WWDC 2023 Video Sessions

Apple's WWDC 2023 is over. In the past month, from Jun 6 to Jul 23, I have watched all videos published by Apple on the web. The following is a complete list of videos I have watched.

1. Keynotes
2. Platforms state of the union
3. 17 big & little things at WWDC23
4. What Apple developers need to know at WWDC23
5. Add SharePlay to your app
6. Bring widgets to new places
7. Bring your game to Mac, Part 1: Make a game plan
8. Bring your game to Mac, Part 2: Compile your shaders
9. Bring your game to Mac, Part 3: Render with Metal
10. Build custom workouts with WorkoutKit
11. Build great games for spatial computing
12. Build spatial experiences with RealityKit
13. Create a great ShazamKit experience
14. Create accessible spatial experiences
15. Create rich documentation with Swift-DocC
16. Debug with structured logging
17. Design and build apps for watchOS 10
18. Design for spatial input
19. Design for spatial user interfaces
20. Design spatial SharePlay experiences
21. Detect animal poses in Vision
22. Develop your first immersive app
23. Discover Observation in SwiftUI
24. Discover String Catalogs
25. Discover machine learning enhancements in Create ML
26. Enhance your app’s audio experience with AirPods
27. Enhance your iPad and iPhone apps for the Shared Space
28. Expand on Swift macros
29. Explore App Store Connect for spatial computing
30. Explore enhancements to RoomPlan
31. Generalize APIs with parameter packs
32. Get started with building apps for spatial computing
33. Integrate your media app with HomePod
34. Lift subjects from images in your app
35. Make features discoverable with TipKit
36. Meet ARKit for spatial computing
37. Meet ActivityKit
38. Meet MapKit for SwiftUI
39. Meet Reality Composer Pro
40. Meet Safari for spatial computing
41. Meet StoreKit for SwiftUI
42. Meet SwiftData
43. Meet SwiftUI for spatial computing
44. Meet UIKit for spatial computing
45. Meet watchOS 10
46. Perform accessibility audits for your app
47. Principles of spatial design
48. Ready, set, relay: Protect app traffic with network relays
49. Run your iPad and iPhone apps in the Shared Space
50. Spotlight your app with App Shortcuts
51. Support Cinematic mode videos in your app
52. Support HDR images in your app
53. Sync to iCloud with CKSyncEngine
54. Tune up your AirPlay audio experience
55. Unleash the UIKit trait system
56. Unlock the power of grammatical agreement
57. What’s new in SF Symbols 5
58. What’s new in StoreKit 2 and StoreKit Testing in Xcode
59. What’s new in Swift
60. What’s new in SwiftUI
61. What’s new in UIKit
62. What’s new in VisionKit
63. What’s new in Xcode 15
64. What’s new in managing Apple devices
65. What’s new in web apps
66. Wind your way through advanced animations in SwiftUI
67. Write Swift macros
68. Beyond scroll views
69. Bring widgets to life
70. Bring your Unity VR app to a fully immersive space
71. Build accessible apps with SwiftUI and UIKit
72. Build an app with SwiftData
73. Build programmatic UI with Xcode Previews
74. Build widgets for the Smart Stack on Apple Watch
75. Create a more responsive camera experience
76. Create animated symbols
77. Create immersive Unity apps
78. Create seamless experiences with Virtualization
79. Deliver video content for spatial experiences
80. Deploy passkeys at work
81. Design widgets for the Smart Stack on Apple Watch
82. Design with SwiftUI
83. Discover Calendar and EventKit
84. Discover Continuity Camera for tvOS
85. Enhance your spatial computing app with RealityKit
86. Evolve your ARKit app for spatial experiences
87. Explore 3D body pose and person segmentation in Vision
88. Explore Natural Language multilingual models
89. Explore SwiftUI animation
90. Explore advances in declarative device management
91. Explore enhancements to App Intents
92. Explore immersive sound design
93. Explore materials in Reality Composer Pro
94. Fix failures faster with Xcode test reports
95. Get started with privacy manifests
96. Inspectors in SwiftUI: Discover the details
97. Meet Core Location for spatial computing
98. Meet Object Capture for iOS
99. Meet Push Notifications Console
100. Meet RealityKit Trace
101. Meet mergeable libraries
102. Mix Swift and C++
103. Model your schema with SwiftData
104. Optimize CarPlay for vehicle systems
105. Optimize app power and performance for spatial computing
106. Rediscover Safari developer features
107. Simplify distribution in Xcode and Xcode Cloud
108. Take SwiftUI to the next dimension
109. Update your app for watchOS 10
110. Verify app dependencies with digital signatures
111. What’s new in App Clips
112. What’s new in App Store Connect
113. What’s new in App Store pricing
114. What’s new in App Store server APIs
115. What’s new in AppKit
116. What’s new in CSS
117. What’s new in privacy
118. What’s new in voice processing
119. Work with Reality Composer Pro content in Xcode
120. Your guide to Metal ray tracing
121. Analyze hangs with Instruments
122. Animate symbols in your app
123. Beyond the basics of structured concurrency
124. Build a multi-device workout app
125. Build better document-based apps
126. Build robust and resumable file transfers
127. Build spatial SharePlay experiences
128. Create 3D models for Quick Look spatial experiences
129. Create a great spatial playback experience
130. Create practical workflows in Xcode Cloud
131. Demystify SwiftUI performance
132. Design Shortcuts for Spotlight
133. Design dynamic Live Activities
134. Discover Quick Look for spatial computing
135. Do more with Managed Apple IDs
136. Explore media formats for the web
137. Explore pie charts and interactivity in Swift Charts
138. Explore rendering for spatial computing
139. Extend Speech Synthesis with personal and custom voices
140. Go beyond the window with SwiftUI
141. Improve Core ML integration with async prediction
142. Integrate with motorized iPhone stands using DockKit
143. Meet Core Location Monitor
144. Meet the App Store Server Library
145. Migrate to SwiftData
146. Optimize GPU renderers with Metal
147. Optimize machine learning for Metal apps
148. Protect your Mac app with environment constraints
149. Prototype with Xcode Playgrounds
150. Reduce network delays with L4S
151. Support external cameras in your iPadOS app
152. Update Live Activities with push notifications
153. Use Core ML Tools for machine learning model compression
154. What’s new in App Store pre-orders
155. What’s new in Background Assets
156. What’s new in Core Data
157. What’s new in ScreenCaptureKit
158. What’s new in Wallet and Apple Pay
159. What’s new with text and text interactions
160. Animate with springs
161. Customize on-device speech recognition
162. Design considerations for vision and motion
163. Discover Metal for immersive apps
164. Discover streamlined location updates
165. Dive deeper into SwiftData
166. Elevate your windowed app for spatial computing
167. Embed the Photos Picker in your app
168. Explore AirPlay with interstitials
169. Explore testing in-app purchases
170. Explore the USD ecosystem
171. Keep up with the keyboard
172. Meet Assistive Access
173. Meet Swift OpenAPI Generator
174. Meet device management for Apple Watch
175. Share files with SharePlay
176. The SwiftUI cookbook for focus
177. What’s new in Core Motion
178. What’s new in Safari extensions
179. What’s new in Web Inspector

References

• WWDC 2023 Videos

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WWDC 2022 Video Sessions

Last June, Apple hosted WWDC 2022 at its headquarters. Video sessions, from June 7 to 10, are available at the Apple developer site. As usual, I watched those videos in the past few months. Now I've finished watching all of them.

The following are videos I watched.

Monday

1. Apple Design Awards
2. Keynote
3. Platforms State of the Union
4. WWDC22 Day 1 recap

Tuesday

1. Add accessibility to your Unity games
2. Adopt Variable Color in SF Symbols
3. Adopt desktop-class editing interactions
4. Bring Continuity Camera to your macOS app
5. Bring your driver to iPad with DriverKit
6. Bring your world into augmented reality
7. Build your first app in Swift Playgrounds
8. Capture machine-readable codes and text with VisionKit
9. Complications and widgets: Reloaded
10. Create a more responsive media app
11. Create macOS or Linux virtual machines
12. Create parametric 3D room scans with RoomPlan
13. Deliver reliable streams with HLS Content Steering
14. Discover Metal 3
15. Dive into App Intents
16. Enhance collaboration experiences with Messages
17. Explore more content with MusicKit
18. Get more mileage out of your app with CarPlay
19. Get the most out of Xcode Cloud
20. Get timely alerts from Bluetooth devices on watchOS
21. Get to know Create ML Components
22. Get to know Developer Mode
23. Hello Swift Charts
24. Implement App Shortcuts with App Intents
25. Load resources faster with Metal 3
26. Meet Apple Maps Server APIs
27. Meet Focus filters
28. Meet Swift Async Algorithms
29. Meet Swift Regex
30. Meet WeatherKit
31. Meet Web Push for Safari
32. Meet desktop-class iPad
33. Meet passkeys
34. Plug-in and play: Add Apple frameworks to your Unity game projects
35. Program Metal in C++ with metal-cpp
36. Qualities of great AR experiences
37. The SwiftUI cookbook for navigation
38. Visualize and optimize Swift concurrency
39. Day 2 recap
40. What's new in App Clips
41. What's new in AppKit
42. What's new in Create ML
43. What's new in Nearby Interaction
44. What's new in SF Symbols 4
45. What's new in Safari and WebKit
46. What's new in SharePlay
47. What's new in Swift
48. What's new in SwiftUI
49. What's new in UIKit
50. What's new in Xcode
51. What's new in managing Apple devices
52. What's new with in-app purchase
53. What’s new in notarization for Mac apps

Wednesday

1. Add Live Text interaction to your app
2. Add Shared with You to your app
3. Adopt declarative device management
4. Boost performance with MetalFX Upscaling
5. Bring your iOS app to the Mac
6. Build a desktop-class iPad app
7. Build a productivity app for Apple Watch
8. Build global apps: Localization by example
9. Compose advanced models with Create ML Components
10. Compose custom layouts with SwiftUI
11. Create engaging content for Swift Playgrounds
12. Create your Privacy Nutrition Label
13. Design App Shortcuts
14. Design an effective chart
15. Design app experiences with charts
16. Discover advancements in iOS camera capture: Depth, focus, and multitasking
17. Display ads and interstitials in SharePlay
18. Eliminate data races using Swift Concurrency
19. Embrace Swift generics
20. Explore EDR on iOS
21. Explore in-app purchase integration and migration
22. Improve the discoverability of your Swift-DocC content
23. Integrate your custom collaboration app with Messages
24. Link fast: Improve build and launch times
25. Meet Apple Music API and MusicKit
26. Meet Background Assets
27. Meet CKTool JS
28. Meet ScreenCaptureKit
29. Meet Transferable
30. Meet distributed actors in Swift
31. Meet the expanded San Francisco font family
32. Optimize your Core ML usage
33. Optimize your use of Core Data and CloudKit
34. Replace CAPTCHAs with Private Access Tokens
35. Streamline local authorization flows
36. Support multiple users in tvOS apps
37. Swift Regex: Beyond the basics
38. Take ScreenCaptureKit to the next level
39. Target and optimize GPU binaries with Metal 3
40. Understand USD fundamentals
41. Use Xcode to develop a multiplatform app
42. WWDC22 Day 3 recap
43. What's new in HealthKit
44. What's new in Swift-DocC
45. What's new with SKAdNetwork
46. What’s new in AVQT
47. What’s new in CloudKit Console
48. What’s new in Endpoint Security
49. What’s new in Safari Web Extensions
50. What’s new in Wallet and Apple Pay
51. What’s new in iPad app design
52. What’s new in privacy

Thursday

1. Create Safari Web Inspector Extensions
2. Create Safari Web Inspector Extensions
3. Create a great video playback experience
4. Create camera extensions with Core Media IO
5. Debug Swift debugging with LLDB
6. Deep dive into Xcode Cloud for teams
7. Demystify parallelization in Xcode builds
8. Design for Arabic
9. Design for Collaboration with Messages
10. Design protocol interfaces in Swift
11. Discover ARKit 6
12. Discover PhotoKit change history
13. Discover Sign in with Apple at Work & School
14. Display EDR content with Core Image, Metal, and SwiftUI
15. Display HDR video in EDR with AVFoundation and Metal
16. Enhance your Sign in with Apple experience
17. Evolve your Core Data schema
18. Explore App Tracking Transparency
19. Explore Apple Business Essentials
20. Get it right(to left)
21. Go bindless with Metal 3
22. Go further with Complications in WidgetKit
23. Improve app size and runtime performance
24. Make a great SharePlay experience
25. Maximize your Metal ray tracing performance
26. Meet Swift Package plugins
27. Reach new players with Game Center dashboard
28. Reduce networking delays for a more responsive app
29. Simplify C++ templates with concepts
30. SwiftUI on iPad: Add toolbars, titles, and more
31. SwiftUI on iPad: Organize your interface
32. The craft of SwiftUI API design: Progressive disclosure
33. Track down hangs with Xcode and on-device detection
34. Transform your geometry with Metal mesh shaders
35. Use SwiftUI with AppKit
36. Use SwiftUI with UIKit
37. WWDC22 Day 4 recap
38. What's new in App Store Connect
39. What's new in MapKit
40. What's new in StoreKit testing
41. What's new in TextKit and text views
42. What's new in Vision
43. What's new in the Photos picker
44. What's new in web accessibility
45. What’s new in HLS Interstitials
46. Writing for interfaces

Friday

1. Accelerate machine learning with Metal
2. Author fast and reliable tests for Xcode Cloud
3. Bring multiple windows to your SwiftUI app
4. Build device-to-device interactions with Network Framework
5. Create Swift Package plugins
6. Create accessible Single App Mode experiences
7. Create custom catalogs at scale with ShazamKit
8. Discover Benchmarks in App Analytics
9. Discover Managed Device Attestation
10. Efficiency awaits: Background tasks in SwiftUI
11. Explore SMS message filters
12. Explore media metadata publishing and playback interactions
13. Explore the machine learning development experience
14. Implement proactive in-app purchase restore
15. Improve DNS security for apps and servers
16. Power down: Improve battery consumption
17. Profile and optimize your game's memory
18. Scale compute workloads across Apple GPUs
19. Use Xcode for server-side development
20. WWDC22 Day 5 recap
21. What's new in PDFKit
22. What's new in Screen Time API
23. What's new in WKWebView

References

• WWDC 2022 Vedio sessions

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WWDC 2021 Videos

This year Apple continued its WWDC online. The second time of the conference videos are much better than the last year. Each one is about less than one hour right on the topic. I waited one month after its finish. In this way, the video list is stable and complete.

The following is the complete list I have watched.

1. Add Intelligence to your widgets iOS, macOS Sep 11
2. AR Quick Look, meet Object Capture iOS, macOS Sep 11
3. ARC in Swift: Basics and beyond iOS, macOS, tvOS, watchOS Sep 11
4. Accelerate machine learning with Metal Performance Shaders Graph iOS, macOS Sep 11
5. Accelerate networking with HTTP/3 and QUIC iOS, macOS, tvOS, watchOS Sep 11
6. Accessibility by design: An Apple Watch for everyone watchOS Sep 11
7. Add rich graphics to your SwiftUI app iOS, macOS, tvOS, watchOS Sep 11
8. Add support for Matter in your smart home app iOS Sep 11
9. Adopt Quick Note iOS, macOS Sep 12
10. Analyze HTTP traffic in Instruments iOS, macOS, tvOS, watchOS Sep 12
11. Apple’s privacy pillars in focus iOS Sep 12
12. Automate CloudKit tests with cktool and declarative schema iOS, macOS, tvOS, watchOS Sep 12
13. Bring Core Data concurrency to Swift and SwiftUI iOS, macOS, tvOS, watchOS Sep 12
14. Bring Recurring Leaderboards to your game iOS, macOS, tvOS Sep 13
15. Bring accessibility to charts in our app iOS, macOS, tvOS, watchOS Sep 13
16. Build Mail app extensions macOS Sep 13
17. Build a research and care app, part 1: Setup onboarding iOS Sep 13
18. Build a research and care app, part 2: Schedule tasks iOS Sep 13
19. Build a research and care app, part 3: Visualize progress iOS Sep 13
20. Build a workout app for Apple Watch watchOS Sep 13
21. Build apps that share data through CloudKit and Core Data iOS, macOS tvOS, watchOS Sep 14
22. Build custom experiences with Group Activities iOS, macOS, tvOS Sep 14
23. Build dynamic iOS apps with the Create ML framework iOS Sep 14
24. Build interactive tutorial using DocC iOS, macOS tvOS, watchOS Sep 14
25. Build interfaces with style iOS, macOS Sep 14
26. Build light and fast App Clips iOS Sep 14
27. Capture and process ProRAW images iOS, macOS Sep 14
28. Capture high-quality photos using view formats iOS, macOS Sep 15
29. Classify hand poses and actions with Create ML iOS, macOS Sep 15
30. Connect Bluetooth devices to Apple Watch watchOS Sep 15
31. Coordinate media experiences with Group Activities iOS, macOS, tvOS Sep 15
32. Coordinate media playback in Safari with Group Activities macOS Sep 15
33. Craft search experiences in SwiftUI iOS, macOS, tvOS, watchOS Sep 15
34. Create 3D models with Object Capture iOS, macOS Sep 15
35. Create 3D workflows with USD iOS, macOS Sep 15
36. Create accessible experiences for watchOS watchOS Sep 15
37. Create audio drivers with DriverKit macOS Sep 16
38. Create custom audio experiences with ShazamKit iOS, macOS, tvOS, watchOS Sep 16
39. Create custom symbols iOS, macOS, tvOS, watchOS Sep 16
40. Create image processing apps powered by Apple Silicon iOS, macOS Sep 16
41. Cross reference content with the Apple Music API iOS macOS Sep 16
42. Customize and resize sheets in UIKit macOS Sep 16
43. Customize your advanced Code Cloud workflows iOS, macOS, tvOS, watchOS Sep 16
44. Deliver a great playback experience on tvOS tvOS Sep 16
45. Demystify SwiftUI iOS, macOS, tvOS, watchOS Sep 16
46. Design for Group Activities iOS, macOS, tvOS Sep 16
47. Design for Safari 15 iOS macOS Sep 16
48. Design for spatial integration iOS watchOS Sep 17
49. Design create actions for Shortcuts, Sir, and Suggestions iOS, macOS, watchOS Sep 17
50. Detect and diagnose memory issues iOS, macOS Sep 17
51. Detect bugs early with the static analyzer iOS, macOS, tvOS, watchOS Sep 17
52. Detect people faces and poses using Vision iOS, macOS Sep 17
53. Develop advanced web content iOS, macOS Sep 17
54. Developer spotlight: Accessibility Sep 17
55. Diagnose Power and Performance regressions in your app iOS, macOS Sep 17
56. Diagnose unreliable code with test repetitions iOS, macOS, tyOS, watchOS Sep 17
57. Direct and reflect focus in SwiftUI iOS, macOS, tvOS, watchOS Sep 17
58. Discovery Metal debugging, profiling, and asset creation tools iOS, macOS, tvOS Sep 17
59. Discover Web Inspector improvements iOS, macOS Sep 18
60. Discover account-driven User Enrollment iOS, macOS Sep 18
61. Discover and curate Swift Packages using Collections iOS, macOS, tvOS, watchOS Sep 18
62. Discover breakpoint improvements iOS, macOS, tvOS, watchOS Sep 18
63. Discover build-in sound classification in SoundAnalysis iOS, macOS, tvOS, watchOS Sep 18
64. Discover compilation workflows in Metal iOS, macOS, tvOS Sep 18
65. Discover concurrency in SwiftUI iOS, macOS, tvOS, watchOS Sep 18
66. Discover geometry-aware audio with the Physical Audio Spatialization Engine (PHASE) iOS, macOS Sep 18
67. Discover rolling clips with ReplayKit iOS, macOS, tvOS Sep 19
68. Discoverable design iOS, macOS, tvOS, watchOS Sep 19
69. Distribute apps in Xcode with cloud signing iOS, macOS, tvOS, watchOS Sep 19
70. Dive into RealityKit2 iOS macOS Seep 19
71. Donate intents and expand your app’s presence iOS, watchOS Sep 19
72. Elevate your DocC documentation in Xcode iOS, macOS, tvOS, watchOS Sep 19
73. Embrace Expected Failures in XCTest iOS, macOS, tvOS, watchOS Sep 19
74. Enhance your app with Metal ray tracing iOS, macOS Sep 19
75. Evaluate videos with the Advanced Video Quality Tool iOS, macOS, tvOS Sep 19
76. Explore ARKit 5 iOS Sep 19
77. Explore Core Image kernel improvements iOS, macOS Sep 19
78. Explore Digital Crown , Trackpad, and iPad pointer automation iOS, macOS, tvOS, watchOS Sep 19
79. Explore HDR rendering with EDR iOS, macOS Sep 19
80. Explore HLS variants in AVFoundation iOS, macOS, tvOS, watchOS Sep 19
81. Explore Nearby Interaction with third-party accessories iOS, macOS, tvOS, watchOS Sep 19
82. Explore Safari Web Extension improvements iOS, macOS Sep 19
83. Explore ShazamKit iOS, macOS, tvOS, watchOS Sep 19
84. Explore UWB-based car keys iOS, macOS Sep 20
85. Explore Verifiable Health Records iOS Sep 20
86. Explore WKWebView additions iOS, macOS Sep 20
87. Explore Xcode Cloud workflows iOS, macOS, tvOS, watchOS Sep 20
88. Explore advanced project configuration in Xcode iOS, macOS, tvOS, watchOS Sep 20
89. Explore advanced rendering with RealityKit 2 iOS, macOS Sep 20
90. Explore bindless rendering in Metal iOS, macOS, tvOS Sep 20
91. Explore dynamic pre-rolls and mid-rolls in HLS iOS, macOS, tvOS Sep 20
92. Explore hybrid rendering with Metal ray tracing iOS, macOS Sep 20
93. Explore low-latency video encoding with VideoToolbox iOS, macOS Sep 21
94. Explore structured concurrency in Swift iOS, macOS, tvOS, watchOS Sep 21
95. Explore the SF Symbols 3 app iOS, macOS, tvOS, watchOS Sep 21
96. Explore the catalog with the Apple Music API iOS Sep 21
97. Extract document data using Vision iOS, macOS Sep 21
98. Faster and simpler notarization for Mac apps macOS Sep 21
99. Focus on iPad keyboard navigation iOS Sep 21
100. Get ready for iCloud Private Relay iOS, macOS, tvOS, watchOS Sep 21
101. Get ready to optimize your App Store product page iOS Sep 21
102. Host and automate your DocC documentation iOS, macOS, tvOS, watchOS Sep 21
103. Immerse your app in spatial audio iOS, macOS, tvOS Sep 21
104. Improve MDM assignment of Apps and Books iOS, macOS, tvOS Sep 22
105. Improve access to Photos in your app iOS, macOS Sep 22
106. Improve global streaming availability with HLS Content Steering iOS, macOS, tvOS Sep 22
107. Keynote iOS, macOS, tvOS, watchOS
108. Localize your SwiftUI app iOS, macOS, tvOS, watchOS Sep 22
109. Make blazing fast lists and collection views macOS Sep 22
110. Manage devices with Apple Configurator iOS, macOS Sep 22
111. Manage in=-app purchases on your server iOS, macOS, tvOS Sep 23
112. Manage software updates in your organization iOS, macOS Sep 23
113. Measure health with motion iOS, macOS Sep 23
114. Meditation for fidgety skeptics Sep 23
115. Meet AsyncSequcence iOS, macOS, tvOS,watchOS Sep 23
116. Meet ClassKit for file-based apps iOS Sep 23
117. Meet DocC documentation in Xcode iOS, macOS, tvOS, watchOS Sep 23
118. Meet Group Activities iOS, macOS, tvOS Sep 23
119. Meet MusicKit for Swift iOS, macOS, tvOS watchOS Sep 23
120. Meet Safari Web Extensions on iOS iOS, macOS Sep 23
121. Meet Shortcuts for macOS iOS, macOS Sep 24
122. Meet StoreKit 2 iOS, macOS, tvOS, watchOS Sep 25
123. Meet TestFlight on Mac iOS, macOS, tvOS Sep 25
124. Meet TextKit 2 iOS, macOS Sep 25
125. Meet Xcode Cloud iOS, macOS, tvOS, watchOS Sep 25
126. Meet async/await in Swift iOS, macOS, tvOS, watchOS Sep 26
127. Meet declarative device management iOS, macOS Sep 26
128. Meet in-app events on the App Store iOS, macOS, tvOS Sep 26
129. Meet private-preserving ad attribution iOS, macOS Sep 26
130. Meet the Location Button iOS, macOS, tvOS, watchOS Sep 26
131. Meet the Screen Time API iOS Sep 26
132. Meet the Swift Algorithms and Collections packages iOS, macOS, tvOS, watchOS Sep 27
133. Meet the UIKit button system iOS, macOS, tvOS, watchOS Sep 27
134. Mitigate fraud with App Attest and DeviceCheck iOS, macOS, tvOS Sep 27
135. Move beyond passwords iOS, macOS Sep 27
136. Optimize for 5G networks iOS Sep 27
137. Optimize for variable refresh rate displays iOS, macOS Sep 27
138. Optimize high-end games for Apple GPUs iOS, macOS, tvOS Sep 27
139. Out of this world… on to Mars Sep 27
140. Platforms State of the Union
141. Practice audio haptic design iOS Sep 27
142. Principles of great widgets iOS, macOS Sep 27
143. Protect mutable state with Swift actors iOS, macOS, tvOS, watchOS Sep 27
144. Qualities of a great Mac Catalyst app macOS Sep 29
145. Qualities of great iPad and iPhone apps on Macs with M1 iOS, macOS Sep 30
146. Reduce network delays for your app iOS, macOS, tvOS, watchOS Sep 30
147. Review code and collaborate in Xcode iOS, macOS, tvOS, watchOS Sep 30
148. SF Symbols in SwiftUI iOS, macOS, tvOS, watchOS Sep 30
149. SF Symbols in UIKit and AppKit iOS, macOS, tvOS Sep 30
150. Safeguard your accounts, promotions, and content iOS, macOS, tvOS, watchOS Sep 30
151. Secure login with iCloud Keychain verification codes iOS, macOS Oct 1
152. Send communication and Time Sensitive notifications iOS, macOS, watchOS Oct 2
153. Showcase app data in Spotlight iOS, macOS Oct 2
154. Simplify sign in for your tvOS apps tvOS Oct 2
155. Streamline your localized strings iOS, macOS, tvOS, watchOS Oct 2
156. Support Full Keyboard Access in our iOS app iOS Oct 2
157. Support customers and handle refunds iOS, macOS, tvOS, watchOS Oct 2
158. Swift concurrency: Behind the scenes iOS, macOS, tvOS, watchOS Oct 2
159. Swift concurrency: Update a sample app iOS, macOS, tvOS, watchOS Oct 3
160. Swift Accessibility: Beyond the basics iOS, macOS, tvOS, watchOS Oct 3
161. SwiftUI on the Mac: Build the fundamentals macOS Oct 3
162. SwiftUI on the Mac: The finishing touches macOS Oct 3
163. Symbolication: Beyond the basics iOS, macOS, tvOS, watchOS Oct 3
164. Sync files to the cloud with FileProvider on macOS macOS Oct 3
165. Tailor the VoiceOver experience in your data-rich apps iOS, macOS Oct 4
166. Take your iPad apps to the next level iOS Oct 4
167. Tap into virtual and physical game controllers iOS, macOS, tvOS Oct 4
168. The practice of inclusive design iOS, macOS, tvOS, watchOS Oct 4
169. The process of inclusive design iOS, macOS, tvOS, watchOS Oct 4
170. There and back again: Data transfer on Apple Watch watchOS Oct 4
171. Transition media gaplessly with HLS iOS, macOS, tvOS Oct 4
172. Triage TestFlight crashes in Xcode Organizer iOS, macOS, tvOS, watchOS Oct 4
173. Tune your Core ML models iOS, macOS, tvOS, watchOS Oct 5
174. Ultimate application performance survival guide iOS, macOS Oct 5
175. Understand and eliminate hangs from your app iOS, macOS Oct 5
176. Use Accelerate to improve performance and incorporate encrypted archives iOS, macOS, tvOS, watchOS Oct 5
177. Use async/await with URLSession iOS, macOS, tvOS, watchOS Oct 5
178. Use the camera for keyboard input in your app iOS Oct 5
179. WWDC21 Apple Design Awards iOS, macOS, tvOS, watchOS Oct 5
180. What’s n ew in AVKit iOS, macOS Oct 5
181. What’s new in App Analytics iOS, macOS, tvOS, watchOS Oct 5
182. What’s new in App Clips iOS Oct 5
183. What’s new in AppKit macOS Oct 5
184. What’s new in CloudKit iOS, macOS, tvOS, watchOS Oct 5
185. What’s new in Foundation iOS, macOS, tvOS, watchOS Oct 6
186. What’s new in Mac Catalyst macOS Oct 6
187. What’s new in SwiftUI iOS, macOS, tvOS, watchOS Oct 6
188. What’s new in UIKit iOS Oct 6
189. What’s new in Wallet and Apple Pay iOS, macOS, tvOS, watchOS Oct 6
190. What’s new in watchOS 8 watchOS Oct 6
191. What’s new in Swift iOS, macOS, tvOS, watchOS Oct 6
192. What’s new in AVFoundation iOS, macOS, tvOS, watchOS Oct 6
193. What’s new in Game Center: Widgets, friends, and multiplayer improvements iOS, macOS, tvOS Oct 6
194. What’s new in SF Symbols iOS, macOS, tvOS, watchOS Oct 6
195. What’s n ewe in camera capture iOS, macOS Oct 7
196. What’s new in managing Apple devices iOS, macOS Oct 7
197. Write a DSL in Swift using result builders iOS, macOS, tvOS, watchOS Oct 7
198. Your guide to keyboard layout iOS Oct 7

References

• WWDC 21

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One-on-One Support from Apple

WWDC2020 was launched this week. In the past, WWDC conferences were all held in US. This year, because of COVID19 and social distance rules，WWDC is the first time on virtual web. The greatest news is that all Apple registered developers are all able to attend the WWDC without paying expensive registration, travel and hotel fees. This is first time Apple trying virtual WWDC.

On the first day, I watched the keynote speech yesterday. From my personal option, I think the virtual meeting is organized much more efficient and smooth, when transfering from one person to another. This can be done without any delay.

I watched Sean Allen's Swift News on YouTube. Among many topics about WWDC，he mentioned One-on-one Labs support, which was only available on site at WWDC. Now everything is on virtual. I quickly searched from Apple Developer's web page. It is true that one-on-one support is available on request. I made my request. I have been struggling on one UI issue for quite long time and still could not figure out any good solution. Within seconds, I got confirmation that my one-on-one support is scheduled tomorrow morning. That's awesome!

 


I have hight hope that I could get expert support directly from Apple to diagnose my issue and hope a solution would help to get the issue resolved.

Update on Jun 24 11MT: Just finished 1 on 1 labs support. I demonstrated my issue and showed what I have done in Xcode. The issue seems new to Apple support. He could not provide any solution and suggested me to submit a bug report on this issue.

The issue is that I have a screen with toolbar on bottom. There is one UIBarButton there. Most of time, the button shows normally. However, after a while, it would not visible when the screen brought up. I noticed that the issue is related to iPhone without physical Home button, ie, my Xr. The button still reacts to tap action even when it is invisible. It looks like that the button's tint color is as same as toolbar color, which causes button invisible.

References

• Apple Developer's Website: developer.apple.com
• Sean Allen's Swift News YouTube video：Swift News

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iOS 11 New Feature: Displaying Large Size Content

iOS 11 introduce many great features. One of them is display large size content, for example, text and images. With small size of mobile devices, for many people it is really hard to read small text or content. With this new feature in iOS 11, I want to support it in my app.

One new change is the large size title in navigation control. Another one is dynamic size for text views. PDF format for images is also great to avoid making various size of images in project.

There are two very good videos to watch as in the reference.

References

• WWDC 2017 video session 245: Building Apps with Dynamic Type
• WWDC 2017 video session 204: Updating Your App for iOS 11

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WWDC 2017 Vedios

WWDC 2017 is over (Jun 5-9, 2017). As I did in the past years, I finally finished watching all videos of WWDC 2017 provided by Apple. There are 136 videos (49+19+15+5+4+10+15+19), each ranging from 10 minutes to over 2 hours, most around 30+ minutes. So I guess the total length of the video is about 70 hours.

Here is the list of videos I watched:

WWDC 2017

Platforms State of the Union - 102
Introducing Core ML - 703
Introducing ARKit: Augmented Reality for iOS - 602
Introducing Metal 2 - 601
Introducing Drag and Drop - 203
What's New in Swift - 402

App Frameworks

1. Advanced Animations with UIKit - 230
2. Advanced Touch Bar - session 222
3. Advances in TVMLKit - 202
4. Build Better Apps with CloudKit Dashboard - 226
5. Building Apps with Dynamic Type - 245
6. Building Great Document-based Apps in iOS 11 - 229
7. Building Visually Rich User Experiences - 235
8. Choosing the Right Cocoa Container View - 218
9. Cocoa Development Tips - 236
10. Connecting CareKit to the Cloud - 239
11. Customized Loading in WKWebView - 220
12. Data Delivery with Drag and Drop - 227
13. Deep Linking on tvOS - 246
14. Drag and Drop with Collection and Table View - 223
15. Efficient Interactions with Frameworks - 244
16. Extend Your App's Presence With Sharing - 247
17. Extend Your App’s Presence with Deep Linking - 250
18. File Provider Enhancements - 243
19. Filtering Unwanted Messages with Identity Lookup - 249
20. Focus Interaction in tvOS 11 - 224
21. Introducing Business Chat - 240
22. Introducing PDFKit on iOS - 241
23. Introducing Password AutoFill for Apps - 206
24. Localization Best Practices on tvOS - 248
25. Making Great SiriKit Experiences - 228
26. Mastering Drag and Drop - 213
27. Media and Gaming Accessibility - 217
28. Modern User Interaction on iOS - 219
29. Natural Language Processing and your Apps - 208
30. Now Playing and Remote Commands on tvOS - 251
31. The Keys to a Better Text Input Experience - 242
32. The Life of a watchOS App - 216
33. Touch Bar Fundamentals - 211
34. Updating Your App for iOS 11 - 204
35. What's New in Accessibility - 215
36. What's New in CareKit and ResearchKit - 232
37. What's New in Cocoa - 207
38. What's New in Cocoa Touch - 201
39. What's New in Core Data 210
40. What's New in Core Spotlight for iOS and macOS - 231
41. What's New in Foundation - 212
42. What's New in Health - 221
43. What's New in MapKit - 237
44. What's New in Safari View Controller - 225
45. What's New in SiriKit - 214
46. What's New in iMessage Apps - 234
47. What's New in tvOS - 209
48. What's New in watchOS 205
49. Writing Energy Efficient Apps - 238

Design

1. 60 Second Prototyping - 818
2. App Icon Design - 822
3. Communication Between Designers and Engineers - 809
4. Design Tips for Great Games - 811
5. Designing Across Platforms - 804
6. Designing Glyphs - 823
7. Designing Sound - 803
8. Designing for Subscription Success - 814
9. Designing for a Global Audience - 819
10. Essential Design Principles - 802
11. Express Yourself! - 820
12. Get Started with Display P3 - 821
13. How to Pick a Custom Font - 815
14. Love at First Launch - 816
15. Planning a Great Apple Watch Experience - 808
16. Rich Notifications - 817
17. Size Classes and Core Components - 812
18. What’s New in iOS 11 - 810
19. Writing Great Alerts - 813

Developer Tools

1. App Startup Time: Past, Present, and Future - 413
2. Auto Layout Techniques in Interface Builder - 412 very nice on storyboard layout!
3. Debugging with Xcode 9 - 404
4. Engineering for Testability - 414
5. Finding Bugs Using Xcode Runtime Tools - 406
6. GitHub and the New Source Control Workflows in Xcode 9 - 405
7. Localizing Content for Swift Playgrounds - 410
8. Localizing with Xcode 9 - 401
9. Teaching with Swift Playgrounds - 416
10. Understanding Undefined Behavior - 407
11. What's New in LLVM - 411
12. What's New in Signing for Xcode and Xcode Server - 403
13. What's New in Swift - 402
14. What's New in Testing - 409
15. What’s New in Swift Playgrounds - 408

Distribution

1. Advanced StoreKit - 305
2. Introducing the New App Store - 301
3. What's New in Device Configuration, Deployment, and Management - 304
4. What's New in StoreKit - 303
5. What's New in iTunes Connect - 302

Featured

1. Convenience for You is Independence for Me - 110
2. From Monroe to NASA - 106 - NA yet
3. Platforms State of the Union - 102
4. WWDC 2017 Keynote - 101

Graphics and Games

1. From Art to Engine with Model I/O -610
2. Going Beyond 2D with SpriteKit - 609
3. Introducing ARKit: Augmented Reality for iOS - 602
4. Introducing Metal 2 - 601
5. Metal 2 Optimization and Debugging - 607
6. SceneKit in Swift Playgrounds - 605
7. SceneKit: What's New - 604
8. Using Metal 2 for Compute - 608
9. VR with Metal 2 - 603
10. What's New with Screen Recording and Live Broadcast - 606

Media

1. Advances in Core Image: Filters, Metal, Vision, and More -510
2. Advances in HTTP Live Streaming - 504
3. Apple Podcasts - 512
4. Capturing Depth in iPhone Photography - 507
5. Error Handling Best Practices for HTTP Live Streaming - 514
6. HLS Authoring Update - 515
7. High Efficiency Image File Format - 513
8. Image Editing with Depth - 508
9. Introducing AirPlay 2 - 509
10. Introducing HEIF and HEVC - 503
11. Introducing MusicKit - 502
12. Vision Framework: Building on Core ML - 506
13. What's New in Audio - 501
14. What's New in Photos APIs - 505
15. Working with HEIF and HEVC - 511

System Framework

1. Accelerate and Sparse Solvers - 711
2. Advances in Networking, Part 1 - 707
3. Advances in Networking, Part 2 - 709
4. Best Practices and What’s New in User Notifications - 708
5. Core ML in depth - 710
6. Creating Immersive Apps with Core Motion - 704
7. Developing Wireless CarPlay Systems - 717
8. Enabling Your App for CarPlay - 719
9. Introducing Core ML - 703
10. Introducing Core NFC - 718
11. Modernizing Grand Central Dispatch Usage -706
12. Privacy and Your Apps - 702
13. What's New in Apple Pay & Wallet - 714
14. What's New in Core Bluetooth - 712
15. What's New in HomeKit - 705
16. What's New in Location Technologies - 713
17. What's new in Apple File System - 715
18. Your Apps and Evolving Network Security Standards - 701
19. iOS Configuration and APIs for Kiosk and Assessment Apps - 716

References

• WWDC 2017 Videos

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Learn Newest iOS and OS from WWDC 2015

WWDC 2015 had been hold at Los Angeles, from Jun 08 to 12. I was on vacation hin China during the time.  I started to watch videos when I got the news. This is the great opportunity to get in-depth information about Apple's iOS and OS updates.

I remember that I watched the videos from iTunes University in the past. Since last year, all WWDC videos are available from Web. That is, you can watch videos from web browsers. This year, Apple keeps the same way to provide videos. I like this very much. The following are snapshots of all the videos:










My first impression of WWDC 2015 is that Apple is more open than before. In the past, only keynotes are displayed with audio talk. This time, all the presenters are also visible as they were on stage.

This year I have more time available to watch videos since no more contact work for the time being. I had to watch them during my lunch and evening times after work. I list all the videos I watched in the following table.

My Learning Progress

The first part are Featured Videos on Apple's web site. I watched them first. All those are also listed in the following sections.

No.

Videos

Sections

1

Platforms State of the Union

Featured

2

Introducing WatchKit for watchOS 2

^

3

What's New in Swift

^

4

What's New in Xcode

^

5

Designing for Apple Watch

^

6

Introducing Search APIs

^

7

Designing for Future Hardware

^

8

Optimizing Your App for Multitasking on iPad in iOS 9

^

9

Think Audacious

^

10

Introducing the New System Fonts

^

11

Designing for Future Hardware

^

12

What's New in Managing Apple Devices

^

1-1

Adopting New Trackpad Features

App Frameworks

2-2

Advanced NSOperations

^

3-3

Advanced Touch Input on iOS

^

4-4

App Extension Best Practices

^

5-5

Apple Watch Accessibility

^

6-6

Best Practices for Progress Reporting

^

7-7

Building Apps with ResearchKit

^

8-8

Building Document Based Apps

^

9-9

Cocoa Touch Best Practices

^

10-10

Creating Complications with ClockKit

^

11-11

Getting Started with Multitasking on iPad in iOS 9

^

12-12

Improving the Full Screen Window Experience

^

13-13

Introducing On Demand Resources

^

14-14

Introducing Safari View Controller

^

15-15

Introducing the Contacts Framework for iOS and OS X

^

16-16

Layout and Animation Techniques for WatchKit

^

17-17

Multitasking Essentials for Media-Based Apps on iPad in iOS 9

^

18-18

Mysteries of Auto Layout, Part 1

^

19-19

Mysteries of Auto Layout, Part 2

^

20-20

New UIKit Support for International User Interfaces

^

21-21

Optimizing Your App for Multitasking on iPad in iOS 9

^

22-22

Performance on iOS and watchOS

^

23-23

Seamless Linking to Your App

^

24-24

WatchKit In-Depth, Part 1

^

25-25

WatchKit In-Depth, Part 2

^

26-26

WatchKit Tips and Tricks

^

27-27

What's New in Cocoa

^

28-28

What's New in Core Data

^

29-29

What's New in HealthKit

^

30-30

What's New in HomeKit

^

31-31

What's New in Internationalization

^

32-32

What's New in MapKit

^

33-33

What's New in NSCollectionView

^

34-34

What's New in UIKit Dynamics and Visual Effects

^

35-35

iOS Accessibility

^

36-1

Apple Watch Design Tips and Tricks

Design

37-2

Designing for Apple Watch

^

38-3

Designing for Future Hardware

^

39-4

Designing with Animation

^

40-5

Introducing the New System Fonts

^

41-1

Advanced Debugging and the Address Sanitizer

Developer Tools

42-2

App Thinning in Xcode

^

43-3

Authoring Rich Playgrounds

^

Date:

Junly 10, 2015 (My progress）

44-4

Building Better Apps with Value Types in Swift

^

45-5

Continuous Integration and Code Coverage in Xcode

^

46-6

Improving Your Existing Apps with Swift

^

47-7

Optimizing Swift Performance

^

48-8

Profiling in Depth

^

49-9

Protocol-Oriented Programming in Swift

^

50-10

Swift and Objective-C Interoperability

^

51-11

Swift in Practice

^

52-12

UI Testing in Xcode

^

53-13

What's New in LLDB

^

54-1

Getting the Most out of App Analytics

Distribution

55-2

Supporting the Enterprise with OS X Automation

^

56-3

What's New in Managing Apple Devices

^

57-4

What's New in iTunes Connect

^

58-5

iTunes Connect: Development to Distribution

^

59-1

Apple Design Awards

Featured

60-2

Building Watch Apps

^

61-3

Introducing WatchKit for watchOS 2

^

62-4

Keynote

^

63-5

Platforms State of the Union

^

64-6

Think Audacious

^

65-7

What's New in Cocoa Touch

^

Date:

July 16, 2015 (My Progress）

66-8

What's New in Swift

^

67-9

What's New in Xcode

^

68-1

Deeper into GameplayKit with DemoBots

Graphics and Games

69-2

Enhancements to SceneKit

^

70-3

Going Social with ReplayKit and Game Center

^

71-4

Introducing GameplayKit

^

72-5

Managing 3D Assets with Model I/O

^

73-6

Metal Performance Optimization Techniques

^

74-7

What's New in Metal, Part 1

^

75-8

What's New in Metal, Part 2

^

76-9

What's New in SpriteKit

^

77-1

Audio Unit Extensions

Media

Date:

July 22, 2015 (My Progress）

78-2

Content Protection for HTTP Live Streaming

^

79-3

Editing Movies in AV Foundation

^

80-4

Monetize and Promote Your App with iAd

^

81-5

Safari Extensibility: Content Blocking and Shared Links

^

82-6

Using Safari to Deliver and Debug a Responsive Web Design

^

83-7

What's New in Core Audio

^

84-8

What's New in Core Image

^

85-9

What's New in Web Development in WebKit and Safari

^

86-1

Achieving All-day Battery Life

System Frameworks

87-2

Apple Pay Within Apps

^

88-3

Building Responsive and Efficient Apps with GCD

^

89-4

CloudKit JS and Web Services

^

90-5

CloudKit Tips and Tricks

^

91-6

Debugging Energy Issues

^

92-7

Introducing Search APIs

^

93-8

Introducing Watch Connectivity

^

94-9

Low Energy, High Performance: Compression and Accelerate

^

95-10

Networking with NSURLSession

^

96-11

Privacy and Your App

^

97-12

Security and Your Apps

^

98-13

Wallet - The home for Apple Pay and more

^

99-14

What's New in CloudKit

^

100-15

What's New in Core Location

^

Date:

July 27, 2015 (My Progress）

101-16

What's New in Core Motion

^

102-17

What's New in Network Extension and VPN

^

103-18

What's New in Notifications

^

104-19

Your App and Next Generation Networks

^

Date:

July 27, 2015 (My Progress）

References

• Apple/s WWDC 2015：Videos

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WWDC 2013

Apple Worldwide Developers Conference, WWDC, 2013 was held from June 10-14 at San Francisco. It has been over already for 2 weeks. This time, the session videos of technical talks was available right on the second day of the conference. The first time, all the talks are available directly from web browser. I started learning and watching all the shows. This saves my time to download shows and disk spaces as well.

The convenience of on-line shows is that it will automatically adjust video quality depending on demands. I don't need to get HD in order to watch the clear videos. There is additional option to get HD, SD and PDF. Since what I need to get the content, I have not bothered to do any downloading.

References

• Apple WWDC web page
• To keep my learning progress, I have summarized all the shows I watched in the following table: My learning progress.

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Finished Watching WWDC2012 Videos

Today I finished watching all available WWDC 2012 videos. There 111 video talk shows. I downloaded them in SD format, which are good enough. To view outlines, I found that I can go to HD area to get PDF files. In this way, I can separate videos from PDF files.

WWDC 2012 shows in iTunes grouped in serials. I started from 400 serial, Developer Tools, with 14 shows. Then 700 serial, Core OS, has 14 shows. 200 serial has 42 shows, which is the largest group. Next is 500, with 24 shows in Graphics , Media and Games. 300 serial is for App services, with 11 shows. The last serial, 600, has 6 shows.

I took some notes in Chinese for the first two serials. I cannot keep taking notes for all of the shows.

Reference

• iTunes URL link：Developer on iTunes > WWDC2-12 Sessions(with HD and SD vedios)

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WWDC 2012 Videos Available Now

Today I got news about WWDC 2012 Videos available from Apple's Development site from Weibo. I will be busy to watch all those training videos. The following is the snapshot of iTunes.



Today I only downloaded the first section: Developer Tools with total 28 tracks (14 videos and 14 PDF  slides). HDs are nice but they take too much space and download bandwidth. I only got SD instead, good enough for my, and much quick and less space.

Reference

• WWDC 2012

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iOS 6 coming in WWDC 2012

According to the news from AppleInsider, iOS will be announced at WWDC 2012. This is really a welcome news. I have witnessed the evolution of iOS from it start. iOS was really good change with many improvements. For example, I like the storyboard very much. The storyboard makes the development much easy in terms of overall UI layout and workflow.



I guess there will be many great new changes in iOS 6.0. What I want the most is the generic template. It seems to me that I cannot define a generic protocol with generic in iOS or Objective-C, something like:

@protocol myAbstractInterface : NSObject <T>
- (void) methodA<T1>:(T1*) parameter1;
@end

where myAbstractInterface is a template, T and T1 are a generic data types.

Currently, I have use concrete class types for T and T1. I hope Apple would make this feature available so that it makes true OO design much easier. Apple iOS architecture designers may have their own reason not to implement generics in this way, or they may introduce generics with difference strategies, or more efficient and elegant framework.

I'll keep close eye on the coming WWDC in just about 2 days.

References

• AppleInsider: WWDC 2012 Banners depict iOS 6...

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Finished Watching WWDC 2011 Videos

Today I finished watching all the WWDC 2011 videos. I spent most of after-work hours to watch those shows. It is good to get an overall view of all the technologies used in iOS 5, even some I may not use at all and some are hard to digest.

I also started to write my notes in Chinese about WWDC 2011 shows. However, the notes are far more behind my watching schedule. I could not keep up my notes with my watching progress, and eventually I decided to left go behind. Right now my notes are close to the end of 100 serials. They are still 200, 400 and 500 serials to be written. I think it is good review when I write notes, and I'll keep it up to the end.

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Finished Watching WWDC 2011 Videos in -Halfway

In the past weeks, I have been in a fast-paced way to watch WWDC 2011 videos. Right now I have finished 100(App Frameworks), and 300(Developer Tools) serials. Still three sections left: 200(Core OS, 13), 400(Graphics, Media and Games, 24), and 500(Internet and Web, 19).

I have also made some nodes in my Chinese blogs about WWDC 2011.

WWDC exposed more detail changes in iOS and Mac OS with new framework and APIs. For example, full screen feature is a very nice thought designed bases on iOS. Windows have full screen since its start, Windows 3.0. However, Mac OS full screen has more support from its core internal. App's will receive many events such as willXXX and didXXX for full screen status. With those events, app developer can prepare UI for better user experience and usage. In terms of OS, the full screen has consistency UI for full screen such as enter, exist and keyboard shortcuts. Full screen apps flow fluently in Mac OS.

Another group of great features are auto-save and versions. Those features are backed by app with Cocoa new APIs. Basically, this is a repository for software source codes, but it has been expanded to Mac OS app. It will be up to app developer to implement the feature. Save and versions are integrate part of Mac OS. As one of Apple software engineering in one session about this topic said, what is if further of Mac OS Cocoa? It may be the long time Quit will be gone. Users will not need to take care apps in Mac OS. Since everything will be auto-saved, why should apps with those features stay in OS when they are not in use? This will greatly enhance the experience of using Mac with great resources releases by inactive apps.

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WWDC 2011 Videos Available for Apple Developers

According to the news from AppleInsider, Apple released all the WWDC videos for Apple Mac OS and iOS developers. I went to the Apple Devleoper site and I started to download videos right away. There are about 110 videos in various categories. Based on OS X and iOS there are 155 contents.

The following image is one I used in my Chinese blog at creaders.net.



I have been anxiously expecting for those session videos for a while. Now I will be very busy to watch those videos, evenings and weekends. Last year I took months to finish all of WWDC 2010 videos, and I enjoyed watch them very much. Apple's OS and iOS technology are really very impressive.

References

• Apple Developers Web Site：Videos, including WWDC 2010 and 2011


• AppleInsider:
  Apple makes WWDC 2011 session videos available to developers via iTunes


• My Chinese blog on creaders.net: 苹果对软件开发人员开放WWDC 2011讲座视频

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