WatchKit is an API that extends Apple's development environment for iOS applications to allow apps / notifications to extend to the Apple Watch product. WatchKit is the Objective-C and Swift framework created by Apple to allow third-party developers to create apps for the Apple Watch ecosystem.

1. Presented By :- Neha Gupta, Mindfire Solutions
Date :- 11th June 2015
Watch-Kit Development
(iWatch)

2. Content

Overview of Watch-Kit

Interaction with Apple Watch

Configure Apple Watch into Xcode

App Target Structure

Watch kit App life cycle

Apple Watch UI Controls

Apple Watch Navigation

Passing data b/w interface controllers

3. Overview of WatchKit App

WatchKit is an Apple's new framework to create applications for apple
watch.

WatchKit apps are not standalone apps, means these apps need
to be paired with iOS App.

Watch App will be an extension of iPhone Apps. The iPhone app is
responsible for installing and running watch app.
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4. Apple Watch Models
Apple has introduced apple watch with two different size, both having
retina display.

38mm screen with 272*340 px resolution

42mm screen with 312*390 px resolution

5. Interaction with Apple Watch

Gesture

Force Touch (holding or tapping the screen for few seconds, menu
screen will be displayed)

Digital Crown

Side button

6. Configure Apple Watch into Xcode
Steps to add watch kit app target into iOS App :-

In xcode, create a new project for iOS App

Select File>New>Target>Apple Watch Section

Select WatchKit App then click next

Click Finish

7. App Target Structure

8. Build and Run Process
Steps to configure custom build schemes for glance and notification :-

Select existing watch kit app scheme

Now select Edit Scheme

Duplicate existing watch app scheme

Select Run in the left column of scheme editor

In Info Tab, select watch interface

Close the scheme editor to save your changes

9. Watch Kit App Life Cycle

10. Life Cycle of Interface Controller

11. Methods of Interface Controller

init

awakeWithContext:

willActivate

didActivate

12. Apple Watch UI Component
Apple watch provides 3 different ways to create the UI :-

WatchKit Apps

Glances

Notifications

13. Apple Watch UI Controls

Text and Labels

Button

Images

Tables

Context Menus

Groups

Date

NSTimer

14. Apple Watch Navigation

Hierarchical Interface
- pushControllerWithName:context
- popController
- popToRootController

Page-Based Interface
+ reloadRootControllersWithNames:contexts:
- becomeCurrentPage

Present Interface Controller Modally
- presentControllerWithName:context:
- presentControllerWithNames:contexts:
- dismissController

15. Passing Data between Interface Controllers

By pushing view controller programmatically :-
self.pushControllerWithName("PushData", context: "Data Received by
pushing interface controller")

By creating segues :-
override func contextForSegueWithIdentifier(segueIdentifier: String) ->
AnyObject?
{
return "Data Received from Segue"
}

16. Demo of layout implementation
using Groups, button and images, table and
menus

17. Limitations of Apple Watch

Multi-touch is not supported.

No access to the sensors on the Apple Watch.

Watch App has 20MB image cache, limit cannot be changed.

Watch kit Extensions cannot perform any processing after being
deactivated.

18. Reference and Demos Link

https://developer.apple.com/library/ios/documentation/General/Conceptual/Wa
tchKitProgrammingGuide/index.html

http://swiftiostutorials.com/watchkit-tutorial/

http://natashatherobot.com/watchkit-menu/

http://www.kristinathai.com/send-data-to-parent-ios-app/

19. Questions ?

20. Thank You