November 2013
Beginner
592 pages
17h 49m
English
book
Learning iOS Development: A Hands-on Guide to the Fundamentals of iOS Programming
by Maurice Sharp, Erica Sadun, Rod Strougo
Content preview from Learning iOS Development: A Hands-on Guide to the Fundamentals of iOS ProgrammingBecome 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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Moving On to the Debugger
Instruments showed a call to viewWillAppear:, a part of the view-opening cycle, and that gives you a place to start with the debugger. To be safe, put a breakpoint in both viewDidLoad and viewWillAppear: in ViewCarTableViewController.m. Optionally, you can practice editing breakpoints and set the ignore count to 1 since you know the first call works.
Run the app and reproduce the crash. If you did not set an ignore count, or if you have to try multiple times to reproduce the condition, continue using the keyboard shortcut Ctrl-Cmd-Y instead of the Product > Debug submenu.
The app crashes, but it does not hit one of the breakpoints. That gives you a possible clue. You need to look at what you know:
UINavigationController ...
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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.