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“A Summary of the WWDC26 Group Lab”

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Reply to What is _the_ proper way to intercept tool calls modify them or dynamically approve/reject them?
In addition to implementing Tool conformance, the Foundation Models framework also introduced a new DynamicProfile API that allows you to add event listeners like onToolCall. For tool approval and rejection, the session Secure your app: mitigate risks to agentic features - WWDC26 has some nice examples. For dynamically modifying tools, there's a detailed session: Build agentic app experiences with the Foundation Models framework.
Topic: Foundation Models SubTopic:
Foundation Models Q&A
Jun ’26
SwiftUI Form (Grouped) with Table
Hi everyone, I’m having an issue with a SwiftUI Table inside a Form in a macOS app. When the Form style is set to .grouped, the Table does not resize to the full width of the Form or Sheet. However, when I switch to a .plain style, it resizes correctly. Here’s a simplified version of my code: Section(header: Text(Header)) { Table(data) { TableColumn(Column 1, value: .col1) TableColumn(Column 2, value: .col2) // Add more columns as needed } .frame(height: 100) } } .formStyle(.grouped) // Issue occurs only with this style Has anyone else experienced this? Any workarounds or suggestions would be greatly appreciated! Thanks!
3
0
857
Sep ’24
SIMD-group shuffle on iOS?
It seems like the SIMD-group shuffle instructions (e.g. simd_shuffle(), simd_shuffle_down(), simd_shuffle_xor() etc. – subsection 5.13) aren't supported on iOS (#include <metal_simdgroup> throws an error).I'd like to know why aren't these instructions available on iOS – is it because the GPU architectures don't allow for these instructions to be implemented (why?), or is there any other reason?Furthermore is there a plan to add these instructions to iOS?
4
0
2.4k
Aug ’17
Xcode Groups - "cannot find type..." when accessing an object defined in another group
I'm a beginner to Xcode, swift, and swiftui and I'm following the tutorial here. It says to break files into view model and resource groups. However, when I try to access objects from the model in classes in the view, I get an error saying cannot find type ___ in scope. In java or c# I would add a package or namespace reference. How do I do this is swift?
0
0
361
May ’22
Draw order between model sort groups
I’m familiar with using ModelSortGroupComponent to control draw order, but how does RealityKit determine the draw order between model sort groups? How can I enforce a specific draw order between two model sort groups that require different depth pass modes and therefore can't be combined into a single model sort group? Are there model bounding box tricks I can safely rely on?
1
0
277
Jun ’26
Adding User to Internal Testing Group
Hey there 👋 I know it is possible to add a beta tester to an external tester group via this call. But what I didn't find out is how to add an User to an internal tester-group like App Store Connect Users. This gets even more a topic since Apple announced that we can create multiple internal tester groups in future. Is this possible with the current state of the ASC API?
0
0
1.2k
Jun ’21
Move existing subscription items between subscription groups
App rejected that the different durations of your auto-renewable subscriptions were created as separate in-app purchase products, rather than as different durations within the same subscription group.I have two IAP items in two different groups (Group A - Item 1, GroupB - Item 1). How can I move the second group item to the first group? I want to make sure to not affect any users by creating a new item in group 1 because there already subscribers in group 2.If I create a new item in Group A what will happen to the Group B subscribers.I looked for this issue and couldn't find any solution.
10
0
4k
Jun ’20
Reply to What is _the_ proper way to intercept tool calls modify them or dynamically approve/reject them?
In addition to implementing Tool conformance, the Foundation Models framework also introduced a new DynamicProfile API that allows you to add event listeners like onToolCall. For tool approval and rejection, the session Secure your app: mitigate risks to agentic features - WWDC26 has some nice examples. For dynamically modifying tools, there's a detailed session: Build agentic app experiences with the Foundation Models framework.
Topic: Foundation Models SubTopic:
Foundation Models Q&A
Replies
Boosts
Views
Activity
Jun ’26
SwiftUI Form (Grouped) with Table
Hi everyone, I’m having an issue with a SwiftUI Table inside a Form in a macOS app. When the Form style is set to .grouped, the Table does not resize to the full width of the Form or Sheet. However, when I switch to a .plain style, it resizes correctly. Here’s a simplified version of my code: Section(header: Text(Header)) { Table(data) { TableColumn(Column 1, value: .col1) TableColumn(Column 2, value: .col2) // Add more columns as needed } .frame(height: 100) } } .formStyle(.grouped) // Issue occurs only with this style Has anyone else experienced this? Any workarounds or suggestions would be greatly appreciated! Thanks!
Replies
3
Boosts
0
Views
857
Activity
Sep ’24
SIMD-group shuffle on iOS?
It seems like the SIMD-group shuffle instructions (e.g. simd_shuffle(), simd_shuffle_down(), simd_shuffle_xor() etc. – subsection 5.13) aren't supported on iOS (#include <metal_simdgroup> throws an error).I'd like to know why aren't these instructions available on iOS – is it because the GPU architectures don't allow for these instructions to be implemented (why?), or is there any other reason?Furthermore is there a plan to add these instructions to iOS?
Replies
4
Boosts
0
Views
2.4k
Activity
Aug ’17
Xcode Groups - "cannot find type..." when accessing an object defined in another group
I'm a beginner to Xcode, swift, and swiftui and I'm following the tutorial here. It says to break files into view model and resource groups. However, when I try to access objects from the model in classes in the view, I get an error saying cannot find type ___ in scope. In java or c# I would add a package or namespace reference. How do I do this is swift?
Replies
0
Boosts
0
Views
361
Activity
May ’22
Draw order between model sort groups
I’m familiar with using ModelSortGroupComponent to control draw order, but how does RealityKit determine the draw order between model sort groups? How can I enforce a specific draw order between two model sort groups that require different depth pass modes and therefore can't be combined into a single model sort group? Are there model bounding box tricks I can safely rely on?
Replies
1
Boosts
0
Views
277
Activity
Jun ’26
Adding User to Internal Testing Group
Hey there 👋 I know it is possible to add a beta tester to an external tester group via this call. But what I didn't find out is how to add an User to an internal tester-group like App Store Connect Users. This gets even more a topic since Apple announced that we can create multiple internal tester groups in future. Is this possible with the current state of the ASC API?
Replies
0
Boosts
0
Views
1.2k
Activity
Jun ’21
Move existing subscription items between subscription groups
App rejected that the different durations of your auto-renewable subscriptions were created as separate in-app purchase products, rather than as different durations within the same subscription group.I have two IAP items in two different groups (Group A - Item 1, GroupB - Item 1). How can I move the second group item to the first group? I want to make sure to not affect any users by creating a new item in group 1 because there already subscribers in group 2.If I create a new item in Group A what will happen to the Group B subscribers.I looked for this issue and couldn't find any solution.
Replies
10
Boosts
0
Views
4k
Activity
Jun ’20