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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, watchOS for the Apple Watch, and tvOS for the fourth-generation Apple TV, 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 macOS 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 macOS 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 from Cocoa. Tools for developing applications based on Cocoa Touch are included in the iOS SDK. (from Wikipedia) |