Hi everyone, I've come across an issue on iOS that seems to affect many apps. Here's what happens: A user logs in with correct credentials and proceeds to the OTP verification screen as part of multi factor authentication. iOS presents the system password save prompt ("Would you like to save this password?"). Without selecting an option on this prompt, the user backgrounds the app (e.g., to check their email for the OTP). Upon returning to the app, the keyboard becomes completely inaccessible on the OTP screen or any other screen. From my testing, this behavior appears to be an OS-level bug, as it occurs consistently across various apps. Has anyone else encountered this? Any known workarounds or updates from Apple on this behavior would be greatly appreciated! Thanks!

Hello. I use NavigationStack for navigating in app. I have 4 screens - A, B, C, D. In some moment I have path [A, B, C] for NavigationStack. After user did action I should show path [A, B, D]. In other hands I should replace screen C with screen D. struct HomeView: View { @ObservedObject var viewModel: HomeViewModel var body: some View { NavigationStack(path: $viewModel.path) { ContentView() .navigationDestination(for: HomeViewModel.Path.self) { destination in // B, C, D views here... } } .navigationViewStyle(StackNavigationViewStyle()) } } Solution looks like same as for UIKit. I replaced last item in stack. It works, but "push" animation broke. var updatedPath = self.path updatedPath.removeLast() updatedPath.append(newPathItem) self.path = updatedPath I found suggest in Internet that you can remove view from stack after some delay. But it has some magic. For example 1 second delay works properly on iOS 18, but cause crash on iOS 16. 1 millisecond delay works on iOS 16, but sometimes didn't. self.path.append(newPathItem) DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(1000)) { UIView.setAnimationsEnabled(false) self.path.remove(at: self.path.count - 2) DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(1)) { UIView.setAnimationsEnabled(true) } } It is easy task to replace current top screen in UINavigationController of UIKit. How I can do it properly in SwiftUI and save animation?

I have a UITextField in my application, and I want to detect all the keys uniquely to perform all relevant task. However, there is some problem in cleanly identifying some of the keys. I m not able to identify the backspace key press in the textField(_:shouldChangeCharactersIn:replacementString:) method. Also I don't know how to detect the Caps Lock key. I am intending to so this because I want to perform some custom handling for some keys. Can someone help me with what is the way of detecting it under the recommendation from apple. Thanks in advance. Note: checking for replacementString parameter in shouldChangeCharactersIn method for empty does not help for backspace detection as it overlaps with other cases.

I set UIToolbar and UIBarButtonItem to UITextField placed on Xib, but when I run it on iOS18 iPad, the following error is output to Xcode Console, and UIPickerView set to UITextField.inputView is not displayed. Error: this application, or a library it uses, has passed an invalid numeric value (NaN, or not-a-number) to CoreGraphics API and this value is being ignored. Please fix this problem. If you want to see the backtrace, please set CG_NUMERICS_SHOW_BACKTRACE environmental variable. Backtrace: <CGPathAddLineToPoint+71> <+[UIBezierPath _continuousRoundedRectBezierPath:withRoundedCorners:cornerRadii:segments:smoothPillShapes:clampCornerRadii:] <+[UIBezierPath _continuousRoundedRectBezierPath:withRoundedCorners:cornerRadius:segments:]+175> <+[UIBezierPath _roundedRectBezierPath:withRoundedCorners:cornerRadius:segments:legacyCorners:]+338> <-[_UITextMagnifiedLoupeView layoutSubviews]+2233> <__56-[_UITextMagnifiedLoupeView _updateCloseLoupeAnimation:]_block_invoke+89> <+[UIView(UIViewAnimationWithBlocksPrivate) _modifyAnimationsWithPreferredFrameRateRange:updateReason:animations:]+166> <block_destroy_helper.269+92> <block_destroy_helper.269+92> <__swift_instantiateConcreteTypeFromMangledName+94289> <block_destroy_helper.269+126> <+[UIView(UIViewAnimationWithBlocks) _setupAnimationWithDuration:delay:view:options:factory:animations:start:anima <block_destroy_helper.269+6763> <block_destroy_helper.269+10907> <-[_UITextMagnifiedLoupeView _updateCloseLoupeAnimation:]+389> <-[_UITextMagnifiedLoupeView setVisible:animated:completion:]+256> <-[UITextLoupeSession _invalidateAnimated:]+329> <-[UITextRefinementTouchBehavior textLoupeInteraction:gestureChangedWithState:location:translation:velocity: <-[UITextRefinementInteraction loupeGestureWithState:location:translation:velocity:modifierFlags:shouldCanc <-[UITextRefinementInteraction loupeGesture:]+701> <-[UIGestureRecognizerTarget _sendActionWithGestureRecognizer:]+71> <_UIGestureRecognizerSendTargetActions+100> <_UIGestureRecognizerSendActions+306> <-[UIGestureRecognizer _updateGestureForActiveEvents]+704> <_UIGestureEnvironmentUpdate+3892> <-[UIGestureEnvironment _updateForEvent:window:]+847> <-[UIWindow sendEvent:]+4937> <-[UIApplication sendEvent:]+525> <__dispatchPreprocessedEventFromEventQueue+1436> <__processEventQueue+8610> <updateCycleEntry+151> <_UIUpdateSequenceRun+55> <schedulerStepScheduledMainSection+165> <runloopSourceCallback+68> <__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__+17> <__CFRunLoopDoSource0+157> <__CFRunLoopDoSources0+293> <__CFRunLoopRun+960> <CFRunLoopRunSpecific+550> <GSEventRunModal+137> <-[UIApplication _run]+875> <UIApplicationMain+123> <__debug_main_executable_dylib_entry_point+63> 10d702478 204e57345 Type: Error | Timestamp: 2025-03-09 00:22:46.121407+09:00 | Process: FurusatoLocalCurrency | Library: CoreGraphics | Subsystem: com.apple.coregraphics | Category: Unknown process name | TID: 0x5c360 Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints) ( "<NSAutoresizingMaskLayoutConstraint:0x600002202a30 h=--& v=--& _UIToolbarContentView:0x7fc2c6a5b8f0.width == 0 (active)>", "<NSLayoutConstraint:0x600002175e00 H:|-(0)-[_UIButtonBarStackView:0x7fc2c6817b10] (active, names: '|':_UIToolbarContentView:0x7fc2c6a5b8f0 )>", "<NSLayoutConstraint:0x600002175e50 H:[_UIButtonBarStackView:0x7fc2c6817b10]-(0)-| (active, names: '|':_UIToolbarContentView:0x7fc2c6a5b8f0 )>", "<NSLayoutConstraint:0x6000022019f0 'TB_Leading_Leading' H:|-(8)-[_UIModernBarButton:0x7fc2a5aa8920] (active, names: '|':_UIButtonBarButton:0x7fc2a5aa84d0 )>", "<NSLayoutConstraint:0x600002201a40 'TB_Trailing_Trailing' H:[_UIModernBarButton:0x7fc2a5aa8920]-(0)-| (active, names: '|':_UIButtonBarButton:0x7fc2a5aa84d0 )>", "<NSLayoutConstraint:0x600002201e50 'UISV-canvas-connection' UILayoutGuide:0x600003b7d420'UIViewLayoutMarginsGuide'.leading == _UIButtonBarButton:0x7fc2f57117f0.leading (active)>", "<NSLayoutConstraint:0x600002201ea0 'UISV-canvas-connection' UILayoutGuide:0x600003b7d420'UIViewLayoutMarginsGuide'.trailing == UIView:0x7fc2a5aac8e0.trailing (active)>", "<NSLayoutConstraint:0x6000022021c0 'UISV-spacing' H:[_UIButtonBarButton:0x7fc2f57117f0]-(0)-[UIView:0x7fc2a5aa8330] (active)>", "<NSLayoutConstraint:0x600002202210 'UISV-spacing' H:[UIView:0x7fc2a5aa8330]-(0)-[_UIButtonBarButton:0x7fc2a5aa84d0] (active)>", "<NSLayoutConstraint:0x600002202260 'UISV-spacing' H:[_UIButtonBarButton:0x7fc2a5aa84d0]-(0)-[UIView:0x7fc2a5aac8e0] (active)>", "<NSLayoutConstraint:0x600002176f30 'UIView-leftMargin-guide-constraint' H:|-(0)-[UILayoutGuide:0x600003b7d420'UIViewLayoutMarginsGuide'](LTR) (active, names: '|':_UIButtonBarStackView:0x7fc2c6817b10 )>", "<NSLayoutConstraint:0x600002176e40 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x600003b7d420'UIViewLayoutMarginsGuide']-(0)-|(LTR) (active, names: '|':_UIButtonBarStackView:0x7fc2c6817b10 )>" ) Will attempt to recover by breaking constraint <NSLayoutConstraint:0x600002201a40 'TB_Trailing_Trailing' H:[_UIModernBarButton:0x7fc2a5aa8920]-(0)-| (active, names: '|':_UIButtonBarButton:0x7fc2a5aa84d0 )> Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.

I want to truncate text from head with max 2 lines. I try the following code import SwiftUI struct ContentView: View { @State var content: String = "Hello world! wef wefwwfe wfewe weweffwefwwfwe wfwe" var body: some View { VStack { Text(content) .lineLimit(nil) .truncationMode(.head) .frame(height: 50) Button { content += content } label: { Text("Double") } .buttonStyle(.borderedProminent) } .frame(width: 200, height: 1000) .padding() } } #Preview { ContentView() } It show result like this, this is not what I want.

Hey, Anyone knows of a possible way to present a PasteButton in a .confirmationDialog on iOS? when I try adding it, it's ignored and not displayed with the rest of the buttons struct MyView: View { @State var flag: Bool = false var body: some View { Text("Some Text") .confirmationDialog("Dialog", isPresented: $flag) { Group { Button("A") {} Button("B") {} PasteButton(payloadType: Data.self) { data in } } } } }

I have an app which uses Scene var body: some Scene { WindowGroup { RootView(root: appDelegate.root) .edgesIgnoringSafeArea(.all) .onOpenURL { url in let stringUrl = url.absoluteString if (stringUrl.starts(with: "http")) { handleUniversalLink(url: stringUrl) } else if (stringUrl.starts(with: "fb")) { let _ = ApplicationDelegate.shared.application( UIApplication.shared, open: url, sourceApplication: nil, annotation: [UIApplication.OpenURLOptionsKey.annotation]) } } } } I need to detect when a user taps on status bar. And call some functions when he does it. Is it possible in Swift?

Hello everyone, The setup: I have an iPadOS app. The app does not require full screen (Requires full screen option is disabled). The problem: The app starts looking unpolished when the canvas becomes too small. What I tried: I am trying to limit the canvas size for our app when run in Stage Manager. How: I saw that UIWindowScene has sizeRestrictions. This property is not always set as per documentation: https://developer.apple.com/documentation/uikit/uiwindowscene/sizerestrictions From my experiments, it only works when it's run on MacOS (in compatibility mode in our case). Console logs: Stage Manager - Requires full screen - OFF willConnectToSession - sizeRestrictions: nil sceneDidBecomeActive - sizeRestrictions: nil Stage Manager - Requires full screen - ON willConnectToSession - sizeRestrictions: nil sceneDidBecomeActive - sizeRestrictions: nil Stage Manager - Requires full screen - OFF - RUN on MacOS willConnectToSession - sizeRestrictions: Available sceneDidBecomeActive - sizeRestrictions: Available Question: Is there a way to enforce this minimum canvas size?

Hello, I am currently encountering an issue where SwiftUI View Previews cannot be displayed when the View is defined in a Static Framework target. This issue only occurs under specific conditions. Environment Xcode: 16.2 Scheme Structure: MainApp Test Target: TestHogeFeature Test Setting: Gather coverage (Code coverage collection) enabled(all) Target Structure: MainApp (Application target) Dependencies: [HogeFeature, Core] HogeFeature (Static Framework target) Dependencies: [Core] Core (Framework target) Dependencies: None TestHogeFeature (Unit test target) Dependencies: [HogeFeature] Summary I am currently working on a SwiftUI-based project and have encountered an issue where Previews fail to display under specific conditions. Below are the details: Issue In the MainApp scheme, when the code coverage collection setting (Gather coverage for) is enabled, Previews for SwiftUI Views within the HogeFeature (Static Framework) target fail to display correctly. However, the issue is resolved by taking one of the following actions: Change HogeFeature from a Static Framework to a Dynamic Framework. Remove the build setting MACH_O_TYPE: staticlib Disable the Gather coverage setting in the MainApp scheme. I have attached the actual error log from the failed Preview. preview error log Questions Why does this issue occur only when using a Static Framework with code coverage enabled? Is there any way to resolve this issue while maintaining the current configuration (Static Framework with code coverage enabled)? I would appreciate any advice or insights regarding the cause and potential solutions.

Hi, Is there any way of changing the contentInset (UIKit variant) of a List in SwiftUI? I do not see any APIs for doing so, the closest I gotten is to use safeAreaInset . While visually that works the UX is broken as you can no longer "scroll" from the gap made by the .safeAreaInset(edge:alignment:spacing:content:) I have subbmited a feedback suggestion: FB16866956

In our application we have two usecases for a Hotkey/Shortcut identification API/method. We have some predefined shortcuts that will ship with our MacOS application. They may or may not change dynamically, based on what the user has already set as shortcuts/hotkeys, and also to avoid any important system wide shortcuts that the user may or may not have changed. We allow the user to customize the shortcuts/hotkeys in our application, so we want to show what shortcuts the user already has in use system-wide and across their OS experience. This gives rise to the need for an API that lets us know which shortcut/hotkeys are currently being used by the user and also the current system wide OS shortcuts in use. Please let me know if there are any APIs in AppKit or SwiftUI we can use for the above

A NavigationStack with a singular enum for .navigationDestination() works fine. Both NavigationLinks(value:) and directly manipulating the NavigationPath work fine for moving around views. Zero problems. The issue is when we instead use a NavigationSplitView, I've only dabbled with two-column splits (sidebar and detail) so far. Now, if the sidebar has its own NavigationStack, everything works nicely on an iPhone, but on an iPad, you can't push views onto the detail from the sidebar. (They're pushed on the sidebar) You can solve this by keeping a NavigationStack ONLY on the detail. Sidebar links now properly push onto the detail, and the detail can move around views by itself. However, if you mix NavigationLink(value:) with manually changing NavigationPath, it stops working with no error. If you only use links, you're good, if you only change the NavigationPath you're good. Mixing doesn't work. No error in the console either, the breakpoints hit .navigationDestination and the view is returned, but never piled up. (Further attempts do show the NavigationPath is being changed properly, but views aren't changing) This problem didn't happen when just staying on NavigationStack without a NavigationSplitView. Why mix? There's a few reasons to do so. NavigationLinks put the appropriate disclosure indicator (can't replicate its look 100% without it), while NavigationPaths let you trigger navigation without user input (.onChange, etc) Any insights here? I'd put some code samples but there's a metric ton of options I've tested here.

Could an Apple employee that works on SwiftUI please explain the update() func in the DynamicProperty protocol? The docs have ambiguous information, e.g. "Updates the underlying value of the stored value." and "SwiftUI calls this function before rendering a view’s body to ensure the view has the most recent value." From: https://developer.apple.com/documentation/swiftui/dynamicproperty/update() How can it both set the underlying value and get the most recent value? What does underlying value mean? What does stored value mean? E.g. Is the code below correct? struct MyProperty: DynamicProperty { var x = 0 mutating func update() { // get x from external storage x = storage.loadX() } } Or should it be: struct MyProperty: DynamicProperty { let x: Int init(x: Int) { self.x = x } func update() { // set x on external storage storage.save(x: x) } } This has always been a mystery to me because of the ambigious docs so thought it was time to post a question.

When I present a view controller, whose view is a SwiftUI View, via presentAsModalWindow(_:) the presented window is no longer centered horizontally to the screen, but rather its origin is there. I know this issue occurs for macOS 15.2+, but can't tell if it is from 15.0+. I couldn't find any documentation on why was this changed. Here's an example code that represents my architecture: class RootViewController: NSViewController { private lazy var button: NSButton = NSButton( title: "Present", target: self, action: #selector(presentView)) override func viewDidLoad() { super.viewDidLoad() // Add button to tree } @objc func presentView() { presentAsModalWindow(PresentedViewController()) } } class PresentedViewController: NSViewController { override loadView() { view = NSHostingView(rootView: MyView()) } } struct MyView: View { /* impl */ }

We were using below delegate methods from QuickLook to get modified PDF file URL after the sketching But we are not able see the multi line text properly laid out on PDF and part of text missing. Same time Other pencil kit tools are working as expected. `func previewController(_ controller: QLPreviewController, didSaveEditedCopyOf previewItem: QLPreviewItem, at modifiedContentsURL: URL) func previewController(_ controller: QLPreviewController, didUpdateContentsOf previewItem: any QLPreviewItem)` We tested all code in iOS 18.2. Please let us know if the text edited URL on PDF can be retrieved in any possible way without tampering text

Hello, I’m developing an app where I display a SwiftUI view inside a UIHostingController embedded within a UIKit ViewController. I’m trying to animate the height of the UIHostingController’s view based on a switch’s value, but the SwiftUI view doesn’t animate at all. Below is a simplified version of my code: class ViewController: UIViewController { private lazy var parentView: UIView = { let view = UIView() view.backgroundColor = .red view.translatesAutoresizingMaskIntoConstraints = false return view }() private lazy var hostingView: UIView = { let testView = TestView() let hostingController = UIHostingController(rootView: testView) let view = hostingController.view! view.translatesAutoresizingMaskIntoConstraints = false return view }() private lazy var button: UISwitch = { let button = UISwitch() button.addTarget(self, action: #selector(onClickSwitch(sender:)), for: .valueChanged) button.translatesAutoresizingMaskIntoConstraints = false return button }() private var hostingViewHeightConstraint: NSLayoutConstraint? override func viewDidLoad() { super.viewDidLoad() view.addSubview(parentView) parentView.addSubview(hostingView) parentView.addSubview(button) NSLayoutConstraint.activate([ parentView.topAnchor.constraint(equalTo: view.topAnchor), parentView.bottomAnchor.constraint(equalTo: view.bottomAnchor), parentView.leadingAnchor.constraint(equalTo: view.leadingAnchor), parentView.trailingAnchor.constraint(equalTo: view.trailingAnchor) ]) NSLayoutConstraint.activate([ hostingView.bottomAnchor.constraint(equalTo: parentView.bottomAnchor), hostingView.leadingAnchor.constraint(equalTo: parentView.leadingAnchor), hostingView.trailingAnchor.constraint(equalTo: parentView.trailingAnchor) ]) hostingViewHeightConstraint = hostingView.heightAnchor.constraint(equalTo: parentView.heightAnchor, multiplier: 0.5) hostingViewHeightConstraint?.isActive = true NSLayoutConstraint.activate([ button.centerXAnchor.constraint(equalTo: parentView.centerXAnchor), NSLayoutConstraint(item: button, attribute: .centerY, relatedBy: .equal, toItem: parentView, attribute: .centerY, multiplier: 0.25, constant: 0) ]) } @objc func onClickSwitch(sender: UISwitch) { hostingViewHeightConstraint?.isActive = false let multiplier: CGFloat = sender.isOn ? 0.25 : 0.5 hostingViewHeightConstraint = hostingView.heightAnchor.constraint(equalTo: parentView.heightAnchor, multiplier: multiplier) hostingViewHeightConstraint?.isActive = true UIView.animate(withDuration: 0.3) { self.view.layoutIfNeeded() } } } I’m looking for the behavior demonstrated in the video below: Does anyone have suggestions on how to achieve this?

As can be seen in the screenshot attached, I can not see the options in this window. A prompt window before this also did not show any buttons in the visible space. However, I made a guess and could get to this window by clicking on what I think was "Ok" or something similar. But on this I could not do any action and had to force quit the app.

One of my clients is interested in developing a system similar to BrowserStack for internal team usage. Could you please guide me on how to approach the development of this system? Specifically, the project requires: Full iPhone screen recording. Capturing and executing click events on the iPhone. Do I need to obtain permission from Apple for these functionalities?

My App always encounter with CoreAutoLayout invade My SnapKit layout constraint as follow: popBgView.snp.makeConstraints { make in make.centerY.equalToSuperview() make.leading.equalTo(assistantTeacherView.snp.trailing).offset(.isiPad ? -50 : -40) if TTLGlobalConstants.isCompactScreen320 { make.width.lessThanOrEqualTo(300) } else { let widthRatio = .isiPad ? 494.0 / 1024.0 : 434.0 / 812.0 make.width.lessThanOrEqualTo(TTLGlobalConstants.screenWidth * widthRatio) } bubbleViewRightConstraint = make.trailing.equalToSuperview().constraint } ..... popBgView.addSubview(functionView) msgLabel.snp.remakeConstraints { make in make.leading.equalToSuperview().inset(Metric.msgLabelHorizantalInset) make.centerY.equalToSuperview() make.trailing.lessThanOrEqualToSuperview().inset(Metric.msgLabelHorizantalInset) make.top.equalTo(Metric.msgLabelVerticalInset) } functionView.snp.makeConstraints { make in make.leading.equalTo(msgLabel.snp.trailing).offset(Metric.msgLabelFunctionSpacing) make.centerY.equalToSuperview() make.trailing.equalToSuperview().offset(-Metric.msgLabelHorizantalInset) } msgLabel and functionView superview is popBgView However, when I try remove from superview for functionView, There is low probability crash: OS Version: iOS 16.1.1 (20B101) Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: SEGV_NOOP Crashed Thread: 0 Application Specific Information: Exception 1, Code 1, Subcode 14967683541490370463 > KERN_INVALID_ADDRESS at 0xcfb7e4e0f8fe879f. Thread 0 Crashed: 0 CoreAutoLayout 0x382555f44 -[NSISEngine positiveErrorVarForBrokenConstraintWithMarker:errorVar:] 1 CoreAutoLayout 0x382555e9c -[NSISEngine positiveErrorVarForBrokenConstraintWithMarker:errorVar:] 2 CoreAutoLayout 0x3825557e4 -[NSISEngine removeConstraintWithMarker:] 3 CoreAutoLayout 0x382555198 -[NSLayoutConstraint _removeFromEngine:] 4 UIKitCore 0x34d87961c __57-[UIView _switchToLayoutEngine:]_block_invoke 5 CoreAutoLayout 0x382556e8c -[NSISEngine withBehaviors:performModifications:] 6 UIKitCore 0x34d8a1c38 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] 7 UIKitCore 0x34d7f01b0 __57-[UIView _switchToLayoutEngine:]_block_invoke_2 8 UIKitCore 0x34d879770 __57-[UIView _switchToLayoutEngine:]_block_invoke 9 CoreAutoLayout 0x382556e8c -[NSISEngine withBehaviors:performModifications:] 10 UIKitCore 0x34d8a1c38 -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] 11 UIKitCore 0x34d8a1848 __45-[UIView _postMovedFromSuperview:]_block_invoke 12 UIKitCore 0x34e7ff8d0 -[UIView _postMovedFromSuperview:] 13 UIKitCore 0x34d85e3c8 __UIViewWasRemovedFromSuperview 14 UIKitCore 0x34d85b1a4 -[UIView(Hierarchy) removeFromSuperview] 15 Collie-iPad 0x203001550 [inlined] InClassAssistantView.functionView.didset (InClassAssistantView.swift:105)

Hello, the LocalizedStringKey does not work in the live activity. What do you suggest me to use in order to get localization in the live activity?