ios - How to save MPMediaItemCollection to database? -


i'm making application allows user make playlist , edit playlist , using mpmusicplayercontroller. able make playlist , retrieve can played. don't know how can store playlist(mpmediaitemcollection) core data or database, user have many playlist.

i've tried play ipod playlist retrieved saved persistentid list , realize it's can save 1 playlist. cmiiw

so how can save many playlist in core data or nsuserdefaults ?

create mutable array add playlist in array via addobject

nsuserdefaults.standarduserdefaults().setobject(playlistarray, forkey: "playlists") nsuserdefaults.standarduserdefaults().synchronize()

don't forget fetch data in array nsuserdefaults before next playlist creation.


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