December 2011
Intermediate to advanced
792 pages
20h 20m
English
book
Learning iPad Programming: A Hands-On Guide to Building iPad Apps with iOS 5
by Kirby Turner, Tom Harrington
Content preview from Learning iPad Programming: A Hands-On Guide to Building iPad Apps with iOS 5Become 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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13. Data Persistence
In the preceding chapter we added the ability for the prototype app to take photos with the device cameras. Now that photos are coming into the app, it’s time to develop a system for saving and managing them. In this chapter we’ll discuss what kind of data the app will deal with and how to manage and save it effectively. This chapter will implement the Model part of the Model-View-Controller design pattern.
The Data Model
In order to effectively build the data model, you need to have a clear idea of what kind of data you’ll be working with and how the various types of data relate to each other. For this app there are two types of data: photos and photo albums.
Photos
Since this app arranges photos in albums, the most obvious ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.