ios - Apple Music Songs - MPMusicPlayerController 提供错误的播放状态

Question

正如 Apple 在 iOS 9.3 中所说，我们可以 Access Apple Music Library .我正在通过 MPMusicPlayerController 从我的应用程序中播放它。

我得到了错误的播放状态。对于前。如果歌曲继续播放 - 所以它应该返回状态 MPMusicPlaybackStatePlaying 但获取其他枚举值。我的代码是

 if ([[MPMusicPlayerController systemMusicPlayer] playbackState]==MPMusicPlaybackStatePlaying)
            {
            }
            else
            {
 NSLog(@"playbackState %ld",(long)[[MPMusicPlayerController systemMusicPlayer] playbackState]);
             }

正如苹果所说 here我们有以下可能的值 -

Values for the playbackState property.
Declaration

Objective-C

enum {
   MPMusicPlaybackStateStopped,
   MPMusicPlaybackStatePlaying,
   MPMusicPlaybackStatePaused,
   MPMusicPlaybackStateInterrupted,
   MPMusicPlaybackStateSeekingForward,
   MPMusicPlaybackStateSeekingBackward 
};
typedef NSInteger MPMusicPlaybackState;

如何获得当前播放歌曲的正确状态。任何想法，如果我弄错了什么，请告诉我。谢谢

Answer 1

这很疯狂，但这个有效:

_ = systemMusicPlayer.currentPlaybackRate        
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
    print(self?.systemMusicPlayer.playbackState)
}