April 2015
Intermediate to advanced
556 pages
17h 47m
English
book
Cocoa Programming for OS X: The Big Nerd Ranch Guide
by Aaron Hillegass, Adam Preble, Nate Chandler
Content preview from Cocoa Programming for OS X: The Big Nerd Ranch Guide
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Does Not Compute, Part 1: Unsatisfiable Constraints
Because constraints are expressed as mathematical expressions and Auto Layout’s job is to solve the entire system together, you may sometimes run into situations where Auto Layout cannot solve the system. Generally this will occur if there are too many or too few constraints.
If there are too many constraints, or if the constraints conflict with each other, we say that the constraints are unsatisfiable. If this happens, the Auto Layout system will recognize it at runtime and print debug information to the console, providing you with a list of the constraints which are in conflict. (If you added your unsatisfiable constraints in Interface Builder, it would inform you of this immediately.) ...
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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.