Hi,
I'm trying to toggle the visibility of an overlay by using hovering. However, I found onHover() and onContinuousHover() don't work on visionOS. Is it intended?
Is there an solution for my case?
Explore the various UI frameworks available for building app interfaces. Discuss the use cases for different frameworks, share best practices, and get help with specific framework-related questions.
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Dear Apple Developer Support,
We found that on devices running iOS 26.1 Beta, if we set the separator style of a UITableView to None via xib, the setting will have no effect and the table view cells will show separators.
To reproduce this issue, I created a simple project. Please refer to the following screenshots.
On iOS 26.0, no separator is showing.
However on iOS 26.1, separators are showing.
We have already filed a bug report FB20365301. We'd like to know if this is a bug and if it will be fixed before iOS 26.1 is officially released.
Thank you.
Topic:
UI Frameworks
SubTopic:
UIKit
We're building a UGC AR app and are leveraging App Clips to distribute AR experiences without app download.
Since earlier this week, many of our users are reporting sharing experiences as App Clip doesn't work anymore. They are getting the message "AppClip unavailable" on a little card. We attached a QR code to try it yourself and a link to a different experience. We tried with multiple experiences and on multiple devices already.
https://scenery.app/experience/1C925FDE-E49A-489B-BA14-58A4E532E645
Interestingly, we can't pinpoint the issue to an exact device or OS.
We tested on many devices and on most, the AppClip is being displayed as unavailable, stating "App Clip unavailable", whereas it works on a few. It all worked fine last week (before September 12th).
iPhone 13 Pro Max, iOS26: works
iPhone SE, iOS 17: works
iPhone 16 Pro, iOS 26: doesn't work
iPhone 12 Pro Max, iOS 26: doesn't work
iPhone 12 mini, iOS 18: does not work
iPad 9th gen, iOS 26: doesn't work
Please help. Our users are very dissatisfied as they expect this to work and it's a crucial feature.
We already filed a radar via Feedback assistant:
FB20303890
Our app was just rejected by Apple because they say the subscription management sheet never loads. It just spins indefinitely.
We're using StoreKit's manageSubscriptionsSheet view modifier to present the sheet, and it's always worked for us when testing in SandBox.
Has anyone else had this problem?
Given that it's Apple's own code that got us rejected, what's our path forward?
SwiftUI Popover Crash on iPad During Resizing in Stage Manager with Exception.
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Trying to layout popover in the delegate callback popoverPresentationController:willRepositionPopoverToRect:inView: will lead to recursion. Do not force the popover's container view or an ancestor to layout in this callback.'
(Occurred from iPadOS 18.1)
struct ContentView: View {
@State var showPopover: Bool = false
var body: some View {
VStack {
Text("Hello, world!")
Button(action: {
showPopover = true
}, label: {
Text("Open Popover")
})
}
.padding()
.popover(isPresented: $showPopover, attachmentAnchor: .point(.trailing), content: {
VStack {
Text("Popover Content")
}
})
}
}
I am coming from C#, where Forms and Controls are placed similar to Swift Storyboards. I have been trying to learn Storyboards, but keep running across tutorials regarding SwiftUI, and Storyboard examples are few. So the question becomes, "how do I position controls on a Form using SwiftUI?" See the example below.
I have run across many videos that use either horizontal or vertical positioning of controls, but these examples are usually very simple, with items occupying only the center portion of the screen. I get stuck on examples that are more complicated.
The example below only shows the controls for the upper part of a Form, with some type of textbox (Viewform) below making up the rest of the Form.
How does one make more complicated placement of controls with SwiftUI?
In the WWDC 2025 session "Build a UIKit app with the with the new design", at the 23:22 mark, the presenter says:
And finally, when you no longer need the glass on screen animate it out by setting the effect to nil.
The video shows a UIVisualEffectView whose effect is set to a UIGlassEffect animating away as its effect is set to nil. But when I do this in my app (or a sample app), setting effect to nil does not remove the glass appearance. Is this expected? Is the video out of date? Or is this a bug?
All of these issues appear when the search controller is set on the view controller's navigationItem and the search controller's searchBar has its scopeButtonTitles set.
So far the following issues are affecting my app on iOS/iPadOS 26 as of beta 7:
When the scopeBarActivation of UISearchController is set to .onSearchActivation, the preferredSearchBarPlacement of the navigationItem is set to .integratedButton, and the searchBarPlacementAllowsToolbarIntegration is set to false (forcing the search icon to appear in the nav bar), on both iPhones and iPads, the scope buttons never appear. They don't appear when the search is activated. They don't appear when any text is entered into the search bar. FB19771313
I attempted to work around that issue by setting the scopeBarActivation to .manual. I then show the scope bar in the didPresentSearchController delegate method and hide the scope bar in the willDismissSearchController. On an iPhone this works though the display is a bit clunky. On an iPad, the scope bar does appear via the code in didPresentSearchController, but when any scope bar button is tapped, the search controller is dismissed. This happens when the app is horizontally regular. When the app on the iPad is horizontally compact, the buttons work but the search bar's text is not correctly aligned within the search bar. Quite the mess really. I still need to post a bug report for this issue. But if issue 1 above is fixed then I don't need this workaround.
When the scopeBarActivation of UISearchController is set to .onSearchActivation, the preferredSearchBarPlacement of the navigationItem is set to .stacked, and the hidesSearchBarWhenScrolling property of the navigationItem is set to false (always show the search bar), and this is all used in a UITableViewController, then upon initial display of the view controller on an iPhone or iPad, you are unable to tap on the first row of the table view except on the very bottom of the row. The currently hidden scope bar is stealing the touches. If you activate and then cancel the search (making the scope bar appear and then disappear) then you are able to tap on the first row as expected. The initially hidden scope bar also bleeds through the first row of the table. It's faint but you can tell it's not quite right. Again, this is resolved by activating and then canceling the search once. FB17888632
When the scopeBarActivation of UISearchController is set to .onSearchActivation, the preferredSearchBarPlacement of the navigationItem is set to integrated or .integratedButton, and the toolbar is shown, then on iPhones (where the search bar/icon appears in the toolbar) the scope buttons appear (at the top of the screen) the first time the search is activated. But if you cancel the search and then activate it again, the search bar never appears a second (or later) time. On an iPad the search bar/icon appears in the nav bar and you end up with the same issue as #1 above. FB17890125
Issues 3 and 4 were reported against beta 1 and still haven't been fixed. But if issue 1 is resolved on iPhone, iPad, and Mac (via Mac Catalyst), then I personally won't be affected by issues 2, 3, or 4 any more (but of course all 4 issues need to be fixed). And by resolved, I mean that the scope bar appears and disappears when it is supposed to each and every time the search is activated and cancelled (not just the first time). The scope bar doesn't interfere with touch events upon initial display of the view controller. And there are no visual glitches no matter what the horizontal size class is on an iPad.
I really hope the UIKit team can get these resolved before iOS/iPadOS 26 GM.
This new modifier is supposedly backported to iOS 17, but on attempting to use it on the latest iOS 18.5, this happens:
Symbol not found: _$s7SwiftUI17EnvironmentValuesV33_navigationIndicatorVisibilityABIAA0G0OvpMV
This happens with any usage of the modifier. An availability check won't save you either.
The cruelest part of this is that I only need the modifier on iOS 26, lmao.
Am I just missing something?
Topic:
UI Frameworks
SubTopic:
SwiftUI
Have a data model that sets certain fields as unique. If the user attempts to save a duplicate value, the save fails quietly with no indication to the user that the save failed. The program is on Mac OS 26.0.1
@Environment(\.modelContext) var modelContext
@Query private var typeOfContracts: [TypeOfContract]
@State private var typeName: String = ""
@State private var typeCode: String = ""
@State private var typeDescription: String = ""
@State private var contracts: [Contract] = []
@State private var errorMessage: String? = "Data Entered"
@State private var showAlert: Bool = false
var body: some View {
Form {
Text("Enter New Contract Type")
.font(.largeTitle)
.foregroundStyle(Color(.green))
.multilineTextAlignment(.center)
TextField("Contract Type Name", text: $typeName)
.frame(width: 800, height: 40)
TextField("Contract Type Code", text: $typeCode)
.frame(width: 800, height: 40)
Text("Contract Type Description")
TextEditor(text: $typeDescription)
.frame(width: 800, height: 200)
.scrollContentBackground(.hidden)
.background(Color.teal)
.font(.system(size: 24))
Button(action: {
self.saveContractType()
})
{
Text("Save new contract type")
}
}
}
func saveContractType() {
let typeOfContract = TypeOfContract(contracts: [])
typeOfContract.typeName = typeName
typeOfContract.typeCode = typeCode
typeOfContract.typeDescription = typeDescription
modelContext.insert(typeOfContract)
do {
try modelContext.save()
}catch {
errorMessage = "Error saving data: \(error.localizedDescription)"
}
}
}
I have tried to set alerts but Xcode tells me that the alerts are not in scope
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.
Hello, I've a question about performance when trying to render lots of items coming from SwiftData via a @Query on a SwiftUI List. Here's my setup:
// Item.swift:
@Model final class Item: Identifiable {
var timestamp: Date
var isOptionA: Bool
init() {
self.timestamp = Date()
self.isOptionA = Bool.random()
}
}
// Menu.swift
enum Menu: String, CaseIterable, Hashable, Identifiable {
var id: String { rawValue }
case optionA
case optionB
case all
var predicate: Predicate<Item> {
switch self {
case .optionA: return #Predicate { $0.isOptionA }
case .optionB: return #Predicate { !$0.isOptionA }
case .all: return #Predicate { _ in true }
}
}
}
// SlowData.swift
@main
struct SlowDataApp: App {
var sharedModelContainer: ModelContainer = {
let schema = Schema([Item.self])
let modelConfiguration = ModelConfiguration(schema: schema, isStoredInMemoryOnly: false)
return try! ModelContainer(for: schema, configurations: [modelConfiguration])
}()
var body: some Scene {
WindowGroup {
ContentView()
}
.modelContainer(sharedModelContainer)
}
}
// ContentView.swift
struct ContentView: View {
@Environment(\.modelContext) private var modelContext
@State var selection: Menu? = .optionA
var body: some View {
NavigationSplitView {
List(Menu.allCases, selection: $selection) { menu in
Text(menu.rawValue).tag(menu)
}
} detail: {
DemoListView(selectedMenu: $selection)
}.onAppear {
// Do this just once
// (0..<15_000).forEach { index in
// let item = Item()
// modelContext.insert(item)
// }
}
}
}
// DemoListView.swift
struct DemoListView: View {
@Binding var selectedMenu: Menu?
@Query private var items: [Item]
init(selectedMenu: Binding<Menu?>) {
self._selectedMenu = selectedMenu
self._items = Query(filter: selectedMenu.wrappedValue?.predicate,
sort: \.timestamp)
}
var body: some View {
// Option 1: touching `items` = slow!
List(items) { item in
Text(item.timestamp.description)
}
// Option 2: Not touching `items` = fast!
// List {
// Text("Not accessing `items` here")
// }
.navigationTitle(selectedMenu?.rawValue ?? "N/A")
}
}
When I use Option 1 on DemoListView, there's a noticeable delay on the navigation. If I use Option 2, there's none. This happens both on Debug builds and Release builds, just FYI because on Xcode 16 Debug builds seem to be slower than expected: https://indieweb.social/@curtclifton/113273571392595819
I've profiled it and the SwiftData fetches seem blazing fast, the Hang occurs when accessing the items property from the List. Is there anything I'm overlooking or it's just as fast as it can be right now?
How can we performantly scroll to a target location using TextKit 2?
Hi everyone,
I'm building a custom text editor using TextKit 2 and would like to scroll to a target location efficiently. For instance, I would like to move to the end of a document seamlessly, similar to how users can do in standard text editors by using CMD + Down.
Background:
NSTextView and TextEdit on macOS can navigate to the end of large documents in milliseconds. However, after reading the documentation and experimenting with various ideas using TextKit 2's APIs, it's not clear how third-party developers are supposed to achieve this.
My Code:
Here's the code I use to move the selection to the end of the document and scroll the viewport to reveal the selection.
override func moveToEndOfDocument(_ sender: Any?) {
textLayoutManager.ensureLayout(for: textLayoutManager.documentRange)
let targetLocation = textLayoutManager.documentRange.endLocation
let beforeTargetLocation = textLayoutManager.location(targetLocation, offsetBy: -1)!
textLayoutManager.textViewportLayoutController.layoutViewport()
guard let textLayoutFragment = textLayoutManager.textLayoutFragment(for: beforeTargetLocation) else {
return
}
guard let textLineFragment = textLayoutFragment.textLineFragment(for: targetLocation, isUpstreamAffinity: true) else {
return
}
let lineFrame = textLayoutFragment.layoutFragmentFrame
let lineFragmentFrame = textLineFragment.typographicBounds.offsetBy(dx: 0, dy: lineFrame.minY)
scrollToVisible(lineFragmentFrame)
}
While this code works as intended, it is very inefficient because ensureLayout(_:) is incredibly expensive and can take seconds for large documents.
Issues Encountered:
In my attempts, I have come across the following two issues.
Estimated Frames: The frames of NSTextLayoutFragment and NSTextLineFragment are approximate and not precise enough for scrolling unless the text layout fragment has been fully laid out.
Laying out all text is expensive: The frames become accurate once NSTextLayoutManager's ensureLayout(for:) method has been called with a range covering the entire document. However, ensureLayout(for:) is resource-intensive and can take seconds for large documents. NSTextView, on the other hand, accomplishes the same scrolling to the end of a document in milliseconds.
I've tried using NSTextViewportLayoutController's relocateViewport(to:) without success. It's unclear to me whether this function is intended for a use case like mine. If it is, I would appreciate some guidance on its proper usage.
Configuration:
I'm testing on macOS Sonoma 14.5 (23F79), Swift (AppKit), Xcode 15.4 (15F31d).
I'm working on a multi-platform project written in AppKit and UIKit, so I'm looking for either a single solution that works in both AppKit and UIKit or two solutions, one for each UI framework.
Question:
How can third-party developers scroll to a target location, specifically the end of a document, performantly using TextKit 2?
Steps to Reproduce:
The issue can be reproduced using the example project (download from link below) by following these steps:
Open the example project.
Run the example app on a Mac. The example app shows an uneditable text view in a scroll view. The text view displays a long text.
Press the "Move to End of Document" toolbar item.
Notice that the text view has scrolled to the bottom, but this took several seconds (~3 seconds on my MacBook Pro 16-inch, 2021). The duration will be shown in Xcode's log.
You can open the ExampleTextView.swift file and find the implementation of moveToEndOfDocument(_:). Comment out line 84 where the ensureLayout(_:) is called, rerun the app, and then select "Move to End of Document" again. This time, you will notice that the text view moves fast but does not end up at the bottom of the document.
You may also open the large-file.json in the project, the same file that the example app displays, in TextEdit, and press CMD+Down to move to the end of the document. Notice that TextEdit does this in mere milliseconds.
Example Project:
The example project is located on GitHub:
https://github.com/simonbs/apple-developer-forums/tree/main/how-can-we-performantly-scroll-to-a-target-location-using-textkit-2
Any advice or guidance on how to achieve this with TextKit 2 would be greatly appreciated.
Thanks in advance!
Best regards,
Simon
Seeing an issue in iOS 26.2 iPhone 17 simulator (haven't been able to reproduce on device or other simulators), where a view's state is reset after an alert is shown.
In this example the first LibraryView has the issue when alert is shown, the second LibraryView maintains state as expected.
struct ContentView: View {
var body: some View {
NavigationStack {
List {
VStack {
LibraryView(title: "Show view (Loss of state)")
}
LibraryView(title: "Show view (Works as expected)")
}
}
}
}
/// This view is from a package dependency and wants to control the presentation of the sheet internally
public struct LibraryView: View {
@State private var isPresented: Bool = false
let title: String
public init(title: String) {
self.title = title
}
public var body: some View {
Button(self.title) {
self.isPresented = true
}
.sheet(isPresented: self.$isPresented) {
ViewWithAlert()
}
}
}
private struct ViewWithAlert: View {
@State private var isPresented: Bool = false
@State private var presentedCount = 0
var body: some View {
Button("Show Alert, count: \(presentedCount)") {
isPresented = true
presentedCount += 1
}
.alert("Hello", isPresented: self.$isPresented) {
Button("OK") { }
}
}
}
Any ideas?
The issue can be corrected by moving the .sheet to a higher level within the layout (i.e. on the NavigationStack). However, the library wants to control that presentation and not require the integration to present the sheet.
Topic:
UI Frameworks
SubTopic:
SwiftUI
NavigationTitle does not change when the app language changes. It works well in iOS 17.5 but does not in iOS 18.x
Description:
I’m encountering an issue where the Apple Watch’s watchOS version is lower than the deployment target specified in my Xcode project.
For example, my Watch device is running watchOS 10.6, but my app’s deployment target is set to watchOS 9.6 or 10.6, and Xcode shows an error stating:
Error: “watchOS version doesn’t match the app’s deployment target.”
Could someone clarify how to properly handle this version mismatch?
Environment:
Xcode 26
iPhone: iOS 18
Apple Watch: watchOS 10.6
Any guidance or best practices would be appreciated.
We're seeing sporadic crashes on devices running iOS 18.1 - both beta and release builds (22B83). The stack trace is always identical, a snippet of it below. As you can tell from the trace, it's happening in places we embed SwiftUI into UIKit via UIHostingController.
Anyone else seeing this?
4 libobjc.A.dylib 0xbe2c _objc_fatalv(unsigned long long, unsigned long long, char const*, char*) + 30
5 libobjc.A.dylib 0xb040 weak_register_no_lock + 396
6 libobjc.A.dylib 0xac50 objc_storeWeak + 472
7 libswiftCore.dylib 0x43ac34 swift_unknownObjectWeakAssign + 24
8 SwiftUI 0xeb74c8 _UIHostingView.base.getter + 160
9 SwiftUI 0x92124 _UIHostingView.layoutSubviews() + 112
10 SwiftUI 0x47860 @objc _UIHostingView.layoutSubviews() + 36
UITextView crash when setting attributed text that contains substring ffi and attributedText contains NSFontAttributeName, NSForegroundColorAttributeName
Reproducible case:
UITextView *textView = [[UITextView alloc] init];
textView.attributedText = [[NSAttributedString alloc] initWithString:@"ffi" attributes:@{
NSParagraphStyleAttributeName: [self createParagraphOfLineHeight:20],
NSFontAttributeName: [UIFont systemFontOfSize:fontSize weight:UIFontWeightRegular],
NSForegroundColorAttributeName: UIColor.black
}];
In beta 2 using layer.cornerRadius on a UIEffectView with the UIGlassEffect allowed you to change the corner radius of the view. In beta 3, this no longer works. WWDC videos indicate the right way to do this is to set the cornerConfiguration on the UIEffectView, but that API doesn't seem to be available yet. At this time it doesn't seem like theres a way to have a glass view that isn't pill shaped.
I work on a universal app that targets both iPhone and iPad. Our iPad app currently requires full screen. When testing on the latest iPadOS 26 beta, we see the following warning printed to the console:
Update the Info.plist: 1) `UIRequiresFullScreen` will soon be ignored. 2) Support for all orientations will soon be required.
It will take a fair amount of effort to update our app to properly support presentation in a resizable window. We wanted to gauge how urgent this change is. Our testing has shown that iPadOS 26 supports our app in a non-resizable window.
Can someone from Apple provide any guidance as to how soon “soon” is? Will UIRequiresFullScreen be ignored in iPadOS 26? Will support for all orientations be required in iPadOS 26?