swift 中视图控制器的对象隐藏在视频背景后面

Question

我想为我的应用程序创建一个登录页面，在这种情况下，我想使用视频作为登录页面的背景，例如 vine、spotify、uber... 我播放视频没有问题，并在故事板中添加一些按钮和标签到我的视图控制器，在运行应用程序之后我看不到视图控制器的对象我只是看到视频和隐藏在视频背景后面的对象如何解决这个问题, 感谢帮助

这是我播放视频的代码,

 lazy var playerLayer:AVPlayerLayer = {

    let player = AVPlayer(URL:  NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("BWWalkthrough", ofType: "mp4")!))
    player.muted = true
    player.allowsExternalPlayback = false
    player.appliesMediaSelectionCriteriaAutomatically = false
    var error:NSError?

    // This is needed so it would not cut off users audio (if listening to music etc.
    do {
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryAmbient)
    } catch var error1 as NSError {
        error = error1
    } catch {
        fatalError()
    }
    if error != nil {
        print(error)
    }

    var playerLayer = AVPlayerLayer(player: player)
    playerLayer.frame = self.view.frame
    playerLayer.videoGravity = "AVLayerVideoGravityResizeAspectFill"
    playerLayer.backgroundColor = UIColor.blackColor().CGColor
    player.play()
    NSNotificationCenter.defaultCenter().addObserver(self, selector:"playerDidReachEnd", name:AVPlayerItemDidPlayToEndTimeNotification, object:nil)
    return playerLayer
    }()


    override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    self.view.layer.addSublayer(self.playerLayer)


}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

override func viewWillDisappear(animated: Bool) {
    NSNotificationCenter.defaultCenter().removeObserver(self)
}

override func willAnimateRotationToInterfaceOrientation(toInterfaceOrientation: UIInterfaceOrientation, duration: NSTimeInterval) {
    playerLayer.frame = self.view.frame
}
func playerDidReachEnd(){
    self.playerLayer.player!.seekToTime(kCMTimeZero)
    self.playerLayer.player!.play()

}

Answer 1

您需要在故事板加载时创建的所有视图下方添加 playerLayer。正在替换

self.view.layer.addSublayer(self.playerLayer)

与

self.view.layer.insertSublayer(self.playerLayer, atIndex:0)

应该完成这项工作，除非您确实希望在视频层后面有任何视图控制器视图的子视图。

swift 中视图控制器的对象隐藏在视频背景后面

objects of view controller hide behind of video background in swift

video

viewcontroller

ios

swift