iPhone获取所有专辑/艺术家 [英] iPhone get all albums/artists

问题描述

你们是否有关于如何从iPod媒体库中检索所有音乐专辑或艺术家的示例代码（或其链接）？

提前致谢使用MPMediaQuery：

  MPMediaQuery * allAlbumsQuery = [MPMediaQuery albumsQuery]; 
 NSArray * allAlbumsArray = [allAlbumsQuery collections]; 
  

allItems数组现在包含MPMediaItemCollections，分组由专辑完成。现在您可以浏览阵列了。

  for（MPMediaItemCollection * collection in allAlbumsArray）{
 MPMediaItem * item = [collection representativeItem]; 
} 
  

does any of you have example code (or a link to it) of how to retrieve all music albums or artist from the iPod media library?

Thanks in advance!

解决方案

Use a MPMediaQuery:

MPMediaQuery *allAlbumsQuery = [MPMediaQuery albumsQuery];
NSArray *allAlbumsArray = [allAlbumsQuery collections];

The allItems array does now contain MPMediaItemCollections, grouping is done by album. Now you can walk through the arrays.

for (MPMediaItemCollection *collection in allAlbumsArray) {
    MPMediaItem *item = [collection representativeItem];
}

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