ios - AVPlayerItemDidPlayToEndTimeNotification 未触发

Question

我正在使用 AVPlayer 从 url 播放视频。 AVPlayerItemDidPlayToEndTimeNotification 未触发。我已经把断点检查了。下面是我的代码片段:-

    @IBAction func playButtonClicked(sender: UIButton) {
    let url:NSURL = NSURL(string: self.currentSelectedContent.link)!
    moviePlayer = AVPlayer(URL: url)
    playerViewController = AVPlayerViewController()
    playerViewController.player = moviePlayer

    self.presentViewController(playerViewController, animated: true) {
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "moviePlayBackFinished", name: AVPlayerItemDidPlayToEndTimeNotification, object: self.moviePlayer)
        self.playerViewController.player?.play()
    }

}

func moviePlayBackFinished() {
    self.playerViewController.dismissViewControllerAnimated(true, completion: nil)
}

Answer 1

根据文档，观察对象必须是 AVPlayerItem 实例，而不是 AVPlayer 本身。尝试将 self.movi​​ePlayer 更改为 self.movi​​ePlayer.currentItem。