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“A Summary of the WWDC25 Group Lab”

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Wednesday Education and Enterprise Deployment and Development Lab Notes
Question:How does the MDM command to Install major update force macOS Sierra upgrades on DEP-enabled Macs?Is the user asked to authorize the upgrade, or does the upgrade happen with or without user consent?Answer:It downloads the OS installer from the MAS, and triggers the startosinstall command line tool.It behaves like a restart-required software update:If the user is logged-in and there is unsaved data, it will nag you that there is a pending software update and to please restart.If nobody is logged-in (i.e. at loginwindow), the OS upgrade starts without user intervention.Question:Can both the ALF and PF firewalls be configured via MDM?Answer:Yes, with caveats. Refer to Sierra's Profile Manager for the currently supported functionality.Question:Are the ALF and PF firewalls configured via Profiles (.mobileconfig) or directly via MDM commands?Answer:Configuration profile (.mobileconfig file)Question:Can firewall logging also be configured this way? If so, can the new log command line utility see the logs, so
0
0
597
Jun ’16
App Groups and UIImage
I want to transfer a UIImage from the main application to my keyboard extension (in Swift). The only way I can think of to do this is by using app groups. (If there's another I'd love to know 🙂 ) Does anybody know how this would work? Do I need to use Core Data? Thank you!
Topic: UI Frameworks SubTopic: UIKit Tags:
0
0
175
Apr ’16
Xcode Expands All Groups
Hi!(In advance I'm using Xcode 9.2 (9C40b))Xcode is great but one thing that grids my gears, is that whenever I add something(New file, Group, etc) to the file tree all groups gets expanded😢 This gets really annoying beacause of having multiple groups and having to minimize everything over and over again.I can't be the only one with this issue, or am I doing something wrong?If this is just a bug in Xcode, is there a future update coming to fix this?Regards/Guthner
0
0
287
Feb ’18
How to use multiple Vive headsets in one Mac computer lab
Greetings! I am a professor of Italian Renaissance architecture and urbanism, and my question relates to a course I'd like to teach on the canals of Venice. Part of the course would be in our Mac lab (furnished with 15 2014-2017 iMacs), where I would like each of my 15 students to edit a single 360 video of the canals using the Immersive Environment feature in Premiere Pro / After Effects while wearing Vive headsets. According to Adobe, our iMacs fit the system requirements for using Premiere Pro and After Effects with the Vive; according to HTC, they're positive that I can do this but aren't authorized to tell me how (they also want me to reach out to HTC Arcade...?).I'm planning on installing Mac SteamVR on, and hooking up a Vive headset to, each of the computers. Thunderbolt 2 is the fastest connection on our iMacs, so I was planning on hooking up the Vives to a thunderbolt 2 to HDMI/USB adapter. I don't think I need external GPUs, because each student will only be editing/watching one 360 video (
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1.1k
Jun ’19
Reply to Core Data Predicate - Table View Display Format
The code in the previous post wasn't presented for copy/pasting, it was presented as an example of the idea.The thing is, if this were a classroom assignment, the purpose of the assignment would be:Use sortDescriptors on an NSFetchRequest to group the fetch results by name.Instead of displaying the results of the fetch request directly, display one section and for the rows display information from the groups of the fetch request.Or, as a variation to the second bullet point, instead of displaying the individual rows, initially display a single row displaying summary information for the group which is replaced by the individual rows when expanded.But all of that still boils down to:Step 1: Sort your fetch request by name.Step 2: Customize your table view code in a manner that goes beyond the scope of a single forum post.As a good start, the table view and collection view sessions from each year's WWDC videos explain how to do this sort of thing, things like dynamically addin
Topic: Programming Languages SubTopic: Swift Tags:
Dec ’15
Apple Watch Group Notification
I recently moved my watch app from InterfaceController to the SwiftUI LifeCycle, but I've encountered some issues. In my app, I'm using group notifications. Before I moved to the SwiftUI LifeCycle, when I received a group notification with the same thread identifier, it appeared as a stack in the notification center of the watch. When I touched the stack, it extended with individual notifications. However, after moving to the SwiftUI LifeCycle, when I touch the stack, it only shows the first notification of the stack and doesn't display the extended notifications. Do I need a custom group notification view in the SwiftUI LifeCycle, similar to the Message App? Is there any other way to use the previous static group notification view? Please help me!
0
0
505
Apr ’23
imessage group chat confusion
So I am in a group chat with my family. We’ve had this groupchat established for a long time, and none of us have ever added anyone else to it. Somehow last night, a different family member joined our group chat and started texting us, but none of the original chat members added her, not even accidentally. This is the second time this has happened, and we have no idea how they are inserting themselves into our group chat. We are all iphone users, including the person that is somehow adding themselves to our group chat. All of us use different Apple ID accounts as well as different phone numbers, and that’s the same for the person adding themselves, so I’m truly at a loss for how this is happening.
2
0
281
Jan ’25
What is the point of thread-id/grouping in push notifications if grouping depends upon user preferences?
There's plenty of articles out there about programatically grouping push notifications. However I have tried setting the thread-id in the push payload when sending a push, or setting the threadIdentifier for a received push in a notification service extension to be the same for several pushes. But if within the iPhone Settings / Notifications the user selects to display pushes as List and turns off Notification Grouping, then each notification resulting from the push appears on its own separately. Is there something other than thread-id/threadidentifier that is used to programmatically group them? If not then whats the point of these as grouping and display is actually under the control of user.
1
0
108
Mar ’25
App Group File Ownership
Files can be written and read from the App Group by multipler apps. When an app is removed, its files are also removed.It looks like files in the App Group folder are owned by the app that created them. So, if app A adds a file to the App Group and then app A is removed, the file in the App Group is also removed. If App B reads that file, it better deal gracefully with it disappearing.What if a file in the App Group is created by app A and then modified by App B? Does ownship transfer to app B or remain with app A? If app A is removed after app B modifies the file, will it be removed?
1
0
622
Jan ’17
Sign In With Apple and App Grouping?
Sign In With Apple has a group apps category: https://help.apple.com/developer-account/?lang=en#/dev04f3e1cfcHowever, thats the only information I could find for sign in with apple and group apps.What is the significants of group apps with sign in with apple? What does it do? How does one use it?Does it support the following use-case?: I have a primary app and a child app. If I sign in with apple with the primary app, and then i want to use the secondary app, do i have to sign in again? Or am I already signed in because I have signed in with the primary app? Or can I architect it in such a way that allows me to sign in to one of the grouped apps, and then stay signed in when using another grouped app?
2
0
5k
Oct ’19
Multiple Subscription Group Approvals
My app creates new subscription groups via the app store connect api. Our end users subscribe to creators. Each creator has their own subscription group within app store connect. We will create hundreds, even thousands of subscription groups via the api over time. Does Apple have to approve each subscription group before they can be accessed via the app by end users? Or do they just approve the first one and allow us to create new subscriptions groups in real time -- over time via the API without additional approvals?
0
0
465
Feb ’23
How to transfer an app group?
Is there a way to transfer an app goup from one developer account to another?We moved an app and to be able to read the old data on users devices we need access to the old app group, right?Would love is someone could help me out with this, thanks.
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0
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519
Activity
Dec ’15
Reply to InferenceError referencing context length in FoundationModels framework
You can use the Foundation Models instrument, in the Instruments app, to analyze the use of the framework and details about your session: it features a column reporting the number of input and output tokens, which you might want to check to see if they're consistent with your expectations. This WWDC25 video can be useful too.
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Activity
Jul ’25
Wednesday Education and Enterprise Deployment and Development Lab Notes
Question:How does the MDM command to Install major update force macOS Sierra upgrades on DEP-enabled Macs?Is the user asked to authorize the upgrade, or does the upgrade happen with or without user consent?Answer:It downloads the OS installer from the MAS, and triggers the startosinstall command line tool.It behaves like a restart-required software update:If the user is logged-in and there is unsaved data, it will nag you that there is a pending software update and to please restart.If nobody is logged-in (i.e. at loginwindow), the OS upgrade starts without user intervention.Question:Can both the ALF and PF firewalls be configured via MDM?Answer:Yes, with caveats. Refer to Sierra's Profile Manager for the currently supported functionality.Question:Are the ALF and PF firewalls configured via Profiles (.mobileconfig) or directly via MDM commands?Answer:Configuration profile (.mobileconfig file)Question:Can firewall logging also be configured this way? If so, can the new log command line utility see the logs, so
Replies
0
Boosts
0
Views
597
Activity
Jun ’16
App Groups and UIImage
I want to transfer a UIImage from the main application to my keyboard extension (in Swift). The only way I can think of to do this is by using app groups. (If there's another I'd love to know 🙂 ) Does anybody know how this would work? Do I need to use Core Data? Thank you!
Topic: UI Frameworks SubTopic: UIKit Tags:
Replies
0
Boosts
0
Views
175
Activity
Apr ’16
Xcode Expands All Groups
Hi!(In advance I'm using Xcode 9.2 (9C40b))Xcode is great but one thing that grids my gears, is that whenever I add something(New file, Group, etc) to the file tree all groups gets expanded😢 This gets really annoying beacause of having multiple groups and having to minimize everything over and over again.I can't be the only one with this issue, or am I doing something wrong?If this is just a bug in Xcode, is there a future update coming to fix this?Regards/Guthner
Replies
0
Boosts
0
Views
287
Activity
Feb ’18
How to use multiple Vive headsets in one Mac computer lab
Greetings! I am a professor of Italian Renaissance architecture and urbanism, and my question relates to a course I'd like to teach on the canals of Venice. Part of the course would be in our Mac lab (furnished with 15 2014-2017 iMacs), where I would like each of my 15 students to edit a single 360 video of the canals using the Immersive Environment feature in Premiere Pro / After Effects while wearing Vive headsets. According to Adobe, our iMacs fit the system requirements for using Premiere Pro and After Effects with the Vive; according to HTC, they're positive that I can do this but aren't authorized to tell me how (they also want me to reach out to HTC Arcade...?).I'm planning on installing Mac SteamVR on, and hooking up a Vive headset to, each of the computers. Thunderbolt 2 is the fastest connection on our iMacs, so I was planning on hooking up the Vives to a thunderbolt 2 to HDMI/USB adapter. I don't think I need external GPUs, because each student will only be editing/watching one 360 video (
Replies
1
Boosts
0
Views
1.1k
Activity
Jun ’19
Reply to Core Data Predicate - Table View Display Format
The code in the previous post wasn't presented for copy/pasting, it was presented as an example of the idea.The thing is, if this were a classroom assignment, the purpose of the assignment would be:Use sortDescriptors on an NSFetchRequest to group the fetch results by name.Instead of displaying the results of the fetch request directly, display one section and for the rows display information from the groups of the fetch request.Or, as a variation to the second bullet point, instead of displaying the individual rows, initially display a single row displaying summary information for the group which is replaced by the individual rows when expanded.But all of that still boils down to:Step 1: Sort your fetch request by name.Step 2: Customize your table view code in a manner that goes beyond the scope of a single forum post.As a good start, the table view and collection view sessions from each year's WWDC videos explain how to do this sort of thing, things like dynamically addin
Topic: Programming Languages SubTopic: Swift Tags:
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Views
Activity
Dec ’15
Options to delete keywords/groups
Hello,I can't delete keywords now from the active group (also I can't copy them) and can't delete inactive group — there is simply no button for that.I think that is the really necessary option.Any plans to add it?Thanks.
Replies
24
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0
Views
10k
Activity
Oct ’16
Group Activity and AVAudioSession
For an App in the PlaybackAndRecording Category, would entering a Group Activity Session change the Category and Mode since FaceTime is ongoing? will we still have access to Microphone locally using, e.g. AVAudioEngine? if yes, will the presence of FaceTime force VoiceChat mode and VPIO in our session? Thanks in advance.
Replies
0
Boosts
0
Views
961
Activity
Jun ’21
Apple Watch Group Notification
I recently moved my watch app from InterfaceController to the SwiftUI LifeCycle, but I've encountered some issues. In my app, I'm using group notifications. Before I moved to the SwiftUI LifeCycle, when I received a group notification with the same thread identifier, it appeared as a stack in the notification center of the watch. When I touched the stack, it extended with individual notifications. However, after moving to the SwiftUI LifeCycle, when I touch the stack, it only shows the first notification of the stack and doesn't display the extended notifications. Do I need a custom group notification view in the SwiftUI LifeCycle, similar to the Message App? Is there any other way to use the previous static group notification view? Please help me!
Replies
0
Boosts
0
Views
505
Activity
Apr ’23
imessage group chat confusion
So I am in a group chat with my family. We’ve had this groupchat established for a long time, and none of us have ever added anyone else to it. Somehow last night, a different family member joined our group chat and started texting us, but none of the original chat members added her, not even accidentally. This is the second time this has happened, and we have no idea how they are inserting themselves into our group chat. We are all iphone users, including the person that is somehow adding themselves to our group chat. All of us use different Apple ID accounts as well as different phone numbers, and that’s the same for the person adding themselves, so I’m truly at a loss for how this is happening.
Replies
2
Boosts
0
Views
281
Activity
Jan ’25
What is the point of thread-id/grouping in push notifications if grouping depends upon user preferences?
There's plenty of articles out there about programatically grouping push notifications. However I have tried setting the thread-id in the push payload when sending a push, or setting the threadIdentifier for a received push in a notification service extension to be the same for several pushes. But if within the iPhone Settings / Notifications the user selects to display pushes as List and turns off Notification Grouping, then each notification resulting from the push appears on its own separately. Is there something other than thread-id/threadidentifier that is used to programmatically group them? If not then whats the point of these as grouping and display is actually under the control of user.
Replies
1
Boosts
0
Views
108
Activity
Mar ’25
App Group File Ownership
Files can be written and read from the App Group by multipler apps. When an app is removed, its files are also removed.It looks like files in the App Group folder are owned by the app that created them. So, if app A adds a file to the App Group and then app A is removed, the file in the App Group is also removed. If App B reads that file, it better deal gracefully with it disappearing.What if a file in the App Group is created by app A and then modified by App B? Does ownship transfer to app B or remain with app A? If app A is removed after app B modifies the file, will it be removed?
Replies
1
Boosts
0
Views
622
Activity
Jan ’17
Sign In With Apple and App Grouping?
Sign In With Apple has a group apps category: https://help.apple.com/developer-account/?lang=en#/dev04f3e1cfcHowever, thats the only information I could find for sign in with apple and group apps.What is the significants of group apps with sign in with apple? What does it do? How does one use it?Does it support the following use-case?: I have a primary app and a child app. If I sign in with apple with the primary app, and then i want to use the secondary app, do i have to sign in again? Or am I already signed in because I have signed in with the primary app? Or can I architect it in such a way that allows me to sign in to one of the grouped apps, and then stay signed in when using another grouped app?
Replies
2
Boosts
0
Views
5k
Activity
Oct ’19
Multiple Subscription Group Approvals
My app creates new subscription groups via the app store connect api. Our end users subscribe to creators. Each creator has their own subscription group within app store connect. We will create hundreds, even thousands of subscription groups via the api over time. Does Apple have to approve each subscription group before they can be accessed via the app by end users? Or do they just approve the first one and allow us to create new subscriptions groups in real time -- over time via the API without additional approvals?
Replies
0
Boosts
0
Views
465
Activity
Feb ’23