从iPod上的iTunes访问当前曲目信息

Question

是否有任何适用于iPhone OS的iTunes API,我可以使用它从iTunes访问某些信息(当前曲目等)？

我环顾四周,但我能找到的只是一些AppleScript和COM API.

Answer 1

您需要在Xcode和#import MediaPlayer/MediaPlayer.h中将MediaPlayer.framework添加到目标

然后

就像是

@property (nonatomic, retain) MPMusicPlayerController *musicPlayer;
...
self.musicPlayer = [MPMusicPlayerController iPodMusicPlayer];

然后在viewDidLoad中,您需要注册该事件

// Register for music player notifications
NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter];
[notificationCenter addObserver:self 
                       selector:@selector(handleNowPlayingItemChanged:)
                           name:MPMusicPlayerControllerNowPlayingItemDidChangeNotification 
                         object:self.musicPlayer];

现在实现handleNowPlayingItemChanged

当正在播放的项目发生变化时,您将通过调用此方法获得通知

- (void)handleNowPlayingItemChanged:(id)notification {
    // Ask the music player for the current song.
    MPMediaItem *currentItem = self.musicPlayer.nowPlayingItem;