November 2013
Intermediate to advanced
576 pages
19h 3m
English
book
iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK
by Kyle Richter, Joe Keeley
Content preview from iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK
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Literals
When Xcode 4.4 was released in July of 2012, the compiler was updated to add support for several new types of literal syntax that make declaring and using NSNumber, NSArray, and NSDictionary much simpler and much more readable. The new syntax follows the lead of NSString literals by using the @ prefix with syntactical elements to define Objective-C objects:
NSString *aString = @"This is a string.";
Now, an @ symbol followed by numbers, brackets, curly braces, or parentheses has special meaning and represents an Objective-C object:
NSNumber *integerNumber = @45;NSArray *workArray = @[aString, floatNumber, integerNumber];NSDictionary *workDict = @{ @"float": floatNumber, ...
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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.
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.