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Problems recording audio on Tahoe 26.0 (Intel only)
I have some tried-and-tested code that records and plays back audio via AUHAL which breaks on Tahoe on Intel. The same code works fine on Sequioa and also works on Tahoe on Apple Silicon. To start with something simple, the following code to request access to the Microphone doesn't work as it should: bool RequestMicrophoneAccess () { __block AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType: AVMediaTypeAudio]; if (status == AVAuthorizationStatusAuthorized) return true; __block bool done = false; [AVCaptureDevice requestAccessForMediaType: AVMediaTypeAudio completionHandler: ^ (BOOL granted) { status = (granted) ? AVAuthorizationStatusAuthorized : AVAuthorizationStatusDenied; done = true; }]; while (!done) CFRunLoopRunInMode (kCFRunLoopDefaultMode, 2.0, true); return status == AVAuthorizationStatusAuthorized; } On Tahoe on Intel, the code runs to completion but granted is always returned as NO. Tellingly, the popup to ask the user to grant microphone access is never displ
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Reply to iPAD: achieve UserClient's privileges in background to have robust IOServiceAddMatchingNotification(...) as if ~[Background modes][Enable external communications].
So, first off, there are two critical details I need to clarify: Note in MAC OS everything (same DExt and UserClient-code) works fine in the background and in the foreground. macOS doesn't implement any of the app suspension semantics iPadOS does, which means you can't really compare the behavior of the two systems. That leads to here: 1 variation A) UserClientApp has attribute [Background modes][Enable external communications]. The external-accessory background mode is totally unrelated to DriverKit and isn't actually doing anything in your app. It allows apps using the ExternalAccessory framework to communicate with their accessory in the background, but that framework (iOS 3.0) and the background mode (iOS 4.0) are MUCH older than DriverKit. Making this as explicit as possible: B) A way to pursue Apple-store to accept (without MFI) an UserClientApp with [Enable external communication]. ...adding external-accessory is not changing ANYTHING about how your app wakes/sleep in the background. You will
Topic: App & System Services SubTopic: Drivers Tags:
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Reply to Xcode Signing Fails: Provisioning Profile "doesn't match" com.apple.developer.driverkit.userclient-access entitlement
Following up with this to clear up some odds and ends: Provisioning profile ... doesn't match the entitlements file's value for the ... userclient-access entitlement. One thing to be aware of her is that Xcode has a bias in the way it presents codesign errors where it assumes the Entitlement.plist is correct and the profile is wrong. However, in practice that's basically never the case with DriverKit entitlements and tends to lead to a lot of flailing trying to somehow fix the provisioning profile. This error ALWAYS means that the entitlement.plist doesn't match the profile. You fix that by: Changing the Entitlement.plist to match the profile. Changing the actual profile. That means either: Submitting a new request to correct any mistake (this case). IF you have been granted multiple instances of the same entitlement, then you switch to manual profile generation and manual codesigning. See this forum post for more details on that flow. However, the key here is to understand that this: ...our hypothesis is tha
Topic: App & System Services SubTopic: Drivers Tags:
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Submitting App for Review with Subscriptions
I've probably set the record for the most failed attempts to get my app approved. OK, so I've solved some more things, like straightening out my subscriptions and now, I can now sync my storekit2 developer settings with app connect for testing, and my manual file works as well. The part I don't get, is when I submit my app for approval, I'm told or read that I leave the Storekit file set to none, and Apple will work around that. On my last submission, since my code couldn't read the dev app store file because it was set to none, my code left the current view blank because I didn't write for that scenario, not really an oversight but more like a bad guess on how app store testing works. Today I wrote code to handle that scenario, to take it to my Paywall view, but without subscriptions since I can't load them without my dev StoreKit file. I replaced Subscriptions with a retry and reload button, and added a contact support link. Yes I'm frustrated, but still patient. I don't understand how my app can b
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Cluster not displaying in CarPlay POI template on iPhone 14 with iOS 26.0.1
I am experiencing an issue with the CarPlay POI template in my CarPlay application. On my iPhone 14 running iOS 26.0.1, the clustering of POIs on the CarPlay map is not displaying at all. However, this issue only affects this specific model and OS version. The same app works correctly on an iPhone 14 with iOS 18.5 and on an iPhone 16 Pro Max with iOS 26.0.1. There are no code changes between builds for each device.
Topic: UI Frameworks SubTopic: UIKit Tags:
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watchOS 26.0.2+ Health Data Sync Failure - Series 7 - FB20533870
I'm reporting a critical Health data synchronization failure that began immediately after updating from watchOS 18 to watchOS 26.0.2 (stable release) and persists in watchOS 26.1 beta 2. Bug Description: Complete failure of Health data sync from Apple Watch to iPhone Health app. All health metrics are being captured and stored locally on the watch but fail to sync to the paired iPhone. Affected Data Types: Activity rings (Move, Exercise, Stand) Heart rate measurements Sleep tracking data Workout data All other HealthKit data points Environment: Device: Apple Watch Series 7 Initial failure: watchOS 26.0.2 (23R362) - stable release Current: watchOS 26.1 beta 2 (23S5052c) Paired iPhone: iPhone 17 Pro Max, iOS 26.1 beta 2 (23B5052c) Bluetooth and Wi-Fi connectivity: Normal Watch pairing status: Connected and functional for all other features Reproduction: Updated Apple Watch Series 7 from watchOS 18 to watchOS 26.0.2 on September 30, 2025 Health data sync ceased completely starting Octo
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Adding App Icon to Xcode for Tahoe
I have designed a new icon for my app/Tahoe in Icon Composer (launched from within Xcode)but I simply cannot get it to show up. The documentation for Icon Composer spends a lot of time describing how to design the icons but goes distressingly vague/silent on how one might use it. It suggests that I should drag the file to Xcode and it will guide me as to where to put it. The app continues to use the old (pre-Tahoe) icon. I don't get any change of behaviour and I don't know what to name the file. I assume that there are no other settings that I have to change. I can't find anything on the web or in Apple's documentation: maybe I'm missing something obvious! My app is a working NSDocument-based Cocoa project. Any suggestions please. Tahoe 26.0.1, Xcode 26.0.1, Apple M1 Max MBP.
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Failed to set up credentials.
I received this message when trying to submit a build using Rork.com. Can anyone tell me what this is and how to fix it? There is a problem with the request entity - You are not allowed to create 'iOS' profile with App ID 'XXXXXXXX'. ✖ Failed to create Apple provisioning profile Error: build command failed.
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Reply to Failed to set up credentials.
You should check with the support resources provided by the 3rd party to get assistance with their software. Do Rork.com has a support channel? Are you able to demonstrate the issue in a test project created from one of Xcode's templates, and using only Apple APIs? Unless another developer in the forums has experience with the third-party and can provide assistance. Albert Pascual
  Worldwide Developer Relations.
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Reply to Flutter 3.35 iOS build fails on Apple Silicon (M3/M4): 'Flutter/Flutter.h' file not found
Are you able to demonstrate the issue in a test project created from one of Xcode's templates, and using only Apple APIs? If not, you should check with the support resources provided by Flutter to get assistance with their software. You can find tips on creating and sharing a test project in Creating a Test Project. Unless another developer in the forums has experience with the third-party and can provide assistance. Albert Pascual
  Worldwide Developer Relations.
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Flutter 3.35 iOS build fails on Apple Silicon (M3/M4): 'Flutter/Flutter.h' file not found
I'm on a MacBook Air 2025 M4 (Apple Silicon) using Flutter 3.35.5 on channel stable, Xcode 26.0.1, and CocoaPods 1.16.2. Actual Setup: Component Version macOS 15.0 Sequoia CPU Apple M4 (ARM64) Flutter 3.35.5 on channel stable Dart 3.9.2 DevTools 2.48.0 CocoaPods 1.16.2 Xcode 26.0.1 Build 17A400 Since updating Flutter from 3.24 → 3.35, iOS builds consistently fail with the following errors (not matter if simulation or real device, also ios version no matter): fatal error: 'Flutter/Flutter.h' file not found Error logs: /Users/myuser/.pub-cache/hosted/pub.dev/app_links-6.4.1/ios/app_links/Sources/app_links/AppLinksIosPlugin.swift /Users/myuser/.pub-cache/hosted/pub.dev/app_links-6.4.1/ios/app_links/Sources/app_links/AppLinksIosPlugin.swift:1:8 Unable to find module dependency: 'Flutter' import Flutter ^ flutter_native_splash /Users/myuser/.pub-cache/hosted/pub.dev/flutter_native_splash-2.4.6/ios/flutter_native_splash/Sources/flutter_native_splash/include/flutter_native_splash/FlutterNativeSplas
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Reply to Safari-like toolbar in visionOS
BTW, I can put a toolbar at the bottom of the window, but it isn't separated a fixed distance from the window like Safari's is. From my reading of Apple's HIG on toolbars, this is the proper place to put toolbar items in visionOS. Should I go with this design (which looks like Apple HIG's preferred design) as opposed to following Safari's design? struct ContentView: View { var body: some View { Text(This is some text) .toolbar { // .bottomOrnament only placement that works ToolbarItemGroup(placement: .bottomOrnament) { Button(Hello) { print(World) } Button(Goodbye) { print(cruel world) } } } } }
Topic: Spatial Computing SubTopic: General Tags:
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Safari-like toolbar in visionOS
I like the toolbar visionOS's Safari uses for back & forward page, share, etc. It floats above the window. My attempt to do this with ornaments isn't as satisfying as they partially cover the window. My attempts with toolbar haven't produced visible results. Is this Safari-style toolbar for visionOS exposed by Apple in the API's? If so, could someone point me to documentation or sample code? Thanks!
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Question about PT Framework channel tone behaviour
I've been wondering if there is a way to modify or even disable tones for indicating channel states. The behaviour regarding tones seems like a black box with little documentation. During migration to Apple's PT Framework we've noticed that there are few scenarios where a tone is played which doesn't match certain certifications. For example; moving from a channel to another produces a tone which would fail a test case. I understand the reasoning fully, as it marks that the channel is ready to transmit or receive, but this doesn't mirror the behaviour of TETRA which would be wanted in this case. I'm also wondering if there would be any way to directly communicate feedback regarding PT Framework?
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