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Cocoa Touch

Cocoa Touch is a UI framework for building software programs to run on iOS (for the iPhone, iPod Touch, and iPad) from Apple Inc. Cocoa Touch provides an abstraction layer of iOS, the operating system for the iPhone, iPod Touch, and iPad. Cocoa Touch is based on the Mac OS X Cocoa API toolset and, like it, is primarily written in the Objective-C language. Cocoa Touch allows the use of hardware and features that are not found in Mac OS X computers and are thus unique to the iOS range of devices. Just like Cocoa, Cocoa Touch follows a Model-View-Controller (MVC) software architecture. Cocoa Touch contains a different set of graphical control elements to Cocoa. Tools for developing applications based on Cocoa Touch are included in the iOS SDK.


Some of the main features and technologies of Cocoa Touch are:

  • Core Animation
  • Multitasking
  • Gesture Recognizers


Cocoa Touch provides the key frameworks for developing applications on devices running iOS. Some of these key frameworks are:

  • Foundation Kit Framework
  • UIKit Framework (based on Application Kit)
  • GameKit Framework
  • iAd Framework
  • MapKit Framework