February 2014
Intermediate to advanced
560 pages
18h 58m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide
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23 Core Data
When deciding between approaches to saving and loading for iOS applications, 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. 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 item 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 stored objects. And if you change any of those objects, you can update ...
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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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