Discover Observation in SwiftUI

WWDC Index does not host video files

If you have access to video files, you can configure a URL pattern to be used in a video player.

Use any of these variables in your URL pattern, the pattern is stored in your browsers' local storage.

$id
ID of session: wwdc2023-10149: $eventId
ID of event: wwdc2023: $eventContentId
ID of session without event part: 10149: $eventShortId
Shortened ID of event: wwdc23: $year
Year of session: 2023: $extension
Extension of original filename: mp4: $filenameAlmostEvery
Filename from "(Almost) Every..." gist: [2023] [Session 10149] Discover ...

WWDC23 • Session 10149

SwiftUI & UI Frameworks • iOS, macOS, tvOS, watchOS • 12:51

Simplify your SwiftUI data models with Observation. We’ll share how the Observable macro can help you simplify models and improve your app’s performance. Get to know Observation, learn the fundamentals of the macro, and find out how to migrate from ObservableObject to Observable.

Speaker: Philippe Hausler

Open in Apple Developer site

Downloads from Apple

HD Video (129.8 MB)
SD Video (35.2 MB)