June 2011
Intermediate to advanced
590 pages
19h 31m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, Second EditionBecome 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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4Delegation and Core Location
In this chapter, we will introduce delegation, a recurring design pattern of Cocoa Touch development and the Core Location framework, which provides the location-finding features of iOS. In addition, we will also take a quick look at how to use the debugger that Xcode provides to find and fix problems in your code.
To learn about delegation, you’re going to write an application called Whereami that uses delegation over and over again. This application will display an interactive map and allow the user to tag the current location with a pin and a title. This exercise spans two chapters. At the end of this chapter, the application won’t look like much, but the final product – and the clearer understanding of delegation ...
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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.