带有全屏控件的UIView中的Swift 5循环MP4

import AVFoundation
import AVKit

class VideoPlayerView: UIView {
    private var player: AVPlayer?
    private var playerLayer: AVPlayerLayer?
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupPlayer()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupPlayer()
    }
    
    private func setupPlayer() {
        guard let videoURL = Bundle.main.url(forResource: "video", withExtension: "mp4") else {
            return
        }
        
        player = AVPlayer(url: videoURL)
        player?.actionAtItemEnd = .none
        
        playerLayer = AVPlayerLayer(player: player)
        playerLayer?.videoGravity = .resizeAspectFill
        playerLayer?.frame = bounds
        
        layer.addSublayer(playerLayer!)
        
        NotificationCenter.default.addObserver(self, selector: #selector(playerItemDidReachEnd), name: .AVPlayerItemDidPlayToEndTime, object: player?.currentItem)
    }
    
    @objc private func playerItemDidReachEnd() {
        player?.seek(to: CMTime.zero)
        player?.play()
    }
    
    func play() {
        player?.play()
    }
    
    func pause() {
        player?.pause()
    }
    
    func stop() {
        player?.pause()
        player?.seek(to: CMTime.zero)
    }
}