If you're like us, you don't like redundant code. We wrote these helpers and additions mostly to clean up our source code; hopefully, you can benefit from these efforts as well.
This is a collection of functions and preprocessor macros that can simplify your
Cocoa Touch code quite a bit. (Most of the macros and one function could also
be used with regular Cocoa.) In order to use it, you have to define a
preprocessor macro for every target: DELEGATE_CLASS=XYZ, where XYZ is your
the name of your application delegate class. Then, open the precompiled header
file (*-Prefix.pch) and insert #import "QAUtilities.h" at the bottom.
In addition, you have to call
QAInitialize(self) in -application:didFinishLaunchingWithOptions: of your
application delegate.
A simple category on NSUserDefaults that makes a few common settings easier
to use.
A category on NSString that implements some methods that should have been in
that class in the first place.