Hi, I'm trying to create a custom TextField component where we can have our own custom FormatStyle as a param and then it will change the value binding according to the FormatStyle. It worked with State<Any?> like for example $textValue. But when I use .constant(2000) for instance, the Formatting doesn't work. So is there any way to detect whether the value param is constant or not? Thank you.

FB: FB22577211 The following trivial SwiftUI Text rendering causes wrong text layout and truncated text. The text should take the required height to render the text without truncation. Adding fixedSize does also not solve this. This bug only happens on devices and not on the simulator. Confirmed with iPhone 15 and iOS 26.4.1 but my colleague used another iPhone so it’s multiple iPhone devices. import SwiftUI let txt = """ Es sollte die erste Japan-Tournee von vielen werden, kein anderes Land – abgesehen von Österreich und der Schweiz – bereisten die Berliner Philharmoniker häufiger. Wie kam es zu dem überschäumend herzlichen Empfang, der dem Orchester bei seinem ersten Gastspiel in Tokio bereitet wurde und wie wurde das Land zu einer »zweiten Heimat« für die Berliner? Ein konkreter historischer Grundstein für das hohe Ansehen klassischer Musik »made in Germany« in Japan wurde bereits im 19. Jahrhunderts gelegt: Als Teil von umfassenden gesellschaftlichen Modernisierungsmaßnahmen vergab die Regierung ab 1868 Stipendien an junge japanische Intellektuelle, damit diese an den besten internationalen Instituten studieren konnten. Berlin wurde – neben Wien – als globales Zentrum der Musik betrachtet, und so erhielten viele japanische Studierende um die Jahrhundertwende die Gelegenheit, von Komponisten wie etwa Max Bruch zu lernen. Zurück in der Heimat, teilten sie ihre Begeisterung für die europäische Kunstmusik sowie das Wissen um die instrumentale und kompositorische Praxis der klassisch-romantischen Tradition. """ struct ContentView: View { var body: some View { VStack { Text(txt) } .padding(.leading, 20) .padding(.trailing, 20) .frame(maxWidth: .infinity) } } This is also enough: Text(txt) .padding(.horizontal, 20) .fixedSize(horizontal: false, vertical: true) Expected: Text is rendered without truncation / ellipsis. Actual: Text is rendered with too small height / missing one line so it’s truncated / with ellipsis.

[Also submitted as FB20756013] A popoverTip does not display for toolbar menu buttons in iOS 26.1 (23B5073a). The same code displays tips correctly in iOS 18.6. The issue occurs both in the simulator and on a physical device. Repro Steps Build and run the Sample Code below on iOS 26.1. Observe that the popoverTip does not display. Repeat on iOS 18.6 to confirm expected behavior. Expected popoverTips should appear when attached to a toolbar menu button, as they do in iOS 18.6. Actual No tip is displayed on iOS 26.1. System Info macOS 15.7.1 (24G231) Xcode 26.1 beta 3 (17B5045g) iOS 26.1 (23B5073a) Screenshot Screenshot showing two simulators side by side—iOS 18.6 on the left (tip displayed) and iOS 26.1 on the right (no tip displayed). Sample code import SwiftUI import TipKit struct PopoverTip: Tip { var title: Text { Text("Menu Tip") } var message: Text? { Text("This tip displays on iOS 18.6, but NOT on iOS 26.1.") } } struct ContentView: View { var tip = PopoverTip() var body: some View { NavigationStack { Text("`popoverTip` doesn't display on iOS 26.1 but does in iOS 18.6") .padding() .toolbar { ToolbarItem(placement: .topBarTrailing) { Menu { Button("Dismiss", role: .cancel) { } Button("Do Nothing") { } } label: { Label("More", systemImage: "ellipsis") } .popoverTip(tip) } } .navigationTitle("Popover Tip Issue") .navigationBarTitleDisplayMode(.inline) } } }

.navigationTitle disappears when using .toolbar and List inside NavigationStack (iOS 26 beta) Summary In iOS 26 beta, using .navigationTitle() inside a NavigationStack fails to render the title when combined with a .toolbar and a List. The title initially appears as expected after launch, but disappears after a second state transition triggered by a button press. This regression does not occur in iOS 18. Steps to Reproduce Use the SwiftUI code sample below (see viewmodel and Reload button for state transitions). Run the app on an iOS 26 simulator (e.g., iPhone 16). On launch, the view starts in .loading state (shows a ProgressView). After 1 second, it transitions to .loaded and displays the title correctly. Tap the Reload button — this sets the state back to .loading, then switches it to .loaded again after 1 second. ❌ After this second transition to .loaded, the navigation title disappears and does not return. Actual Behavior The navigation title displays correctly after the initial launch transition from .loading → .loaded. However, after tapping the “Reload” button and transitioning .loading → .loaded a second time, the title no longer appears. This suggests a SwiftUI rendering/layout invalidation issue during state-driven view diffing involving .toolbar and List. Expected Behavior The navigation title “Loaded Data” should appear and remain visible every time the view is in .loaded state. ✅ GitHub Gist including Screen Recording 👉 View Gist with full details Sample Code import SwiftUI struct ContentView: View { private let vm = viewmodel() var body: some View { NavigationStack { VStack { switch vm.state { case .loading: ProgressView("Loading...") case .loaded: List { ItemList() } Button("Reload") { vm.state = .loading DispatchQueue.main.asyncAfter(deadline: .now() + 1) { vm.state = .loaded } } .navigationTitle("Loaded Data") } } .toolbar { ToolbarItem(placement: .navigationBarTrailing) { Menu { Text("hello") } label: { Image(systemName: "gearshape.fill") } } } } } } struct ItemList: View { var body: some View { Text("Item 1") Text("Item 2") Text("Item 3") } } @MainActor @Observable class viewmodel { enum State { case loading case loaded } var state: State = .loading init() { DispatchQueue.main.asyncAfter(deadline: .now() + 1) { self.state = .loaded } } }

I want to clear certain state when closing a template when the user clicks the backbutton

[Submitted as FB21958289] A minimal SwiftUI app logs framework warnings when a bottom bar Menu is used with the system search toolbar item. The most severe issue is logged as a console Fault (full logs below): Adding 'UIKitToolbar' as a subview of UIHostingController.view is not supported and may result in a broken view hierarchy. Add your view above UIHostingController.view in a common superview or insert it into your SwiftUI content in a UIViewRepresentable instead. This appears to be a framework-level SwiftUI/UIKit integration issue, not custom UIKit embedding in app code. The UI may still render, but the warnings indicate an internal hierarchy/layout conflict. This occurs in simulator and physical device. REPRO STEPS Create a new project then replace ContentView with the code below. Run the app. The view uses NavigationStack + .searchable + .toolbar with: ToolbarItem(placement: .bottomBar) containing a Menu DefaultToolbarItem(kind: .search, placement: .bottomBar) EXPECTED RESULT No view hierarchy or Auto Layout warnings in the console. ACTUAL RESULT Console logs warnings such as: "Adding 'UIKitToolbar' as a subview of UIHostingController.view is not supported..." "Ignoring searchBarPlacementBarButtonItem because its vending navigation item does not match the view controller's..." "Unable to simultaneously satisfy constraints..." (ButtonWrapper/UIButtonBarButton width and trailing constraints) MINIMAL REPRO CODE import SwiftUI struct ContentView: View { @State private var searchText = "" @State private var isSearchPresented = false var body: some View { NavigationStack { List(0..<30, id: \.self) { index in Text("Row \(index)") } .navigationTitle("Toolbar Repro") .searchable(text: $searchText, isPresented: $isSearchPresented) .toolbar { ToolbarItem(placement: .bottomBar) { Menu { Button("Action 1") { } Button("Action 2") { } } label: { Label("Actions", systemImage: "ellipsis.circle") } } DefaultToolbarItem(kind: .search, placement: .bottomBar) } } } } CONSOLE LOG Adding 'UIKitToolbar' as a subview of UIHostingController.view is not supported and may result in a broken view hierarchy. Add your view above UIHostingController.view in a common superview or insert it into your SwiftUI content in a UIViewRepresentable instead. Ignoring searchBarPlacementBarButtonItem because its vending navigation item does not match the view controller's. view controller: <_TtGC7SwiftUI32NavigationStackHostingControllerVS_7AnyView_: 0x106014c00>; vc's navigationItem = <UINavigationItem: 0x105530320> title='Toolbar Repro' style=navigator searchController=0x106131200 SearchBarHidesWhenScrolling-default; vending navigation item <UINavigationItem: 0x106db4270> style=navigator searchController=0x106131200 SearchBarHidesWhenScrolling-explicit 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. ( "<NSLayoutConstraint:0x600002171450 _TtC5UIKitP33_DDE14AA6B49FCAFC5A54255A118E1D8713ButtonWrapper:0x106a31fe0.width == _UIButtonBarButton:0x106dc4010.width (active)>", "<NSLayoutConstraint:0x6000021558b0 'IB_Leading_Leading' H:|-(8)-[_UIModernBarButton:0x106a38010] (active, names: '|':_UIButtonBarButton:0x106dc4010 )>", "<NSLayoutConstraint:0x600002170eb0 'IB_Trailing_Trailing' H:[_UIModernBarButton:0x106a38010]-(8)-| (active, names: '|':_UIButtonBarButton:0x106dc4010 )>", "<NSLayoutConstraint:0x60000210aa80 'UIView-Encapsulated-Layout-Width' _TtC5UIKitP33_DDE14AA6B49FCAFC5A54255A118E1D8713ButtonWrapper:0x106a31fe0.width == 0 (active)>" ) Will attempt to recover by breaking constraint <NSLayoutConstraint:0x600002170eb0 'IB_Trailing_Trailing' H:[_UIModernBarButton:0x106a38010]-(8)-| (active, names: '|':_UIButtonBarButton:0x106dc4010 )> 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. Failed to send CA Event for app launch measurements for ca_event_type: 0 event_name: com.apple.app_launch_measurement.FirstFramePresentationMetric Failed to send CA Event for app launch measurements for ca_event_type: 1 event_name: com.apple.app_launch_measurement.ExtendedLaunchMetrics

Hi, I'm using one ttf font that simulate a bitmap look in my app. However, macOS renders all font with anti-aliasing. On those kind of font, that introduce some artefacts. Is there a way to disable anti-aliasing or some tricks that would make like there were no anti-aliasing? Thanks.

Navigation title scroll along with the content in iOS 26. working fine in iOS 18 and below. One of my UI component is outside the scrollview which is causing the issue. var body: some View { VStack { Rectangle() .frame(maxWidth: .infinity) .frame(height: 60) .padding(.horizontal) .padding(.top) ScrollView { ForEach(0...5, id: \.self) { _ in RoundedRectangle(cornerRadius: 10) .fill(.green) .frame(maxWidth: .infinity) .frame(height: 100) .padding(.horizontal) } } } .navigationTitle("Hello World") } }

I have some simple circular complications, that use a ZStack with SFSymbols. On high contrast Watch Faces, I noted that the circle is slightly off to the top leading side. I tried to set the ZStack alignment to center, fiddled around with Spacers, but I could not get it centered. Is that a bug or am I missing something? struct CircularWidgetDashed: View { var entry: Provider.Entry var body: some View { ZStack { Image(systemName: "circle.dashed") .resizable() .scaledToFit() .foregroundColor(.green) Text("\(entry.online)/\(entry.total)") .foregroundStyle(.primary) .font(.caption) .fontWeight(.semibold) } .widgetAccentable() } }

On OSX, using a segmented picker style causes the following warning to be emitted (when a different selection is made) : "Publishing changes from within view updates is not allowed, this will cause undefined behavior." The warning is not emitted using the 'Preview Canvas' only when running the app. Changing the picker style to automatic also fixes it, but the segmented style is used extensively. Tested using XCode 26.4.1 on MacOS 26.3.1 --- view --- import SwiftUI internal import Combine enum Mode : String { case one, two, three } class MyObject : ObservableObject { @Published var mode : Mode = .one } struct ContentView: View { @StateObject var obj = MyObject() var body: some View { VStack { Picker("Mode",selection: $obj.mode) { Text("One").tag(Mode.one) Text("Two").tag(Mode.two) Text("Three").tag(Mode.three) } .pickerStyle(.segmented) } .padding() } } #Preview { ContentView() } --- app --- import SwiftUI @main struct SwiftUIBugApp: App { var body: some Scene { WindowGroup { ContentView() } } }

On iPad OS 26, the custom keyboard works correctly with a full keyboard, but with a floating keyboard, there is only one line and the console displays a constraint error. 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. ( "<NSLayoutConstraint:0x600002172c10 V:|-(10)-[TUIKeyboardContentView:0x1039c5410] (active, names: '|':TUIKeyplaneView:0x1039c3e20 )>", "<NSLayoutConstraint:0x600002172c60 V:[TUIKeyboardContentView:0x1039c5410]-(-11)-| (active, names: '|':TUIKeyplaneView:0x1039c3e20 )>", "<NSLayoutConstraint:0x6000021721c0 V:|-(0)-[TUIKeyplaneView:0x1039c3e20] (active, names: UIKeyboardLayoutStar Prev...:0x105160e00, '|':UIKeyboardLayoutStar Prev...:0x105160e00 )>", "<NSLayoutConstraint:0x600002172210 V:[TUIKeyplaneView:0x1039c3e20]-(0)-| (active, names: UIKeyboardLayoutStar Prev...:0x105160e00, '|':UIKeyboardLayoutStar Prev...:0x105160e00 )>", "<NSLayoutConstraint:0x6000021728a0 V:|-(0)-[UIKeyboardLayoutStar Prev...] (active, names: UIKeyboardLayoutStar Prev...:0x105160e00, '|':UIKeyboardImpl:0x109905fa0 )>", "<NSLayoutConstraint:0x6000021728f0 V:[UIKeyboardLayoutStar Prev...]-(0)-| (active, names: UIKeyboardLayoutStar Prev...:0x105160e00, '|':UIKeyboardImpl:0x109905fa0 )>", "<NSLayoutConstraint:0x600002177980 '_UITemporaryLayoutHeight' UIKeyboardImpl:0x109905fa0.height == 0 (active)>", "<NSLayoutConstraint:0x600002172df0 'TUIKeyplane.height' TUIKeyboardContentView:0x1039c5410.height == 217 (active)>" ) Will attempt to recover by breaking constraint <NSLayoutConstraint:0x600002172df0 'TUIKeyplane.height' TUIKeyboardContentView:0x1039c5410.height == 217 (active)> 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. iPad OS 26 custom keyboard, full keyboard mode is working normally.

My iPadOS app can open .xml files. In my XMLApp.swift, I hooked up a: var body: some Scene { WindowGroup(id: "main") { .commands CommandGroup(replacing: .newItem) { ... Button(.openDot) { openXMLFile() } ... Next, I entered a new UTImportedTypeDeclarations / UTExportedTypeDeclarations in Project Settings -> Target -> Info -> Document Types, Exported Type Identifiers, Imported Type Identifiers, for the XML file-type: ... <key>UTImportedTypeDeclarations</key> <array> <dict> <key>UTTypeConformsTo</key> <array> <string>public.data</string> <string>public.xml</string> <string>public.content</string> </array> ... As soon as I do that, Xcode creates an additional Open... menu entry all the way at the bottom of the File menu. I cannot get rid of this additional menu entry. Its state is disabled (grayed out). I have my own Open (per the code above), which also responds to ⌘ - O. My menu entry works fine, as long as I disable the same keyboard shortcut so they don't collide. The extra Open entry is also displayed on the matching iPadOS simulator. From the same codebase, the Open is not displayed on the Mac (targeting macOS, not Catalyst). On macOS, only my Open is in the File menu, as expected. Why is there a duplicate Open menu entry and how do I get rid of it?

Could anyone help confirm if this is a bug and suggest possible solutions? Thanksssss In iOS 18, when using Zoom NavigationTransition, the toolbar from the destination view may randomly appear on the source view after navigating back with the swipe-back gesture. Re-entering the destination view and navigating back again can temporarily resolve the issue, but it may still occur intermittently. This bug only happens with Zoom NavigationTransition and does not occur when using a button tap to navigate back. import SwiftUI struct test: View { @Namespace private var namespace var body: some View { NavigationStack { NavigationLink { Image("img1") .resizable() .navigationTransition(.zoom(sourceID: 1, in: namespace)) .toolbar { ToolbarItem(placement: .bottomBar) { Text("destination noDisappear") } } } label: { Image("img1") .resizable() .frame(width: 100, height: 100) .matchedTransitionSource(id: 1, in: namespace) .toolbar { ToolbarItem(placement: .bottomBar) { Text("source toolbar") } } } } } }

When a NavigationSplitView detail column shows a View that uses .searchable(text: $searchText, placement: .navigationBarDrawer), the search bar extends under the sidebar region, on the first View render only. After any event that triggers a View refresh (such as switching away and back to the View, editing the search text, or resizing the window) the search field is positioned correctly in the detail column’s navigation area. var body: some View { NavigationSplitView { List { Text("Sidebar") } .navigationTitle("Sidebar") } detail: { Text("Detail") .navigationTitle("List") .searchable( text: $searchText, placement: .navigationBarDrawer ) } } FB22559713 has been opened.

When I add a simple menu to the dock via the NSApplicationDelegate method -applicationDockMenu: and run the app from Xcode it doesn't work. -(NSMenu*)applicationDockMenu:(NSApplication*)sender { NSMenu *dockMenu = [self buildDockMenu]; if (dockMenu != nil) { NSLog(@"Returning dock menu."); return dockMenu; } else { NSLog(@"Not ready to build dock menu"); return nil; } } When I run the app, my main app window shows up but nothing logs out in -applicationDockMenu: until I click outside my app's window (so if I click the desktop background, or a Finder window, or whatever). Then after I click outside my app's main window this logs out: Returning dock menu. The "Not ready to build dock menu" message does not log out. But...when I right click on the dock icon, the menu doesn't show up. But if I stop the app from Xcode and just run it not attached to the debugger, the dock menu does show up. But this makes the debugging/testing situation not ideal.

[Submitted as FB22200608] With Increase Contrast turned on, the selected row highlight in a List behaves inconsistently between light and dark appearance on iPad. In light appearance the blue selection highlight correctly becomes darker, but in dark appearance it becomes lighter instead. The text contrast ratio drops from about 3:1 to about 1.5:1, well below accessibility guidelines. This reproduces both in the simulator and on a physical device. The sample uses a standard SwiftUI List inside NavigationSplitView with built-in selection styling. No custom colors or styling are applied. REPRO STEPS Create a new Multiplatform project. Replace ContentView with code below. Build and run on iPad. Select an item in the list. Turn on Dark appearance (Cmd-Shift-A in Simulator). Turn on Increase Contrast (Cmd-Control-Shift-A in Simulator). Observe the selected row highlight. ACTUAL In light appearance, the blue selection highlight becomes darker when Increase Contrast is on, improving contrast as expected. In dark appearance, the blue selection highlight becomes lighter when Increase Contrast is on, reducing contrast between the selection background and the white text. EXPECTED Increase Contrast should consistently increase contrast. In dark appearance, the selection highlight should become darker—or otherwise increase contrast with the foreground text—not lighter. SAMPLE CODE struct ContentView: View { @State private var selection: String? var body: some View { NavigationSplitView { Text("Sidebar") } content: { List(selection: $selection) { Text("Item One") .tag("One") Text("Item Two") .tag("Two") } } detail: { if let selection { Text(selection) } else { Text("Select an item") } } } } SCREEN RECORDING CONTACTS The Contacts app behaves correctly. When Increase Contrast is turned on, the selection blue becomes darker, improving contrast. PASSWORDS The Passwords app, however, exhibits the issue. With Increase Contrast turned on, the selection blue becomes lighter instead of darker, reducing contrast.

I have a question regarding cold start and pre-warming behavior on iOS. I’m developing a SwiftUI app that continuously receives data from a BLE device in the background. We’ve observed that after the BLE stream stops, the OS often terminates our app. Later, when the sensor comes back into range, iOS appears to relaunch (or reinitialize) the app. In our app, we use a WindowGroup like this: WindowGroup { AppView(store: store) } We’ve placed our BLE reconnection logic inside a .task modifier in AppView. What’s confusing is this: Most of the time, when the app is relaunched, AppView is created and the .task runs as expected. However, in about 1 out of 10 cases, AppView is not created at all, so the .task does not execute. I’m trying to understand: Under what conditions does iOS relaunch an app without fully initializing the SwiftUI view hierarchy? Is this related to pre-warming or background relaunch mechanisms (e.g., CoreBluetooth state restoration)? What determines whether the WindowGroup and root view are actually instantiated? Any insight into the system’s relaunch behavior or lifecycle in this scenario would be greatly appreciated.

Because of this, in Swift 6 mode, Xcode complains about the access, and ask me to use unsafe keyword. To fix it, I need to do this: Anyone can explain this abrupt nonisolated(unsafe) change?

Apps that try to access the contents of the pasteboard cause a system prompt to appear asking the user "AppName" would like to paste from "OtherAppName" Do you want to allow this? Don't Allow Paste Allow Paste This prompt does not appear if you implement a UIPasteControl and the user taps it to signal intent to paste, but this control cannot be placed into a UIMenu. I read this could be achieved with UIAction.Identifiers like .paste or .newFromPasteboard but the prompt still appears with the following code. What's the trick? override func viewDidLoad() { super.viewDidLoad() title = "TestPaste" view.backgroundColor = .systemBackground let imageView = UIImageView() imageView.translatesAutoresizingMaskIntoConstraints = false imageView.contentMode = .scaleAspectFit imageView.clipsToBounds = true view.addSubview(imageView) NSLayoutConstraint.activate([ imageView.topAnchor.constraint(equalTo: view.topAnchor), imageView.leadingAnchor.constraint(equalTo: view.leadingAnchor), imageView.trailingAnchor.constraint(equalTo: view.trailingAnchor), imageView.bottomAnchor.constraint(equalTo: view.bottomAnchor) ]) navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Add", image: UIImage(systemName: "plus"), menu: UIMenu(children: [ UIAction(identifier: .paste) { _ in imageView.image = UIPasteboard.general.image } ])) }

Hi folks, there's currently a known issue in TipKit due to which it won't show popover tips on buttons that are inside a SwiftUI ToolbarItem. For example, if you try this code, the popover tip will not appear: ToolbarItem { Button(action: {...}) { Label("Tap here", systemImage: "gear") } .popoverTip(sampleTip) } There's an easy workaround for this issue. Just apply a style to the button. It can be any style. Some examples are bordered, borderless, plain and borderedProminent. Here's a fixed version of the above code: ToolbarItem { Button(action: {...}) { Label("Tap here", systemImage: "gear") } .buttonStyle(.plain) // Adding this line fixes the issue. .popoverTip(sampleTip) } Hope this helps anyone running into this issue.