Nspersistentdocument
NSPersistentDocument is a subclass of NSDocument intended to work with Core Data.
Uimanageddocument
UIManagedDocument is a concrete subclass of UIDocument that integrates with Core Data
Others
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Unfortunately the sample apps are not based on uimanageddocument or nspersistentdocument but if you look at the way they handle backup files you could probably use that approach to create a document based app with less hassle than using uimanageddocument from question How do I detect changes to a Core Data document in iCloud on OS X before the document gets reloaded? |