AVPlayer 顶部绘制按钮

我必须在视频顶部绘制标签或按钮relay next previous , leave comment。视频列表有它，一旦用户从表中选择一项，就需要播放，播放器播放完成后，这些按钮或标签应该出现在视频顶部

这是我的代码：

comPlayerControl = AVPlayerViewController()

if let player = comPlayerControl {

    let videoURL: String = "http://cdnapi.kaltura.com/p/11/sp/11/playManifest/entryId/"+selectedSubmission.transcodeRefId+"/format/applehttp/protocol/http/a.m3u8"
    let playerItem = AVPlayerItem(URL: NSURL(string: videoURL)! )
    commmentPlayer = AVPlayer(playerItem: playerItem)
    player.player = commmentPlayer
    player.view.frame = videoCell.frame
    player.view.sizeToFit()

    player.showsPlaybackControls = true
    NSNotificationCenter.defaultCenter().addObserver(
        self, 
        selector: #selector(CommentsTableViewController.playerDidFinishPlaying(_:)),
        name: AVPlayerItemDidPlayToEndTimeNotification, 
        object: playerItem
    )

    comPlayerControl.delegate = self
    videoCell.addSubview(player.view)
}

func playerDidFinishPlaying(note: NSNotification) {
    print("Video Finished")
    let DynamicView=UIView(frame: CGRectMake(100, 200, 100, 100))
    DynamicView.backgroundColor=UIColor.greenColor()
    DynamicView.layer.cornerRadius=25
    DynamicView.layer.borderWidth=2
    DynamicView.layer.zPosition = 1;
    comPlayerControl.view.addSubview(DynamicView)
}

像这样的要求

您正在使用一个AVPlayerViewController，因此没有理由像 Alessandro Ornano 的答案那样访问应用程序的窗口。为什么要重新发明轮子？每一个AVPlayerViewController has a contentOverlayView属性允许您在播放器和控件之间放置视图。

首先，创建一个新的AVPlayerItem并聆听AVPlayerItemDidPlayToEndTimeNotification关于该项目的通知。将项目加载到播放器中并开始播放。

项目完成后，您指定侦听的选择器AVPlayerItemDidPlayToEndTimeNotification将调用通知。在该选择器中，访问contentOverlayView直接并添加您的按钮：

在某些视图控制器或其他对象中：

let playerVC = AVPlayerViewController()

// ...

func setupPlayer {

    let playerItem = AVPlayerItem(...)
    playerVC.player?.replaceCurrentItemWithPlayerItem(playerItem)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(VC.itemFinished), name: AVPlayerItemDidPlayToEndTimeNotification, object: playerItem)
    self.presentViewController(playerVC, animated: true) { 
        self.playerVC.player?.play()
    }
}

func itemFinished() {
    let btn = UIButton(type: .System)
    btn.addTarget(self, action: #selector(VC.buttonTapped), forControlEvents: .TouchUpInside)
    self.playerVC.contentOverlayView?.addSubview(btn)
}

func buttonTapped() {
    print("button was tapped")
    // replay/comment logic here
}

正如评论中所述（以及拒绝编辑），按钮可能无法工作contentOverlayView。有关替代解决方案，请参阅火焰兵的回答.

你也可以子类化AVPlayerViewController并在子类的实例中执行所有操作，但是 Apple警告不要这样做:

不要子类化AVPlayerViewController。不支持重写此类的方法，并且会导致未定义的行为。