March 2012
Intermediate to advanced
590 pages
22h 48m
English
Content preview from iOS Programming: The Big Nerd Ranch GuideBecome 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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Making Connections
A connection lets one object know where another object is in memory so that the two objects can work together. When the Quiz application loads QuizViewController.xib, the view objects that make up the interface and the QuizViewController have no idea how to reach each other. The QuizViewController needs to know where the labels are in memory so that it can tell them what to display. The buttons need to know where the QuizViewController is so that they can report when they are tapped. Your objects need connections.
Figure 1.13 shows the connections for Quiz. Some have already been made by the template (between the view outlet of QuizViewController and the UIView instance, for example), and some were made implicitly (dragging ...
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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.