Question

我使用AVPlayerViewController，当视频结束时我想要淡出...我可以捕获视频结束事件，我将AVPlayer的代码放在一起工作，但对AVPlayerViewController没有。

self.playerItem = AVPlayerItem(URL: videoURL)
self.player = AVPlayer(playerItem: self.playerItem)
self.playerLayer = AVPlayerLayer(player: self.player)
self.streamPlayer =  AVPlayerViewController()
self.streamPlayer.player = self.player
self.streamPlayer.view.frame = CGRect(x: 128, y: 222, width: 512, height: 256)

此代码也有效，但全屏 - 我不想全屏......

//self.presentViewController(self.streamPlayer, animated: true) {
//   self.streamPlayer.player!.play()
//}

我用这个吗？

self.view.addSubview(self.streamPlayer.view)
self.streamPlayer.player!.play()

事件捕获..

override func viewWillAppear(animated: Bool) {
    NSNotificationCenter.defaultCenter().addObserver(self, selector: "finishedPlaying:", name: AVPlayerItemDidPlayToEndTimeNotification, object: playerItem)
}

事件代码......

func finishedPlaying（myNotification：NSNotification）{

    let fadeOut = CABasicAnimation(keyPath: "opacity")
    fadeOut.fromValue = 1.0
    fadeOut.toValue = 0.0
    fadeOut.duration = 8.0
    fadeOut.delegate = self
    fadeOut.setValue("video", forKey:"fadeOut")
    fadeOut.removedOnCompletion = false
    fadeOut.fillMode = kCAFillModeForwards

此行对AVPlayerViewController没有任何作用/使用AVPlayer它很好地消失了？

    playerLayer.addAnimation(fadeOut, forKey: nil)

这简单地删除了AVPlayerViewController，如果我无法使其工作，则计划B！

    //self.streamPlayer.view.removeFromSuperview()
    print("VIDEO finished")
}

Answer 1

AVPlayerViewController拥有自己的AVPlayerLayer，并且不知道您创建的AVPlayerLayer。这样，行 playerLayer.addAnimation（fadeOut，forKey：nil）没有效果。您应该设置AVPlayerViewController视图的alpha值或设置其动画。对于淡入淡出动画，您可能需要查看+ [UIView animateWithDuration：（...）]方法并调用 self.streamPlayer.view.removeFromSuperview（）在完成处理程序中。

完成时AVPlayerViewController淡出

1 个答案: