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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For the More Curious: NSValueTransformer
Bindings read values from objects.
Sometimes, a value will need some massaging before it can be used.
To fulfill this purpose, Apple created NSValueTransformer.
One example is NSNegateBoolean, which transforms
true into false, and false into true.
The Hidden binding on views in Interface Builder
is very convenient, as long as you are binding to a Bool that is true
when you want the view hidden.
If your Bool is true for shown,
you can simply enter NSNegateBoolean in the
Value Transformer field of the bindings inspector.
No need to jump through hoops to create a bindings-compliant Bool for the
inverse.
You can create your own NSValueTransformer subclasses and attach them to bindings in your ...
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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.