I'm using a custom modifier called AutoSheetDetentModifier to automatically size a sheet based on its content. On iOS 26, it works as expected: the content height is measured correctly and the sheet shrinks to match that height. However, on iOS 16, 17 and 18, the same code doesn’t work. The content height is still measured, but the sheet does not reduce its height. Instead, the sheet remains larger and the content appears vertically centered. (Note that content() includes ScrollView) public struct AutoSheetDetentModifier: ViewModifier { @State private var height: CGFloat = 380 // default value to avoid bouncing public func body(content: Content) -> some View { content .modifier(MeasureHeightViewModifier(height: $height)) .presentationDetents([.height(height)]) } } public struct MeasureHeightViewModifier: ViewModifier { @Binding var height: CGFloat public func body(content: Content) -> some View { content .fixedSize(horizontal: false, vertical: true) .background( GeometryReader { geo -> Color in DispatchQueue.main.async { height = geo.size.height } return Color.clear } ) } } extension View { public func applyAutoSheetDetent() -> some View { self .modifier(AutoSheetDetentModifier()) } } public var body: some View { VStack { header() content() // includes ScrollView footer() } .background(Color.customGray) .applyAutoSheetDetent() } func content() -> some View { ScrollView { VStack { ForEach(items) { item in itemRow(item) } } } .frame(maxHeight: UIScreen.main.bounds.height * 0.7) } Screenshot from iOS 26 (working as expected): Screenshot from iOS 18 (not working): How can I make .presentationDetents(.height) shrink the sheet correctly on iOS 16–18, the same way it does on iOS 26?

I'm getting the following error when I try to make a dev build for iOS even though I am an admin: ✖ Failed to register bundle identifier Apple 403 detected - Access forbidden. This request is forbidden for security reasons - You currently don't have access to this membership resource. Not certain how to proceed from here

If an app is rated 4+, does it have any additional obligation due to the SB2420 beyond this rating on the AppStore ?

I'm trying to sync authentication data from my iOS app to a Safari Web Extension using App Groups, but the extension isn't consistently receiving the data. Setup: App Group: group.com.airaai.AiraApp (configured in both app and extension) iOS app writes auth data using UserDefaults(suiteName: "group.com.airaai.AiraApp") Extension's Swift SafariWebExtensionHandler reads from App Groups in beginRequest() Extension's JavaScript reads from browser.storage.local Problem: Extension popup always shows "logged out" even when: User is logged into main iOS app Auth data exists in App Groups (verified via native module logs) Handler successfully writes test values to extension storage Current Behavior: Handler CAN read from App Groups ✅ Handler CAN write test values to extension storage ✅ But auth data doesn't appear in browser.storage.local when popup checks ❌ Popup reads empty keys even though handler logged writing them Code: // Handler reads from App Groups guard let sharedDefaults = UserDefaults(suiteName: "groupName") else { return } let authData = sharedDefaults.string(forKey: "auth_data") // Handler writes to extension storage (tried multiple suite names) let extensionDefaults = UserDefaults(suiteName: Bundle.main.bundleIdentifier ?? "") extensionDefaults?.set(authData, forKey: "oauth_token") extensionDefaults?.synchronize() // Popup reads from storage browser.storage.local.get(['oauth_token']).then(data => { console.log(data); // Always empty {} }); What I've tried: ✅ App Groups properly configured in both targets ✅ Extension has App Groups capability enabled ✅ Multiple UserDefaults suite names (bundle ID, bundle ID + suffix) ✅ Delayed sync attempts in handler ✅ Comprehensive logging Questions: What is the correct UserDefaults suite name for Safari extension storage on iOS? When does beginRequest() get called? Can it be triggered manually? Is App Groups the right approach, or should I use a different pattern? Alternatives I've considered: Deep link/redirect method (app opens Safari with token in URL) Content script intercepts URL and sends to background script Is this a supported approach for iOS Safari extensions? Any guidance or examples would be greatly appreciated!

crash stack: Crashed: com.apple.main-thread 0 libsystem_pthread.dylib 0x90c thread_chkstk_darwin + 60 1 libsystem_pthread.dylib 0x90c ___chkstk_darwin + 60 2 CoreAutoLayout 0x14c4 -[NSISEngine _flushPendingRemovals] + 56 3 CoreAutoLayout 0x2de08 -[NSISEngine _coreReplaceMarker:withMarkerPlusDelta:].cold.1 + 64 4 CoreAutoLayout 0x15d78 -[NSISEngine _coreReplaceMarker:withMarkerPlusDelta:] + 204 5 CoreAutoLayout 0x2ce38 -[NSISEngine constraintDidChangeSuchThatMarker:shouldBeReplacedByMarkerPlusDelta:] + 108 6 CoreAutoLayout 0x15f1c -[NSISEngine tryToChangeConstraintSuchThatMarker:isReplacedByMarkerPlusDelta:undoHandler:] + 100 7 CoreAutoLayout 0x2fdbc -[NSLayoutConstraint _tryToChangeContainerGeometryWithUndoHandler:] + 252 8 CoreAutoLayout 0x3020c -[NSLayoutConstraint _setSymbolicConstant:constant:symbolicConstantMultiplier:] + 452 9 CoreAutoLayout 0x30378 -[NSLayoutConstraint setConstant:] + 84 10 UIKitCore 0x51c3c __74-[UIView(UIConstraintBasedLayout) _autoresizingConstraints_frameDidChange]_block_invoke + 140 11 UIKitCore 0x1841174 -[UIView(AdditionalLayoutSupport) _withUnsatisfiableConstraintsLoggingSuspendedIfEngineDelegateExists:] + 112 12 UIKitCore 0x51b28 -[UIView(UIConstraintBasedLayout) _autoresizingConstraints_frameDidChange] + 452 13 UIKitCore 0x2c894 -[UIView _constraints_frameDidChange] + 100 14 UIKitCore 0x18fac08 -[UIView(Geometry) setFrame:] + 576 15 UIKitCore 0x96712c -[UITabBar setFrame:] + 128 16 UIKitCore 0x1666f4 -[_UITabBarControllerVisualStyle updateTabBarLayout] + 360 17 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 18 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 19 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 20 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 21 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 22 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 23 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 24 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 25 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 26 UIKitCore 0x16671c -[_UITabBarControllerVisualStyle updateTabBarLayout] + 400 27 UIKitCore 0x16642c -[UITabBarController _prepareTabBar] + 128 28 UIKitCore 0x166a10 -[UITabBarController _layoutContainerView] + 376 29 UIKitCore 0x1677a8 -[UITabBarController __viewWillLayoutSubviews] + 28 30 UIKitCore 0x147078 -[UILayoutContainerView layoutSubviews] + 176 31 UIKit 0xb14a0 -[UILayoutContainerViewAccessibility layoutSubviews] + 60 for a more detail crash stack, can see attach file: crash.txt crash probabilistic happed after app enter background, and our app support landscape, when crash appear, the system method: /* This method is called when the view controller's view's size is changed by its parent (i.e. for the root view controller when its window rotates or is resized). If you override this method, you should either call super to propagate the change to children or manually forward the change to children. */ - (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id <UIViewControllerTransitionCoordinator>)coordinator API_AVAILABLE(ios(8.0)); is called; but for a normal not crash case, when enter background and rotate device, the viewWillTransitionToSize method is not called until app enter foreground; Are there any suggestions that can help solve this problem, thank you.

Hello everyone! I'm a newly graduated Computer Engineer living in Türkiye. I've been developing my skills in the iOS field for a while now. But sometimes I get lost and don't know what to do. I've just joined this community and have a request for you. I'd be very grateful if you could share your own advice, experiences you've had along the way, and how you successfully overcame them. I'm open to all kinds of positive or negative feedback. Self-improvement is paramount to me.

From https://developer.apple.com/forums/thread/803945?answerId=862153022#862153022, the testing of Age Range API was not available through xcode simulator back in Oct 2025. Is this available now? In particular: Is requestAgeRange testing available through simulator? Is requestAgeRange testing with sandbox account available through simulator? Is isEligibleForAgeFeatures available through simulator? Is isEligibleForAgeFeatures testing with sandbox account available through simulator? If the answer is "yes" to any of the above, which version of the xcode and ios version should I use? So far I didn't get any of the above working on the simulator, and I can't find any documentation on the answers above. Thank you!

The Paste button (using UIPasteControll) located on UINavigationBar is not shown at application startup on iOS/iPadOS 26. This issue will disappear when device is rotated or window size is changed. And this issue does not occur on iOS / iPadOS 18 and earlier. I uploaded the sample project to github at the following URL. https://github.com/gpn-galapagos/PasteButtonApp.git Has anyone had the same issue or knows a workaround?

Since updating to Tahoe and Xcode 26 I have found that the UISplitViewController.showDetailViewController() is not working in the iPhone version of my app (it is a universal app). I'm just trying to show a detail view after a tap on a UITableView item. The iPad versions are all working correctly. Has anyone else experienced this or have any advice about what may have changed? Thanks in advance.

It seems to be that the functionality of the method setViewController:forColumn: in the column-style layout of a UISplitViewController has changed. iOS 18: setViewController:forColumn: pushes a new view controller onto the UINavigationController if it existed before the call. iOS 26: setViewController:forColumn: sets or replaces the view controller with a new view controller as a root of a new UINavigationController. My questions: what is the intended behavior? I did not find any documentation about a change. how do I replace in iOS 18 the old view controller with the new view controller passed to setViewController:forColumn:?

Hello everyone! I found a weird behavior with the animation of Menucomponent on iOS 26.1 When the menu disappear the animation is very glitchy You can find here a sample of code to reproduce it @available(iOS 26.0, *) struct MenuSample: View { var body: some View { GlassEffectContainer { HStack { Menu { Button("Action 1") {} Button("Action 2") {} Button("Delete", role: .destructive) {} } label: { Image(systemName: "ellipsis") .padding() } Button {} label: { Image(systemName: "xmark") .padding() } } .glassEffect(.clear.interactive()) } } } @available(iOS 26.0, *) #Preview { MenuSample() .preferredColorScheme(.dark) } I did two videos: iOS 26.0 iOS 26.1 Thanks for your help

Hello, I am building a Content Filter app for iOS and would like to get access to some information about network connections that are happening on the device. I managed to have the handle(_ report: NEFilterReport) method of my NEFilterControlProvider called, but the bytesOutboundCount and bytesInboundCount properties of the report are always 0. How can I have the real byte count of the connection ?

Hi everyone, I want users not to see the system context menu when long-pressing text on a page in Safari on iOS. I found on MDN that the CSS property -webkit-touch-callout: none; can achieve this. But in reality, it doesn't really work. MDN documents URL: https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/-webkit-touch-callout Here’s a minimal example: function preventIOSSafariContextMenu() { if (document.getElementById(STYLE_ELEMENT_ID)) return; if (!IS_TOUCH_DEVICE) return; const style = document.createElement("style"); style.id = STYLE_ELEMENT_ID; style.textContent = ` html, body { -webkit-touch-callout: none !important; } `; (document.head || document.documentElement).appendChild(style); } The context menu persists. Has anyone else encountered this? Is this an intentional change in WebKit, or could it be a regression? If it’s intentional, is there a recommended alternative? Thanks in advance for any insights!

We are facing an issue: push notifications are not being received. We are using the Marketing Cloud SDK for push notifications. On install, the app correctly registers for push notifications. We pass the required information to Marketing Cloud — for example, contact key, token, etc. Marketing Cloud also confirms that the configuration is set up, and we have tried sending push notifications with proper delivery settings. The issue is that after some time, the device gets automatically opted out in the Marketing Cloud portal. When we consulted their team, they said this is caused by the “DeviceTokenNotForTopic” error received from APNs. I have verified the certificates and bundle ID from my end — everything looks correct. Device: iPhone 15, iPhone 17 iOS: 18.7.2, 26.1

Device: iPhone 17 Pro iOS Version: iOS 26.1 Camera: Ultra-wide (0.5x) using AVCaptureSession Our camera app freezes on iPhone 17 when switching frame rates (30fps ↔ 60fps). This works fine on iPhone 16 Pro and earlier. What We've Observed: Freeze happens on frame rate change - particularly when stabilization was enabled Thread.sleep is used - to allow camera hardware to settle before re-enabling stabilization Works on older iPhones - only iPhone 17 exhibits this behavior Console shows these errors before freeze: 17281 <<<< FigXPCUtilities >>>> signalled err=18446744073709534335 <<<< FigCaptureSourceRemote >>>> err=-17281 Is Thread.sleep on the main thread causing the freeze? Should all camera configuration be on a background queue? Is there something specific about iPhone 17 ultra-wide camera that requires different handling? Should we use session.beginConfiguration() / session.commitConfiguration() instead of direct device configuration? Is calling setFrameRate from a property's didSet (which runs synchronously) problematic? Are the FigCaptureSourceRemote errors (-17281) indicative of the problem, and what do they mean?

Hello! What UIKit API enables you to add a view below the navigation bar and extend the scroll edge effect below it in iOS 26? safeAreaBar is how you do it in SwiftUI but I need to achieve this design in my UIKit app (which has a collection view in a view controller in a navigation controller). struct ContentView: View { let segments = ["First", "Second", "Third"] @State private var selectedSegment = "First" var body: some View { NavigationStack { List(0..<50, id: \.self) { i in Text("Row \(i + 1)") } .safeAreaBar(edge: .top) { Picker("Segment", selection: $selectedSegment) { ForEach(segments, id: \.self) { Text($0) } } .pickerStyle(.segmented) .padding(.horizontal) .padding(.bottom, 8) } .navigationTitle("Title") .navigationBarTitleDisplayMode(.inline) } } }

When a UIVisualEffect with glass effect view is added with opacity 0, it remains hidden as expected. But when changing it back to 1 should make it visible, but currently it stays hidden forever. The bug is only reproducible on iOS 26.1 and iOS 26.2. It does not happen on iOS 26.0. The issue is also not reproducible with UIBlurEffect. Only happens for Glass effect Here is the repro link

Hi, We recently updated our app icon, but the push notification icon has not been updated on some devices. It still shows the old icon on: • iPhone 16 Pro — iOS 26 • iPhone 14 — iOS 26 • iPad Pro 11” (M4) — iOS 18.6.2 • iPhone 16 Plus — iOS 18.5 After restarting these devices, the push notification icon is refreshed and displays the new version correctly. Could you advise how we can ensure the push notification icon updates properly on all affected devices without requiring users to restart? Thank you.

The API we used: NSURL *url = [NSURL URLWithString:@"App-Prefs:INTERNET_TETHERING"]; The link provided by Apple engineer: https://developer.apple.com/forums/thread/761314 I did not find any URL in the link that leads to the secondary menu of system settings. Does this suggest that iOS 26 does not support this functionality? Moreover, is it possible that versions of iOS 18 and earlier may also not support this behavior in the future?

I am making an iOS step counting app and I have included a widget in the design. I would like to get the widget to pull data from the main app to display step count etc so I created a bundle id for the widget and have been trying to use a group id to link them together. The group capabilities for both seem to be set up/enabled properly with the same App Groups id, but I've been getting an error in xcode which says, " 'Provisioning Profile: "BUNDLE_ID" doesn't include the com.apple.developer.security.application-groups entitlement.' Try Again But the identifiers do have the App Group id enabled. I have tried automatic signing, manual signing with generated profiles, unchecking and rechecking auto-signing, removing and re-adding the group capability. Creating a new bundle id from scratch, creating a new group id from scratch. Always I get the error. I've really pulled my hair out troubleshooting this and would appreciate support. I'm happy to answer and questions or share details. Thank you.