I have the following scenario that I want to implement import SwiftUI struct Deck: Identifiable {     var id: String { name }     var name: String } struct DemoListView: View {     @State var decks: [Deck] = [         Deck(name: "Dark Magician"),         Deck(name: "Eldlich"),         Deck(name: "Hero"),         Deck(name: "Hero Isolde"),         Deck(name: "Orcust"),         Deck(name: "Dino"),         Deck(name: "Salamangreat"),         Deck(name: "Sky Striker"),     ]     var body: some View {         NavigationView {             List {                 ForEach(0..<decks.count) { index in                     DemoItemView(text: decks[index].name)                 }             }             .listStyle(SidebarListStyle())             .frame(minWidth: 200, alignment: .leading)         }     } } struct DemoItemView: View {     @Binding var text: String     @State var isEditing: Bool = false     var body: some View {         Group {             if isEditing {                 TextField(text, text: $text, onCommit: { isEditing.toggle() })                     .textFieldStyle(PlainTextFieldStyle())             } else {                 HStack {                     Text(text)                         .font(.headline)                     Spacer()                 }             }         }     } } In summary: I have a list of Deck models I want to display them on a List If an element of the list is double tapped then I will toggle the element's isEditing property when the text is editing, I will use a TextField that needs a binding to the edited text the text comes from a property of Deck, which is an element in the array The line of code DemoItemView(text: decks[index].name) Is not correct, but this is why I am trying to achieve. I'm trying to get a binding to an element of the collection if that's even possible. Maybe I took the wrong approach to solve this problem, if so I would like some advice. At the end I want to implement a list of element and be able to edit inline the text of those elements (in macOS).

There was another post - https://developer.apple.com/forums/thread/651748 asking how to use @FocusedBinding . I'm trying to use @FocusedBinding in the following context. I have a view that contains a @State array property of type [DeckViewModel] Within the view, I display the list of those models I can tap on one item to select it, storing that selection in a @State var currentDeck: DeckViewModel? property. Then I define the properties needed to use @FocusedBinding struct FocusedDeckKey : FocusedValueKey {     typealias Value = Binding&lt;DeckViewModel?&gt; } extension FocusedValues {     var currentDeck: FocusedDeckKey.Value? {         get { self[FocusedDeckKey.self] }         set { self[FocusedDeckKey.self] = newValue }     } } And set the value in the view .focusedValue(\.currentDeck, $appState.currentDeck) Finally, in the struct I try to set the preferences I use it like: struct AppCommands: Commands {     @FocusedBinding(\.currentDeck) private var currentDeck: DeckViewModel? } Then I get the following error: ❌ Type of expression is ambiguous without more context Which makes sense, as the FocusedValues.currentDeck is of type Binding&lt;DeckViewModel?&gt;? So the syntax of @FocusedBinding(\.currentDeck) private var currentDeck: DeckViewModel? is not correct for these types. But I am not sure how to express this correctly. The idea of the binding to an optional value seems ok to me, but it brings this complexity regarding the types and this API. Then. How can I make @FocusedBinding work with this optional? or How should I solve this issue? considering I'm trying to represent the selection of an item of a list Thanks

I've been building our app to make a release in App Store with Xcode Cloud Currently the builds are failing with the following error: The value of CFBundleShortVersionString in your WatchKit app's Info.plist (3.9.0) does not match the value in your companion app's Info.plist (4.7.0). These values are required to match. This is strange, as in our ci_pre_xcodebuild script we have an invocation of the code echo "Version: ${versionNumber}" echo "Setting version string in plists" echo "iOS Version:" /usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString $versionNumber" $CI_WORKSPACE/MainApp/Resources/Plists/Info.plist /usr/libexec/PlistBuddy -c "Print :CFBundleShortVersionString $versionNumber" $CI_WORKSPACE/MainApp/Resources/Plists/Info.plist echo "Watch Version:" /usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString $versionNumber" $CI_WORKSPACE/WatchApp/Info.plist /usr/libexec/PlistBuddy -c "Print :CFBundleShortVersionString $versionNumber" $CI_WORKSPACE/WatchApp/Info.plist echo "Watch Extension Version:" /usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString $versionNumber" $CI_WORKSPACE/WatchAppExtension/Resources/Info.plist /usr/libexec/PlistBuddy -c "Print :CFBundleShortVersionString $versionNumber" $CI_WORKSPACE/WatchAppExtension/Resources/Info.plist On which the command executes correctly and shows the right output. Then I don't understand what's going on. This workflow was working a couple weeks ago and we haven't done a change to it since then. Any ideas of what could it be?

For some time, whenever I use ⌘⇧A (command + shift + A) to toggle appearance from light to dark mode, nothing happens. The same hen pressing the Features > Toggle Appearance in the menu item. I saw a mention about this issue in https://developer.apple.com/forums/thread/707994?answerId=716995022#716995022 For that, I assume it may not be a systematic issue, but a problem with some cached file or something in the simulator and/or Xcode project

Xcode version: 14.1 beta 3 (14B5033e) It happens often to me that when I try to run the Xcode previews I see a failure of the type symbol(s) not found for architecture arm64 The full message looks like: LinkDylibError: Failed to build BannerImageDemoView.swift Check the issue navigator for any compilation errors.  ld: warning: directory not found for option '-F/Applications/Xcode-beta.app/Contents/SharedFrameworks-iphonesimulator' Undefined symbols for architecture arm64:   "_$s8SATSCore11BannerImageV13imageViewData5titleAcA0ceF0OSg_SStcfC", referenced from:       _$s7DemoApp011BannerImageA4ViewV0ab20_PreviewReplacement_cdaE2_1E15__preview__body33_E76125F4FD74D49C73B828FC57CA03FALLQrvg7SwiftUI05TupleE0VyAG6SpacerV_8SATSCore0cD0VAKtGyXEfU_ in BannerImageDemoView.1.preview-thunk.o   "_$s8SATSCore11BannerImageV7SwiftUI4ViewAAMc", referenced from:       _$s8SATSCore11BannerImageVAC7SwiftUI4ViewAAWl in BannerImageDemoView.1.preview-thunk.o   "_$s8SATSCore11BannerImageVMa", referenced from:       _$s7DemoApp011BannerImageA4ViewV0ab20_PreviewReplacement_cdaE2_1E15__preview__body33_E76125F4FD74D49C73B828FC57CA03FALLQrvg7SwiftUI05TupleE0VyAG6SpacerV_8SATSCore0cD0VAKtGyXEfU_ in BannerImageDemoView.1.preview-thunk.o       _$s7SwiftUI6VStackVyAA9TupleViewVyAA6SpacerV_8SATSCore11BannerImageVAGtGGWOh in BannerImageDemoView.1.preview-thunk.o       _$s8SATSCore11BannerImageVWOc in BannerImageDemoView.1.preview-thunk.o       _$s8SATSCore11BannerImageVAC7SwiftUI4ViewAAWl in BannerImageDemoView.1.preview-thunk.o       _$s8SATSCore11BannerImageVWOh in BannerImageDemoView.1.preview-thunk.o       _$s7SwiftUI9TupleViewVyAA6SpacerV_8SATSCore11BannerImageVAEtGWOb in BannerImageDemoView.1.preview-thunk.o       _$s7SwiftUI9TupleViewVyAA6SpacerV_8SATSCore11BannerImageVAEtGWOc in BannerImageDemoView.1.preview-thunk.o       ...   "_$s8SATSCore11BannerImageVMn", referenced from:       _symbolic _____y_____y___________ACtGG 7SwiftUI6VStackV AA9TupleViewV AA6SpacerV 8SATSCore11BannerImageV in BannerImageDemoView.1.preview-thunk.o       _symbolic _____y_____y_____y___________ACtGG_Qo_ 7SwiftUI4ViewPAAE15navigationTitleyQrAA18LocalizedStringKeyVFQO AA6VStackV AA05TupleC0V AA6SpacerV 8SATSCore11BannerImageV in BannerImageDemoView.1.preview-thunk.o       _symbolic _____y___________ABtG 7SwiftUI9TupleViewV AA6SpacerV 8SATSCore11BannerImageV in BannerImageDemoView.1.preview-thunk.o       _symbolic _____y___________y___________ADtGG 7SwiftUI13_VariadicViewO4TreeV AA13_VStackLayoutV AA05TupleD0V AA6SpacerV 8SATSCore11BannerImageV in BannerImageDemoView.1.preview-thunk.o       _symbolic ___________AAt 7SwiftUI6SpacerV 8SATSCore11BannerImageV in BannerImageDemoView.1.preview-thunk.o   "_$s8SATSCore13ImageViewDataOMa", referenced from:       _$s7DemoApp011BannerImageA4ViewV0ab20_PreviewReplacement_cdaE2_1E15__preview__body33_E76125F4FD74D49C73B828FC57CA03FALLQrvg7SwiftUI05TupleE0VyAG6SpacerV_8SATSCore0cD0VAKtGyXEfU_ in BannerImageDemoView.1.preview-thunk.o       _$s7SwiftUI6VStackVyAA9TupleViewVyAA6SpacerV_8SATSCore11BannerImageVAGtGGWOh in BannerImageDemoView.1.preview-thunk.o       _$s8SATSCore11BannerImageVWOc in BannerImageDemoView.1.preview-thunk.o       _$s8SATSCore11BannerImageVWOh in BannerImageDemoView.1.preview-thunk.o       _$s7SwiftUI9TupleViewVyAA6SpacerV_8SATSCore11BannerImageVAEtGWOb in BannerImageDemoView.1.preview-thunk.o       _$s7SwiftUI9TupleViewVyAA6SpacerV_8SATSCore11BannerImageVAEtGWOc in BannerImageDemoView.1.preview-thunk.o       _$s7SwiftUI9TupleViewVyAA6SpacerV_8SATSCore11BannerImageVAEtGWOh in BannerImageDemoView.1.preview-thunk.o       ...   "_$s8SATSCore13ImageViewDataOMn", referenced from:       _symbolic _____Sg 8SATSCore13ImageViewDataO in BannerImageDemoView.1.preview-thunk.o ld: symbol(s) not found for architecture arm64 This happens when trying to build the previews for this file https://github.com/sats-group/SATSCore-iOS/blob/main/DemoApp/DemoApp/Views/Components/BannerImage/BannerImageDemoView.swift our set up is: The DemoApp is inside the repo of the library called SATSCore SATSCore references a private SPM package dependency called SATSType that contains the private font assets I am not that familiar on how linkers work and why it's failing on Xcode previews. This happens to me in several version of Xcode 14. In Xcode 13.4.1 this doesn't happen. I would like to understand this error, as it's any way to solve this (tried the typical remove derived data + restarting Xcode), so any insights to understand more this kinds of errors would be very helpful. Thanks

I have the following app hierarchy SceneDelegate UIHostingController RootView: View UIViewControllerRepresentable MainViewController: UITabBarController - first tab UINavigationController UIHostingController<SampleContentTabView> 🟡 - second tab UINavigationController SampleContentAdapterController: UIViewController UIHostingController<SampleContentTabView> 🔴 With a sample view like struct SampleContentTabView: View { @State var name: String = "sample" var body: some View { Text(name) .navigationTitle("\(name) view") } } The thing is that the first tab will correctly set the navigation title in the case of 🟡, but not in the second tab with 🔴 Is this an issue with SwiftUI? Am I missing something? A simplified version of the SampleContentAdapterController would be like: class SampleContentAdapterController: UIViewController { let name: String init(name: String, color: Color) { self.name = name super.init(nibName: nil, bundle: nil) } private lazy var hostingController: UIHostingController = { UIHostingController( rootView: SampleContentTabView(name: name) ) }() var hostingView: UIView { hostingController.view } override func viewDidLoad() { super.viewDidLoad() view.addSubview(hostingView) hostingView.translatesAutoresizingMaskIntoConstraints = false hostingView.pinToSuperview() addChild(hostingController) hostingController.didMove(toParent: self) } } A full runnable version can be found in: https://github.com/fespinoza/reproducing-bugs/tree/main/NavigationBar

I work in an app that has a companion Apple Watch app. Previously, we used a token for authenticate request that didn't really expire, now we are fixing this and using an OAuth provider for the authentication token. Now, with the username/password of the user we get an OAuth token for the iOS app. We can refresh the OAuth token only once, after that, the refresh token gets invalidated. That's not a problem for the iOS app as we get a new access/refresh token. In the case of the watch app. I'm curious which kinds of strategies do people use to authenticate the user in the watch app. Previously, we just shared the non-expiring token via watch connectivity and that was good enough. Now we won't be able to do that with the iOS app's OAuth token, as we can only use the refresh token once. So sharing that token between 2 apps doesn't work. I wonder what people use in this situation? specially for users that are already logged in, so we cannot get an independent token for the watch app with the username/password combination. how do you use OAuth between the iOS and watchOS apps? which oauth flows do you use in your apps? how would you solve this case? thanks!

I'm using Xcode 15 15A240d Similarly to https://developer.apple.com/forums/thread/731732 when I try to run the Xcode previews for watchOS views in a watchOS target I get compilation errors from UIKit code. This is only valid for Xcode Previews. Building the code normally / Run it on simulator or device works. I don't understand why Xcode attempts to build iOS code. my scheme does include the host app for the watch I made a duplicate of that scheme by unchecking the host app and that makes previews work again. I'm not sure this is the intended behavior. I double checked and this was not the case with Xcode 14.3.1 I could run the initial target without issues on Xcode previews. Do you experience the same issue? is this a problem with my scheme settings or an Xcode bug?

Hi, I’m using the snapshot testing library from https://github.com/pointfreeco/swift-snapshot-testing I recorded the snapshot tests on the iPhone 15 pro simulator on iOS 17.4 and Xcode 15.3 On my M1 Max MacBook Pro Within the tests found in https://github.com/fespinoza/sample-json-app/blob/84b81ee3fa1d24e97bbeded65487b32258a42325/SampleProjectTests/MovieDetails/MovieDetailsViewTests.swift I try to control all the traits and properties I can, to make sure the test is run in the same environment in Xcode Cloud For some reason though, on Xcode Cloud, Text with multiline strings have a different line height than on my machine and thus the test fail I don’t understand: why that happens how to debug this situation Does anyone here have any pointers? Reference Image From my machine Failure Image from Xcode Cloud P.S. thread initially posted in https://github.com/pointfreeco/swift-snapshot-testing/discussions/842 but i haven’t gotten any answers, trying here instead

Hi, I'm a bit stuck when it comes to implementing live activities. I'm trying to start one by sending a push. my activity attributes looks like: import Foundation import ActivityKit public struct NeoPrototypeActivity: ActivityAttributes { public let classId: String public let name: String public let room: String public let startTime: Date public init(classId: String, name: String, room: String, startTime: Date) { self.classId = classId self.name = name self.room = room self.startTime = startTime } public struct ContentState: Codable & Hashable { public let participationState: ParticipationState public init(participationState: ParticipationState) { self.participationState = participationState } } } public enum ParticipationState: String, Codable, Hashable, Equatable { case upcoming case upcomingOnWaitingList case checkedIn case waitingList case lostSpot case lostSpotFromWaitingList case classCompleted public var description: String { switch self { case .upcoming: return "Upcoming" case .upcomingOnWaitingList: return "Upcoming on Waiting List" case .checkedIn: return "Checked In" case .waitingList: return "Waiting List" case .lostSpot: return "Lost Spot" case .lostSpotFromWaitingList: return "Lost Spot from Waiting List" case .classCompleted: return "Class completed" } } } which I have in a SPM package that is imported by my widget and iOS targets. Then I am sending a push notification (to my simulator in this case) with the following payload { "aps": { "timestamp": 1728419211, "event": "start", "content-state": { "participationState": "upcoming" }, "attributes-type": "NeoPrototypeActivity", "attributes": { "classId": "1234", "name": "Indoor Running", "room": "room 2", "startTime": "2024-10-19T13:22:59+02:00" }, "alert": { "title": "Hola Mundo", "body": "Todo Bien" } } } I am using the right values for the deviceID when sending the push. I get a 200 ok from the CloudKit console. yet my live activity doesn't start. I'm trying to look at the errors in the Console app and the only relevant thing is see is: [NeoPrototypeActivity] Error creating activity: NSCocoaErrorDomain (4864) The data couldn’t be read because it isn’t in the correct format. It seems like a decoding error, but I don't know what exactly failed I wrote some test to try the decoding like: import Testing import Foundation @testable import PrototypeActivities @Test func decoding() async throws { struct StateContainer: Codable { let participationState: ParticipationState } let jsonString = """ { "participationState": "upcoming" } """ let json = try #require(jsonString.data(using: .utf8)) let result = try JSONDecoder().decode(StateContainer.self, from: json) #expect(result.participationState == .upcoming) } @Test func decodingActivity() throws { // let jsonString = """ // { // "classId": "1234", // "name": "Indoor Running", // "room": "room 2", // "startTime": "2024-10-19T11:22:59Z" // } // """ let jsonString = """ { "classId": "1234", "name": "Indoor Running", "room": "room 2", "startTime": 1729337784 } """ let json = try #require(jsonString.data(using: .utf8)) let jsonDecoder = JSONDecoder() // jsonDecoder.dateDecodingStrategy = .iso8601 let activity = try jsonDecoder.decode(NeoPrototypeActivity.self, from: json) #expect(activity.classId == "1234") #expect(activity.name == "Indoor Running") }``` but even with using the default JSON decoder date format, I still get the same error. Not sure how to fix this or to get more details.