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Xcode 4 iOS Development by Steven F. Daniel

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Understanding Cocoa, the language of the Mac

Cocoa is defined as the development framework used for the development of most native Mac OS X applications. A good example of a Cocoa-related application is Mail or Text Edit.

This framework consists of a collection of shared object code libraries known as the Cocoa frameworks. It consists of a runtime system and a development environment. This set of frameworks provides you with a consistent and optimized set of pre-built code modules that will speed up your development process.

Cocoa provides you with a rich layer of functionality, as well as a comprehensive object-oriented like structure and APIs on which you can build your applications. Cocoa uses the Model-View-Controller (MVC) design pattern. ...

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