大家好，我正在尝试快速制作 MPRemoteCommandCenter，它工作正常，但如果我从应用程序播放 AVPlayer，MPRemoteCommand 播放按钮不会改变，图片会告诉你我的意思，非常抱歉拼写错误，因为英语不是我的第一语言。
这是我的代码
func setupNowPlaying（播放器：AVPlayer？，文章：文章）{
if let player = player{
nowPlayingInfo[MPMediaItemPropertyTitle] = article.title
nowPlayingInfo[MPMediaItemPropertyAlbumTitle] = article.sections[index].title
nowPlayingInfo[MPMediaItemPropertyArtist] = article.name
nowPlayingInfo[MPNowPlayingInfoPropertyElapsedPlaybackTime] = player.currentTime().seconds
nowPlayingInfo[MPMediaItemPropertyPlaybackDuration] = player.currentItem!.asset.duration.seconds
nowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = player.rate
nowPlayingInfo[MPNowPlayingInfoPropertyElapsedPlaybackTime] = CMTimeGetSeconds((player.currentItem?.asset.duration)!)
nowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = 1
MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
}
}
func setupRemoteTransportControls() {
commandCenter.playCommand.addTarget { [unowned self] event in
self.delegate.notificationPlayerHandle()
return .success
}
commandCenter.pauseCommand.addTarget { [unowned self] event in
self.delegate.notificationPlayerHandle()
return .success
}
commandCenter.nextTrackCommand.addTarget { [unowned self] event in
self.getNextSong(article: self.article)
NotificationCenter.default.post(name: NSNotification.Name.init("Hidden"), object: self)
return .success
}
commandCenter.previousTrackCommand.addTarget { [unowned self] event in
self.getPreviousSong(article: self.article)
NotificationCenter.default.post(name: NSNotification.Name.init("Hidden"), object: self)
return .success
}
commandCenter.changePlaybackPositionCommand.addTarget(handler: { (event) in
return MPRemoteCommandHandlerStatus.success
})
}
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
if object is AVPlayer{
switch player!.timeControlStatus {
case .waitingToPlayAtSpecifiedRate , .paused:
nowPlayingInfo[MPNowPlayingInfoPropertyElapsedPlaybackTime] = CMTimeGetSeconds((player?.currentItem?.asset.duration)!)
nowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = 0
MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
break
case .playing:
nowPlayingInfo[MPNowPlayingInfoPropertyElapsedPlaybackTime] = CMTimeGetSeconds((player?.currentItem?.asset.duration)!)
nowPlayingInfo[MPNowPlayingInfoPropertyPlaybackRate] = 1
MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
break
default:
break
}
}
}
func notificationPlayerHandle() {
guard let player = player else {
Toast.showAlert(viewController: self, text: NSLocalizedString("لا يوجد ملف صوتي", comment: ""))
return
}
if player.timeControlStatus == .playing{
player.pause()
playerButton.setImage(UIImage(named: "player-btn-ic"), for: .normal)
progressView.setProgress(value: CGFloat(horizontalSlider!.value), animated: true, duration: CMTimeGetSeconds((player.currentItem?.asset.duration)!), completion: nil)
homePlayerSatute = false
NotificationCenter.default.post(name: NSNotification.Name.init("Hidden"), object: self)
}else if player.timeControlStatus == .paused{
player.play()
playerButton.setImage(UIImage(named: "ic_bg_pause_circle_yellow")!, for: .normal)
self.formatAudioDuration()
self.currentTimeLabel.isHidden = false
progressView.setProgress(value: 1, animated: true, duration: CMTimeGetSeconds((player.currentItem?.asset.duration)!), completion: nil)
homePlayerSatute = true
NotificationCenter.default.post(name: NSNotification.Name.init("Hidden"), object: self)
}
}
}
协议 NotificationPlayerDelegate{
func notificationPlayerHandle()
}