对于iO 9.2 :

我已经尝试了MPNowPlayingInfoCenter和MPRemoteCommandCenter中几乎所有设置的组合.

I've tried nearly all combinations of settings in MPNowPlayingInfoCenter and MPRemoteCommandCenter.

要停止更新，搜索栏就足以设置

MPNowPlayingInfoCenter.defaultCenter().nowPlayingInfo?[MPNowPlayingInfoPropertyPlaybackRate] = 0.0
MPNowPlayingInfoCenter.defaultCenter().nowPlayingInfo?[MPNowPlayingInfoPropertyElapsedPlaybackTime] = player?.currentTime

但是要切换暂停按钮，需要在暂停audioPlayback后停用AVAudioSession.

But to toggle pause button it is needed to deactivate AVAudioSession after pausing audioPlayback.

AVAudioSession.sharedInstance().setActive(false)

最后，我的pauseCommand处理程序看起来像:

Finally my pauseCommand handler looks like:

MPRemoteCommandCenter.sharedCommandCenter().pauseCommand.addTargetWithHandler { (e) -> MPRemoteCommandHandlerStatus in
        player?.pause()
        let infoCenter = MPNowPlayingInfoCenter.defaultCenter()
        infoCenter.nowPlayingInfo?[MPNowPlayingInfoPropertyPlaybackRate] = 0.0
        infoCenter.nowPlayingInfo?[MPNowPlayingInfoPropertyElapsedPlaybackTime] = player?.currentTime

        _ = try? AVAudioSession.sharedInstance().setActive(false)

        return MPRemoteCommandHandlerStatus.Success
}

希望，这对某人有帮助.

Hope, this helps somebody.