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Visual Studio Maui IOS

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Reply to Xcode26 build app with iOS26, UISplitViewController UI issue
Issue still in iOS 26.0.1 Reproduce with the sample app 'DiffableDataSourceSample' from https://developer.apple.com/documentation/uikit/updating-collection-views-using-diffable-data-sources. It runs with UISplitViewController columns populated when compiled for target iOS 18.2. It comes up empty when target is changed to iOS 26. Both builds run on iPad at iOS 26.0.1 My app was patterned on this sample app and is failing to show content in the same way. FB20611981 submitted
Topic: UI Frameworks SubTopic: UIKit Tags:
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EXC_BREAKPOINT in BKSHIDEventDeliveryManager during background scene invalidation
We're seeing a high velocity crash with our users in background tasks in an internal Apple Framework. It seems to have started in iOS 17/18, but has increased heavily in iOS 26+. EXC_BREAKPOINT · 0 BackBoardServices -[BKSHIDEventDeliveryManager _initWithConnectionFactory:forTesting:] 1 BackBoardServices ___44+[BKSHIDEventDeliveryManager sharedInstance]_block_invoke 2 libdispatch.dylib __dispatch_client_callout 3 libdispatch.dylib __dispatch_once_callout 4 BackBoardServices +[BKSHIDEventDeliveryManager sharedInstance] 5 UIKitCore _stateMachineSpec_block_invoke_3 6 UIKitCore _handleEvent 7 UIKitCore -[_UIEventDeferringManager _processEventDeferringActions:actionsCount:inScope:forDeferringToken:environments:target:addingRecreationReason:removingRecreationReason:forReason:] 8 UIKitCore -[_UIEventDeferringManager _sceneWillInvalidate:] 9 UIKitCore -[UIScene _invalidate] 10 UIKitCore -[UIWindowScene _invalidate] 11 UIKitCore -[UIApplication workspace:willDestroyScene:withTransitionContext:completi
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Best Practices for Binary Data (“Allows External Storage”) in Core Data with CloudKit Sync
Hello Apple Team, We’re building a CloudKit-enabled Core Data app and would like clarification on the behavior and performance characteristics of Binary Data attributes with “Allows External Storage” enabled when used with NSPersistentCloudKitContainer. Initially, we tried storing image files manually on disk and only saving the metadata (file URLs, dimensions, etc.) in Core Data. While this approach reduced the size of the Core Data store, it introduced instability after app updates and broke sync between devices. We would prefer to use the official Apple-recommended method and have Core Data manage image storage and CloudKit syncing natively. Specifically, we’d appreciate guidance on the following: When a Binary Data attribute is marked as “Allows External Storage”, large image files are stored as separate files on device rather than inline in the SQLite store. How effective is this mechanism in keeping the Core Data store size small on device? Are there any recommended size thresholds or known limits for h
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Use CCID interface instead of CryptoTokenKit API
Hi, Is it possible for a macOS (or iOS/ipadOS) app to communicate with a CCID-compliant reader using the CCID interface (i.e., directly sending the PC_TO_RDR_* messages) instead of using the CryptoTokenKit API? Apple's CCID driver (/System/Library/CryptoTokenKit/usbsmartcardreaderd.slotd) seems to support all the PC_TO_RDR and RDR_TO_PC messages: https://blog.apdu.fr/posts/2023/11/apple-own-ccid-driver-in-sonoma/#enable-my-ccid-driver The background for this question is that we develop smartcard products and we'd like to use the finer grained settings provided by the CCID specification for testing/demo purposes. Thank you.
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Reply to PCIDriverKit entitlements during development
I was asked to follow up on FB19449747 after this was supposedly fixed, so I did. I can't see a DriverKit PCI Transport (development) entitlement in the list of available Capabilities. Huh. Can you double-check on the portal just to be sure? I've checked on three different teams I have access to, and all of them are showing it. A few things to note: It's actually called DriverKit PCI (development), simply to keep the name length a bit more manageable. I just noticed that it doesn't currently include the extra Development only. Learn more Provisioning support required. label on the portal (I'm working on fixing that). I also noticed that it's offering iOS as a platform, which turned out to be one example of a much broader bug (r.162380702). It turns out that several DriverKit entitlements also include extra platforms, which means they can be included in targets they should not be included with. I don't think including them will actually cause any problems (macOS will just ignore them), but it's defini
Topic: Code Signing SubTopic: Entitlements Tags:
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Reply to Weird behavior with ContentUnavailableView
Thank you for the post. I noticed that you have posted the same issue again, this time with a link to the code. My recommendation, if I may, is to create a focused and simple project based on ContentUnavailableView https://developer.apple.com/documentation/swiftui/contentunavailableview. This project should demonstrate the exact behavior on iOS 26 and include a link to the code. This approach will make it easier to file a bug based on the project. If so, please share a link to your test project. That'll help us better understand what's going on. If you're not familiar with preparing a test project, take a look at Creating a test project. Once you open the bug report, please post the FB number here for my reference. If you have any questions about filing a bug report, take a look at Bug Reporting: How and Why? Hope all this helps. Please let me know when is filed for me to check. Resources: https://developer.apple.com/documentation/TechnologyOverviews/adopting-liquid-glass Albert Pascual
  Worldwide
Topic: UI Frameworks SubTopic: SwiftUI Tags:
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Reply to UIBarButtonItem alignment in UIToolbar on iOS 26 in UIDesignRequiresCompatibility mode
Thank you for your post. It appears that you are developing a UIToolbar in Objective-C. How did you attempt to utilize SwiftUI or Storyboards? In Objective-C, the UIBarButtonItem appears to render sequentially without constraints. You may need to incorporate constraints in code as well. However, I concur that the new version should not differ from the previous one. Have you attempted to use it in the latest beta of iOS? Do you observe any discrepancies? Could you kindly provide a concise focused sample that illustrates the problem? If so, please share a link to your test project. That'll help us better understand what's going on. If you're not familiar with preparing a test project, take a look at Creating a test project. Albert Pascual
  Worldwide Developer Relations.
Topic: UI Frameworks SubTopic: UIKit Tags:
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scenekit is deprecated but realitykit is for special computing what should i use ?
hello i am new to apple ecosystem and development i have some coding experience with c# now i like to develop my game for iphone 16 and up(due to ability to run ai models) but i am having hard time figuring out what to use there is a lot of resources for scene-kit but on its doc page it says its deprecated so i look at the reality-kit docs and tutorials and its strictly tells how to develop for visionos and i am really confused about this since there is no tutorials that shows how to develop a game for ios with reality-kit that does not focus visionos. i just want to develop for iphone 16 and up but i cant find resources focuses at that.
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Updated DetectHandPoseRequest revision from WWDC25 doesn't exist
I watched this year WWDC25 Read Documents using the Vision framework. At the end of video there is mention of new DetectHandPoseRequest model for hand pose detection in Vision API. I looked Apple documentation and I don't see new revision. Moreover probably typo in video because there is only DetectHumanPoseRequst (swift based) and VNDetectHumanHandPoseRequest (obj-c based) (notice lack of Human prefix in WWDC video) First one have revision only added in iOS 18+: https://developer.apple.com/documentation/vision/detecthumanhandposerequest/revision-swift.enum/revision1 Second one have revision only added in iOS14+: https://developer.apple.com/documentation/vision/vndetecthumanhandposerequestrevision1 I don't see any new revision targeting iOS26+
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App occasionally fails to connect to Access Point (iPhone17 / iOS26)
Hi, My app uses the NetworkExtension framework to connect to an access point. For some reason, my app occasionally fails to find and/or connect to my AP (which I know is online and beaconing on a given frequency). This roughly happens 1/10 times. I am using an iPhone 17, running iOS 26.0.1. I am connecting to a WPA2-Personal network. In the iPhone system logs, I see the following: Oct 10 10:34:10 wifid(WiFiPolicy)[54] : Dequeuing command type: Scan pending commands: 0 Oct 10 10:34:10 wifid(WiFiPolicy)[54] : __WiFiDeviceCopyPreparedScanResults: network records count: 0 Oct 10 10:34:10 kernel()[0] : wlan0:com.apple.p2p: WiFi infra associated, NAN DISABLED, , DFS state Off, IR INACTIVE, llwLink ACTIVE, RTM-DP 0, allowing scans Oct 10 10:34:10 kernel()[0] : wlan0:com.apple.p2p: isScanDisallowedByAwdl[1148] : InfraScanAllowed 1 (RTModeScan 0 NonSteering 0 assistDisc 0 HTMode 0 RTModeNeeded 0 Immin 0 ScanType 1 Flags 0 ScanOn2GOnly 0 DevAllows2G 1) Oct 10 10:34:10 kernel()[0] : wlan0:com.apple.p2p: IO80211
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Reply to Unable to use Bluetooth in watchOS companion app if iOS uses AccessorySetupKit
There's an interesting update in the documentation for ASKit AccessorySetupKit is available for iOS and iPadOS. In watchOS 26 and later, if someone sets up an accessory with your iOS app by using AccessorySetupKit, a companion watchOS app can also use CoreBluetooth to communicate with the new accessory and any other accessories. I was playing so far, in watchOS 26, with: retrieveConnectedPeripherals(withServices: retrievePeripherals(withIdentifiers: But with no luck atm to make it work. I can confirm instead that now that if I run your app @SuperTurboRyan I can use ASKit in iOS and scan in watchOS without hitting anymore the permission error.
Topic: Privacy & Security SubTopic: General Tags:
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Taking Down an App with Active Subscriptions - Feasibility and Best Practices
Hi everyone, I recently acquired an app through an acquisition transaction. The process involved sending funds to an escrow service, ... unfortunately, the day I did that, the seller received an app transfer filter (apparently due to a spike in refund requests). As a result, I now own the codebase and Android version of the app, but I do not have access to the iOS version under the original developer account. My Questions: 1. Feasibility: Is it possible to take down or disable the existing iOS app (which has active subscribers) and republish it under my own Apple Developer account? If so, what are the steps and potential pitfalls? 2. Subscriptions: How would this transition affect active subscribers? Can I migrate them to a new app, or would they need to resubscribe? 3. Best Practices: Is this approach advisable, or are there better ways to handle this situation (e.g., negotiating with the seller, contacting Apple Support, etc.)? Additional Context: I have full access to the codebase and bac
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