Wsrtjtyk

Say I have an iOS music library with this playlist structure:

A Folder

|

---> A Playlist

     |

     ---> Song A

I run the following code:

import MediaPlayer



let playlists = MPMediaQuery.playlists().collections! as! [MPMediaPlaylist]

for playlist in playlists {

    let firstItemName = playlist.items.first?.title ?? "none"

    print("playlist: (playlist.name!), first item: "(firstItemName)"")

}

and I get this console output:

playlist: A Playlist, first item: "Song A"

playlist: A Folder, first item: "Song A"

I've looked through all of the MediaPlayer framework documentation, and can't find any way to discover the parent/child relationship between the playlist and the folder through the API (or even to tell that a collection contains other collections). I'd like to present A Playlist only after a user has browsed through A Folder, rather than showing them as siblings (or maybe even filter out A Folder altogether.

Also, the folder and the playlist both have the same class at runtime: MPConcreteMediaPlaylist.