Between watchOS 1 and watchOS 4, there have been some very significant changes that affect how you develop your code. Steve explains the evolution of watchOS and why it is so important to know the difference between versions.
- [Instructor] Apple Watch has gone through some…radical differences in architecture…in its four versions,…moving around the WatchKit app and extension.…To give us some context about the current architecture,…let's see how watchOS has changed over time.…In Apple's first iteration to Watch, it had no watchOS.…Instead, they added a framework to iOS called WatchKit.…WatchKit contains the user interface elements…of watchOS and thus watchOS will often be called WatchKit.…WatchKit adds two more targets the application,…the WatchKit app and the WatchKit extension.…
The Watch extension was not on the watch…but was on the phone along with the iPhone app.…And the Watch app was the only thing on the watch.…For a Watch application to work required Bluetooth…to communicate any changes from the Watch app…like a button pressed to the extension on the phone…back to the watch.…Then the extension would then communicate…with the Watch app to make changes to the interface.…This made for some very slow applications.…The watch had three ways to show you information.…
- Principles of watchOS development
- Adding buttons and labels to your app
- Connecting objects to code
- Testing a watchOS app
- Laying out WatchKit UI objects
- Adding navigation
- Using Interface Library elements such as inputs, pickers, and media players
- Creating tables
- Working with table data
Skill Level Intermediate
Google Firebase for iOS: First Lookwith Joe Marini1h 4m Intermediate
1. A Look at the Apple Watch App
2. Building Your First Apple Watch App
3. Working with UI in watchOS
5. Interface Library
6. Tables and Scrolling
Next steps1m 57s
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