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“A Summary of the WWDC26 Group Lab”

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App shares with FaceTime during Group Activities
My app passes data across a Group Activities session on a FaceTime call. It requires that the user can see the video coming from the other end. A normal call on the iPhone only sees a PiP video. On an iPad, the user can divide the screen between the two apps. An iPhone user may not be familiar with the iPad UI. Is there an API to divide the screen between FaceTime and another app, automatically? Group Activities with PiP Video iPad FaceTime Full Screen Video
Topic: UI Frameworks SubTopic: UIKit
1
0
78
Sep ’26
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
1
0
238
Jun ’24
BLE Connection Failure with iPad A16 and Silicon Labs Gecko SDK 3.x Devices
We're seeing a consistent issue where iPads with the A16 chip fail to connect to our BLE device, which uses a Silicon Labs chip running Gecko SDK 3.x. All other Apple devices — including older iPads and iPhones — connect without any problems. According to Silicon Labs, the issue stems from the iPad A16 sending an LL_CHANNEL_REPORTING_IND message (opcode 0x28) during connection establishment: Per Silicon Labs: Currently the iPad 16 will send a message for LL_CHANNEL_REPORTING_IND (opcode 0x28). This is a feature that is not supported in Gecko SDK 3.x. Shortly after, the BLE module responds with an 'Unknown Response' (opcode 0x07), indicating that it does not support opcode 0x28 After this exchange the iPad stops sending meaningful transactions to the BLE module and eventually closes the connection. The BLE Module is responding to this unknown request as specified in the BT Core Spec Volume 6 Part B. Unfortunately, the firmware on these BLE modules cannot be updated remotely, and we'v
2
0
658
Jul ’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.
1
0
440
Jul ’15
"Responsible Caller" seems arbitrary in Instruments Zombie Allocation Summary View?
I'm wondering if anyone else is seeing this:it looks to me like the Responsible caller value in the allocation summary is misleading, and randomly dropping to stack frames. for example, right now i'm looking at a summary that has these three lines (among others):Retain -[Solution initWithContentsOfURL:] Retain -[Solution init] Release -[Solution init]seems line 2 and three match, right? think again. if you look at the full stack frames for each, you see this: 0 Fire -[Solution init] /Users/mh/Code/Fire/SharedProjectSystem/Solution.cs:0 1 Fire -[Solution initWithContentsOfURL:] /Users/mh/Code/Fire/SharedProjectSystem/Solution.cs:85 2 Fire +[Solution solutionWithContentsOfURL:] /Users/mh/Code/Fire/SharedProjectSystem/Solution.cs:664 3 Fire -[SolutionDocument readFromURL:] /Users/mh/Code/Fire/SharedCoreApp/SolutionDocument.cs:70 4 Fire -[SolutionDocument readFromURL:ofType:error:] /Users/mh/Code/Fire/SharedCoreApp/SolutionDocument.NSDocument.cs:78 5 AppKit -[NSDocument _initForURL:withContentsO
0
0
533
Apr ’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.
1
0
556
Jun ’16
Where did Keychain Access Groups entitlements go
In the 2020 WWDC changes to the Developer site, the section in Profiles for Keychain Access Groups went away. I understand that this entitlement is now rolled into App Groups, but I don't see my preexisting Access Group identifier listed on my page anymore. Where do I modify or remove the Access Group entitlement I've been using, or create new ones?
4
0
6.2k
Jul ’20
Match can't find groups if it is case insensitive
The shortcut app seems to have a bug regarding text match grouping when trying to match a lowercase string to a capital case one. The match happens, but the regular expression groups are not properly displayed. To replicate, create a shortcut with the following actions: Match d-(george) in 2-George check case-insensitive on Show Matches (this will show 2-George) Get Group At Index 1 in Matches Show Text This will not print anything
0
0
596
May ’23
App shares with FaceTime during Group Activities
My app passes data across a Group Activities session on a FaceTime call. It requires that the user can see the video coming from the other end. A normal call on the iPhone only sees a PiP video. On an iPad, the user can divide the screen between the two apps. An iPhone user may not be familiar with the iPad UI. Is there an API to divide the screen between FaceTime and another app, automatically? Group Activities with PiP Video iPad FaceTime Full Screen Video
Topic: UI Frameworks SubTopic: UIKit
Replies
1
Boosts
0
Views
78
Activity
Sep ’26
Can we add "app groups" to iOS loadable plugin
Hi,We can add app-group to Containig application and app-extension to share the data. But is it also possible to add app-group to iOS plugin's entitlements so that it can also have an access to shared container if needed?Thanks and regards,Sanjay
Topic: UI Frameworks SubTopic: UIKit Tags:
Replies
0
Boosts
0
Views
282
Activity
Jan ’16
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
Replies
1
Boosts
0
Views
238
Activity
Jun ’24
BLE Connection Failure with iPad A16 and Silicon Labs Gecko SDK 3.x Devices
We're seeing a consistent issue where iPads with the A16 chip fail to connect to our BLE device, which uses a Silicon Labs chip running Gecko SDK 3.x. All other Apple devices — including older iPads and iPhones — connect without any problems. According to Silicon Labs, the issue stems from the iPad A16 sending an LL_CHANNEL_REPORTING_IND message (opcode 0x28) during connection establishment: Per Silicon Labs: Currently the iPad 16 will send a message for LL_CHANNEL_REPORTING_IND (opcode 0x28). This is a feature that is not supported in Gecko SDK 3.x. Shortly after, the BLE module responds with an 'Unknown Response' (opcode 0x07), indicating that it does not support opcode 0x28 After this exchange the iPad stops sending meaningful transactions to the BLE module and eventually closes the connection. The BLE Module is responding to this unknown request as specified in the BT Core Spec Volume 6 Part B. Unfortunately, the firmware on these BLE modules cannot be updated remotely, and we'v
Replies
2
Boosts
0
Views
658
Activity
Jul ’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.
Replies
1
Boosts
0
Views
440
Activity
Jul ’15
"Responsible Caller" seems arbitrary in Instruments Zombie Allocation Summary View?
I'm wondering if anyone else is seeing this:it looks to me like the Responsible caller value in the allocation summary is misleading, and randomly dropping to stack frames. for example, right now i'm looking at a summary that has these three lines (among others):Retain -[Solution initWithContentsOfURL:] Retain -[Solution init] Release -[Solution init]seems line 2 and three match, right? think again. if you look at the full stack frames for each, you see this: 0 Fire -[Solution init] /Users/mh/Code/Fire/SharedProjectSystem/Solution.cs:0 1 Fire -[Solution initWithContentsOfURL:] /Users/mh/Code/Fire/SharedProjectSystem/Solution.cs:85 2 Fire +[Solution solutionWithContentsOfURL:] /Users/mh/Code/Fire/SharedProjectSystem/Solution.cs:664 3 Fire -[SolutionDocument readFromURL:] /Users/mh/Code/Fire/SharedCoreApp/SolutionDocument.cs:70 4 Fire -[SolutionDocument readFromURL:ofType:error:] /Users/mh/Code/Fire/SharedCoreApp/SolutionDocument.NSDocument.cs:78 5 AppKit -[NSDocument _initForURL:withContentsO
Replies
0
Boosts
0
Views
533
Activity
Apr ’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.
Replies
1
Boosts
0
Views
556
Activity
Jun ’16
Where did Keychain Access Groups entitlements go
In the 2020 WWDC changes to the Developer site, the section in Profiles for Keychain Access Groups went away. I understand that this entitlement is now rolled into App Groups, but I don't see my preexisting Access Group identifier listed on my page anymore. Where do I modify or remove the Access Group entitlement I've been using, or create new ones?
Replies
4
Boosts
0
Views
6.2k
Activity
Jul ’20
Match can't find groups if it is case insensitive
The shortcut app seems to have a bug regarding text match grouping when trying to match a lowercase string to a capital case one. The match happens, but the regular expression groups are not properly displayed. To replicate, create a shortcut with the following actions: Match d-(george) in 2-George check case-insensitive on Show Matches (this will show 2-George) Get Group At Index 1 in Matches Show Text This will not print anything
Replies
0
Boosts
0
Views
596
Activity
May ’23