How do i save MPMediaItemCollection to NSUSerDefaults?

Question

Anybody know how to do this? The standard method will not work. I want the user to pick a song, and then have it save for the next time they load the app, but i can't seem to get it into NSUserDefaults.

score 1 · Answer 1 · edited Nov 05 '11 at 16:03

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You need to iterate the collection to get the MPMediaItems. MPMediaItem inherits from MPMediaEntity, which has a -valueForProperty: method. If you pass that method the MPMediaItemPropertyPersistentID constant, you'll get back an NSNumber that uniquely identifies the item. This is a value that's persistable across launches.

edited Nov 05 '11 at 16:03

Community

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answered Feb 07 '11 at 03:41

Dave DeLong

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Hey Dave, I'm getting back null when I ask for the MPMediaItemPropertyPersistentID on my MPMediaItemCollection using valueForProperty. I get back "0" if I use valueForKey. Any ideas? – aaronium112 May 12 '11 at 23:58
@MakingScienceFictionFact MPMediaItemPropertyPersistentID is only for MPMediaItems as the name suggests, not MPMediaItemCollections – pnizzle May 20 '13 at 05:39

How do i save MPMediaItemCollection to NSUSerDefaults?

1 Answers1