大佬教程收集整理的这篇文章主要介绍了使用Swift禁用MPMoviePlayerController的音频(和中断),大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
override func viewDidAppear(animated: Bool) { let filePath = NSBundle.mainBundle().pathForresource("musicvideo",ofType: "mp4") self.moviePlayerController.contentURL = NSURl.fileURLWithPath(filePath) self.moviePlayerController.play() self.moviePlayerController.repeatMode = .one self.moviePlayerController.view.frame = self.view.bounds self.moviePlayerController.scalingMode = .AspectFill self.moviePlayerController.controlStyle = .None self.moviePlayerController.allowsAirPlay = false self.view.addSubview(self.moviePlayerController.view) }
我已经通过以下方式阅读了关于禁用音频的方法(根本没有工作).请记住,我正在尝试禁用它,以便不通过音乐应用程序,Spotify等中断当前播放的音乐.
// Playing media items with the applicationMusicPlayer will restore the user's Music state after the application quits. // The current volume of playing music,in the range of 0.0 to 1.0. // This property is deprecated -- use MPVolumeView for volume control instead.
1)MPMusicPlayerController.applicationMusicPlayer().volume = 0
2)MPVolumeView甚至没有设置实际音量的设置?这是一个控制.
3)self.moviePlayerController.useApplicationAudioSession = false
这是我最终使用的Swift代码.然后我使用AVPlayerLayer作为子图层添加到视图中,它完美地工作.
感谢OP成功获得Apple技术人员并提供原始Objective-C code.
我现在面临的唯一问题是它:
1)中断当前音乐播放,无论是来自Music,Spotify等.
2)如果我关闭应用程序并再次打开它,视频将停止播放.
override func viewDidAppear(animated: Bool) { let filePath = NSBundle.mainBundle().pathForresource("musicvideo",ofType: "mp4") var asset: AVURLAsset? asset = AVURLAsset.URLAssetWithURL(NSURl.fileURLWithPath(filePath),options: nil) var audioTracks = NSArray() audioTracks = asset!.tracksWithMediaType(AVMediaTypeAudio) // Mute all the audio tracks let allAudioParams = NSMutableArray() for track: AnyObject in audioTracks { // AVAssetTrack let audioInputParams = AVMutableAudiomixinputParameters() audioInputParams.setVolume(0.0,atTime: kCMTimeZero) audioInputParams.trackID = track.trackID allAudioParams.addObject(audioInputParams) } let audioZeroMix = AVMutableAu@L_652_2@mix() audioZeroMix.inputParameters = allAudioParams // Create a player item let playerItem = AVPlayerItem(asset: asset) playerItem.au@L_652_2@mix = audioZeroMix // Create a new Player,and set the player to use the player item // with the muted audio mix let player = AVPlayer.playerWithPlayerItem(playerItem) as AVPlayer player.play() let layer = AVPlayerLayer(player: player) player.actionAtItemEnd = .None layer.frame = self.view.bounds layer.videoGravity = AVLayerVideoGravityResizeAspectFill self.view.layer.addSublayer(layer) }
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