November 2013
Beginner
325 pages
9h 47m
English
Content preview from Objective-C Programming: The Big Nerd Ranch Guide
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The application delegate
When an iOS application first launches, a lot of setup is happening behind the scenes. An instance of UIApplication is created to control the application’s state and act as liaison to the operating system. An instance of BNRAppDelegate is also created and set as the delegate of the UIApplication instance (which explains the name “app delegate”).
This makes BNRAppDelegate a busy class. In fact, all of the code that you will write for this application will be in BNRAppDelegate.m. It would be good to have a way to organize the class so that it would be easy to find methods quickly. You can use #pragma mark to group methods within a class for easier navigation.
In BNRAppDelegate.m, add a #pragma mark that identifies ...
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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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