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“A Summary of the WWDC25 Group Lab”

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macOS App Groups / transition to profile based groups
Hi, I have a macOS app distributed through the App Store that uses an app group to share data with app extensions. The group identifier has the form: .group. In Xcode 26 I am now asked to convert the project to profile based app groups (like on iOS). My question is: Can I convert the project to profile based app groups and will the existing app group (which is prefixed with the Team ID) continue to work (and will exiting users still be able to access their data). If yes, should I add the app group with or without the Team ID prefix to the profile.
3
0
207
Oct ’25
Relevance Score is ignored when displaying in Notification Summary
Based off the Apple documentation, I expected to see that the notification with the highest relevance score was featured in the Notification Summary. However, when sending several notifications from a single app with the new relevance score field, I am consistently seeing the most recent notification be featured in the Summary — not the one with the highest score. I am using Xcode 13 beta 5 and a device running iOS 15 beta 6. This is the sample payload sent via APNs (with the relevance score being updated between sends): { aps: { alert: { title: Relevance score: 0.4, body: body text here. }, interruption-level : active, relevance-score : 0.4 } } I have also confirmed that the UNNotificationContent object has the relevance score field populated with the expected double when receiving the push on the device.
3
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1.7k
Aug ’21
Apple Intelligence / Mac Mail : Summaries Unavailable
At one point, Mac Mail's apple added a summarize functionality that worked. Now when I click on Summarize, I get: Summaries Unavailable Mail summarization is unavailable at this time. Try again later. I've rebooted, stopped/restarted Apple AI, waited a day to see if it was synching up things, etc. I'm running the latest version of Apple OS (Version 15.1 (24B82)). any ideas?
2
0
1.3k
Oct ’24
Vision Pro Developer Lab registration rejected, but why?
After a few days of excitement waiting, I was very disappointed to receive the reply email without any explanation. Your registration request for Apple Vision Pro Developer Lab has not been approved at the moment. I saw on the internet that some people can pass the application just by taking screenshots of downloaded sample codes, while my serious developed application was rejected. Could someone please tell me the criteria for judging?
1
0
728
Aug ’23
Apple health data retrieval issue with summary
In Apple health I have the data for current day & my Application also connected with Apple Health. I gave all permissions regarding the health records. Some of the user the summary query is not getting executed & no data returned from the query. Most of the users are working fine. Background fetch is also enabled for Apple Health. The user is trying to sync the data in foreground. In crashlytics I got the error Protected health data is inaccessible. Can you please help me when this error may come.
0
0
794
Dec ’22
Filesystem Lab notes
Question: On Yosemite, there is an issue where FileVault 2 will report Encrypted Paused during the encryption process, then never resume. It won't decrypt, and the only fix seemed to be deleting the CoreStorage volume.Is there a fix for this besides deleting the CoreStorage volume? For example, how to unpause and either resume encryption or decrypt?Answer:The Encryption Paused issue was addressed in 10.10.3. The root cause was a problem with resizing the CoreStorage volume. When the CoreStorage volume was unable to grow, the encryption was paused and could not resume until the resize issue was addressed.To fix this issue:1. Update your Mac to 10.10.3, or boot from an alternate drive which is running 10.10.3.2. Un-lock the encrypted drive if necessary3. Open Terminal4. Run the following command to get your Mac's disk identifier:diskutil list5. Once you have the disk identifier information, run the following command:sudo fsck_cs -y disk_identifier_goes_here6. fsck_cs should repair the CoreStorage volume and add
6
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2.2k
Jun ’15
Subscriptions Group
If i create 2 Subscriptions (Auto Renewable) Group A and B on iTunes Connect for my app, and from app a specific user buys subscription from Group A, and after that user goes to Manage my Subscription in either iTunes on Mac or View his Apple ID from iPhone Settings Menu, Will he see other subscription options from Group A that he originally subscribed from or will he see Subscriptions options from Group B as well?
1
0
1.6k
Sep ’17
Reply to NavigationView scrolling broken when using TabView
Ok, changed it to struct ContentView: View { var body: some View { TabView{ Group{ List{ Text(Item 1) Text(Item 2) Text(Item 3) } } .tabItem { Image(systemName: list.dash) Text(Transactions) } Group{ List{ Text(Item 11) Text(Item 12) Text(Item 13) } } .tabItem { Image(systemName: list.dash) Text(Summary) } }.navigationTitle(Transactions) .navigationBarBackButtonHidden(true) } } and now it looks better but after switching to the other tab and back, its broken again (see clip below) https://imgur.com/a/BfiofU1
Topic: UI Frameworks SubTopic: SwiftUI Tags:
May ’22
Reply to Distributing a command-line binary executable?
Of course not, But I assume unsafe executables would be covered by the institution's code-of-conduct (similar to weight room, machine shop, chem lab, bio-hazzard lab, etc. rules). In any case, many schools periodically wipe all their lab and library computers.
Topic: Code Signing SubTopic: General Tags:
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Sep ’19
Reply to HealthKit heart rate zones
I've filled a feedback for this after WWDC 23 and 24. Here's the latest one FB13879424 This is really important. Let's 🙏 for WWDC25
Topic: UI Frameworks SubTopic: SwiftUI Tags:
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Apr ’25
macOS App Groups / transition to profile based groups
Hi, I have a macOS app distributed through the App Store that uses an app group to share data with app extensions. The group identifier has the form: .group. In Xcode 26 I am now asked to convert the project to profile based app groups (like on iOS). My question is: Can I convert the project to profile based app groups and will the existing app group (which is prefixed with the Team ID) continue to work (and will exiting users still be able to access their data). If yes, should I add the app group with or without the Team ID prefix to the profile.
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3
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0
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207
Activity
Oct ’25
How can I create an App Group without a "group." prefix?
I am embedding an Electron app within my main app for the macOS App Store. The electron component needs an app group that is named TEAMID.bundle-id But the web interface on developer.apple.com won't allow me to enter anything that isn't prefixed by group
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2
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0
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2.2k
Activity
Jul ’22
Reply to What is Mirror My Screen (WWDC) in Xcode 12 Beta?
This option is available for lab sessions, for developers to share their screen with Apple engineers in the lab.
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Jun ’20
Relevance Score is ignored when displaying in Notification Summary
Based off the Apple documentation, I expected to see that the notification with the highest relevance score was featured in the Notification Summary. However, when sending several notifications from a single app with the new relevance score field, I am consistently seeing the most recent notification be featured in the Summary — not the one with the highest score. I am using Xcode 13 beta 5 and a device running iOS 15 beta 6. This is the sample payload sent via APNs (with the relevance score being updated between sends): { aps: { alert: { title: Relevance score: 0.4, body: body text here. }, interruption-level : active, relevance-score : 0.4 } } I have also confirmed that the UNNotificationContent object has the relevance score field populated with the expected double when receiving the push on the device.
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3
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0
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1.7k
Activity
Aug ’21
Reply to SwiftData migration error: NSCloudKitMirroringDelegate are not reusable
Sadly there is not much change in SwiftData in WWDC25 while fatal issues like this one must be fixed as soon as possible. Just to allow SwiftData works normally.
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Aug ’25
Apple Intelligence / Mac Mail : Summaries Unavailable
At one point, Mac Mail's apple added a summarize functionality that worked. Now when I click on Summarize, I get: Summaries Unavailable Mail summarization is unavailable at this time. Try again later. I've rebooted, stopped/restarted Apple AI, waited a day to see if it was synching up things, etc. I'm running the latest version of Apple OS (Version 15.1 (24B82)). any ideas?
Replies
2
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0
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1.3k
Activity
Oct ’24
Summary app rating per country/region
Hello, I need to get reports of summary app rating per country or region. I see the data is available in app store connect UI: https://help.apple.com/app-store-connect/#/devd15088dd0 However, I can not find an api to automatically retrieve those statistics. Anyone can help me with this? Thanks in advance!
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0
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0
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2.1k
Activity
Dec ’22
Vision Pro Developer Lab registration rejected, but why?
After a few days of excitement waiting, I was very disappointed to receive the reply email without any explanation. Your registration request for Apple Vision Pro Developer Lab has not been approved at the moment. I saw on the internet that some people can pass the application just by taking screenshots of downloaded sample codes, while my serious developed application was rejected. Could someone please tell me the criteria for judging?
Replies
1
Boosts
0
Views
728
Activity
Aug ’23
Apple health data retrieval issue with summary
In Apple health I have the data for current day & my Application also connected with Apple Health. I gave all permissions regarding the health records. Some of the user the summary query is not getting executed & no data returned from the query. Most of the users are working fine. Background fetch is also enabled for Apple Health. The user is trying to sync the data in foreground. In crashlytics I got the error Protected health data is inaccessible. Can you please help me when this error may come.
Replies
0
Boosts
0
Views
794
Activity
Dec ’22
Reply to How to Start with Default Apple Maps Functionality in iOS 18+
If you haven’t already explored the Searching, displaying, and navigating to places sample code and the WWDC25 session: Go further with MapKit, those are excellent resources to help you get started.
Topic: UI Frameworks SubTopic: SwiftUI Tags:
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Aug ’25
Filesystem Lab notes
Question: On Yosemite, there is an issue where FileVault 2 will report Encrypted Paused during the encryption process, then never resume. It won't decrypt, and the only fix seemed to be deleting the CoreStorage volume.Is there a fix for this besides deleting the CoreStorage volume? For example, how to unpause and either resume encryption or decrypt?Answer:The Encryption Paused issue was addressed in 10.10.3. The root cause was a problem with resizing the CoreStorage volume. When the CoreStorage volume was unable to grow, the encryption was paused and could not resume until the resize issue was addressed.To fix this issue:1. Update your Mac to 10.10.3, or boot from an alternate drive which is running 10.10.3.2. Un-lock the encrypted drive if necessary3. Open Terminal4. Run the following command to get your Mac's disk identifier:diskutil list5. Once you have the disk identifier information, run the following command:sudo fsck_cs -y disk_identifier_goes_here6. fsck_cs should repair the CoreStorage volume and add
Replies
6
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0
Views
2.2k
Activity
Jun ’15
Subscriptions Group
If i create 2 Subscriptions (Auto Renewable) Group A and B on iTunes Connect for my app, and from app a specific user buys subscription from Group A, and after that user goes to Manage my Subscription in either iTunes on Mac or View his Apple ID from iPhone Settings Menu, Will he see other subscription options from Group A that he originally subscribed from or will he see Subscriptions options from Group B as well?
Replies
1
Boosts
0
Views
1.6k
Activity
Sep ’17
Reply to NavigationView scrolling broken when using TabView
Ok, changed it to struct ContentView: View { var body: some View { TabView{ Group{ List{ Text(Item 1) Text(Item 2) Text(Item 3) } } .tabItem { Image(systemName: list.dash) Text(Transactions) } Group{ List{ Text(Item 11) Text(Item 12) Text(Item 13) } } .tabItem { Image(systemName: list.dash) Text(Summary) } }.navigationTitle(Transactions) .navigationBarBackButtonHidden(true) } } and now it looks better but after switching to the other tab and back, its broken again (see clip below) https://imgur.com/a/BfiofU1
Topic: UI Frameworks SubTopic: SwiftUI Tags:
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Activity
May ’22