A Summary of the WWDC25 Group Lab

I am currently having a nightmare with Xcode trying to set up App Groups I previously had it set up but since I upgraded to Xcode 7.3 it has now broken. I get the error message You don't have sufficient permissions I haven't enrolled in the developer program but I know app groups you don't need to use them. This is what is shown inside Xcode inside the permissions.Image of problem

We recently added keychain-access-group to our macOS app but the app failed to open in big sur (macOS 11). It works fine in Monterey and Ventura. The crash log shows. Exception Type: EXC_CRASH (Code Signature Invalid) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Termination Reason: Namespace CODESIGNING, Code 0x1 Here is our entitlement and provision profile codesign -d --entitlements <plist version=1.0> <dict> <key>com.apple.security.device.audio-input</key><true/><key>com.apple.security.device.camera</key><true/> <key>keychain-access-groups</key> <array> <string>Q76YUSCMX8.com.veevasystems.crmdesktop</string> </array> </dict> </plist> The provision profile shows security cms -D -i <key>ApplicationIdentifierPrefix</key> <array> <string>Q76YUSCMX8</string> </array> ... <key>Entitlements</key> <dict>

A weird window popped up saying Battery 3 Demo Installer needs permission to access system. Tracing it to:MusicTechFocus/Music Tech Focus Logic Pro/Plug-in demo versions/Battery 3 Demo Installer.appApparently it was triggered by Spotlight Search.macOS Sierra Version 10.12 Beta (16A270f).That file has been there for years. Don't know why it decided to popup.12:10:45.416372 -0700Battery 3 Installergetgrouplist called triggering group enumerationcom.apple.message.value: 50com.apple.message.domain: com.apple.system.libinfocom.apple.message.result: noopcom.apple.message.signature: getgrouplistSenderMachUUID: 00000000-0000-0000-0000-000000000000

According to upcoming privacy manifest document, NSUserDefaults is only allowed for a use for the app itself. It is serious for developers who makes App Extensions. https://developer.apple.com/documentation/bundleresources/privacy_manifest_files/describing_use_of_required_reason_api CA92.1 Declare this reason to access user defaults to read and write information that is only accessible to the app itself. This reason does not permit reading information that was written by other apps or the system, or writing information that can be accessed by other apps. Developers, please submit a request to add the permission of App Group. https://developer.apple.com/contact/request/privacy-manifest-reason/

In a compute (kernel) function, is there an implicit ordering to threadgroup execution.Say I have a 32xN buffer. Take following trivial kernel (ignoring boundary conditions):kernel void example(device uint *buffer [[ buffer(0) ]], const uint2 pos [[ thread_position_in_grid ]]) { uint index = pos.y * N + pos.x; buffer[i - 1] = buffer[i] buffer[i + 1] = 0; }If we dispatch that kernel in N 32x1 threadgroups, is there any way that the thread groups are executed left-to-right? i.e. the resulting buffer is all 0 (once again, ignoring the boundary conditions).Thanks

Hello, I have multiple apps that i would like to login with apple login connected to same backend. I enabled sign in with apple on all and told them to group with primary app id which is one of them. I went and created 1 service id and key and used that on the backend to login the user. I can login fine on the primary app id but not on the grouped ones. Am I missing anything setup wise?

I am unable to add a Group to my app's TestFlight build. Steps: In App Store Connect, Go to TestFlight > Build # > Add Group (Group + button) Add 'Export Compliance Information' Click on 'Start Internal Testing' When following these steps, the entire screen reloads, however navigating back to the same screen shows that no Groups have been added to the build. A friend who is on the same account is able to follow these steps successfully. Is there something we should be checking to allow me to do this?

1.I am applying for APP ID I found some difference between OSX and iOSin iOS it has the key of APP Groups but in OSX do not have the key of APP Group2. When I put the Mac Client submitted to the app store It returns error messagevalue com.test.group for key com.apple.security.application-groups is not supported.3.When I was in the iOS client handle data interaction between app and appex i use the key of APP Group but I am on a MAC client, said the key value is not supported on macOSthat MAC app and data interaction between appex should now how to deal with?anyone can help me?Thank you very much.

Hi, I have an app group that worked fine between my watch and iPhone using Swift 1. Now, however, nothing is saving to my app group when I use the same code to save and synch the data (and thus nothing appears on my watch).I believe the relevant code is here://in the AppDelegate var sharedData = NSUserDefaults(suiteName: group.RxRemindMe)//in my VC NSKeyedArchiver.setClassName(RxRemindMe.Medication, forClass: Medication.self) NSKeyedUnarchiver.setClass(Medication.self, forClassName: RxRemindMe.Medication) appDelegate.sharedData!.setObject(savedAsData, forKey: TheMedicationsShared) appDelegate.sharedData!.synchronize()if I run the same .setObject command on a non-shared userDefault object, I see bytes saved (size changes to some positive bytes) and my phone app can access the data. However, when I execute line 4 above via the shared group object, the object remains nil in size and nothing has changed. I thus can't recall the data either on the phone or on the watch. Is this a bug in

Hi everyone, I'm facing an issue where I cannot write a file to a shared App Group container in my tvOS app when running on a real device. My code works perfectly on the simulator, but fails on a physical device with a permissions error. I’ve set up an App Group with a custom identifier (e.g., group.), and it’s correctly configured in the Capabilities section of Xcode for both my main app and widget targets. Here’s the code I’m using to save a test file: func saveTestFile() { guard let groupURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: group.) else { print(Couldn't access the Group URL.) return } let containerURL = groupURL.appendingPathComponent(Library, isDirectory: true) if FileManager.default.isWritableFile(atPath: containerURL.path) { print(Directory IS writable) } else { print(Directory IS NOT writable) } let fileURL = containerURL.appendingPathComponent(test.txt) let content = Hello App Group! do { try content.write(t

selecting the Facebook app from the FamilyActivityPicker returns an ApplicationToken. When adding that token to a ManagedSettingsStore's shield.applications set, both Facebook and the Facebook Messenger Kids apps gets shielded, even though the latter was not selected from the picker. (Interestingly, the Facebook Messenger app does not get shielded - just the kids version) The same is true for shielding the ApplicationToken produced by selecting the Amazon app. It causes the Alexa app to be shielded. I assume this is occurring because the apps share a keychain group, bundle id substring, or some other property that the picker is using, but how can I avoid this behavior?

Hi,We've got an App ID that's been around for a substancial amount of years now. Being in the process of developing new features I've tried enable App Groups service in developer portal for this AppID, but the checkmark is disable (i.e. not clickable) for this particular App ID. I can enable the service for other App IDs that were creared recently. I'm stuck wondering how I might start investigating the root cause for why App Groups are not available.Does anyone has an insight about what the root cause might be or what kind of diagnostics exist for me to investigate the issue?Thanks,Dmitry