey] as? Error { print("Failed to play to end: \(error.localizedDescription)") } } func setup() { setupAudio() guard let videoURL = URL(string: "https://demo.unified-streaming.com/k8s/features/stable/video/tears-of-steel/tears-of-steel.mp4/.m3u8") else { return } videoAvasset = AVAsset(url: videoURL) playerItem = AVPlayerItem(asset: videoAvasset) addPlayerObservers() pipPlayer = AVPlayer(playerItem: playerItem) avCanvas = UIView(frame: view.bounds) pipCanvas = AVPlayerLayer(player: pipPlayer) guard let pipCanvas else { return } pipCanvas.frame = avCanvas.bounds //pipCanvas.videoGravity = .resizeAspectFill mainViewControler.view.addSubview(avCanvas) avCanvas.layer.addSublayer(pipCanvas) if AVPictureInPictureController.isPictureInPictureSupported() { pipController = AVPictureInPictureController(playerLayer: pipCanvas) pipController?.delegate = self pipController?.canStartPictureInPictureAutomaticallyFromInline = true } let playButton = UIButton(frame: CGRect(x: 20, y: 50, width: 100, height: 50)) playButton.setTitle("Play", for: .normal) playButton.backgroundColor = .blue playButton.addTarget(self, action: #selector(playTapped), for: .touchUpInside) mainViewControler.view.addSubview(playButton) let pauseButton = UIButton(frame: CGRect(x: 140, y: 50, width: 100, height: 50)) pauseButton.setTitle("Pause", for: .normal) pauseButton.backgroundColor = .red pauseButton.addTarget(self, action: #selector(pauseTapped), for: .touchUpInside) mainViewControler.view.addSubview(pauseButton) let pipButton = UIButton(frame: CGRect(x: 260, y: 50, width: 150, height: 50)) pipButton.setTitle("Start PiP", for: .normal) pipButton.backgroundColor = .green pipButton.addTarget(self, action: #selector(startPictureInPicture), for: .touchUpInside) mainViewControler.view.addSubview(pipButton) print("Error:\(String(describing: pipPlayer.error?.localizedDescription))") NotificationCenter.default.addObserver(forName: UIApplication.didEnterBackgroundNotification, object: nil, queue: nil) { [weak self] _ in guard let self = self else { return } if self.pipPlayer.rate == 0 { self.pipPlayer.play() pipController?.startPictureInPicture() } } func addPlayerObservers() { playerItem?.addObserver(self, forKeyPath: "status", options: [.old, .new], context: nil) NotificationCenter.default.addObserver(self, selector: #selector(playerDidFinishPlaying(_:)), name: .AVPlayerItemDidPlayToEndTime, object: playerItem) } override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) { if keyPath == "status" { if let statusNumber = change?[.newKey] as? NSNumber { let status = AVPlayer.Status(rawValue: statusNumber.intValue)! switch status { case .readyToPlay: print("Player is ready to play") case .failed: print("Player failed: \(String(describing: playerItem?.error))") case .unknown: print("Player status is unknown") @unknown default: fatalError() } } } } @objc func playerDidFinishPlaying(_ notification: Notification) { print("Video finished playing.") } deinit { playerItem?.removeObserver(self, forKeyPath: "status") NotificationCenter.default.removeObserver(self) } @objc func playTapped() { pipPlayer.play() } @objc func pauseTapped() { pipPlayer.pause() } @objc func startPictureInPicture() { if let pipController = pipController, !pipController.isPictureInPictureActive { pipController.startPictureInPicture() } } @objc func stopPictureInPicture() { if let pipController = pipController, pipController.isPictureInPictureActive { pipController.stopPictureInPicture() } } func pictureInPictureController(_ pictureInPictureController: AVPictureInPictureController, failedToStartPictureInPictureWithError error: Error) { print("Failed to start PiP: \(error.localizedDescription)") if let underlyingError = (error as NSError).userInfo[NSUnderlyingErrorKey] { print("Underlying error: \(underlyingError)") } } }