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A Summary of the WWDC25 Group Lab

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Unable set keychain-access-groups with Team​Identifier​Prefix
I want to store SecIdentity in the keychain access group $(TeamIdentifierPrefix)com.apple.networkextensionsharing. But Provisioning profile xxxx doesn't match the entitlements file's value for the keychain-access-groups entitlement. My profile dont have a param name 'TeamIdentifierPrefix'. Please , how can i add the TeamIdentifierPrefix to my profile. And my TeamIdentifier is same as the AppIdentifierPrefix
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Aug ’22
Reply to How to update TabViewBottomAccessoryPlacement
Follow up: I had a Quick Look at the new SwiftUI WWDC25 session https://developer.apple.com/videos/play/wwdc2025/323 It seems I'm misunderstanding this API, do the enum cases .inline and .expanded refer to the accessory being in different states of compact? See attached screenshots below. I assumed expanded meant a larger expanded player, which would be fullscreen on an iPhone.
Topic: UI Frameworks SubTopic: SwiftUI Tags:
Jun ’25
Bundle’s name of a helper with a group container
My application uses a group container that shares files between the main application and its helper. The helper is launched by using SMLoginItemSetEnabled. When I switch to xCode 7 and build the project, I get an error :error: Embedded binary's bundle identifier is not prefixed with the parent app's bundle identifier. Embedded Binary Bundle Identifier: X2RD457E37.com.myCompany.myHelper Parent App Bundle Identifier: com.myCompany.myAppSo far, the bundle’s name of the helper started with the the group container ID (X2RD457E37). Did this rule change ? I have found no documentation on the subject.I develop in Objective-C but I notice that with Swift the method SMLoginItemSetEnabled is no longer avalaible. I guess it was replaced. But by what?Thanks for any help.
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412
Jul ’15
Reply to P3 Display to XYZ Color Space Conversion
Thanks for your detailed anwswer. It's claried all the issues for me.Also, I was having a problem with OpenGL ES shader code that converted Display P3 colors to/from the Lab and IPT color spaces. In particular, my results did not match the ColorSync Utility when converting Display P3 to/from Lab. Your mention of D50 caused me to use that reference rather than D65 and now my results match. Switching to D50 also corrected the IPT results.Thanks again!
Topic: Media Technologies SubTopic: General Tags:
Feb ’17
Cannot invite team members to the group.
After inviting people to the developer group, they accept the invites, but the team doesn't show under the account. This caused the developer cannot request the cert from Xcode, and we cannot link the dev cert with the related profile for the developer. Does anyone has this similar issue, and do Apple can have someone help have a check?
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1.4k
Jan ’22
Header alignment with UICollectionLayoutListConfiguration in grouped appearance
Hello, I am using compositional layout to create list of objects. I have followed the official documentation and tried the provided sample here: https://developer.apple.com/documentation/uikit/views_and_controls/collection_views/implementing_modern_collection_views However, I have seen something weird with the ListAppearancesViewController. When I use the sample as provided (initial appearance is set to plain), if I change the appearance to grouped by clicking on the bar item, the height of the header is displayed according to the label: But if I change the initial appearance in the code to grouped or insetGrouped, the height is higher: Which one is the correct behavior? Having this space or not? But with this space, the accessory is not vertically aligned with the header, which is weird. How to solve that? Thanks for the help! Nghia
Topic: UI Frameworks SubTopic: UIKit
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Jun ’24
Reply to Xcode Build Timing summary not visible
For people that come here looking for an answer... after invoking the build using the Product > Perform Action > Build with Timing Summary, once the build is done, select the build in the Report Navigator (⌘9) and then selecting Editor > Open Timeline. This will open the timing summary along side the build log. Note that as far as I know, the flag ShowBuildOperationDuration is only used for showing the duration of the build in the toolbar; it is not required to be set for the build timing summary.
Mar ’23
Text output of the text based on a lab from a CoreMLDataModel
Hello, I have created a data model with Text Classification which contains many garments with the label clothing, technology equipment with the label technology, etc.... . I have inserted it so that when entering for example T-shirt the label clothing is output. But I want it so that when I create an equipment category with the clothing, that it suggests me clothing items, which I add. How do I implement this. In the function you can only usepreditction.label. I program with SwiftUI. func textml() { do { let model = try DataModel_Symbols_Consilia(configuration: .init()) let prediction = try model.prediction(text: addProjectVM.title) addProjectVM.symbol = prediction.label } catch { modelOutput = Something went wrong } } Greetings Janik
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1.2k
Mar ’23
Combine legacy Renewable Subscriptions into same Group
We have had 4 subscription products available for a few years now. 2 are for 25 GB of online storage, 2 are for 10 GB of online storage, each with 1 month and 1 year options:25 GB - 1 Year25 GB - 1 Month10 GB - 1 Year10 GB - 1 MonthI am attempting to update the localized subscription display name, so the users will see the correct verbiage when they Manage their subscriptions with Apple. However my edits are always rejected becuase Your app appears to allow users to inadvertently subscribe to multiple variations of the same thing.I think this issue arises from the incorrect Subscription Groups that Apple put in place. Please refer to this image: http ://i.imgur.com/VTMmwfv.pngThe two 25 GB products are grouped separately from the two 10 GB products. It looks like you could have a subscription for each, 25 and 10. This is not the case in the app coding, nor is it our intention. All 4 of my products should be in the same Group, then sorted into upgrade and downgrade options. This is a
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1k
Feb ’17
iMessage app in group conversation
I was watching the WWDC video about iMessage apps, part 2 and was a bit surprised by the section about group conversations. It's between 36:20 and 38:20 in this video: https://developer.apple.com/videos/play/wwdc2016/224/I was a bit surprised by that and I don't understand why an app can't have access to all messages in the current session. Not the entire conversation, but just the current session. They all belong to the app so why would the app not be allowed to have access to all messages in that session? It should be made available through the MSSession object if you ask me. Or am I missing something??I understand what he means by using the cloud but it feels like a bit of a hack to me.
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Jun ’16