iOS 14 Play audio from video in background

• Disconnecting player by 'AVPlayerLayer.player = nil' won't catch when appDidEnterBackGround, but it will be catch when appWillResignActive.

• The problem is: when player is playing, user push locked button, phone goes directly to backgroundMode, and app 'AVPlayerLayer.player = nil'. So the player is paused. User have to click play button at lockedScreen to continue playing in background mode.

Code Block 
    func applicationWillResignActive(_ application: UIApplication) {
        let viewController = window?.rootViewController as! ViewController
        viewController.disconnectAVPlayer()
    }

Code Block 
    public func disconnectAVPlayer() {
      playerViewController.player = nil
    }