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“A Summary of the WWDC25 Group Lab”

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AU Lab midi mapping (host automation?) broken?
Or did it ever work? I just started trying to get a small setup with a single AU happening. I can play notes and assign midi CC #s to parameters in a plugin, but Command-clicking to open the midi mappings window does only that – I move a midi control as it directs but nothing happens. Notes no longer play and the application is not responding. Clicking cancel in the midi mapping window results in a beachball and I have to force-quit. I've had zero luck with multiple google searches on a variety of terms, so I'm posting here. TIA for any help! I have the latest AU Lab (2.3, created March 6, 2020) on a fresh install of Mojave (10.14.6). BTW - I am assuming, perhaps incorrectly, that midi mapping and host automation are the same thing. Maybe I need to be set straight there. I'm curious though – if Apple means this program to be a test bed for AUs that devs build, how could it not have some way to test host automation? This makes no sense to me.
0
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459
Aug ’20
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
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290
Feb ’18
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
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646
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?
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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?
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474
Feb ’23
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
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
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599
Jun ’16
Create hidden users group from terminal
Hi, I need to create a new users group on macos (version 10.15 and up) from terminal or from swift. The group must be hidden, not be displayed into System Preferences, similar to www group for example. I've found 2 ways to create a group from terminal: dscl and dseditgroup, but in both cases the created group is visible into the Users and Groups list from System Settings. Any suggestions how I can hide the group? Thanks
1
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1k
Mar ’23
Can someone please summaries and explain the logic/process for creating a reminders app
Hi,Can someone please summaries and explain the logic/process for creating a reminders app?I'm no looking for code I just need the list of frameworks and steps needed for creating a reminders app1. You fist create a calendar event (what framework/methods?).2. Than you load the calendar event (what framework/methods?).3. Than you notify the user (what framework/methods?).I know this is a very broad question but I have to start some where.Thanks
Topic: UI Frameworks SubTopic: UIKit Tags:
7
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772
Jan ’20
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 (
1
0
1.1k
Jun ’19
AU Lab midi mapping (host automation?) broken?
Or did it ever work? I just started trying to get a small setup with a single AU happening. I can play notes and assign midi CC #s to parameters in a plugin, but Command-clicking to open the midi mappings window does only that – I move a midi control as it directs but nothing happens. Notes no longer play and the application is not responding. Clicking cancel in the midi mapping window results in a beachball and I have to force-quit. I've had zero luck with multiple google searches on a variety of terms, so I'm posting here. TIA for any help! I have the latest AU Lab (2.3, created March 6, 2020) on a fresh install of Mojave (10.14.6). BTW - I am assuming, perhaps incorrectly, that midi mapping and host automation are the same thing. Maybe I need to be set straight there. I'm curious though – if Apple means this program to be a test bed for AUs that devs build, how could it not have some way to test host automation? This makes no sense to me.
Replies
0
Boosts
0
Views
459
Activity
Aug ’20
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
290
Activity
Feb ’18
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
646
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
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0
Views
474
Activity
Feb ’23
Group messaging doesn't work
Group messaging doesn't work for text messages for some reason
Replies
1
Boosts
0
Views
233
Activity
Mar ’17
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:
Replies
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Views
Activity
Dec ’15
Bluetooth sync contact group
In iOS 10 Beta 7 how do you sync only selected contact groups via Bluetooth to car system? In iOS 9 (and earlier versions) under the Bluetooth settings you could see, and select, individual contact groups but under iOS 10 there is only the option to select 'All Contacts'.
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8
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0
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2.8k
Activity
Aug ’16
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
599
Activity
Jun ’16
Create hidden users group from terminal
Hi, I need to create a new users group on macos (version 10.15 and up) from terminal or from swift. The group must be hidden, not be displayed into System Preferences, similar to www group for example. I've found 2 ways to create a group from terminal: dscl and dseditgroup, but in both cases the created group is visible into the Users and Groups list from System Settings. Any suggestions how I can hide the group? Thanks
Replies
1
Boosts
0
Views
1k
Activity
Mar ’23
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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Jul ’25
Reply to I want to ask about Contents Right
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.
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Activity
Jun ’23
Can someone please summaries and explain the logic/process for creating a reminders app
Hi,Can someone please summaries and explain the logic/process for creating a reminders app?I'm no looking for code I just need the list of frameworks and steps needed for creating a reminders app1. You fist create a calendar event (what framework/methods?).2. Than you load the calendar event (what framework/methods?).3. Than you notify the user (what framework/methods?).I know this is a very broad question but I have to start some where.Thanks
Topic: UI Frameworks SubTopic: UIKit Tags:
Replies
7
Boosts
0
Views
772
Activity
Jan ’20
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
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0
Views
1.1k
Activity
Jun ’19
"Group" Function in TestFlight
I have a question about creating an external beta test in TestFlight.Can I choose to only send the beta test to certain 'groups' (3rd column) or will the beta test be automatically sent to everyone on the external testing list?
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1
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0
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13k
Activity
Dec ’15