LoginController.swift

import AVFoundation

class LoginController: UIViewController {

    var Player: AVPlayer!
    var PlayerLayer: AVPlayerLayer!
  
    // TITLE LABEL
    let titleLabel: UILabel = {
        let title = UILabel()
        title.translatesAutoresizingMaskIntoConstraints = false
        title.text = "Icarus"
        title.textAlignment = .center
        title.textColor = UIColor.white
        title.font = UIFont(name: "AvenirNext-Italic" , size: 50)

        return title
    }()
    
  
    override func viewDidLoad() {
        super.viewDidLoad()
        //setup 
        //setup video background view
        setupVideoBackgroundView()     
    }
  
      
      //setup title label constraints
      fileprivate func setupTitleLabel() {
        titleLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
        titleLabel.bottomAnchor.constraint(equalTo: loginRegisterButton.topAnchor, constant: -300).isActive = true
        titleLabel.widthAnchor.constraint(equalTo: view.widthAnchor, constant: -20).isActive = true
        titleLabel.heightAnchor.constraint(equalToConstant: 50).isActive = true
    }
    
  @objc func handlePlayerVideoEnded(notification: NSNotification) {
        Player.seek(to: kCMTimeZero)
    }
  
  
  fileprivate func setupVideoBackgroundView() {
          let url = Bundle.main.url(forResource: "video", withExtension: "mp4")
          Player = AVPlayer.init(url: url!)

          PlayerLayer =  AVPlayerLayer(player: Player)
          PlayerLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
          PlayerLayer.frame = view.layer.frame

          Player.actionAtItemEnd = AVPlayerActionAtItemEnd.none

          Player.play()

          view.layer.insertSublayer(PlayerLayer, at: 0)

          NotificationCenter.default.addObserver(self, selector: #selector(handlePlayerVideoEnded(notification:)), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: Player.currentItem)
      }
  
  
}