目标C:获取MPMediaItem的“收藏夹"属性 [英] Objective C: Getting MPMediaItem 'Favorite' property

问题描述

我正在查看Apple的文档，但似乎找不到找到MPMediaItem是否为收藏夹"曲目的方法.见下面的截图，带有粉红色的心.

I was looking at Apple's documentation, and I cannot seem to find a way to get whether or not an MPMediaItem is a 'favorite' track or not. See screenshot below, with the pink heart.

如何获得此财产?我知道，由于它是一项新功能，因此它的可用性仅限于iOS 8.4或更高版本.

How can one get this property? I know since it's a new feature, it's availability would be limited to iOS 8.4 or later.

以下是我用来通过音乐选择器从MPMediaItems中获取其他属性的一些代码:

Here's some code I'm using to get other properties from MPMediaItems, via the music picker:

- (void) processMediaItems:(MPMediaItemCollection *)mediaItemCollection
{
            //iterate through selected songs
            if (mediaItemCollection) {
                NSArray *allSelectedSongs = [mediaItemCollection items];

                for(MPMediaItem *song in allSelectedSongs)
                {
                    NSURL *songURL = [song valueForProperty:MPMediaItemPropertyAssetURL];
                    NSNumber *ident = [song valueForProperty:MPMediaEntityPropertyPersistentID];
                    NSString *identString = [BukketHelper convertULLToNSString:ident];
                    NSNumber *isCloud = [song valueForProperty:MPMediaItemPropertyIsCloudItem];
                }

 //do other stuff here
}

有人有想法吗?

推荐答案

您必须使用Apple Music API才能将用户的赞/不喜欢"或设置为像这样的歌曲:

You have to use Apple Music API to get or set users's Like/Dislike to a song like this:

GET https://api.music.apple.com/v1/me/ratings/songs/{id}

来自: Apple文档链接

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