AVPlayer 无法正常工作 - Swift

Posted 2023-02-25

【中文标题】AVPlayer 无法正常工作 - Swift

【英文标题】：AVPlayer not working properly - Swift

【发布时间】：2016-07-15 16:07:13

【问题描述】：

//首先我的英语很差，对不起... 我正在实现 AVPlayer 我的应用程序。播放器工作正常，但如果我多次播放其他视频，播放器无法正常工作，只有this screen 看起来。

这是我的代码

let player:AVPlayer?

override func viewDidLoad() 
    super.viewDidLoad()

    let videoFile = object?.objectForKey("video") as? PFFile

    videoFile?.getFilePathInBackgroundWithBlock( (filePath, error) in
        if error == nil 
            let videoURL = NSURL(fileURLWithPath: filePath!)

            self.player = AVPlayer(URL: videoURL)
            let playerController = AVPlayerViewController()
            playerController.player = self.player

            playerController.showsPlaybackControls = false
            playerController.videoGravity = AVLayerVideoGravityResizeAspectFill

            playerController.view.frame = self.videoView.bounds
            self.videoView.addSubview(playerController.view)
            self.addChildViewController(playerController)

            self.player!.play()

         else 
            print(error)
        
    )

【参考方案1】：

我不明白您获取视频对象的方式，但您可以尝试以下代码。它工作正常。

var player:AVPlayer! // this shouldn't be let.

override func viewDidLoad() 
    super.viewDidLoad()

    let query = PFQuery(className:"TestClass") //your classname in parse. Change it with your clas name
    query.getObjectInBackgroundWithId("SALe4gX2nk")  // get the video file with id. Change it with your id.
    (object: PFObject?, error: NSError?) -> Void in
        let videoFile = object?.objectForKey("video") as? PFFile
        let url = NSURL(string: (videoFile?.url)!)

        self.player = AVPlayer(URL: url!)
        let playerController = AVPlayerViewController()
        playerController.player = self.player

        playerController.showsPlaybackControls = false
        playerController.videoGravity = AVLayerVideoGravityResizeAspectFill

        playerController.view.frame = self.view.bounds
        self.view.addSubview(playerController.view)
        self.addChildViewController(playerController)

        self.player!.play()

    

【讨论】：

我正在获取 PFQueryTableViewController。此控制器详细视图控制器。问题不在于获取。 AVPlayer 已经可以正常工作并播放视频了。我的问题是我多次播放视频，一段时间后 AVPlayer 无法正常工作。

检查this