December 2016
Intermediate to advanced
416 pages
15h 21m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, 6th Edition
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16 Saving, Loading, and Application States
There are many ways to save and load data in an iOS application. This chapter will take you through some of the most common mechanisms as well as the concepts you need for writing to or reading from the filesystem in iOS. Along the way, you will be updating Homepwner so that its data persists between runs (Figure 16.1).
Figure 16.1 Homepwner in the task switcher
Archiving
Most iOS applications are, at base, doing the same thing: providing an interface for the user to manipulate data. Every object in an application has a role in this process. Model objects are responsible ...
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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.