WatchKit

WatchKit is a framework provided by Apple in order to develop interfaces for Apple Watch applications.[1] In order to develop using WatchKit, more information and resources are provided by Apple in the WatchKit library.[2] WatchKit contains all the classes that a WatchKit extension uses to develop an application.

## Classes

WatchKit provides some classes for general purposes, as representing controllers, interfaces and alert actions.

Also provides support for file management, through the following classes:

And a set of classes that inherit from WKInterfaceObject and represents visual UI elements.

## Protocols

WatchKit provides two protocols: WKExtensionDelegate and WKImageAnimatable. WKExtensionDelegate is intended to manage the behaviour of the WatchKit extension and WKImageAnimatable controls the playback of animated images.

## References

1. ↑ "WatchKit - Apple Developer". apple.com. https://developer.apple.com/watchkit/.
2. ↑ "WatchKit Programming Guide: Developing for Apple Watch". apple.com. 21 October 2015. https://developer.apple.com/library/watchos/documentation/General/Conceptual/WatchKitProgrammingGuide/index.html#//apple_ref/doc/uid/TP40014969.

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