当使用 MPMediaPlaylist 填充 MPMusicPlayerController 时，如何前进到下一个项目并开始播放？

发布于 2024-11-09 18:43:42 字数 362 浏览 0 评论 0原文

这就是我正在做的：

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

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

这会导致播放第一首歌曲，而不是第二首歌曲。这种有点是有道理的，但是很烦人，我希望有一个解决方法。

原文

Here's what I'm doing:

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

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

This results in the first song playing, not the second. This kind of makes sense, but it's annoying and I'm hoping there's a work-around.

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纸短情长 2024-11-16 18:43:42

事实证明，如果您显式设置 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

Well, it turns out that if you explicitly set the nowPlayingItem, you won't have this issue. Here's the modified code:

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

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