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[iOS 26.1 beta 2] allowCamera restriction not working properly on both supervised and BYOD devices
Details: Device: iPhone 12 Pro Max System: iOS 26.1 beta 2 Issue Description: When testing MDM device restriction capabilities on iOS 26.1 beta 2, I found that the allowCamera restriction does not work as expected. Observed Behavior: • On a BYOD device: When allowCamera is set to false, the Camera and FaceTime apps disappear from the Home Screen, as expected. However, third-party apps (such as WeChat) can still access the camera and take photos. • On earlier versions (e.g. iOS 26.0.1): Setting allowCamera to false correctly blocks all apps, including third-party apps, from accessing the camera. Initially, I assumed Apple might have changed this restriction behavior so that allowCamera only applies to supervised devices. However, after testing on supervised devices, I found that even there, when allowCamera is set to false, the Camera and FaceTime apps are hidden, but third-party apps can still use the camera. This indicates that the restriction is not functioning correctly in iOS 26.1 beta 2. Expecta
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📱 [iOS 26.1 beta 2] allowCamera restriction not working properly on both supervised and BYOD devices
Details: Device: iPhone 12 Pro Max System: iOS 26.1 beta 2 Issue Description: When testing MDM device restriction capabilities on iOS 26.1 beta 2, I found that the allowCamera restriction does not work as expected. Observed Behavior: • On a BYOD device: When allowCamera is set to false, the Camera and FaceTime apps disappear from the Home Screen, as expected. However, third-party apps (such as WeChat) can still access the camera and take photos. • On earlier versions (e.g. iOS 26.0.1): Setting allowCamera to false correctly blocks all apps, including third-party apps, from accessing the camera. Initially, I assumed Apple might have changed this restriction behavior so that allowCamera only applies to supervised devices. However, after testing on supervised devices, I found that even there, when allowCamera is set to false, the Camera and FaceTime apps are hidden, but third-party apps can still use the camera. This indicates that the restriction is not functioning correctly in iOS 26.1 beta 2. Expecta
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Inconsistent results involving code signatures and bundles
I admit I am doing something unusual, and I would not be surprised if it didn't work. I am surprised, however, because after performing the equivalent operations on four bundles, all of the bundles work fine on macOS 15.6.1, but only two of them work on macOS 26.1 (beta 2). I don't know what causes the different outcomes. What I am trying to do is get Java to pass the macOS 26 AppKit UI SDK linkage checking without having to rebuild the JDK using Xcode 26. Rebuilding works for the latest SDK, but it is very inconvenient and may not work for older JDKs. It usually takes a while before the JDK build team successfully transitions to a new Xcode release. My approach is to use vtool to update the sdk version in the LC_BUILD_VERSION load command of $JAVA_HOME/bin/java, which is the launching executable for the JDK. I performed this operation on four JDKs: 25, 21, 17, and 11. (I ran vtool on macOS 15.) It was completely successful on JDK 25 and 21. The JDK launches correctly on macOS 15 and macOS 26. On mac
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Reply to DriverKit. Plug/unplug test leads to MacOS panic
Could you share your understanding of the crash and give any hints on how we can fix it? So, let me actually start by commenting on this: At first, we assumed that the issue is with hardware. The first thing to understand here is that DEXTs are FULLY capable of panicking the kernel and probably always will be, particularly PCI DEXTs. The main benefit DEXTs provide is that they DRAMATICALLY improve overall system security and risk by constraining the range of what it's POSSIBLE for a component to do. Your DEXT only has access to a very limited set of kernel data, so that's the ONLY kernel data your DEXT interacts with. It's possible for a network DEXT to disrupt the network stack, but it's very difficult to see how it would disrupt the file system. However, your DEXT is still being given access to many of the same resources it would have access to as a KEXT, and many of those resources are inherently dangerous. In the case of the PCI family, that issue is quite direct— I don't know of any way to build
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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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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 lim
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Reply to Building macOS apps with Xcode 26 on macOS 26 VM
Yeah! It's working! I have a macOS 26.0 host. In UTM I have a macOS 15.7 guest with a Provisioning UUID that has never been added as a device in the developer portal. In my developer account I added a new device with the guest VM's UUID. It's the longer style with lowercase hex digits. I then edited my existing manual provisioning profile with the new device. In Xcode (26.1 beta 2) I changed my app's signing from automatic to manual and referenced the updated provisioning profile. I built the app and copied the new app to a share I use for the VM. I ran the VM and tried to run the updated app. It failed. I missed one step that maybe some others might miss. In Xcode, go to Settings, Apple Accounts. Select your account. Then select your team. Then click on Download Manual Profiles. Once I did that, I rebuilt the app with the now properly updated provisioning profile and recopied the app to the share. And now the app runs in the guest VM! Key steps for those that are not starting from scratch: You need a VM with
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Reply to ResignFirstResponder doesn't animate keyboard dismissal on iOS26
You can either press the button, or press the return key on the keyboard. In both cases the keyboard abruptly disappears on both the simulator and iPhone 17 pro. Here's a video from the simulator: https://www.dropbox.com/scl/fi/8qc7is8iqpcjigta71qbq/keyboarddismissal.mov?rlkey=ftgnuoiu4x6mc8qokh5xw22b1&st=bpqb26b8&dl=0 I see others reporting similar issues here: https://github.com/facebook/react-native/issues/53626
Topic: UI Frameworks SubTopic: UIKit
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Xcode Cloud Fails on Export: App Store Connect Authentication Error
Hello, Our Xcode Cloud builds are successfully archiving but fail every time during the Export archive for app-store distribution step. The issue appears to be a persistent authentication failure with App Store Connect that we are unable to resolve. Primary Error: The build logs show a critical authentication failure. IDEDistribution.critical.log shows: App Store Connect request for store configuration failed for account Session Proxy Provider... Unable to authenticate with App Store Connect. DVTITunesSoftwareService.log specifies the error is DVTITunesSoftwareServiceFoundation.DVTServicesSessionProviderCredentialITunesAuthenticationContextError.proxy. The build process eventually terminates during the IDEDistributionSymbolsStep with an Rsync failed error, which we believe is a symptom of the earlier authentication failure. Troubleshooting Already Performed: We have already taken the following steps without success: Verified the account used for the integration has Account Holder an
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Reply to Building macOS apps with Xcode 26 on macOS 26 VM
I was able to test on my own, and in my tests it seems like provisioning profiles now work in the VM. But it took some extra work than just recreating the provisioning profile. My host is on macOS 15.7.1 (24G231). tl;dr try making a brand new VM such that it has a new provisioning UDID and try again My success case was as follows: I had an older clean install VM on macOS 15.7, but it does have the newer provisioning UDID style. I did not add it to my account until just now, however. I manually added the provisioning UDID to my devices list on the developer website. Now, the new device that I just registered on the website has an identifier with lowercase letters (e.g. c28165661eb...) (before, it looks like it automatically set it to uppercase). I recreated the provisioning profile, and built an app using Xcode on my host. I transferred the built app into the VM via a shared folder. I opened the app, and the app extension worked successfully (in my case, my app itself doesn't use a provisioning profile, but it
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AVPlayer stutters when using AVPlayerItemVideoOutput
We’re trying to build a custom player for Unity. For this, we’re using AVPlayer with AVPlayerItemVideoOutput to get textures. However, we noticed that playback is not smooth and the stream often freezes. For testing, we used this 8K video: https://deovr.com/nwfnq1 The video was played using the following code: @objc public func playVideo(urlString: String) { guard let url = URL(string: urlString) else { return } let pItem = AVPlayerItem(url: url) playerItem = pItem pItem.preferredForwardBufferDuration = 10.0 let pixelBufferAttributes: [String: Any] = [ kCVPixelBufferPixelFormatTypeKey as String: kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange, kCVPixelBufferMetalCompatibilityKey as String: true, ] let output = AVPlayerItemVideoOutput( pixelBufferAttributes: pixelBufferAttributes ) pItem.add(output) playerItemObserver = pItem.observe(.status) { [weak self] pItem, _ in guard pItem.status == .readyToPlay else { return } self?.playerItemObserver = nil self?.player.play() } player = AVPlayer(playerItem: p
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Seeking best practices for building a scalable food delivery app on iOS
Hi everyone, I’ve been exploring the process of building a food delivery app for iOS — something similar in concept to Uber Eats or DoorDash — and I wanted to get insights from this community on how to make it scalable, efficient, and user-friendly from a technical standpoint. I recently went through a really detailed guide on Food Delivery App Development that covers architecture, features, and cost estimation. It got me thinking about a few Apple-specific development challenges and opportunities: Optimizing real-time order tracking using MapKit + Core Location — how are developers here handling live driver updates efficiently without draining battery or hitting API rate limits? Push notifications & dynamic updates — what’s the best way to design these using Apple Push Notification service (APNs) to ensure timely delivery and minimal latency? Data synchronization across user roles (customer, restaurant, driver) — would CloudKit be a viable option for lightweight sync, or should we rely on a cust
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Reply to UI resizing / realigning issue in iOS 26 device building in xcode 26
Hi Emmanuel, Thank you for your response. I have reviewed the section you pointed out and did some changes. 1.Overriden prefersInterfaceOrientationLocked to return true 2. Implemented didUpdateEffectiveGeometry callback to force the layout After this I am seeing two issues After the presentation and dismiss UI is flickering. Looks like there is some animation happening but not sure what it is. This happens only on device and not observed in simulator. In landscape the safearea position is coming same as portrait. I have uploaded sample project here https://limewire.com/d/n3ioq#sc6PR1GkiG. Can you please have a look and help in fixing this? Steps to reproduce Build and run app in xcode 26 and iOS 26 device Select any row and observe the detail view presentation Select Back button and observe the presented view controller Thanks Harsha
Topic: UI Frameworks SubTopic: UIKit Tags:
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Reply to Fatal safeAreaInsets Error on Certain iOS/iPadOS 26 Devices
I found a bug when building with Xcode 26.0+. The system incorrectly assumes the TabBar is hidden on app startup, which causes a layout issue until the first device rotation. Workaround: In your target's Build Settings, set Status Bar Initially Hidden to NO. Also note that the UIStatusBarHidden key in your project's Info.plist directly controls the initial status bar visibility.
Topic: UI Frameworks SubTopic: UIKit Tags:
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