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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Model-View-Controller
You may hear iOS programmers mention the Model-View-Controller pattern. What this means is every object you create is exactly one of the following: a model object, a view object, or a controller object.
View objects are visible to the user. In Quiz, the buttons, labels, and window are all view objects. Views are usually standard UIView subclasses (UIButton, UISlider), but you will sometimes write custom view classes. These typically have names like DangerMeterView or IncomeGraphView.
Model objects hold data and know nothing about the user interface. In this application, the model objects will be two arrays of strings: the questions array and the answers array. Figure 1.11 displays the object diagram of the Quiz application’s ...
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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.