iPhone sdk, save MPMediaItemCollection?

Question

I have my application displaying a MPMediaPickerController. I would like to save the MediaItem and start it playing again on startup. I think this is doable using the MPMediaQuery. It seems, I should be using the MPMediaItemPropertyPersistentID but I am not sure how to query for it. Any thoughts?

Answer 1

This should work:

MPMediaQuery *query = [MPMediaQuery songsQuery];
MPMediaPropertyPredicate *predicate = [MPMediaPropertyPredicate predicateWithValue:myPersistentID forProperty:MPMediaItemPropertyPersistentID];

[query addFilterPredicate:predicate];
NSArray *songs = [query items];