使用MPMediaPlaylist填充MPMusicPlayerController时，如何前进到下一个项目，并在那里开始播放？

Question

这就是我正在做的事情：

self.iPodController = [MPMusicPlayerController applicationMusicPlayer];
MPMediaPlaylist* playlist = [self lookupSavedPlaylist];
[self.iPodController setQueueWithItemCollection:playlist];

[self.iPodController skipToNextItem];
[self.iPodController play];

这导致第一首歌曲播放，而不是第二首歌曲。这种类是有道理的，但它很烦人，我希望有一个解决办法。

Answer 1

嗯，事实证明，如果您明确设置nowPlayingItem，则不会出现此问题。这是修改后的代码：

self.iPodController = [MPMusicPlayerController applicationMusicPlayer];
MPMediaPlaylist* playlist = [self lookupSavedPlaylist];
[self.iPodController setQueueWithItemCollection:playlist];
self.iPodController.nowPlayingItem = [playlist.items objectAtIndex:0]; // explicitly set to track 1 to start

[self.iPodController skipToNextItem]; // will now skip to track 2!
[self.iPodController play]; // will now play track 2