swift - AVFoundation 自定义视频播放器不显示视频？

Question

我正在构建一个自定义视频播放器。为了创建它，我使用播放按钮和 View 。我想在播放器中看到的视频是从 iPhone 的照片中获取的。播放器的问题是我有一个视频的工作 URL，但 View 只是不显示它，实际上这里是它的代码:`

@IBAction func playVideo(_ sender: Any) {
    print("play video")

    let videoURL: NSURL = NSURL(string: uurl.url!)!
    let player = AVPlayer(url: videoURL as URL)
    playerLayerr = AVPlayerLayer(player: player)
    playerLayerr.frame = vlogView.bounds
    self.vlogView!.layer.addSublayer(playerLayerr)
    player.play()

}

有趣的事实是，播放器找到了视频，因为我可以听到视频，但它没有显示。

Answer 1

你可以尝试使用下面的代码吗，它对我有用。

@IBOutlet weak var vlogView: UIView!

         var avPlayer = AVPlayer()
         var avPlayerLayer: AVPlayerLayer!

       @IBAction func playVideo(_ sender: Any) {
    let videoURL =  URL(string: "https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4")
        avPlayerLayer = AVPlayerLayer(player: avPlayer)
        self.avPlayerLayer.frame = self.vlogView.frame
        avPlayerLayer.videoGravity = .resizeAspectFill
        vlogView.layer.insertSublayer(avPlayerLayer, at: 0)
        vlogView.layoutIfNeeded()
        let playerItem = AVPlayerItem(url: videoURL!)
        avPlayer.replaceCurrentItem(with: playerItem)
        avPlayer.play()
        }