我有一个场景,当我播放单个音频文件并移动到控制中心它工作正常,但如果回到视图控制器(player.pause() 在那里调用)并回来尝试其他文件它工作相同控制器但在控制中心上一个文件也同时播放。
可能是因为 AVPlayer 对象,我的处理程序多次调用。
MPRemoteCommandCenter.shared().playCommand.addTarget { (playEvent) -> MPRemoteCommandHandlerStatus in
let currentItem = self.player.currentItem
self.player.replaceCurrentItem(with: currentItem)
if self.player.isPlaying {
self.player.pause()
}else{
self.player.play()
}
self.updateInfo()
self.btnAudioPlay.setImage(#imageLiteral(resourceName: "pause"), for: .normal)
return .success
}
MPRemoteCommandCenter.shared().pauseCommand.addTarget { (pauseEvent) -> MPRemoteCommandHandlerStatus in
if self.player.isPlaying {
self.player.pause()
}else{
self.player.play()
}
self.updateInfo()
self.btnAudioPlay.setImage(#imageLiteral(resourceName: "play"), for: .normal)
return .success
}
func updateInfo() {
let image = UIApplication.shared.icon!
let mediaArtwork = MPMediaItemArtwork(boundsSize: image.size) { (size: CGSize) -> UIImage in
return image
}
let nowPlayingInfo: [String: Any] = [
MPMediaItemPropertyAlbumTitle: self.subTilteForAudioPlayer,
MPMediaItemPropertyTitle: self.titleForAudioPlayer,
MPMediaItemPropertyArtwork: mediaArtwork,
MPMediaItemPropertyPlaybackDuration: Float(CMTimeGetSeconds((player.currentItem?.asset.duration)!)) ,
MPNowPlayingInfoPropertyElapsedPlaybackTime: Float(CMTimeGetSeconds(player.currentTime()))
]
MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
}