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“A Summary of the WWDC25 Group Lab”

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CoreData and Group By
Hi Folks, Sorry I am sure this has been asked before - Beginner level programmer trying to get my head round something I am sure is simple. I know coredata is not a Relational database but please go easy!! I have data my app is storing as people respond to the 'game' a 'session' guid (runNumber) , and if they hit the correct button or not (correctAnswer). I want to group the responses by the guid and sum the 'correct' answers. I think I am pulling the data correctly: @Environment(.managedObjectContext) private var viewContext @FetchRequest( entity: CoreScore.entity(), sortDescriptors: [ NSSortDescriptor(keyPath: CoreScore.runNumber, ascending: false) ] ) var corescores: FetchedResults But my view List(corescores, id: .self) { corescore in Text(corescore.runNumber ?? Unknown) Text(corescore.correctAnswer ?? Unknown) } Shows all the individual responses... How do I group them by runNumber?
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0
320
Jan ’21
Wednesday Security Lab Notes
Question:In the session yesterday, it was mentioned that Gatekeeper's app relocation moved the app on an unsigned disk image to a randomized place on the filesystem. How does this work?Answer:When the app with the unsigned dependencies is launched, Gatekeeper makes a synthetic instance of the app at a randomized location elsewhere in the filesystem. The synthesized instance of the app is what is actually being launched.The synthesized instance is by itself in this new location, so it's unable to access the unsigned code / library / script, etc when it launches.The synthesized instance is not a copy of the app. Overall behavior is similar to nullfs on BSD, or using bind mounts on Linux.Question:Are there any new features in System Integrity Protection on Sierra, or will the functionality be the same as in El Capitan? If there are new features, what are they?Answer:Same functionality as in El Capitan.Question:Are there new restrictions in System Integrity Protection on Sierra, or do the restrictions currently m
1
0
1.8k
Jun ’16
Cannot remove testing group from build/Groups auto adding to build
Hi, I would like to rollout our builds to a subset of our internal testers (the devs) before we roll it out to the rest (QA, product managers). After submitting the compliance on a build, both of my internal testing groups are automatically added to the build. I thought I would get to choose which group at add myself. To make matters worse, there doesn't appear to be any way to remove a testing group from a build, despite what the documentation says: As you can see, my pointer is over the group, but no Delete button exists Help! -Ethan
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2.6k
Mar ’23
Switching subscription groups
I have an app where fans can subscribe to multiple content creators and this is implemented using a sub group for each creator. I want to add a new all access subscription that gets them access to everything. We are treating this as an upgrade from the individual sub. Is there a way to cancel (or swap) the individual sub when they subscribe to the bundled sub? I know within a sub group it is possible to go between sub levels, but not sure about across sub groups.
0
0
493
Apr ’24
Group Apps
Since I have upgraded to IOS 14.2 on my iphone7. On several occasions I have found that I am unable to open my apps that I have grouped together. When I touch the screen the apps acknowledge that I selected it but it does nothing after that.
0
0
290
Dec ’20
Make a Group of wallets
Hello Apple Cummunityis there any functionality available in iOS that allows to group the Wallets with the same type (e.g. passTypeIdentifier) in the Wallet App? So the user would see in the Wallet App a group of the same type of Wallets.Thanks in advance.Kind regardsDennis
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0
1.2k
Mar ’17
How to Group UI aspects?
I'm new to programming on XCode and I'm currently messing with the UI trying to setup the program similar to a worksheet I have in real life. The worksheet has several boxes around the paper that are grouped so that statistics can be recorded and found easily. I would love to have my program look more like this, with grouped sets of statistics, but I've no idea how to do it. I would like to have a slighly shaded box that would have input fields in it. I hope that makes sense.My main concern is that currently Stack View really messes up my formatting but does in some way actually group toegther the 24 text fields I have. I'd also like it if this grouping allowed me to resize everything inside of it at the same time.I know its truly a noob situation but I've only been playing with this for 2 days.
2
0
351
Apr ’17
MinuteWeather summary property returns empty string
I've been unable to get MinuteWeather to return anything for the summary property -- it used to return a nil value which was fixed in a previous beta, but now it always returns an empty string. The rest of the MinuteWeather data returns as expected. Example call: let latitude = 37.323 let longitude = -122.032 Task { let weatherData = WeatherData.shared let minutely = await weatherData.minutelyForecast(for: CLLocation(latitude: latitude, longitude: longitude)) guard let minutelyWeather = minutely else { print(WeatherKit minutely data unavailable) return } print(minutelyWeather.summary) // This returns } WeatherData class: class WeatherData: NSObject { static let shared = WeatherData() private let service = WeatherService.shared func minutelyForecast(for location: CLLocation) async -> WeatherKit.Forecast? { let minuteWeather = await Task.detached(priority: .userInitiated) { let forecast = try? await self.service.weather(for: location, including: .minute) return forecast }.value return minuteWeather
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1.2k
Sep ’22
Reply to Missing demo project
The companion sample code is this: Adopting SwiftData for a Core Data app, though it was updated for the SwiftData sessions in WWDC24 and WWDC25, and so is a bit different from the version published for WWDC23. Best, —— Ziqiao Chen  Worldwide Developer Relations.
Topic: App & System Services SubTopic: iCloud Tags:
Mar ’26
Reply to Will Apple Intelligence Support Third-Party LLMs or Custom AI Agent Integrations?
Thank you for the response and for pointing me toward MLX — I’ll definitely dive deeper into it. I understand the limitations around sharing roadmap details, and I’m looking forward to WWDC25 for any related announcements. Thanks again! — Aishwarya Dekhane
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May ’25
CoreData and Group By
Hi Folks, Sorry I am sure this has been asked before - Beginner level programmer trying to get my head round something I am sure is simple. I know coredata is not a Relational database but please go easy!! I have data my app is storing as people respond to the 'game' a 'session' guid (runNumber) , and if they hit the correct button or not (correctAnswer). I want to group the responses by the guid and sum the 'correct' answers. I think I am pulling the data correctly: @Environment(.managedObjectContext) private var viewContext @FetchRequest( entity: CoreScore.entity(), sortDescriptors: [ NSSortDescriptor(keyPath: CoreScore.runNumber, ascending: false) ] ) var corescores: FetchedResults But my view List(corescores, id: .self) { corescore in Text(corescore.runNumber ?? Unknown) Text(corescore.correctAnswer ?? Unknown) } Shows all the individual responses... How do I group them by runNumber?
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0
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0
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320
Activity
Jan ’21
How to delete a subscription group?
I just changed my mind to have a one-time-purchase instead of subscriptions.However, I can see any way to delete the subscription group that I created before.It seems if you don't delete the group you will be REJECTED by the review team.😐Any ideas?
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0
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0
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767
Activity
May ’20
Wednesday Security Lab Notes
Question:In the session yesterday, it was mentioned that Gatekeeper's app relocation moved the app on an unsigned disk image to a randomized place on the filesystem. How does this work?Answer:When the app with the unsigned dependencies is launched, Gatekeeper makes a synthetic instance of the app at a randomized location elsewhere in the filesystem. The synthesized instance of the app is what is actually being launched.The synthesized instance is by itself in this new location, so it's unable to access the unsigned code / library / script, etc when it launches.The synthesized instance is not a copy of the app. Overall behavior is similar to nullfs on BSD, or using bind mounts on Linux.Question:Are there any new features in System Integrity Protection on Sierra, or will the functionality be the same as in El Capitan? If there are new features, what are they?Answer:Same functionality as in El Capitan.Question:Are there new restrictions in System Integrity Protection on Sierra, or do the restrictions currently m
Replies
1
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0
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1.8k
Activity
Jun ’16
test groups in TestFlight
I'm not able to add more than one test group to a build that I've submitted for review for testing with TestFlight. Is that the intention of Apple or is it a bug? Will I be able to add other test groups after my build is approved by review?
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0
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0
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525
Activity
Apr ’17
Cannot remove testing group from build/Groups auto adding to build
Hi, I would like to rollout our builds to a subset of our internal testers (the devs) before we roll it out to the rest (QA, product managers). After submitting the compliance on a build, both of my internal testing groups are automatically added to the build. I thought I would get to choose which group at add myself. To make matters worse, there doesn't appear to be any way to remove a testing group from a build, despite what the documentation says: As you can see, my pointer is over the group, but no Delete button exists Help! -Ethan
Replies
2
Boosts
0
Views
2.6k
Activity
Mar ’23
Switching subscription groups
I have an app where fans can subscribe to multiple content creators and this is implemented using a sub group for each creator. I want to add a new all access subscription that gets them access to everything. We are treating this as an upgrade from the individual sub. Is there a way to cancel (or swap) the individual sub when they subscribe to the bundled sub? I know within a sub group it is possible to go between sub levels, but not sure about across sub groups.
Replies
0
Boosts
0
Views
493
Activity
Apr ’24
Group Apps
Since I have upgraded to IOS 14.2 on my iphone7. On several occasions I have found that I am unable to open my apps that I have grouped together. When I touch the screen the apps acknowledge that I selected it but it does nothing after that.
Replies
0
Boosts
0
Views
290
Activity
Dec ’20
Getting summary data from reports
Is there any way to get the following pieces of information from a downloaded report ( can obviously get this from looking at appstoreconnect but I want to get it in an automated way.) Total subscriber count for a specific date Exact payment made to the bank account for a certain month Thanks
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0
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0
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339
Activity
Jul ’23
Make a Group of wallets
Hello Apple Cummunityis there any functionality available in iOS that allows to group the Wallets with the same type (e.g. passTypeIdentifier) in the Wallet App? So the user would see in the Wallet App a group of the same type of Wallets.Thanks in advance.Kind regardsDennis
Replies
1
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0
Views
1.2k
Activity
Mar ’17
MTLComputeCommandEncoder: what are SIMD groups?
MTLComputeCommandEncoder documentation mentions the concept of SIMD group, and there is even a void simdgroup_barrier(mem_flags flags) function in addition to the threadgroup_barrier one.Can someone please explain what a SIMD group is? Why that term and not a thread group?
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0
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0
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554
Activity
May ’17
How to Group UI aspects?
I'm new to programming on XCode and I'm currently messing with the UI trying to setup the program similar to a worksheet I have in real life. The worksheet has several boxes around the paper that are grouped so that statistics can be recorded and found easily. I would love to have my program look more like this, with grouped sets of statistics, but I've no idea how to do it. I would like to have a slighly shaded box that would have input fields in it. I hope that makes sense.My main concern is that currently Stack View really messes up my formatting but does in some way actually group toegther the 24 text fields I have. I'd also like it if this grouping allowed me to resize everything inside of it at the same time.I know its truly a noob situation but I've only been playing with this for 2 days.
Replies
2
Boosts
0
Views
351
Activity
Apr ’17
MinuteWeather summary property returns empty string
I've been unable to get MinuteWeather to return anything for the summary property -- it used to return a nil value which was fixed in a previous beta, but now it always returns an empty string. The rest of the MinuteWeather data returns as expected. Example call: let latitude = 37.323 let longitude = -122.032 Task { let weatherData = WeatherData.shared let minutely = await weatherData.minutelyForecast(for: CLLocation(latitude: latitude, longitude: longitude)) guard let minutelyWeather = minutely else { print(WeatherKit minutely data unavailable) return } print(minutelyWeather.summary) // This returns } WeatherData class: class WeatherData: NSObject { static let shared = WeatherData() private let service = WeatherService.shared func minutelyForecast(for location: CLLocation) async -> WeatherKit.Forecast? { let minuteWeather = await Task.detached(priority: .userInitiated) { let forecast = try? await self.service.weather(for: location, including: .minute) return forecast }.value return minuteWeather
Replies
3
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0
Views
1.2k
Activity
Sep ’22
Reply to Missing demo project
The companion sample code is this: Adopting SwiftData for a Core Data app, though it was updated for the SwiftData sessions in WWDC24 and WWDC25, and so is a bit different from the version published for WWDC23. Best, —— Ziqiao Chen  Worldwide Developer Relations.
Topic: App & System Services SubTopic: iCloud Tags:
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Views
Activity
Mar ’26
Reply to Accessing Apple Intelligence APIs: Custom Prompt Support and Inference Capabilities
Hi @Kushagra_Kumar, I'm happy to share an update that this week at WWDC25, we announced the Foundation Models framework, giving developers access to on-device language models and the ability to generate inferences from prompts. -J
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Jun ’25