ios – 检测AVPlayerViewController是否正在播放视频或缓冲并向播放器添加叠加层

2023年7月2日 377次阅读

>我必须检测视频是处于播放还是缓冲模式.我正在从URL加载视频.我已经尝试了下面的代码,我可以在视频开始播放后跟踪,但不能在它处于缓冲状态时跟踪.

>另外,我想在播放器中添加叠加视图.我试图在AVPlayer中添加叠加层,但在全屏模式下叠加层消失.

需要一些建议.提前致谢.以下是我的代码：

    let playerAV = AVPlayerViewController()
    var player = AVPlayer()
    player = AVPlayer(URL: url)
    print(url)
    playerAV.player = player
    playerAV.view.frame = CGRectMake(0, 0,  self.videoView.frame.width,  self.videoView.frame.height)
    self.addChildViewController(playerAV)
    self.videoView.addSubview(playerAV.view)
    playerAV.didMoveToParentViewController(self)
    playerAV.player?.play()
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(ChannelDetailViewController.notificationObserver(_:)), name:AVPlayerItemDidPlayToEndTimeNotification , object: player.currentItem)
        _ = UIDevice.beginGeneratingDeviceOrientationNotifications
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(ChannelDetailViewController.deviceOrientationDidChange(_:)) , name:
        UIDeviceOrientationDidChangeNotification, object: nil)
    player.addObserver(self, forKeyPath: "rate", options: NSKeyValueObservingOptions.New, context: nil)
  player.addPeriodicTimeObserverForInterval(CMTime(value: 1, timescale: 3), queue: dispatch_get_main_queue()) { [weak self] time in
    self?.handlePlayerStatus(time)
  }

  func handlePlayerStatus(time: CMTime) {
     if player.status == .ReadyToPlay {
     // buffering is finished, the player is ready to play
     print("playing")
  }
  if player.status == .Unknown{
    print("Buffering")
  }
 }

 override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) {
    if keyPath == "rate" {
        if let rate = change?[NSKeyValueChangeNewKey] as? Float {
          if player.currentItem!.status == AVPlayerItemStatus.ReadyToPlay{
            if rate != 0 && player.error == nil {

              print("normal playback")
            }
            else{
              print("playback stopped")
            }

          }else if player.currentItem?.status == AVPlayerItemStatus.Unknown{
            print("test")
          }
        }
    }
    print("you are here")
}

check here for project

最佳答案 >检查我的答案：
https://stackoverflow.com/a/38867386/5109911,这将告诉你如何检查播放器是否正在加载缓冲区,检查它是否已准备好播放你必须同时检查player.currentItem.status和player.status

>要向AVPlayer添加叠加层,我建议在AVPlayer图层上方使用UIView.

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