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WWDC21

196sessions

70hours

1174code snippets

196with transcripts

Related resources catalog · .tsv · Open in observatory

Accelerate machine learning with Metal Performance Shaders Graph

15 snippets

29 min
Accelerate networking with HTTP/3 and QUIC

5 snippets

20 min
Accessibility by design: An Apple Watch for everyone

10 min
Accessibility by design: An Apple Watch for everyone (ASL)

10 min
Add intelligence to your widgets

3 snippets

19 min
Add rich graphics to your SwiftUI app

4 snippets

24 min
Add support for Matter in your smart home app

7 snippets

18 min
Adopt Quick Note

4 snippets

15 min
Analyze HTTP traffic in Instruments

34 min
Apple’s privacy pillars in focus

1 snippet

34 min
AR Quick Look, meet Object Capture

1 snippet

14 min
ARC in Swift: Basics and beyond

13 snippets

21 min
Automate CloudKit tests with cktool and declarative schema

5 snippets

10 min
Bring accessibility to charts in your app

6 snippets

20 min
Bring Core Data concurrency to Swift and SwiftUI

4 snippets

27 min
Bring Recurring Leaderboards to your game

26 min
Build a research and care app, part 1: Setup onboarding

15 min
Build a research and care app, part 2: Schedule tasks

16 min
Build a research and care app, part 3: Visualize progress

14 min
Build a workout app for Apple Watch

65 snippets

54 min
Build apps that share data through CloudKit and Core Data

6 snippets

25 min
Build custom experiences with Group Activities

2 snippets

25 min
Build dynamic iOS apps with the Create ML framework

5 snippets

17 min
Build interactive tutorials using DocC

18 snippets

22 min
Build interfaces with style

19 min
Build light and fast App Clips

3 snippets

30 min
Build Mail app extensions

18 min
Capture and process ProRAW images

29 snippets

27 min
Capture high-quality photos using video formats

15 min
Classify hand poses and actions with Create ML

5 snippets

27 min
Connect Bluetooth devices to Apple Watch

4 snippets

11 min
Coordinate media experiences with Group Activities

5 snippets

38 min
Coordinate media playback in Safari with Group Activities

3 snippets

12 min
Craft search experiences in SwiftUI

8 snippets

12 min
Create 3D models with Object Capture

3 snippets

28 min
Create 3D workflows with USD

15 min
Create accessible experiences for watchOS

10 snippets

23 min
Create audio drivers with DriverKit

15 snippets

19 min
Create custom audio experiences with ShazamKit

16 min
Create custom symbols

26 min
Create image processing apps powered by Apple silicon

4 snippets

30 min
Customize and resize sheets in UIKit

15 snippets

12 min
Customize your advanced Xcode Cloud workflows

1 snippet

22 min
Deliver a great playback experience on tvOS

4 snippets

11 min
Demystify SwiftUI

40 min
Design for Group Activities

9 min
Design for Safari 15

34 min
Design for spatial interaction

18 min
Design great actions for Shortcuts, Siri, and Suggestions

22 min
Detect and diagnose memory issues

1 snippet

29 min
Detect bugs early with the static analyzer

9 min
Detect people, faces, and poses using Vision

6 snippets

18 min
Develop advanced web content

37 min
Developer spotlight: Accessibility

6 min
Diagnose Power and Performance regressions in your app

2 snippets

16 min
Diagnose unreliable code with test repetitions

5 snippets

9 min
Direct and reflect focus in SwiftUI

10 snippets

11 min
Discover account-driven User Enrollment

21 min
Discover and curate Swift Packages using Collections

8 snippets

14 min
Discover breakpoint improvements

1 snippet

13 min
Discover built-in sound classification in SoundAnalysis

3 snippets

19 min
Discover compilation workflows in Metal

9 snippets

25 min
Discover concurrency in SwiftUI

8 snippets

23 min
Discover geometry-aware audio with the Physical Audio Spatialization Engine (PHASE)

14 snippets

37 min
Discover Metal debugging, profiling, and asset creation tools

4 snippets

40 min
Discover rolling clips with ReplayKit

4 snippets

9 min
Discover Web Inspector improvements

29 min
Discoverable design

33 min
Distribute apps in Xcode with cloud signing

22 min
Dive into RealityKit 2

7 snippets

25 min
Donate intents and expand your app’s presence

3 snippets

20 min
Elevate your DocC documentation in Xcode

2 snippets

18 min
Embrace Expected Failures in XCTest

7 snippets

12 min
Enhance your app with Metal ray tracing

22 snippets

30 min
Evaluate videos with the Advanced Video Quality Tool

17 min
Explore advanced project configuration in Xcode

13 snippets

26 min
Explore advanced rendering with RealityKit 2

14 snippets

30 min
Explore ARKit 5

9 snippets

20 min
Explore bindless rendering in Metal

12 snippets

21 min
Explore Core Image kernel improvements

4 snippets

9 min
Explore Digital Crown, Trackpad, and iPad pointer automation

9 snippets

9 min
Explore dynamic pre-rolls and mid-rolls in HLS

4 snippets

15 min
Explore HDR rendering with EDR

8 snippets

34 min
Explore HLS variants in AVFoundation

7 snippets

9 min
Explore hybrid rendering with Metal ray tracing

6 snippets

30 min
Explore low-latency video encoding with VideoToolbox

2 snippets

20 min
Explore Nearby Interaction with third-party accessories

23 min
Explore Safari Web Extension improvements

17 min
Explore ShazamKit

3 snippets

15 min
Explore structured concurrency in Swift

12 snippets

28 min
Explore the catalog with the Apple Music API

6 snippets

8 min
Explore the SF Symbols 3 app

13 min
Explore UWB-based car keys

16 min
Explore Verifiable Health Records

18 min
Explore WKWebView additions

22 min
Explore Xcode Cloud workflows

24 min
Extract document data using Vision

2 snippets

19 min
Faster and simpler notarization for Mac apps

2 snippets

6 min
Focus on iPad keyboard navigation

15 snippets

20 min
Get ready for iCloud Private Relay

15 min
Get ready to optimize your App Store product page

8 min
Host and automate your DocC documentation

3 snippets

14 min
Immerse your app in Spatial Audio

5 snippets

18 min
Improve access to Photos in your app

18 min
Improve global streaming availability with HLS Content Steering

13 min
Improve MDM assignment of Apps and Books

9 snippets

16 min
Localize your SwiftUI app

10 snippets

18 min
Make blazing fast lists and collection views

13 snippets

23 min
Manage devices with Apple Configurator

10 min
Manage in-app purchases on your server

34 min
Manage software updates in your organization

18 min
Measure health with motion

8 snippets

21 min
Meditation for fidgety skeptics

29 min
Meet async/await in Swift

11 snippets

34 min
Meet AsyncSequence

14 snippets

14 min
Meet ClassKit for file-based apps

5 snippets

14 min
Meet CloudKit Console

7 min
Meet declarative device management

22 min
Meet DocC documentation in Xcode

8 snippets

23 min
Meet Group Activities

17 min
Meet in-app events on the App Store

14 min
Meet MusicKit for Swift

6 snippets

18 min
Meet privacy-preserving ad attribution

23 min
Meet Safari Web Extensions on iOS

38 min
Meet Shortcuts for macOS

6 snippets

27 min
Meet StoreKit 2

38 min
Meet TestFlight on Mac

11 min
Meet TextKit 2

8 snippets

41 min
Meet the Location Button

13 min
Meet the Screen Time API

19 min
Meet the Swift Algorithms and Collections packages

23 snippets

31 min
Meet the UIKit button system

8 snippets

20 min
Meet Xcode Cloud

1 snippet

17 min
Mitigate fraud with App Attest and DeviceCheck

3 snippets

19 min
Move beyond passwords

3 snippets

25 min
Optimize for 5G networks

14 min
Optimize for variable refresh rate displays

10 snippets

23 min
Optimize high-end games for Apple GPUs

2 snippets

32 min
Out of this world... on to Mars

17 min
Practice audio haptic design

1 snippet

16 min
Principles of great widgets

5 snippets

27 min
Protect mutable state with Swift actors

19 snippets

29 min
Qualities of a great Mac Catalyst app

14 snippets

24 min
Qualities of great iPad and iPhone apps on Macs with M1

3 snippets

23 min
Reduce network delays for your app

5 snippets

23 min
Review code and collaborate in Xcode

11 min
Safeguard your accounts, promotions, and content

12 min
Secure login with iCloud Keychain verification codes

15 min
Send communication and Time Sensitive notifications

12 snippets

21 min
SF Symbols in SwiftUI

12 snippets

11 min
SF Symbols in UIKit and AppKit

18 snippets

15 min
Showcase app data in Spotlight

5 snippets

17 min
Simplify sign in for your tvOS apps

4 snippets

8 min
Streamline your localized strings

20 snippets

27 min
Support customers and handle refunds

25 min
Support Full Keyboard Access in your iOS app

7 snippets

17 min
Swift concurrency: Behind the scenes

5 snippets

39 min
Swift concurrency: Update a sample app

29 snippets

1h 1m
SwiftUI Accessibility: Beyond the basics

16 snippets

28 min
SwiftUI on the Mac: Build the fundamentals

17 min
SwiftUI on the Mac: The finishing touches

17 min
Symbolication: Beyond the basics

17 snippets

37 min
Sync files to the cloud with FileProvider on macOS

18 min
Tailor the VoiceOver experience in your data-rich apps

5 snippets

10 min
Take your iPad apps to the next level

18 snippets

36 min
Tap into virtual and physical game controllers

4 snippets

15 min
The practice of inclusive design

34 min
The process of inclusive design

37 min
There and back again: Data transfer on Apple Watch

12 snippets

32 min
Transition media gaplessly with HLS

1 snippet

11 min
Triage TestFlight crashes in Xcode Organizer

1 snippet

15 min
Tune your Core ML models

25 min
Ultimate application performance survival guide

5 snippets

24 min
Understand and eliminate hangs from your app

24 min
Use Accelerate to improve performance and incorporate encrypted archives

3 snippets

14 min
Use async/await with URLSession

7 snippets

14 min
Use the camera for keyboard input in your app

4 snippets

12 min
What’s new in App Analytics

13 min
What’s new in App Clips

16 min
What’s new in AppKit

2 snippets

22 min
What’s new in AVFoundation

13 snippets

17 min
What’s new in AVKit

12 snippets

8 min
What’s new in camera capture

5 snippets

36 min
What’s new in CloudKit

13 snippets

27 min
What’s new in Foundation

23 snippets

38 min
What’s new in Game Center: Widgets, friends, and multiplayer improvements

6 snippets

22 min
What’s new in Mac Catalyst

22 snippets

27 min
What’s new in managing Apple devices

14 min
What’s new in SF Symbols

21 min
What‘s new in Swift

23 snippets

33 min
What’s new in SwiftUI

70 snippets

40 min
What’s new in UIKit

8 snippets

27 min
What’s new in Wallet and Apple Pay

19 min
What’s new in watchOS 8

2 snippets

20 min
Write a DSL in Swift using result builders

46 snippets

47 min
Your guide to keyboard layout

4 snippets

15 min