I’m having a very odd problem in which my URLSession response works the first time, but almost always fails on subsequent calls. It’s taken me forever to debug because I needed to examine the response headers to determine anything at all. I used Proxyman based on a recommendation from Donny Wals -- https://www.donnywals.com/debugging-network-traffic-with-proxyman/ -- and — as far as I can tell — the only differences between the calls is that the first call returns: HTTP/1.1 200 OK Date: Tue, 06 Jun 2023 14:06:08 GMT Server: Apache Access-Control-Allow-Origin: * Access-Control-Allow-Methods: POST, GET, OPTIONS Access-Control-Allow-Headers: Content-Type, Depth, User-Agent, X-File-Size, X-Requested-With, If-Modified-Since, X-File-Name, Cache-Control Vary: Accept-Encoding,User-Agent Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache Content-Encoding: gzip Set-Cookie: PHPSESSID=d10701af2da595b698c57f183e76a709; path=/ Upgrade: h2 Connection: Upgrade, Keep-Alive Keep-Alive: timeout=5, max=100 Transfer-Encoding: chunked While subsequent calls return different values for Keep-Alive and Connection (and they’re returned in a different order): Second call same as first except: Keep-Alive: timeout=5, max=99 Connection: Keep-Alive Third Call same as first and second except: Upgrade: h2 Connection: Upgrade, Keep-Alive Keep-Alive: timeout=5, max=100 The subsequent calls also do not return the Set-Cookie value, and the Upgrade value appears sometimes but not others. All three return 200 OK, but my code is failing on this step: guard let (data, response) = try? await session.data(for: request), let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200 else { logger.debug("Failed to receive valid response and/or data.") throw MyError.missingData } This code is taken directly from the Earthquakes project at Apple (although I modified it slightly to send a POST to my API, which seems to work fine). What's even more frustrating is that the second and third call immediately return the correct JSON data (all formatted fine, etc.) just like the first call, so I cannot understand why they fail. I am completely stumped and hoping someone might have some idea of what I can do here, or even how I can debug better. Thanks immensely for any help you can provide.

I’m wondering if it’s possible to use SceneKit or GamePlayKit to handle physics etc and having SwiftUI to create the 3D content?

Hi I upgraded my Mac to test the new os and iOS 17. But I have problems with the weather kit on the app. WeatherKit enabled as app service and capability there was no issue with the iOS 16. What could be the problem? import Foundation import WeatherKit class WeatherKitManager: ObservableObject { @Published var weather: Weather? @Published var isFetchingWeather = false func getWeather(latitude: Double, longitude: Double) async { do { let receivedWeather = try await WeatherService.shared.weather(for: .init(latitude: latitude, longitude: longitude)) DispatchQueue.main.async { self.weather = receivedWeather } } catch { fatalError("\(error)") } } var symbol: String { weather?.currentWeather.symbolName ?? "xmark.app" } var temp: String { if let temp = weather?.currentWeather.temperature.converted(to: .celsius) { let formattedTemp = String(format: "%.1f", temp.value) return "\(formattedTemp)°C" } else { return "Yükleniyor..." } } } Errors here Ceyehat/WeatherKitManager.swift:22: Fatal error: Error Domain=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors Code=2 "(null)" Failed to generate jwt token for: com.apple.weatherkit.authservice with error: Error Domain=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors Code=2 "(null)" Encountered an error when fetching weather data subset; location=<+37.78583400,-122.40641700> +/- 0.00m (speed -1.00 mps / course -1.00) @ 06/06/2023, 5:32:55 PM GMT+03:00, error=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors 2 Error Domain=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors Code=2 "(null)"

Am just learning to use mapkit. Am attempting to draw 1 mile squares over a given region which can then me viewed on ipad or iphone. Ideally apple watch would provide haptic when such lines are crossed by the user. Where might I start?

The new Map builder SwiftUI is awesome. Does it support cluster annotations? I have opened FB12244017. Thank you very much!

Like the screenshot of the apple developer app: How do I in my app add a serch box at the top of the sidebar option in SwiftUI? Also how do I add an account link at the bottom of the sidbar?

I have an app that displays a large number of physically marked walking routes in The Netherlands. Loads of fun. For my next release I'm planning to add filters to the map, to make it easier to find the best route. I have build a solution for that, but I'm sure there's a more efficient or clean way to do this. Thus I turn to you, the community, for a sanity check. My setup data structure wise (unchangeable) - simplified to relevant-only for readability: struct Location: Codable, Identifiable, Hashable, Equatable { let id: Int let longitude, latitude: Double let routes: [Route] } struct Route: Codable, Identifiable { let id : Int let marking: String let distance: Double } I have an array of Location objects, which in turn include an array of Route objects (max 5). Each route has a distance (length of the walk) attribute. I want to filter for a specific distance. Routes are ordered by length inside a Location. So the shortest walk at a specific location is locations.place[xyz].route[0] I have a filter button setup that outputs a minDistance and maxDistance : Double that I feed into the filter fund. My current filter function solution checks index 0: return locations.places.filter { location in (minDistance..<maxDistance).contains(location.routes[0].distance) } This returns an array of locations where route[0] (the shortest walk at the location) matches the user's preferred walk length. This means that I miss a fair amount of positive results. I feel like something like this should be possible, to check all routes at a location: return locations.places.filter { location in (minDistance..<maxDistance).contains(location.routes[*].distance) } Unfortunately this doesn't work. Neither does [0...5] or similar thoughts. As I'm quite new at developing, and I only have short bursts of time to work on this app, I feel like I might be missing something very obvious here. Is there a way to change the .contains(location.routes[something-goes-here].distance) check to test all routes and not just index 0?

I'm working on a workout app which has an array within an array and takes user input to populate each array. In the first array, I can add an item to plans using the addPlan function. However, I cannot seem to figure out how to add items to the next level in the addExercise function. final class ViewModel: ObservableObject { @Published var plans: [Plan] = [] func addPlan(_ item: String) { let plan = Plan(name: item, exercise: []) plans.insert(plan, at: 0) } func addExercise() { } } Essentially, Plan holds an array of Exercise. Here is the model for Plan struct Plan: Identifiable { let id = UUID() let name: String var exercise: [Exercise] static let samplePlans = Plan(name: "Chest", exercise: [Exercise(name: "Bench"), Exercise(name: "Incline Bench")]) } These two functions should behave the same but just appending the items into different arrays. The end result would be: Plan 1: [Exercise1, Exercise2, Exercise3] Plan 2: [Exercise4, Exercise5, Exercise6] etc. Project files: LINK

Can someone please help me understand PassthroughSubject and CurrentValueSubject? What I understand so far is that they are subjects where subscribers can listen to changes made to these subjects, but I'm really straggling to understand the following. I'm I correct by saying that PassthroughSubject or CurrentValueSubject could replace delegation and asynchronous function calls? Is it possible to delare a subject in Class A and subscribe to listen to those subject changes in Class B and in some other classes or are listeners meant to only be used direclty in SwiftUI structs? Thanks

I am designing a unique calculator interface inspired by the stage manager, desktop experience, and Group FaceTime concepts. The interface consists of three draggable widgets that serve different purposes. The first widgets acts as the display for the calculator, providing a blank canvas for the calculations. The second widget contains scientific buttons, allowing users to perform advanced mathematical operations. The third widget consists of basic calculator buttons for standard arithmetic functions. By combining these elements, the calculator aims to provide a versatile and intuitive user experience. How can I implement a draggable interface for a calculator in SwiftUI that matches the image of my design below, where the user can interact with three separate rectangles representing the calculator display, working scientific buttons, and working basic calculator buttons? The design I'm trying to follow and the individual widgets are shown in this image: Here's a minimal SwiftUI code example that represents my attempt at the described draggable calculator interface: struct ContentView: View { @State private var displayPosition: CGSize = .zero @State private var scientificButtonsPosition: CGSize = .zero @State private var basicButtonsPosition: CGSize = .zero var body: some View { ZStack { Color.gray.opacity(0.2) .ignoresSafeArea() DraggableRectangle(position: $displayPosition, color: .white) { // Calculator Display // Customize the view as per your requirements Text("Display") .font(.title) } DraggableRectangle(position: $scientificButtonsPosition, color: .blue) { // Scientific Buttons // Customize the view as per your requirements Text("Scientific Buttons") .font(.headline) .foregroundColor(.white) } DraggableRectangle(position: $basicButtonsPosition, color: .green) { // Basic Calculator Buttons // Customize the view as per your requirements Text("Basic Buttons") .font(.headline) .foregroundColor(.white) } } .frame(minWidth: 800, minHeight: 600) } } struct DraggableRectangle<Content: View>: View { @Binding var position: CGSize let color: Color let content: () -> Content var body: some View { content() .frame(width: 400, height: 300) .background(color) .cornerRadius(8) .offset(position) .gesture( DragGesture() .onChanged { value in position = value.translation } .onEnded { _ in position = .zero } ) } }

Is there an easy way to convert a storyboard made for iOS to one made for a Mac? Failing that, is there an easy way to convert a storyboard to SwiftUI?

So I'm trying to use MapKit in a SwiftUI project targeting iOS/iPadOS. MapKit is obviously pretty limited in SwiftUI, but I've been getting warnings trying to set up basic annotations for the user to interact with. When I use a basic MapMarker everything is fine (although it's hard to do anything with it), but whenever I do anything with MapAnnotation, I get this warning in Xcode (14.0.1) whenever I move the map around: [SwiftUI] Publishing changes from within view updates is not allowed, this will cause undefined behavior. I'm no SwiftUI expert, and I get how to fix this issue when binding in something like a sheet, but I don't see how what I'm doing with MapAnnotation should be causing this. It looks like a bug to me, possibly complaining about the $region binding, but maybe I'm wrong? Am I doing something wrong or is this a bug? Below is some sample code that reproduces this easily for me (just launch an app with the below code and then drag the map around to see the constant warnings in Xcode). It's mostly an example from here: https://www.hackingwithswift.com/books/ios-swiftui/integrating-mapkit-with-swiftui import SwiftUI import MapKit struct Location: Identifiable {     let id = UUID()     let name: String     let coordinate: CLLocationCoordinate2D } struct ContentView: View {     @State private var region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: 51.5, longitude: -0.12), span: MKCoordinateSpan(latitudeDelta: 0.2, longitudeDelta: 0.2))     let locations = [         Location(name: "Buckingham Palace", coordinate: CLLocationCoordinate2D(latitude: 51.501, longitude: -0.141)),         Location(name: "Tower of London", coordinate: CLLocationCoordinate2D(latitude: 51.508, longitude: -0.076))     ]     var body: some View {         Map(coordinateRegion: $region, annotationItems: locations) { location in             MapAnnotation(coordinate: location.coordinate) {                 Circle()                     .stroke(.red, lineWidth: 3)                     .frame(width: 44, height: 44)             }         }         .navigationTitle("Map")         .edgesIgnoringSafeArea(.all)     } }

My app is crashing on iOS 15 when entering a screen and I have no idea from the logs what is going on. It all looks like internal SwiftUI stack trace. Would appreciate any help in the right direction: 0 AttributeGraph 0x422c AG::Graph::input_value_ref_slow(AG::data::ptr<AG::Node>, AG::AttributeID, unsigned int, AGSwiftMetadata const*, unsigned char&, long) + 344 1 AttributeGraph 0x1e54 AGGraphGetValue + 240 2 SwiftUI 0x204dd0 HitTestBindingFilter.updateValue() + 164 3 SwiftUI 0x25c62c partial apply for specialized implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:) + 24 4 AttributeGraph 0x3b18 AG::Graph::UpdateStack::update() + 524 5 AttributeGraph 0x3508 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, unsigned int) + 396 6 AttributeGraph 0x1c8c AG::Graph::value_ref(AG::AttributeID, AGSwiftMetadata const*, unsigned char&) + 192 7 AttributeGraph 0x1ea0 AGGraphGetValue + 316 8 SwiftUI 0xe2bc ViewGraph.responderNode.getter + 120 9 SwiftUI 0xe154 closure #1 in ViewRendererHost.responderNode.getter + 28 10 SwiftUI 0x15618 closure #1 in ViewRendererHost.updateViewGraph<A>(body:) + 108 11 SwiftUI 0xe0f8 ViewRendererHost.updateViewGraph<A>(body:) + 96 12 SwiftUI 0x151620 ViewRendererHost.responderNode.getter + 132 13 SwiftUI 0x1de298 FocusBridge.hostDidBecomeFirstResponder(in:) + 64 14 SwiftUI 0x2160cc FocusBridge.hostingControllerDidAppear() + 120 15 SwiftUI 0x33240 _UIHostingView.viewControllerDidAppear(transitionCoordinator:animated:) + 32 16 SwiftUI 0x39e70 UIHostingController.viewDidAppear(_:) + 100 17 SwiftUI 0x18550c @objc UIHostingController.viewDidAppear(_:) + 28 18 UIKitCore 0x1ab374 -[UIViewController _setViewAppearState:isAnimating:] + 892 19 UIKitCore 0x2972d8 -[UIViewController __viewDidAppear:] + 172 20 UIKitCore 0x6567d8 -[UINavigationController viewDidAppear:] + 192 21 UIKitCore 0x1ab374 -[UIViewController _setViewAppearState:isAnimating:] + 892 22 UIKitCore 0x99ee0c __52-[UIViewController _setViewAppearState:isAnimating:]_block_invoke_2 + 196 23 UIKitCore 0x2cc534 __52-[UIViewController _setViewAppearState:isAnimating:]_block_invoke + 228 24 CoreFoundation 0xd564 __NSARRAY_IS_CALLING_OUT_TO_A_BLOCK__ + 24 25 CoreFoundation 0x947f4 -[__NSSingleObjectArrayI enumerateObjectsWithOptions:usingBlock:] + 92 26 UIKitCore 0x1ab53c -[UIViewController _setViewAppearState:isAnimating:] + 1348 27 UIKitCore 0x2972d8 -[UIViewController __viewDidAppear:] + 172 28 UIKitCore 0x219a68 -[UIViewController _endAppearanceTransition:] + 252 29 UIKitCore 0x3b20e0 -[UINavigationController navigationTransitionView:didEndTransition:fromView:toView:] + 1500 30 UIKit 0x6e06c -[UINavigationControllerAccessibility navigationTransitionView:didEndTransition:fromView:toView:] + 112 31 UIKitCore 0x46b548 __49-[UINavigationController _startCustomTransition:]_block_invoke + 608 32 UIKitCore 0x23f458 -[_UIViewControllerTransitionContext completeTransition:] + 124 33 UIKitCore 0x9be66c __53-[_UINavigationParallaxTransition animateTransition:]_block_invoke.162 + 836 34 UIKitCore 0x12aa4dc __UIVIEW_IS_EXECUTING_ANIMATION_COMPLETION_BLOCK__ + 36 35 UIKitCore 0x2c2fac -[UIViewAnimationBlockDelegate _didEndBlockAnimation:finished:context:] + 728 36 UIKitCore 0x18ed0c -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 248 37 UIKitCore 0x1a350c -[UIViewAnimationState animationDidStop:finished:] + 244 38 UIKit 0xd305c -[UIViewAnimationStateAccessibility animationDidStop:finished:] + 212 39 XCTAutomationSupport 0x17ab8 XCTAnimationDidStop + 24 40 UIKitCore 0x1a3674 -[UIViewAnimationState animationDidStop:finished:] + 604 41 UIKit 0xd305c -[UIViewAnimationStateAccessibility animationDidStop:finished:] + 212 42 XCTAutomationSupport 0x17ab8 XCTAnimationDidStop + 24 43 QuartzCore 0xcbe50 CA::Layer::run_animation_callbacks(void*) + 280 44 libdispatch.dylib 0x3a30 _dispatch_client_callout + 20 45 libdispatch.dylib 0x11f48 _dispatch_main_queue_drain + 928 46 libdispatch.dylib 0x11b98 _dispatch_main_queue_callback_4CF + 44 47 CoreFoundation 0x51800 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 48 CoreFoundation 0xb704 __CFRunLoopRun + 2532 49 CoreFoundation 0x1ebc8 CFRunLoopRunSpecific + 600 50 GraphicsServices 0x1374 GSEventRunModal + 164 51 UIKitCore 0x514b58 -[UIApplication _run] + 1100 52 UIKitCore 0x296098 UIApplicationMain + 364 53 SwiftUI 0x23ff24 closure #1 in KitRendererCommon(_:) + 164 54 SwiftUI 0x16de08 runApp<A>(_:) + 252 55 SwiftUI 0x14f0f4 static App.main() + 128 56 BlueVine_Mobile 0x471284 static BlueVineMobileApp.$main() + 14 (BlueVine_MobileApp.swift:14) 57 BlueVine_Mobile 0x473ea8 main + 12 (BlueVine_MobileApp.swift:12) 58 ??? 0x101f99da4 (Missing)

I have an existing ScrollView view with a Picker. Upon selection of a picker value, and user pressing the details button, I want to append a view to the bottom of the existing view. I call detailsView. But it does not seem to work. @Environment(\.managedObjectContext) private var viewContext @Environment(\.dismiss) var dismiss @Environment(\.presentationMode) var presentationMode @Binding var chosenProvider: Provider? @State var selectedLocation: Location? @State private var vendorNames: [String] = [] @State private var selectedVendor:String? = nil @State private var showingSheet = false @State var state: String? @State var zip: String? var body: some View { ScrollView { VStack { HStack { Text("Select Vendor") Picker("Provider", selection: $selectedVendor , content: { ForEach(vendorNames,id: \.self, content: { name in Text(name) }) }) .pickerStyle(MenuPickerStyle()) .onTapGesture { self.getVendorNames() { providers, status in if (status) { vendorNames = providers } } } } .onChange(of: selectedVendor, perform: { newValue in selectedVendor = newValue }) .tint(.orange) Button { DetailsView() } label: { Label("Details", systemImage: "list.bullet.rectangle") .foregroundColor(.blue) } Spacer() } } .onAppear{ self.getVendorNames() { providers, status in if (status) { vendorNames = providers } } } .navigationTitle("Add Vendor") .toolbar { // Back button ToolbarItem(placement: .navigationBarLeading) { Button(action: { presentationMode.wrappedValue.dismiss() }, label: { HStack(spacing: 2) { Image(systemName: "chevron.backward") .foregroundColor(.black) Button("Back", action: { self.presentationMode.wrappedValue.dismiss() } ) .foregroundColor(.black) } }) } } .navigationViewStyle(StackNavigationViewStyle()) .navigationBarBackButtonHidden(true) } struct DetailsView: View { var body: some View { VStack { Text("Some Details") } } } func getVendorNames (completionHandler: @escaping ([String], Bool) -> Void ) { var names = ["Acme", "Abc"] completionHandler(names, true) } }

Although possibly frowned upon, collections of data are commonly input into spreadsheets and this remains, and probably alway will, the main means of data collection and storage rather than databases for scientists everywhere. It is necessary, therefore, to ascertain ways in which data acquired and stored through these means can be successfully extracted and put in a format which can be displayed using modern means of technology. Mobile phones and Tablets are commonly and increasingly being used to access and display data. However, the means by which these data are transferred are through Databases which may not be appealing to some who use spreadsheets to acquire and store their data. The important question is: Is there some straightforward means by which spreadsheet data (perhaps comma separated value (csv) files) can be read by the latest SwiftUI and Xcode 16 formats? This would be an enormous advantage to those who update files of data regularly. If this is so, then I will gladly spend the time to learn the nomenclature and structural language necessary to implement a simple app to display some rather complex data. I have scanned the forum for satisfactory suggestions to this problem but it seems that the software has moved on but the problem remains. Kind Regards,

Greetings, We have observed an alarming number of crashes exceeding 1 million across various operating systems and devices. These crashes consistently point to a PAC failure in the specialized PreferenceNode.find<A>(key:) + 16 (PreferenceList.swift:146) function. The stack trace is exclusively a system-level stack, lacking any application-level stacks for us to go on. This makes it rather impossible for us to debug within our own application, since we do not have system-level context. Our analysis suggests that this issue may stem from either a compiler bug or an incorrectly implemented virtual-function in the AttributeGraph framework, resulting in a pointer-authentication failure in the SwiftUI framework. Lastly, if it helps, based on our own logs, we have determined that the problem primarily occurs when users return from being in the background for more than 60 minutes. However, despite numerous attempts, we have been unable to reproduce the issue ourselves. We kindly request your guidance on the most effective approach to address this matter confidently.