[英]One AVPlayer's AVPlayerItemDidPlayToEndTime action executed for all Currently playing videos
问题:在有播放器的 collectionview 单元格中
如果我同时播放两个视频并寻找第一个视频结束然后AVPlayerItemDidPlayToEndTime
被触发两次并且两个视频都重新启动
在集合视图单元格中,我有
override func awakeFromNib() {
NotificationCenter.default.addObserver(forName: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: player?.currentItem, queue: .main, using: {[weak self] (notification) in
if self?.player != nil {
self?.player?.seek(to: kCMTimeZero)
self?.player?.play()
}
})
}
和一个播放视频的播放按钮动作。
在单元格中,我有滑块要查找。
任何帮助,将不胜感激
注册通知时,请确保player
和player?.currentItem
不等于nil
。 对我来说,似乎其中一个是零,你基本上订阅了所有.AVPlayerItemDidPlayToEndTime
通知(因为object
是零)。
为避免这种情况,请在将AVAsset
分配给播放器后立即订阅通知。
斯威夫特 5.1
将项目作为您的对象传递:
// Stored property
let player = AVPlayer(url: videoUrl)
// When you are adding your video layer
let playerLayer = AVPlayerLayer(player: player)
NotificationCenter.default.addObserver(self, selector: #selector(playerDidFinishPlaying), name: .AVPlayerItemDidPlayToEndTime, object: player.currentItem)
// add layer to view
然后,当您收到该通知时,您可以通过以下方式获取currentItem
:
// Grab the item from the notification object and ensure its the same item as the current players item
if let item = notification.object as? AVPlayerItem,
let currentItem = player.currentItem,
item == currentItem {
NotificationCenter.default.removeObserver(self, name: .AVPlayerItemDidPlayToEndTime, object: nil)
// remove player from view or do whatever you need to do here
}
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