I have a view, and in this view I bind Axis class values — lowerBound which is a regular property and at – computed one which comes from protocol HasPositionProtocol associated with Axis. struct AxisPropertiesView<Axis>: View where Axis: StyledAxisProtocol, Axis: HasPositionProtocol, Axis: Observable { @Bindable var axis: Axis var body: some View { HStack { TextField("", text: $axis.shortName) .frame(width: 40) TextField("", value: $axis.lowerBound, format: .number) .frame(width: 45) //Problem is here: Slider(value: $axis.at, in: axis.bounds) ... Unfortunately I got en error Failed to produce diagnostic for expression; ... for whole View. But if I remove Slider from View, error disappeared. What could cause this strange behaviour? Value of .at comes from: public extension HasPositionProtocol { ///Absolut position on Axis var at: Double { get { switch position { case .max: return bounds.upperBound case .min: return bounds.lowerBound case .number(let number): return number } } set { switch newValue { case bounds.lowerBound: position = .min case bounds.upperBound: position = .max default: position = .number(newValue) } } } }

Hi, The dataModule in code below is a swiftData object being passed to the view and its property as key path but when trying to modify it I'm getting the error ."Cannot assign through subscript: 'self' is immutable" how to solve this issue ? Kind Regards struct ListSel<T: PersistentModel>: View { @Bindable var dataModule: T @Binding var txtValue: String var keyPath: WritableKeyPath<T, String> var turncate: CGFloat? = 94.0 var image = "" var body: some View { HStack { Text(txtValue) .foregroundColor(sysSecondary) .font(.subheadline) .onChange(of: txtValue) { value in dataModule[keyPath: keyPath] = value } Image(systemName: image) .foregroundColor(sysSecondary) .font(.subheadline) .imageScale(.small) .symbolRenderingMode(.hierarchical) .scaleEffect(0.8) } .frame(width: turncate, height: 20, alignment: .leading) .truncationMode(.tail) } }

Desarrolle una app en xcode 16 para version minima de ios 16, todo funcionaba bien hasta la version 17 de ios, pero para ios 18 empezaron los problemas, los botones no responden a un toque, se deben sostener con un toque largo para que funcionen, ahora de un momento a otro ya no funciona para ninguna version de ios, los eventos tactiles deben ser prolongados para que se activen, en los botones o elementos que usan el tapgesture, he probado de todo versiones de xcode, versiones de swiftui, dispostivos reales, emuladores de todo y nada funciona, algun consejo o solucion gracias

Is there really no way to hide a TabItem using the built-in TabView? I have 6 pages, but the 6th one I want hidden from the bottom tab bar, because I have a button that programmatically navigates to it on the navigation bar. I did not want to have to code a custom tab bar due to losing some useful features like pop to root in Navigation Stack.

I want to share UserDefaults between main App and macOS Widget, in iOS I can do it using AppGroups, but how to do it between macOS Widget and main App, because macOS widget's AppGroup require to use "Team Identifier" as prefix and main App's AppGroup require prefix to be "group" so how can I share UserDefaults between the two?

I have an app with a TabView containing a view representable containing a SwiftUI View with a toolbar. The representable is providing the toolbar while the .toolbar modifier provides the content. Everything works normally on iOS 17, but on iOS 18 the toolbar contents are not showing. Is this a iOS 18 bug? See the code below for a simplified example. import SwiftUI @main struct TestApp: App { @State var selection: String = "one" var body: some Scene { WindowGroup { TabView(selection: $selection) { Representable() .tabItem { Text("One") } .tag("one") } } } } struct Representable: UIViewControllerRepresentable { let navigationController = UINavigationController() func makeUIViewController(context: Context) -> UINavigationController { navigationController.pushViewController(UIHostingController(rootView: ToolbarView()), animated: false) return navigationController } func updateUIViewController(_ uiViewController: UINavigationController, context: Context) {} } struct ToolbarView: View { var body: some View { NavigationLink("Navigate") { ToolbarView() } .toolbar { ToolbarItem(placement: .principal) { Text("Top") } } } }

I am using a Mac Catalyst with SwiftUI for our document-based app with DocumentGroup. The issue is that when we create a new document or open an existing one, the opened view is completely blank. It is only blank/empty when the "Optimzie for Mac" is checked. If it is "Scaled t oMatch iPad", then it works well. Xcode 16.1 macOS 15.1 struct DocumentGroupTestApp: App { var body: some Scene { DocumentGroup(newDocument: WritingAppDocument()) { file in TestView() // it is empty when it gets opened. It does not work if the option "Optimize for Mac" is checked. If it is scale iPad, then it works. } } } struct TestView: View { var body: some View { Text("Hello, World!") } }

In iOS18 the user can change their Home Screen customization to choose either light, dark, or tinted. If they choose tinted the widgets are rendered using the "accented" rendering mode and without a background. Is there some way to override so that the tinted mode is ignore completely and the widgets render as full color? I know about WidgetAccentedRenderingMode (https://developer.apple.com/documentation/widgetkit/widgetaccentedrenderingmode) but that's only for images, not the whole control and doesn't help with the background also being removed in the tinted mode.

I have this code to make ARVR Stereo View To Be Used in VR Box Or Google Cardboard, it uses iOS 18 New RealityView but it is not Act as an AR but rather Static VR on a Camera background so as I move the iPhone the cube move with it and that's not suppose to happen if its Anchored in a plane or to world coordinate. import SwiftUI import RealityKit struct ContentView : View { let anchor1 = AnchorEntity(.camera) let anchor2 = AnchorEntity(.camera) var body: some View { HStack (spacing: 0){ MainView(anchor: anchor1) MainView(anchor: anchor2) } .background(.black) } } struct MainView : View { @State var anchor = AnchorEntity() var body: some View { RealityView { content in content.camera = .spatialTracking let item = ModelEntity(mesh: .generateBox(size: 0.25), materials: [SimpleMaterial()]) anchor.addChild(item) content.add(anchor) anchor.position.z = -1.0 anchor.orientation = .init(angle: .pi/4, axis:[0,1,1]) } } } the thing is if I remove .camera like this let anchor1 = AnchorEntity() let anchor2 = AnchorEntity() It would work as AR Anchored to world coordinates but on the other hand is does not work but on the left view only not both views Meanwhile this was so easy before RealityView and SwiftUI by cloning the view like in ARSCNView Example : import UIKit import ARKit class ViewController: UIViewController, ARSCNViewDelegate, ARSessionDelegate { //create Any Two ARSCNView's in Story board // and link each to the next (dont mind dimensions) @IBOutlet var sceneView: ARSCNView! @IBOutlet var sceneView2: ARSCNView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. sceneView.delegate = self sceneView.session.delegate = self // Create SceneKit box let box = SCNBox(width: 0.1, height: 0.1, length: 0.1, chamferRadius: 0.01) let item = SCNNode(geometry: box) item.geometry?.materials.first?.diffuse.contents = UIColor.green item.position = SCNVector3(0.0, 0.0, -1.0) item.orientation = SCNVector4(0, 1, 1, .pi/4.0) // retrieve the ship node sceneView.scene.rootNode.addChildNode(item) } override func viewDidLayoutSubviews() // To Do Add the 4 Buttons { // Stop Screen Dimming or Closing While The App Is Running UIApplication.shared.isIdleTimerDisabled = true let screen: CGRect = UIScreen.main.bounds let topPadding: CGFloat = self.view.safeAreaInsets.top let bottomPadding: CGFloat = self.view.safeAreaInsets.bottom let leftPadding: CGFloat = self.view.safeAreaInsets.left let rightPadding: CGFloat = self.view.safeAreaInsets.right let safeArea: CGRect = CGRect(x: leftPadding, y: topPadding, width: screen.size.width - leftPadding - rightPadding, height: screen.size.height - topPadding - bottomPadding) DispatchQueue.main.async { if self.sceneView != nil { self.sceneView.frame = CGRect(x: safeArea.size.width * 0 + safeArea.origin.x, y: safeArea.size.height * 0 + safeArea.origin.y, width: safeArea.size.width * 0.5, height: safeArea.size.height * 1) } if self.sceneView2 != nil { self.sceneView2.frame = CGRect(x: safeArea.size.width * 0.5 + safeArea.origin.x, y: safeArea.size.height * 0 + safeArea.origin.y, width: safeArea.size.width * 0.5, height: safeArea.size.height * 1) } } } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) let configuration = ARWorldTrackingConfiguration() sceneView.session.run(configuration) sceneView2.scene = sceneView.scene sceneView2.session = sceneView.session } } And here is the video for it

Hello, I'm using an HMSoft Bluetooth module that connects reliably to Android devices, maintaining a stable connection. However, when I try to connect it to my iPhone 12, the connection randomly disconnects after a few minutes (usually around 3 minutes). This issue occurs even when using apps like LightBlue and other BLE-based medical equipment apps, so it doesn't seem related to my app code. Any suggestions on what I can do to prevent these unexpected disconnects? Should I change any specific settings on my iPhone or the module itself?

Hello, I'm seeing a strange error on another user's device where the SwiftUI file importer doesn't do anything at all. When selecting multiple files and hitting "open", the importer just freezes. Here's a video showing the problem: https://streamable.com/u5grgy I'm unable to replicate on my own device, so I'm not sure what could be going on. I have startAccessingSecurityScopedResource and stopAccessingSecurityResource everywhere I access a file from fileImporter as well.

Whan using a tabview set with a tabviewstyle of sidebaradaptable on macOS 15.1 beta 5 the tabs are non responsive and is basically broken. Example code... If you click around on these tabs you will see it is not responsive. When you add a lot more tabs from a for loop for example you really get poor performance. But this is not the case with earlier beta releases. TabView {                 Tab("One", systemImage: "1.circle.fill") {                     Text("Test One")                 }                 Tab("Two", systemImage: "2.circle.fill") {                     Text("Test Two")                 }                 Tab("Three", systemImage: "3.circle.fill") {                     Text("Test Three")                 }             }             .tabViewStyle(.sidebarAdaptable)

macOS: Sequoia Xcode: 16.1 I am working on a macOS app and it has a widget feature. When I use Swift 6 (Build Settings > Swift Language Version) in IntentExtension, the intent configuration won't show up in macOS Sequoia. If I downgrade to Swift 5, it works without any other changes. Is it a bug or am I missing something? How can I use Swift 6 with IntentExtension.

I have an issue using RealityView to show two screens of AR, while I did succeed to make it as a non AR but now my code not working. Also it is working using Storyboard and Swift with SceneKit, so why it is not working in RealityView? import SwiftUI import RealityKit struct ContentView : View { var body: some View { HStack (spacing: 0){ MainView() MainView() } .background(.black) } } struct MainView : View { @State var anchor = AnchorEntity() var body: some View { RealityView { content in let item = ModelEntity(mesh: .generateBox(size: 0.2), materials: [SimpleMaterial()]) content.camera = .spatialTracking anchor.addChild(item) anchor.position = [0.0, 0.0, -1.0] anchor.orientation = .init(angle: .pi/4, axis:[0,1,1]) // Add the horizontal plane anchor to the scene content.add(anchor) } } }

I am creating a UIKit application but that contains SwiftUI Views embedded using the hostingcontroller. I have a particular approach for it..but it requires instantiating a swiftUI view, creating a hostingcontroller object from it and storing a reference to it. So that later If I wanted to update the view, I can simply get the reference back and update the swiftUI view using it. I wanted to understand what does apple recommends on this. Can we store a swiftUI instance? Does it cause any issue or it is okay to do so?

I am making app which one of functionality is register user with firebase, but sometime when I register user I got app crash but user is added into db. I am getting error like this: EXC_BAD_ACCESS (code=2, address=0x2600000000) or adres = 0x10 which mean the is some memory leak but when I use instrumental leak every thing is ok. Second weird thing is that when I use instrumental leak I am not getting error (I added something like 40 users) but when I close instrumental and rebuilt I got crash in max 3 attempts. // FormComponent.swift // SpaceManager // // Created by Kuba Kromomołowski on 17/04/2024. // import Foundation import SwiftUI struct FormComponent: View { var isRegister: Bool = true @State private var repeatedPassword: String = "" @StateObject private var loginHandler = LoginViewModel() @StateObject private var registerHandler = RegisterViewModel() @EnvironmentObject var permissionViewModel: PermissionViewModel var body: some View { Form { TextField("Email", text: isRegister ? $registerHandler.email : $loginHandler.email) .textFieldStyle(RoundedBorderTextFieldStyle()) .font(.system(size: 25)) .multilineTextAlignment(.center) .autocapitalization(.none) .disableAutocorrection(true) SecureField("Hasło", text: isRegister ? $registerHandler.password : $loginHandler.password) .textFieldStyle(RoundedBorderTextFieldStyle()) .font(.system(size: 25)) .multilineTextAlignment(.center) .autocapitalization(.none) .disableAutocorrection(true) if (isRegister) { SecureField("Powtórz haslo", text: $registerHandler.repeatedPassword) .textFieldStyle(RoundedBorderTextFieldStyle()) .font(.system(size: 25)) .multilineTextAlignment(.center) .autocapitalization(.none) .disableAutocorrection(true) } BtnClearComponet(btnText: isRegister ? "Zarejestruj się" : "Zaloguj się", btnRegister: isRegister, action: { if isRegister { registerHandler.registerUser() { permissionViewModel.getPermission() } } else { loginHandler.userLogin() { permissionViewModel.getPermission() } } }, loginHandler: loginHandler, registerHandler: registerHandler ) .padding(.bottom, 5) } .frame(width:350,height:400) .scrollContentBackground(.hidden) .padding(.top, 50) } } // // RegisterViewModel.swift // SpaceManager // // Created by Kuba Kromomołowski on 03/05/2024. // import Foundation import Firebase import FirebaseAuth import FirebaseFirestore class RegisterViewModel : ObservableObject { @Published var email: String = "" @Published var password: String = "" @Published var repeatedPassword: String = "" @Published var isFail: Bool = false @Published var message: String = "" func registerUser(completion: @escaping () -> Void) { if(!validInput()){ return } Auth.auth().createUser(withEmail: email, password: password) { [weak self] res, err in guard let self = self else { return } if let err = err { self.isFail = true self.message = "Błąd przy rejestracji \(err.localizedDescription)" return } guard let userID = res?.user.uid else { return } // DispatchQueue.main.async { // print("Starting adding...") self.addIntoDatabe(userID: userID, email: self.email) // } completion() } } private func addIntoDatabe(userID: String, email: String) { let newUser = User(uid: userID, email: email, permission: Permission.Admin, itemReads: [["Prop":2]], numberOfAddedItem: 0, numberOfReadItem: 0) let db = Firestore.firestore() db.collection("users") .document(userID) .setData(["uid": newUser.uid, "email": newUser.email, "permission": newUser.permission.rawValue, "itemReads": newUser.itemReads, "numberOfAddedItem": newUser.numberOfAddedItem, "numberOfReadItem": newUser.numberOfReadItem]) print("User has been added into db") } }

When developing with SwiftUI, I encountered the following error: failed to produce diagnostic for expression; please submit a bug report (https://swift.org/contributing/#reporting-bugs) Since I don’t understand the reason behind this error, what details should I include in the report?

You'll have to forgive me, I am still pretty new to Swift, but I'm really struggling to figure out what I'm doing wrong or how I can fix it. I'm working on an app that generates an image from some views and then exports that image, but it always returns this very vague error: The operation couldn’t be completed. (SwiftUI.FileExportOperation.Error error 0.) Here's most of the program: import SwiftUI import UniformTypeIdentifiers struct ContentView: View { @State private var backgroundColor = Color.black @State private var fileExporterIsPresented = false @State private var image: NSImage? @State private var fileExporterErrorAlertIsPresented = false @State private var fileExporterErrorDescription: String? var body: some View { let wallpaper = Rectangle() .foregroundStyle(backgroundColor) .aspectRatio(16 / 9, contentMode: .fit) VStack { wallpaper .clipShape(.rect(cornerRadius: 10)) .overlay { RoundedRectangle(cornerRadius: 10) .strokeBorder(.separator, lineWidth: 5) } ColorPicker("Background Color", selection: $backgroundColor, supportsOpacity: false) Button("Generate Wallpaper") { let renderer = ImageRenderer(content: wallpaper.frame(width: 3840, height: 2160)) image = renderer.nsImage fileExporterIsPresented = true } .fileExporter( isPresented: $fileExporterIsPresented, item: image, contentTypes: [UTType.heic, UTType.png] ) { result in if case .failure(let error) = result { fileExporterErrorDescription = error.localizedDescription fileExporterErrorAlertIsPresented = true } } .alert("File Exporter Failure", isPresented: $fileExporterErrorAlertIsPresented, actions: { Button("OK") {} }, message: { if let fileExporterErrorDescription { Text(fileExporterErrorDescription) } }) .dialogSeverity(.critical) } .padding() } } #Preview { ContentView() }

Working on a macOS app. I need to display user-added images as a background to the view, with all of: Tiling (auto repeat in both axes) Scaling (user-configured scale of the image) Offset (user-configured offset) I've been able to achieve scaling and offset with: Image(nsImage: nsImage) .scaleEffect(mapImage.scale) .offset(mapImage.offset) .frame(width: scaledImageSize.width, height: scaledImageSize.height) But when I try to incorporate tiling into that with .resizable(resizingMode: .tile) everything breaks. Is there a way to position the "anchor" of an image, scale it, and tile it in both axes to fill a container view?

Hello team, We recently found a EXC_BAD_ACCESS crash when using UIHostingControllers on a SPM local Package in our application. This is happening from time to time when we run the app on simulators using Debug configurations. Also, this issue is consistent when we run application tests, there is something weird that we found after making a research... If we disable app test target and only keep packages tests, the crash is not happening, but as soon as we re-enable the app test target from the test suite the crash returns. This is the full error message: Thread 1: EXC_BAD_ACCESS (code=1, address=0xbad4017) A bad access to memory terminated the process. Is this s known issue? We've been performing explorations for some days and couldn't find any real solution for this. A basic call on UIHostingController inside of a SPM local Package is enough to make the app crash, nothing custom being done: UIHostingController(rootView: MyView())