Learning Objective-C 2.0: A Hands-On Guide to Objective-C for Mac and iOS Developers [Repost]

Get Started Fast with Objective-C 2.0 Programming for OS X, iPhone, iPod touch, and iPad
If you want to learn Objective-C 2.0 to write programs for Mac OS X, iPhone, iPad, or iPod touch, you’ve come to the right place! Concise, readable, and friendly, Learning Objective-C 2.0 is the perfect beginner’s guide to the latest version of Objective-C.
Longtime Mac OS X and iPhone developer Robert Clair covers everything from the absolute basics to Objective-C 2.0’s newest innovations. Clair begins with a practical refresher on C and object-oriented programming and walks you through creating your first Objective-C program with Xcode. Next, you’ll master each core language feature, from objects and classes to messaging, frameworks, and protocols. Every concept is illustrated with simple examples, and many chapters contain hands-on practice exercises.
Throughout, Learning Objective-C 2.0 focuses on the features, concepts, and techniques that matter most day to day. The result is an outstanding first book for everyone who wants to begin programming for iPhone, iPod touch, iPad, or Mac OS X.
COVERAGE INCLUDES
Understanding methods, messages, and the Objective-C messaging system
Defining classes, creating object instances, and using class objects
Using categories to extend classes without subclassing
Simplifying development with Objective-C 2.0 declared properties
Using protocols to emphasize behavior rather than class
Working with common Foundation classes for strings, arrays, dictionaries, sets, and number objects
Using Objective-C control structures, including Objective-C 2.0’s new fast enumeration construct
Understanding application security and hiding the declaration of methods that should stay private
Using the new blocks feature provided in Objective-C 2.0