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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Motion Events
In Chapter 5, we briefly talked about UIView’s superclass, UIResponder. Instances of UIResponder can become the first responder of the window and will receive events when the device is shaken or a key is pressed on the keyboard. You will make the instance of HypnosisView the first responder of Hypnosister’s window. Shaking the device will send a message to the HypnosisView, and that method will change its circleColor.
To give a UIResponder first responder status, you send it the message becomeFirstResponder. In HypnosisterAppDelegate.m, tell the HypnosisView instance to become the first responder. The becomeFirstResponder method returns a Boolean value indicating whether the receiving object successfully became the first responder ...
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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.