Which iPhone Framework defines NSPersistentDocument?

Question

I've been working on an iPhone app which uses Core Data and I would like to use NSPersistentDocument if I can. I keep seeing discussions about using NSPersistentDocument in iPhone apps but no mention of which iPhone Framework defines NSPersistentDocument?

Answer 1

It's in the AppKit Framework.

http://developer.apple.com/mac/library/documentation/cocoa/reference/ApplicationKit/Classes/NSPersistentDocument_Class/Reference/Reference.html

Answer 2

NSPersistentDocument is only available for Mac OS X. It's not available in iPhone OS.