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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UIKit Drawing Additions
There are a number of Foundation and UIKit classes that can work with a CGContextRef. One such class is UIColor. An instance of UIColor represents a color and can be used to set the current drawing color of the context. In HypnosisView.m, replace the line of code that changes the stroke color with one that uses UIColor’s colorWithRed:green:blue:alpha: method.
CGContextSetLineWidth(ctx, 10);CGContextSetRGBStrokeColor(ctx, 0.6, 0.6, 0.6, 1.0);[[UIColor colorWithRed:0.6 green:0.6 blue:0.6 alpha:1] setStroke];
Build and run the application again. The HypnosisView will look ...
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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.