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“A Summary of the WWDC26 Group Lab”

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Difference between memory numbers on Summary tab vs Memory tab.
Hello, I have noticed when taking a GPU Capture on IOS that the texture memory numbers seen on the Summary Page is much higher than what I see when viewing the Memory tab. I have also found that when totaling the allocated size of all the textures in the Memory tab, it equals the numbers seen on the Summary page, but not in the Memory tab itself. I am curious as to which numbers I should be trusting when using this tool.
0
0
366
Aug ’21
About the new Apple Music Summary Streams Reports
https://help.apple.com/itc/contentreporterguide/?lang=en#/apd0b86cb176 In the page up above, it says Event report for a day consists of two parts, and each one must be downloaded separately. I interpreted it to mean that there are two types of Streams Reports: Summary - https://help.apple.com/itc/musicsalesandtrends/?lang=en#/itc8b8ced395 and Detailed. - https://help.apple.com/itc/musicsalesandtrends/?lang=en#/itc1f31430ac Isn't that wrong?
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355
Mar ’21
Reply to Is the ability to make in-app currency purchases of creator content a violation of app store rules?
Thank you for your question. During WWDC, you can take advantage of Labs, where Apple engineers, designers, and App Store experts can provide personalized guidance to your questions. Labs are available through the end of WWDC on June 9. Visit Apple Developer to learn more about eligibility and request an appointment. You will be able to talk to an App Review Specialist in the lab and they can answer your question.
Topic: App & System Services SubTopic: StoreKit Tags:
Jun ’23
Notes from Thursday Education and Enterprise Development Lab
Question:What does opendirectoryd's FDESupport module do?Answer:That's the module which is responsible for taking password updates from opendirectoryd and updating the FV 2 pre-boot login password. It's a helper utility.Question:Does fdesetup sync also help sync passwords from a directory service?Answer:No, it does not sync passwords. (Same message from both Security and Enterprise labs.)Question:Is there a way to run a deferred enablement, which also allows the enablement of a second account. For the purposes of the question, assume that the second account's password has been provided.Use cases that may apply:A. An enterprise that wants deferred enablement for the primary user of the machine, but also wants to enable the local admin account for FV 2.Answer:Please file enhancement requests. (Same message from both Security and Enterprise labs.)Question:When using fdesetup enable -inputplist the password is clear text in the plist. Can this be changed so that the password can be hashed? A col
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3.1k
Jun ’15
System Trace, Summary : System Calls no wall-clock time
XCode 13.4.1 Instrucment: System Trace. In Narrative, it show data with wall-clock time ,like 00:05.082.832 Called psynch_cvwait for 16.32 ms.. In Summary : System Calls it just summary cpu time of psynch_cvwait but no wall-clock time, but sometimes, I want to known the wall-clock time, and now I have to filter psynch_cvwait in Narrative , and add them manually. Is it possible to add sum of wall-clock time in Summary : System Calls ? Thanks
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0
1.1k
Jul ’22
App Library groupings
On the screen with the groupings of apps along with the app library how is it decided what to label the groupings? For example the British Airways app is listed in the store in the category Travel but is grouped in an area called lifestyle. How is iOS deciding how to group the apps and what to call that group?
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601
Jun ’20
Inconsistent grouping of notifications
I'm sending push notifications to a notification extension, and within the extension setting the threadIdentifier to be the same. But I'm observing inconsistent grouping behaviour, and behaviour that changes over time. The general iPhone settings are to display notifications as a Stack, and the app settings are to show on lock screen, notification center and banners and the notification grouping is set to by app (changing it to automatic doesn't affect the behaviour below). Pushes are displayed on the lock screen grouped together, then if the device is roused and the screen swiped down to reveal the notification center then they are still grouped. So far so good. If the iphone is active then the notifications appear at the top of the screen, one by one, but in this case if there is a swipe down to reveal the notification center then the notifications are not grouped when displayed, but shown individually. But then if one waits a few minutes and then displays the no
1
0
160
Mar ’25
Xcode 9 App Development with Swift labs not working
I’m fairly new to Swift and have been moving through the App Development with Swift lessons after completing Intro to App Development with Swift and reached lessons 4.6 intermediate Table Views just fine. 2 days ago when loading the labs for the lesson, the playground formatting seemed to be off as everything was commented out (/*) when loading, Import Foundation which should be at the start of the form now appears somewhere in the middle. This resulted in me being unable to navigate the lab’s (next/previous), basically not usable.Performed a clean install of MacOS Heigh Sierra on MacBook Pro 2016, reloaded Xcode 9 and downloaded a new copy of the Students Resources but the behaviour stays the same.Is anyone else experiencing this behaviour or know what could be causing it?
3
0
1.2k
Nov ’17
App Groups on macOS, 'Register App Groups' Code Signing Problems
So I just updated Xcode to 16.3 and updated a project to its recommended build settings which includes Register App Groups. So I have an outside Mac App Store app that uses app groups. Here we have an action extension. I can't debug it, can't get it to run. Nothing useful in Xcode is displayed when I try... but it looks like a code signing issue when I run and have Console open. So I try to make a provisioning profile manually and set it...didn't work. I noticed now though in signing & capabilities the group id is in red...like it's invalid, or something? This was a macOS styled group without the group. prefix. So am I supposed to switch it to have the group. prefix? It makes the red text go away (no warnings or anything about app groups here, just red text). So if I change it to group. prefix..does that make an entire new container?What happens on app update for installs that don't have group. prefix? Does the system transpa
5
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256
May ’25
Xcode Playgrounds causes full system hang when running labs
Currently, I am trying to learn how to program within Xcode. I have been reading the App Development with Swift book, and as such have been trying to use the labs within the book, to help with my understanding of the Swift programming language. However, whenever I try to open one of these labs, my computer screen starts to flicker, with sections of it going black for a second or two. Following this, all of the screen, except the mouse, will freeze completely. The clock freezes, every app freezes, and it will even stop midway through changing desktops. Sometimes, it will freeze indefinitely, and sometimes it will resume after half an hour if not more. I have had to force restart my computer several times as a result of the freezing.However, it only happens whenever I open the labs. Nothing else will cause this, and if I quit Xcode before it freezes, everything will go back to normal, so I’m relatively confident it’s not a hardware issue.I have deleted the labs, and then rein
3
0
1.6k
Sep ’18
Reply to SwiftUI Pull to Refresh Support
I have had success with the following native implementation from SwiftUI Lab: https://gist.github.com/swiftui-lab/3de557a513fbdb2d8fced41e40347e01 A few modifications had to be made including changes to use the new ProgressView etc.
Topic: UI Frameworks SubTopic: SwiftUI Tags:
Aug ’20
How do I group new users?
How do i group new sign up's by seller and buyer in parse.?and each group will be able to see different views.?
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0
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86
Activity
Dec ’15
Difference between memory numbers on Summary tab vs Memory tab.
Hello, I have noticed when taking a GPU Capture on IOS that the texture memory numbers seen on the Summary Page is much higher than what I see when viewing the Memory tab. I have also found that when totaling the allocated size of all the textures in the Memory tab, it equals the numbers seen on the Summary page, but not in the Memory tab itself. I am curious as to which numbers I should be trusting when using this tool.
Replies
0
Boosts
0
Views
366
Activity
Aug ’21
About the new Apple Music Summary Streams Reports
https://help.apple.com/itc/contentreporterguide/?lang=en#/apd0b86cb176 In the page up above, it says Event report for a day consists of two parts, and each one must be downloaded separately. I interpreted it to mean that there are two types of Streams Reports: Summary - https://help.apple.com/itc/musicsalesandtrends/?lang=en#/itc8b8ced395 and Detailed. - https://help.apple.com/itc/musicsalesandtrends/?lang=en#/itc1f31430ac Isn't that wrong?
Replies
0
Boosts
0
Views
355
Activity
Mar ’21
Reply to Is the ability to make in-app currency purchases of creator content a violation of app store rules?
Thank you for your question. During WWDC, you can take advantage of Labs, where Apple engineers, designers, and App Store experts can provide personalized guidance to your questions. Labs are available through the end of WWDC on June 9. Visit Apple Developer to learn more about eligibility and request an appointment. You will be able to talk to an App Review Specialist in the lab and they can answer your question.
Topic: App & System Services SubTopic: StoreKit Tags:
Replies
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Views
Activity
Jun ’23
Notes from Thursday Education and Enterprise Development Lab
Question:What does opendirectoryd's FDESupport module do?Answer:That's the module which is responsible for taking password updates from opendirectoryd and updating the FV 2 pre-boot login password. It's a helper utility.Question:Does fdesetup sync also help sync passwords from a directory service?Answer:No, it does not sync passwords. (Same message from both Security and Enterprise labs.)Question:Is there a way to run a deferred enablement, which also allows the enablement of a second account. For the purposes of the question, assume that the second account's password has been provided.Use cases that may apply:A. An enterprise that wants deferred enablement for the primary user of the machine, but also wants to enable the local admin account for FV 2.Answer:Please file enhancement requests. (Same message from both Security and Enterprise labs.)Question:When using fdesetup enable -inputplist the password is clear text in the plist. Can this be changed so that the password can be hashed? A col
Replies
2
Boosts
0
Views
3.1k
Activity
Jun ’15
System Trace, Summary : System Calls no wall-clock time
XCode 13.4.1 Instrucment: System Trace. In Narrative, it show data with wall-clock time ,like 00:05.082.832 Called psynch_cvwait for 16.32 ms.. In Summary : System Calls it just summary cpu time of psynch_cvwait but no wall-clock time, but sometimes, I want to known the wall-clock time, and now I have to filter psynch_cvwait in Narrative , and add them manually. Is it possible to add sum of wall-clock time in Summary : System Calls ? Thanks
Replies
1
Boosts
0
Views
1.1k
Activity
Jul ’22
App Library groupings
On the screen with the groupings of apps along with the app library how is it decided what to label the groupings? For example the British Airways app is listed in the store in the category Travel but is grouped in an area called lifestyle. How is iOS deciding how to group the apps and what to call that group?
Replies
1
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0
Views
601
Activity
Jun ’20
In-App Purchases groups
Is it possible to move auto-renewable subscriptions products from a group to another group without changing product id?
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0
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0
Views
640
Activity
Sep ’16
Inconsistent grouping of notifications
I'm sending push notifications to a notification extension, and within the extension setting the threadIdentifier to be the same. But I'm observing inconsistent grouping behaviour, and behaviour that changes over time. The general iPhone settings are to display notifications as a Stack, and the app settings are to show on lock screen, notification center and banners and the notification grouping is set to by app (changing it to automatic doesn't affect the behaviour below). Pushes are displayed on the lock screen grouped together, then if the device is roused and the screen swiped down to reveal the notification center then they are still grouped. So far so good. If the iphone is active then the notifications appear at the top of the screen, one by one, but in this case if there is a swipe down to reveal the notification center then the notifications are not grouped when displayed, but shown individually. But then if one waits a few minutes and then displays the no
Replies
1
Boosts
0
Views
160
Activity
Mar ’25
Xcode 9 App Development with Swift labs not working
I’m fairly new to Swift and have been moving through the App Development with Swift lessons after completing Intro to App Development with Swift and reached lessons 4.6 intermediate Table Views just fine. 2 days ago when loading the labs for the lesson, the playground formatting seemed to be off as everything was commented out (/*) when loading, Import Foundation which should be at the start of the form now appears somewhere in the middle. This resulted in me being unable to navigate the lab’s (next/previous), basically not usable.Performed a clean install of MacOS Heigh Sierra on MacBook Pro 2016, reloaded Xcode 9 and downloaded a new copy of the Students Resources but the behaviour stays the same.Is anyone else experiencing this behaviour or know what could be causing it?
Replies
3
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0
Views
1.2k
Activity
Nov ’17
Reply to How to get on the front page of the visionOS App Store?
I'm curious, why don't you book a WWDC lab for that question and other related ones you may have? Perhaps App Store business and marketing consultation is the lab you're looking for.
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Jun ’24
App Groups on macOS, 'Register App Groups' Code Signing Problems
So I just updated Xcode to 16.3 and updated a project to its recommended build settings which includes Register App Groups. So I have an outside Mac App Store app that uses app groups. Here we have an action extension. I can't debug it, can't get it to run. Nothing useful in Xcode is displayed when I try... but it looks like a code signing issue when I run and have Console open. So I try to make a provisioning profile manually and set it...didn't work. I noticed now though in signing & capabilities the group id is in red...like it's invalid, or something? This was a macOS styled group without the group. prefix. So am I supposed to switch it to have the group. prefix? It makes the red text go away (no warnings or anything about app groups here, just red text). So if I change it to group. prefix..does that make an entire new container?What happens on app update for installs that don't have group. prefix? Does the system transpa
Replies
5
Boosts
0
Views
256
Activity
May ’25
Xcode Playgrounds causes full system hang when running labs
Currently, I am trying to learn how to program within Xcode. I have been reading the App Development with Swift book, and as such have been trying to use the labs within the book, to help with my understanding of the Swift programming language. However, whenever I try to open one of these labs, my computer screen starts to flicker, with sections of it going black for a second or two. Following this, all of the screen, except the mouse, will freeze completely. The clock freezes, every app freezes, and it will even stop midway through changing desktops. Sometimes, it will freeze indefinitely, and sometimes it will resume after half an hour if not more. I have had to force restart my computer several times as a result of the freezing.However, it only happens whenever I open the labs. Nothing else will cause this, and if I quit Xcode before it freezes, everything will go back to normal, so I’m relatively confident it’s not a hardware issue.I have deleted the labs, and then rein
Replies
3
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0
Views
1.6k
Activity
Sep ’18
Reply to Regarding the camera API support available for developer accounts in the enterprise version
I just checked a WWDC26 video titled Explore enhancements to visionOS object tracking, which shows images obtained for vision Pro around 10:28. How can I obtain this? Is it possible? (https://developer.apple.com/videos/play/wwdc2026/283/)
Topic: Spatial Computing SubTopic: ARKit Tags:
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2w
Reply to SwiftUI Pull to Refresh Support
I have had success with the following native implementation from SwiftUI Lab: https://gist.github.com/swiftui-lab/3de557a513fbdb2d8fced41e40347e01 A few modifications had to be made including changes to use the new ProgressView etc.
Topic: UI Frameworks SubTopic: SwiftUI Tags:
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Activity
Aug ’20