June 2011
Intermediate to advanced
590 pages
19h 31m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, Second EditionBecome 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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17Core Data
There are a few different approaches to saving and loading for iOS applications. When deciding between them, the first question is typically “Local or remote?” If you want to save data to a remote server, this is typically done with a web service. Web services are covered in Chapter 25, so let’s assume that you want to store data locally. The next question is typically “Archiving or Core Data?”
At the moment, Homepwner uses keyed archiving to save possession data to the filesystem. The biggest drawback to archiving is its all-or-nothing nature: to access anything in the archive, you must unarchive the entire file; to save any changes, you must rewrite the entire file. Core Data, on the other hand, can fetch a small subset of the ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.