When loading an existing document开发者_如何学JAVA using NSPersistentDocument, as part of initialization I\'d like to prepare some content:
I have an Mac Application using a NSPersistentDocument. I want to get notified when Objects are deleted to save this information using Core Data. So I\'m listening for NSManagedObjectContextObjectsDid
I have some calculated values in the core data database that I need to update just before saving. Basically I\'m numbering some entities in order to ease up the navigation between them.
I want to set some properties of the window of my NSPersistentDocument object. How do I get access to it?开发者_开发知识库
I\'ve an application based on NSPersistentDocument, it has three different views based on diffrent conditions and data and every works fine.
I have a开发者_运维问答 CoreData / NSPersistentDoc app. It works fine. I added a new entity to the MOM, and updated the version.
Recently I added a new entity into my Core Data model, so I cr开发者_C百科eated a new version for the model and a mapping model for it. However, now my NSPersistentDocument crashes with no obvious rea
Ok so I am taking a screen shot of a photo I took with my camera on the iPhone. I put the camera photo into UIImageView and grab a screenshot of it using this sort of code (this is from http://www.sky
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