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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Dot Notation
Introduced with Objective-C 2.0, dot notation provides a simple mechanism for accessing properties that have accessor methods. To get the value of a property, use this:
UIImage *image = self.myImage;
To set the value of a property, use this:
self.myString = @"Another string";
Dot notation can be strung together to simplify accessing or updating values for nested objects.
self.myView.myLabel.text = @"Label Title";
Note
ARC memory qualifiers set on properties do not protect against retain cycles. A retain cycle is when two objects have strong references to each other, and the compiler is never able to release them. An example of this is a delegate ...
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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.