iCloud for Developers (for Jan S Morrison) by Cesare Rocchi

Author:Cesare Rocchi
Language: eng
Format: epub
Tags: Pragmatic Bookshelf
ISBN: 978-1-937785-60-4
Publisher: The Pragmatic Bookshelf, LLC (436473)

​SMGroceryItem​ will no longer extend ​UIDocument​ because it will now be used just to hold data, without directly implementing methods to interact with iCloud. It will become a simple class just to model a single item. Objects in memory cannot be stored directly on disk. Whether you are using iCloud or not, a class that wants to persist data on disk has to implement the ​NSCoding​ protocol, which is the basis of serializing objects on disk. The class stores an item’s name as an instance string variable.

Grocery-chp5/Grocery/SMGroceryItem.h

​ #import <UIKit/UIKit.h>

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