Video Runs in View Controller - Swift

Video Runs in View Controller - Swift

import AVFoundation
class WelcomeViewController: UIViewController {
var player: AVPlayer?
    @IBOutlet var view_VideoPlayer: UIView!

override func viewWillAppear(_ animated: Bool) {
         self.loadVideo()
         self.player?.seek(to: kCMTimeZero)
         self.player?.play()
    }

private func loadVideo() {
       do {
            try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryAmbient)
       }
       catch { }
       
        let path = Bundle.main.path(forResource: "welcome_message", ofType:"mp4")
        player = AVPlayer.init(url: NSURL(fileURLWithPath: path!) as URL) //(URL: NSURL(fileURLWithPath: path!) as URL)
       
        DispatchQueue.main.async {
            let playerLayer = AVPlayerLayer(player: self.player)
            playerLayer.frame = CGRect(x: 0, y: 0, width: self.view_VideoPlayer.frame.width, height: self.view_VideoPlayer.frame.height)
            playerLayer.videoGravity = AVLayerVideoGravity.resizeAspect
            playerLayer.zPosition = -1
            NotificationCenter.default.removeObserver(self)
            NotificationCenter.default.addObserver(self, selector: #selector(self.playerItemDidPlayToEndTime), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: self.player?.currentItem)
            self.view_VideoPlayer.layer.addSublayer(playerLayer)
        }
    }

@objc func playerItemDidPlayToEndTime() {
        // load next video or something
        NotificationCenter.default.removeObserver(self)
        DispatchQueue.main.async {
            self.player?.seek(to: kCMTimeZero)
          self.player?.pause()
        }
    }
}