My app doesn't respond on iPhone Air iOS 26.1. After startup, my app shows the main view with a tab bar controller containing 4 navigation controllers. However, when a second-level view controller is pushed onto any navigation controller, the UI freezes and becomes unresponsive. The iPhone simulator running iOS 26.1 exhibits the same problem. The debug profile shows CPU usage at 100%. However, other devices and simulators do not have this problem.

When I called the setTabBarHidden method and passed in false, I found in the KVO callback of the tabBar.isHidden property that the value of newValue was true. Why are the values of the two different? Is this a bug? Here is the debug stack.

I am looking for a way to change the liquid glass background colors on UIBarButtonItems. Setting tintColor does what I want for a bar button item when it is both the default button and it is enabled. But it does not seem to do anything for disabled buttons or non-prominent buttons. Also, is there a way to apply such a change using a UINavigationBarAppearance or a UIBarButtonItemAppearance? If I cannot change this liquid glass color, I might need to disable liquid glass on these by setting hidesSharedBackground to true. Is there a way to do this globally within the app (without using UIDesignRequiresCompatibility), or with something like UINavigationBarAppearance or UIBarButtonItemAppearance? Thank you. John

With iOS 26.1 and beta 26.2, there is a crash seen for _UIButtonBarItemLayout update. Has anyone experienced this crash or has any information on this Thread 0 name: Thread 0 Crashed: 0 libobjc.A.dylib 0x000000019daa144c objc_retain + 16 1 UIKitCore 0x00000001a680b184 -[_UIButtonBarItemLayout _updateItemView] + 360 2 UIKitCore 0x00000001a6d5ddcc -[_UIButtonBarItemLayout minimumLayoutWidthGivenMinimumSpaceWidth:] + 28 3 UIKitCore 0x00000001a6d5eeec -[_UIButtonBarItemGroupLayout recalculateLayoutWidthsGivenItemSpaceWidth:] + 304 4 UIKitCore 0x00000001a6d4ca28 -[_UIButtonBar _widthInfoForLayout:] + 188 5 UIKitCore 0x00000001a68093b4 -[_UIButtonBar _layoutBar] + 108 6 UIKitCore 0x00000001a6809328 __42-[_UIButtonBarStackView updateConstraints]_block_invoke + 44 7 UIKitCore 0x00000001a7dbea8c +[UIView(Animation) performWithoutAnimation:] + 76 8 UIKitCore 0x00000001a68092d0 -[_UIButtonBarStackView updateConstraints] + 112 9 UIKitCore 0x00000001a64707e8 -[UIView(AdditionalLayoutSupport) _previousFittingSizeInfo] + 784 10 UIKitCore 0x00000001a6470508 -[UIView(AdditionalLayoutSupport) _previousFittingSizeInfo] + 48

Fatal Exception: NSInternalInconsistencyException Cannot remove an observer <WKWebView 0x135137800> for the key path "configuration.enforcesChildRestrictions" from <STScreenTimeConfigurationObserver 0x13c6d7460>, most likely because the value for the key "configuration" has changed without an appropriate KVO notification being sent. Check the KVO-compliance of the STScreenTimeConfigurationObserver [class.] I noticed that on iOS 26, WKWebView registers STScreenTimeConfigurationObserver, Is this an iOS 26 system issue? What should I do?

We have an iOS app running on macOS (not Mac Catalyst). The preferences are in a dedicated UIWindowScene. We don't want this scene to be restored, so when you start the app the preferences shouldn't be visible. How can we prevent the UIWindowScene restoration? Alternatively, if we can't prevent it, how can we ensure the main window scene is in front of the preferences window scene on app start?

Hello. I have an 12 year old app that still has some objective-c code in it. I have a place where i have a flip animation between 2 view controllers that looks like this: [UIView transitionFromView:origView toView:newViewController.view duration:0.5 options:UIViewAnimationOptionTransitionFlipFromRight completion:nil]; It has looked like this since 2012 at least. In our production release, it works prior to 26.1, but in 26.1 and 26.2, the flip is off-center and looks weird. it's like both edges flip the same way. It's a little bit hard to explain. If seen at least 2 other app store apps that i have installed behave this way too, from 26.1 and onwards. Anyone else seen this? Is there anything that can be done about it? Thankful for thoughts.

I am trying to address an issue with my app’s share sheet where, when the user sends a URL to either Apple Reminders or OmniFocus, the receiving app does not get a title. So I am updating my share sheet code to use UIActivityItemsConfiguration. I have this code: let title = "Golden Hill Software" let url = URL(string: "https://www.goldenhillsoftware.com/")! let itemProvider = NSItemProvider() itemProvider.registerObject(ofClass: URL.self, visibility: .all) { (handler) in handler(url, nil) return nil } let config = UIActivityItemsConfiguration(itemProviders: [itemProvider]) config.metadataProvider = { (key) in if key == .title || key == .messageBody { return title } else { return nil } } let viewController = UIActivityViewController(activityItemsConfiguration: config) self.present(viewController, animated: true) This works with some share sheet extensions. But when I choose the Ivory share extension, Ivory creates a post with a URL that starts with bplist…. When I choose the Open in Chrome action extension, Chrome says “Chrome cannot handle this link”. Can someone help me understand what I am doing wrong here? (edited)

I have checked the sample project from the documentation page and noticed there is an issue with image/images not being preselected. The issue happens on iOS 26.1 and above (checked iOS 26.2 beta). I couldn't find any change to the PhotoPicker in the documentation.

Is the Cancel button intentionally removed from UISearchBar (right side)? Even when using searchController with navigationItem also. showsCancelButton = true doesn’t display the cancel button. Also: When tapping the clear ("x") button inside the search field, the search is getting canceled, and searchBarCancelButtonClicked(_:) is triggered (Generally it should only clear text, not cancel search). If the search text is empty and I tap outside the search bar, the search is canceled. Also when I have tableview in my controller(like recent searches) below search bar and if I try to tap when editing started, action is not triggered(verified in sample too). Just cancellation is happening. In a split view controller, if the search is on the right side and I try to open the side panel, the search also gets canceled. Are these behaviors intentional changes, beta issues, or are we missing something in implementation?

Hi team, I've been trying to extend the animation when we call the function setVisibleMapRect, we can use UIView.animate to lengthen the animation time, but one thing that I found not working is that when I extend the animation to 3, 5, or 10 seconds, and the changes is still ongoing and there's a gesture performed, the map will completely ignore the gesture. Causing the map to be having this kind of like "delayed" or "freeze" experience for the user. The map will immediately move to the final rect and ignores the user gesture. I've been checking on this problem for a week now and I'm quite stuck. I've tried using CADisplayLink to manually animate the camera per system fresh rate, it works very well, I can stop the camera movement anytime there are touches, but it causes the resource CPU spikes. Removing the animation layers recursively on sublayers and subviews also doesn't help. While storing the animation into a UIViewPropertyAnimator and use stopAnimation will always ignores user first interactions too while also animating the camera to the final position (which is not expected).

I'm experiencing intermittent crashes on iOS when launching a Flutter app after it was killed from the app switcher. The app works fine when resumed from background. Environment: Flutter 3.38.3 Crash signature: EXC_BAD_ACCESS (SIGBUS) Stack overflow in (null) compare:options:range:locale: > Thread 0: CFStringGetLength → CFStringCompareWithOptionsAndLocale → UIKitCore ( 85+ inlined recursive calls) What I've tried: Increased stack size to 64MB (-Wl,-stack_size,0x4000000) - didn't help Disabled iOS State Restoration - didn't help Added snapshot overlay in applicationWillResignActive - helped for background issue, but not cold start Key observation: The crash happens intermittently. Sometimes the app opens on 2nd attempt, sometimes on 5th. This suggests a race condition between Flutter engine initialization and iOS view hierarchy traversal. Question: Is there a way to delay iOS view hierarchy operations until Flutter is fully initialized? Any help appreciated!

Question: How to prevent Flutter app crash on iOS 18 during cold start when iOS traverses view hierarchy before Flutter engine is fully initialized? Help needed: Looking for a way to either delay iOS view hierarchy traversal or ensure Flutter is fully initialized before iOS lifecycle callbacks fire. Problem Summary Our Flutter app crashes on cold start for approximately 1-2% of iOS users. The crash occurs specifically on iOS and only under these exact conditions: When crash happens: User opens app and uses it normally ✅ User minimizes app (goes to background) ✅ User returns to app from background ✅ (works fine) User kills app from app switcher (swipe up to close) User taps app icon to launch again → CRASH ❌ Key observations: Crash is intermittent - app may open on 2nd, 3rd, or 5th attempt 100% reproducible on affected devices by repeating kill→launch cycle ~98% of users have no issues Environment Flutter: 3.38.3 Crash Logs (from Sentry) Crash Type 1: Stack Overflow (most common) OS Version: iOS 18.7.2 (22H124) Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: BUS_NOOP at 0x000000016ad5be90 Application Specific Information: compare:options:range:locale: > Stack overflow in (null) Thread 0 Crashed: 0 CoreFoundation CFStringGetLength 1 CoreFoundation CFStringCompareWithOptionsAndLocale 2 CoreFoundation 3 libsystem_c bsearch 4 CoreFoundation 5 UIKitCore ... 15-99: UIKitCore 0x30e177148 [inlined] // 85+ recursive calls Crash Type 2: Use-After-Free Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: SEGV_NOOP at 0x0500007f14000000 KERN_INVALID_ADDRESS at 0x500007f14000000 Thread 0 Crashed: 0 libobjc.A.dylib objc_retainAutoreleaseReturnValue 1 UIKitCore ... 6 libobjc.A.dylib objcrootDealloc 7 QuartzCore // CALayer operations What We Tried (nothing solved cold start crash) Attempt Result Increased stack size to 64MB (-Wl,-stack_size,0x4000000) ❌ No effect Disabled iOS State Restoration ❌ No effect Added isViewLoaded checks in AppDelegate ❌ No effect Added try-catch around GetStorage/SecureStorage init ❌ No effect Added isAppActive flag to track app state ❌ No effect Snapshot overlay in applicationWillResignActive ✅ Fixed background→foreground crash, ❌ but NOT cold start Current AppDelegate.swift import UIKit import Flutter @main @objc class AppDelegate: FlutterAppDelegate { private var snapshotView: UIView? private var isAppActive = false override func application( _ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? ) -> Bool { GeneratedPluginRegistrant.register(with: self) window?.overrideUserInterfaceStyle = .light isAppActive = true return super.application(application, didFinishLaunchingWithOptions: launchOptions) } override func application(_ application: UIApplication, shouldSaveSecureApplicationState coder: NSCoder) -> Bool { return false } override func application(_ application: UIApplication, shouldRestoreSecureApplicationState coder: NSCoder) -> Bool { return false } override func applicationWillResignActive(_ application: UIApplication) { guard isAppActive, let window = self.window, let rootVC = window.rootViewController, rootVC.isViewLoaded, snapshotView == nil else { return } let snapshot = UIView(frame: window.bounds) snapshot.backgroundColor = .white snapshot.tag = 999 window.addSubview(snapshot) snapshotView = snapshot } override func applicationDidBecomeActive(_ application: UIApplication) { guard snapshotView != nil else { isAppActive = true return } snapshotView?.removeFromSuperview() snapshotView = nil } }

Hi. I have an iOS application with multiple input fields. I have to design an experience such that whenever the user presses enter key on a textfield, it should move focus to the next input field. Similarly, consider a stack of 3 textfields, I want to cycle the focus as and when the user presses up/down arrow keys. Other platforms like Android, have this feature out-of-the-box. I wanted to understand if iOS also supports this kind of behavior. I know how to manually code such UX, but just wanted to confirm whether there is some inherent feature like on android which i can leverage? Thanks.

Hi. We discovered this strange behaviour when we're planning to migrate to Xcode 26.2 RC. When our app is running on iOS 26, view controllers thar are pushed from the root of UITabBarController will show with an animation. The views are growing from either the top-left or bottom-right corner. This only happens when the hidesBottomBarWhenPushed variable is set to true. Also it only happens to view controllers that are pushed directly from a UITabBarController; subsequent view controllers that are pushed will not have this weird animation. Since our app design requires hidesBottomBarWhenPushed to be true, we are asking if there is any way to fix this animation. Please refer to the following gif: We have tried methods described in this article but it doesn't work all the time: https://darjeelingsteve.com/articles/Fixing-UINavigationController-Push-Animation-Layout-Issues-on-iOS-26.html. We've tried the following three methods: This does not work at all. First-level view controllers are still showing with animation. override func pushViewController(_ viewController: UIViewController, animated: Bool) { super.pushViewController(viewController, animated: animated) transitionCoordinator?.animate { _ in UIView.performWithoutAnimation { viewController.view.layoutIfNeeded() } } } This does not work as well. override func pushViewController(_ viewController: UIViewController, animated: Bool) { super.pushViewController(viewController, animated: animated) transitionCoordinator?.animate(alongsideTransition: { [weak self] _ in UIView.performWithoutAnimation { self?.navigationBar.layoutIfNeeded() } }, completion: nil) } This works sometimes. However it breaks the push animation for some view controllers. override func pushViewController(_ viewController: UIViewController, animated: Bool) { super.pushViewController(viewController, animated: animated) UIView.performWithoutAnimation { viewController.view.layoutIfNeeded() } } We've created a simple sample project that reproduces this problem. Please run it on a simulator running iOS 26. https://drive.google.com/file/d/1q3pokphh1YDINH69LrHuqJQe8MijHQ2m/view?usp=sharing If anyone has a solution to this please let me know. Thank you for reading.

UIViewController's modalInPopover is deprecated and might disappear in the near future. Is there any replacement? UIViewController's presentViewController:animated:completion is not an equivalent because the modal style cannot be changed while the controller is already presented.

Our app has a UITabBar and the compactInlineLayoutAppearance has a custom font set. This worked fine on iOS 26.0 and 26.1. [self.bottomTabBar.standardAppearance.compactInlineLayoutAppearance.normal setTitleTextAttributes: @{ NSFontAttributeName:[UIFont fontWithName:@"AvenirNext-DemiBold" size:18.0] }]; But on iOS 26.2, the system ignores this custom font. How can I apply a custom font to a UITabBar on iOS 26.2?

Hi, I found an issue related to dynamic app icon changes using UIApplication.shared.setAlternateIconName specifically on iOS 26.1. Test Scenario 1. Change icon using: UIApplication.shared.setAlternateIconName("TestIcon") → Works correctly. 2. Revert to primary icon using: UIApplication.shared.setAlternateIconName(nil) Issue on iOS 26.1 For some users, the device does not revert back to the primary icon when calling setAlternateIconName(nil). To handle this case, we attempted to force the primary icon by explicitly calling: UIApplication.shared.setAlternateIconName("AppIcon") However, on iOS 26.1: • As soon as this call is made, the entire setAlternateIconName API stops working. • Every subsequent call to setAlternateIconName fails. • The API begins returning errors (e.g. NSPOSIXErrorDomain code 35). • The issue persists until the device is rebooted. Expected Behavior We understand that providing "AppIcon" should not change the icon (since primary icon is restored using nil), but on earlier versions of iOS (≤ 26.0): • Calling "AppIcon" simply does nothing (no icon change) • And setAlternateIconName(nil) works as expected to restore the default icon. Problem Summary • On iOS 26.1, calling setAlternateIconName("AppIcon") puts the icon system into a bad state. • After this call: • The API becomes unresponsive • All icon changes fail • Only a reboot restores normal behavior • This regression does not occur on iOS 26.0 or earlier. Request Is this a known issue with the app icon system on iOS 26.1? Should "AppIcon" explicitly be rejected, or is the freeze/error state unintended behavior? Any guidance or confirmation would be greatly appreciated. Thanks!

Hello, While integrating the Liquid Glass UI introduced in iOS 26 into my existing app, I encountered an unexpected issue. My app uses a UITabBarController, where each tab contains a UINavigationController, and the actual content resides in each UIViewController. Typically, I perform navigation using navigationController?.pushViewController(...) and hide the TabBar by setting vc.hidesBottomBarWhenPushed = true when needed. This structure worked perfectly fine prior to iOS 26, and I believe many apps use a similar approach. However, after enabling Liquid Glass UI, a problem occurs. Problem Description From AViewController, I push BViewController with hidesBottomBarWhenPushed = true. BViewController appears, and the TabBar is hidden as expected. When performing a swipe-back gesture, as soon as AViewController becomes visible, the TabBar immediately reappears (likely due to A’s viewWillAppear). The TabBar remains visible for a short moment even if the gesture is canceled — during that time, it is also interactable. Before iOS 26, the TabBar appeared synchronized with AViewController and did not prematurely show during the swipe transition. Tried using the new iOS 18 API: tabBarController?.setTabBarHidden(false, animated: true) It slightly improves the animation behavior, but the issue persists. If hidesBottomBarWhenPushed is now deprecated or discouraged, migrating entirely to setTabBarHidden would require significant refactoring, which is not practical for many existing apps. Is this caused by a misuse of hidesBottomBarWhenPushed, or could this be a regression or design change in iOS 26’s Liquid Glass UI?

I have attached 2 images of our Mac Apps user interface. The app is built for macOS 15.6 or newer. On macOS 15 and earlier everything looks fine. But the same App running on macOS 26 the controls disappear. We were able to temporarily resolve the problem by adding UIDesignRequiresCompatibility to the info.plist. This type of nonsense happens all over the app without the compatibility switch. Shouldn't all these legacy controls be backward compatible on Glass? This part of the app where the controls are disappearing is built in Swift (not swift ui) and uses standard programatic layout and visual constraints. On macOS 26, there are no Xcode warnings or layout errors on the console relative to the layout so we are confused as to how we would resolve this without the use of UIDesignRequiresCompatibility. Is this some kind of bug in NSControl glass compatibility? We are not likely to move the entire app into SwiftUI anytime soon. How would we resolve this?