March 2012
Intermediate to advanced
590 pages
22h 48m
English
Content preview from iOS Programming: The Big Nerd Ranch GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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NSKeyedArchiver and NSKeyedUnarchiver
You now have a place to save data on the filesystem and a model object that can be saved to the filesystem. The final two questions we must answer are: how do we kick off the saving and loading processes and when do we do it? To save BNRItems, you will use the class NSKeyedArchiver when the application “exits.”
In BNRItemStore.h, declare a new method.
- (BOOL)saveChanges;
Implement this method in BNRItemStore.m to send the message archiveRootObject:toFile: to the NSKeyedArchiver class.
- (BOOL)saveChanges { // returns success or failure NSString *path = [self itemArchivePath]; ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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