AVPlayer 播放完退出全屏答案

【问题标题】：AVPlayer exit fullscreen on finish playingAVPlayer 播放完退出全屏
【发布时间】：2014-12-09 13:37:35
【问题描述】：

我正在使用AVPlayer 来显示一些视频流（具有固定长度）。问题是内容完成后，播放器（如果用户已将其设置为全屏）仍保持全屏状态。

有什么方法可以让播放器在播放完内容后立即进入最小化状态？

【问题讨论】：

尝试通过更改视频重力来使用 AVPLayerLayer。检查苹果文档。
stackoverflow.com/questions/35048758/… 的可能重复项

标签： ios objective-c avplayer

【解决方案1】：

为了补充longilong的答案，

您可以在 itemDidFinishPlaying 函数中使用 dismissViewControllerAnimated 关闭视频播放器。您还应该记住在完成后删除您创建的观察者。

-(void)startPlaybackForItemWithURL:(NSURL*)url {

     // First create an AVPlayerItem
     AVPlayerItem* playerItem = [AVPlayerItem playerItemWithURL:url];

     // Subscribe to the AVPlayerItem's DidPlayToEndTime notification.


    [[NSNotificationCenter defaultCenter] 
      addObserver:self 
        selector:@selector(itemDidFinishPlaying:) 
        name:AVPlayerItemDidPlayToEndTimeNotification object:playerItem];

    // Begin playback
    [player play]
} 

-(void)itemDidFinishPlaying:(NSNotification *) notification {
     // Will be called when AVPlayer finishes playing playerItem
     [self dismissViewControllerAnimated:YES completion:Nil]
     [[NSNotificationCenter defaultCenter] 
        removeObserver:self 
        name:AVPlayerItemDidPlayToEndTimeNotification 
        object:Nil];

}

【讨论】：

【解决方案2】：

它适用于#iOS 10 版及更高版本

    # declare your player and 
    var player = AVPlayer()
    var playerVC = AVPlayerViewController()


    let item = AVPlayerItem(url: module.fileURL!)
    DispatchQueue.main.async(execute: {
        self.playerVC.view.backgroundColor = UIColor.clear
        self.player.replaceCurrentItem(with: item)
        try? AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
        self.playerVC.player = self.player

        self.player.play()

        self.playerVC.showsPlaybackControls = true
        if #available(iOS 11.0, *) {
            self.playerVC.exitsFullScreenWhenPlaybackEnds = true
        }
        self.playerVC.view.frame = self.videoView.bounds
        NotificationCenter.default.addObserver(self, selector: #selector(self.playerItemDidReachEnd(notification:)), name: .AVPlayerItemDidPlayToEndTime, object:self.playerVC.player!.currentItem)
        self.videoView.addSubview((self.playerVC.view)!)

})

收听视频文件的结尾

  @objc func playerItemDidReachEnd(notification: Notification?) {
    print("Finishing")
    dismiss(animated: true, completion: nil)
}

【讨论】：

【解决方案3】：

收听视频文件的结尾并在最后关闭/调整大小/重新初始化视图

-(void)startPlaybackForItemWithURL:(NSURL*)url {

 // First create an AVPlayerItem
 AVPlayerItem* playerItem = [AVPlayerItem playerItemWithURL:url];

 // Subscribe to the AVPlayerItem's DidPlayToEndTime notification.
 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(itemDidFinishPlaying:) name:AVPlayerItemDidPlayToEndTimeNotification object:playerItem];

// Begin playback
[player play]

} 

-(void)itemDidFinishPlaying:(NSNotification *) notification {
 // Will be called when AVPlayer finishes playing playerItem

}

【讨论】：