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I've spent 3 days moving localization from my older project to my new project and converted to Strings Catalog.
When I tried to export, I got the Unable to build project for localization string extraction error.
Read about that and the workaround seems to be to set Localisation Export Supported to NO, which I did.
I worked once and now it refuses to export and complains about missing targets, which I had to remove from the export process as recommended. WTH?
Or, at some point it complained about a missing Swift Package.
wwdc2023-10155
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Since iOS/iPadOS beta 6, I get a crash just by simply selecting an item in the sidebar of a navigation view. The selected item is part of an app mode, with conforms to the Observation protocol:
import SwiftUI
import Observation
@main
struct MREAApp: App {
@State private var appModel = AppModel.shared
var body: some Scene {
WindowGroup {
ContentView()
.environment(appModel)
}
}
}
@Observable class AppModel {
static var shared = AppModel()
var selectedFolder: Folder? = nil
}
struct Folder: Hashable, Identifiable {
let id = UUID()
let name: String
}
struct ContentView: View {
@Environment(AppModel.self) private var appModel
var folders = [Folder(name: "Recents"), Folder(name: "Deleted"), Folder(name: "Custom")]
var body: some View {
NavigationSplitView {
SidebarView(appModel: appModel, folders: folders)
} detail: {
if let folder = appModel.selectedFolder {
Text(folder.name)
}
else {
Text("No selection")
}
}
}
}
struct SidebarView: View {
@Bindable var appModel: AppModel
var folders: [Folder]
var body: some View {
List(selection: $appModel.selectedFolder) {
ForEach(folders, id: \.self) { folder in
NavigationLink(value: folder) {
Text(folder.name)
}
}
}
}
}
To reproduce the bug, just tap on one of the item.
Oddly enough, this works fine in the Simulator.
macOS 14 beta 5 is not affected either.
Apple folks: FB12981860
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Is it possible to have sections in a SwiftUI table? I cannot find any documentation or examples that show that it is.
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Like title says. Why make users jump through hoops on macOS to redeem a code while it's trivial on iOS?
At least make the button open the Mac App Store app to the redeem sheet!
FB13202274
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For some reason, a List will reset its selection to nil when the app is in the background.
Steps to reproduce the issue:
Run attached sample project
Once the app has launched, select a name in the sidebar
Move the app to the background
Wait a few seconds
Bring back the app to the foreground
Expected result:
The list selection should still be valid
Actual result:
The list selection is set to nil
Notes:
I’m using a StateObject, which should be the way to ensure that data isn’t regenerated when views are rendered. Is this a bug or something else needs to be taken care of?
class AppModel: ObservableObject {
@Published var selectedPerson: Person?
}
@main
struct NilListSelectionApp: App {
@StateObject var appModel = AppModel()
var body: some Scene {
WindowGroup {
ContentView()
.environmentObject(appModel)
}
}
}
struct Person: Identifiable, Hashable {
let id: UUID
let firstname: String
init(firstname: String) {
id = UUID()
self.firstname = firstname
}
}
struct ContentView: View {
@EnvironmentObject private var appModel: AppModel
var body: some View {
NavigationSplitView {
SidebarView()
} detail: {
PersonView(person: appModel.selectedPerson)
}
}
}
struct SidebarView: View {
@EnvironmentObject private var appModel: AppModel
private let persons = [Person(firstname: "Joe"), Person(firstname: "Jane")]
var body: some View {
List(persons, id:\.self, selection: $appModel.selectedPerson) { person in
Text(person.firstname).tag(person)
}
.listStyle(.sidebar)
}
}
struct PersonView: View {
let person: Person?
var body: some View {
if let person {
Text(person.firstname)
}
else {
Text("No Selection")
}
}
}
Post not yet marked as solved
How come keyboard shortcuts associated to toolbar items do not show up when you hold down the command key?
import SwiftUI
struct ContentView: View {
var body: some View {
NavigationStack {
VStack {
Image(systemName: "globe")
.imageScale(.large)
.foregroundStyle(.tint)
Text("Hello, world!")
Button {
} label: {
Text("Tap Me!")
}
.keyboardShortcut("o", modifiers: .command)
}
.padding()
.toolbar {
ToolbarItem {
Button {
} label: {
Image(systemName: "bolt")
}
.keyboardShortcut("k", modifiers: .command)
}
}
}
}
}
See screenshot. The shortcut for "Tap Me!" is being shown but not the one for the toolbar item. Am I doing something wrong or this is just not supported yet in SwiftUI? If that's the case, that seems to be a significant omission.
Post not yet marked as solved
I'm trying to create a List that allows multiple selection. Each row can be edited but the issue is that since there's a tap gesture on the Text element, the list is unable to select the item.
Here's some code:
import SwiftUI
struct Person: Identifiable {
let id: UUID
let name: String
init(_ name: String) {
self.id = UUID()
self.name = name
}
}
struct ContentView: View {
@State private var persons = [Person("Peter"), Person("Jack"), Person("Sophia"), Person("Helen")]
@State private var selectedPersons = Set<Person.ID>()
var body: some View {
VStack {
List(selection: $selectedPersons) {
ForEach(persons) { person in
PersonView(person: person, selection: $selectedPersons) { newValue in
// ...
}
}
}
}
.padding()
}
}
struct PersonView: View {
var person: Person
@Binding var selection: Set<Person.ID>
var onCommit: (String) -> Void = { newValue in }
@State private var isEditing = false
@State private var newValue = ""
@FocusState private var isInputActive: Bool
var body: some View {
if isEditing {
TextField("", text: $newValue, onCommit: {
onCommit(newValue)
isEditing = false
})
.focused($isInputActive)
.labelsHidden()
}
else {
Text(person.name)
.onTapGesture {
if selection.contains(person.id), selection.count == 1 {
newValue = person.name
isEditing = true
isInputActive = true
}
}
}
}
}
Right now, you need to tap on the row anywhere but on the text to select it. Then, if you tap on the text it'll go in edit mode.
Is there a way to let the list do its selection? I tried wrapping the tap gesture in simultaneousGesture but that didn't work.
Thanks!
Post not yet marked as solved
DNSServiceNATPortMappingCreate returns external port 0 since macOS 13 b3 build 23A5286i.
This was the case in macOS 12 as well (see FB9137313 and FB9139688).
Hopefully this won't take months after macOS is released before it is fixed like last time.
Latest radar: FB12579235
Also, see https://developer.apple.com/forums/thread/681836
Post not yet marked as solved
When I try to run my iPad app in the simulator, I get this error:
dyld[25133]: Symbol not found: _$s21DeveloperToolsSupport15PreviewRegistryPAAE04makeD0AA0D0VyKFZ
Referenced from: <40E6A0C8-6B05-3C87-8F68-D333EF2586EA> /Users/me/Library/Developer/CoreSimulator/Devices/DAE1996F-4A59-49CA-B55D-FE2AF0E6461F/data/Containers/Bundle/Application/B49E91FE-89D5-4496-831D-31B87A6F1170/My.app/My
Expected in: <31FB64EE-D651-3287-9607-1ED38855E80F> /Library/Developer/CoreSimulator/Volumes/xrOS_21N5165g/Library/Developer/CoreSimulator/Profiles/Runtimes/xrOS 1.0.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/DeveloperToolsSupport.framework/DeveloperToolsSupport
Message from debugger: killed
Is this a bug, my iPad app is not compatible or there's something I need to do?
Post not yet marked as solved
Somehow the Swift compiler is unable to this code:
@Observable class ServiceBrowser: NSObject {
typealias ResolveServiceCompletionBlock = (Bool, Error?) -> Void
fileprivate var resolveServiceCompletionHandler: ResolveServiceCompletionBlock? = nil
}
Here's the crash:
4 . While evaluating request ASTLoweringRequest(Lowering AST to SIL for file "/Users/luc/Work/Repositories/app-shared/App/Shared/Connectivity/ServiceBrowser.swift")
5 . While silgen init accessor SIL function "@$s7App14ServiceBrowserC07resolveB17CompletionHandler33_5B15C352D9CC926D1F8A0ECAC5970199LLySb_s5Error_pSgtcSgvi".
for init for resolveServiceCompletionHandler (at /Users/luc/Work/Repositories/ap-shared/App/Shared/Connectivity/ServiceBrowser.swift:86:21)
6 . While emitting reabstraction thunk in SIL function "@$sSbs5Error_pSgIegyg_ytIegd_TR".
Post not yet marked as solved
Is there no way to hide the pointer with SwiftUI? If so, how?
Post not yet marked as solved
I'm in the process of migrating to the Observation framework but it seems like it is not compatible with didSet. I cannot find information about if this is just not supported or a new approach needs to be implemented?
import Observation
@Observable class MySettings {
var windowSize: CGSize = .zero
var isInFullscreen = false
var scalingMode: ScalingMode = .scaled {
didSet {
...
}
}
...
}
This code triggers this error:
Instance member 'scalingMode' cannot be used on type 'MySettings'; did you mean to use a value of this type instead?
Anyone knows what needs to be done? Thanks!
Post not yet marked as solved
Is there a way to force a window to resize according to an aspect ratio? This is possible in AppKit via the NSWindow.contentAspectRatio property but I cannot find something similar for SwiftUI.
Basically, I want the window to maintain the aspect ratio of its contents.
Post not yet marked as solved
In my app, I'd like to be able to share a .csv file via ShareLink and Transferable. I watched the "Meet Transferable" WWDC22 video and it should be possible as the presenter demonstrated that use case.
However, when I try this on my end, I am able to share the content but somehow it is treated by iOS as plaintext and when sharing by email or messages, it will just add the text content to the body.
If I try to share via AirDrop, it creates a random filename with the .txt extension even though I specify .commaSeparatedText.
The only way this somewhat works is when saving to files. It will save as a .csv file but the filename is set to "comma-separated values".
Here's some code:
struct MyArchive {
enum ValidationError: Error {
case invalid
}
var filename: String {
return "myarchive.csv"
}
init(csvData: Data) throws {
//...
}
func convertToCSV() throws -> Data {
let test = "Name,Email\nPete,pete@example.com"
if let data = test.data(using: .utf8) {
return data
}
else {
throw ValidationError.invalid
}
}
}
extension MyArchive: Transferable {
static var transferRepresentation: some TransferRepresentation {
DataRepresentation(contentType: .commaSeparatedText) { archive in
try archive.convertToCSV()
} importing: { data in
try MyArchive(csvData: data)
}
}
}
And in my View:
struct View: View {
var body: some View {
//...
let csv = MyArchive()
ShareLink(
item: csv,
preview: SharePreview(
csv.filename,
image: Image(systemName: "doc.plaintext")
)
)
}
}
I'm at the point that I wonder if I'm doing something wrong or this just doesn't work in iOS 16 beta 1.
Any hints?
Thanks!
Post not yet marked as solved
I don't know if this is a bug but when you put text fiels in a form, pressing the Tab key on a physical keyboard will just jump to the first field and stay there:
import SwiftUI
struct ContentView: View {
enum FocusedField {
case firstName, lastName
}
@State var name = ""
@State var lastName = ""
@FocusState private var focusedField: FocusedField?
var body: some View {
Form {
TextField("Name", text: $name)
.focused($focusedField, equals: .firstName)
TextField("Last", text: $lastName)
.focused($focusedField, equals: .lastName)
}
.padding()
.onAppear {
focusedField = .firstName
}
}
}
This is the result:
Note that this works fine on macOS or when using the Tab key on the virtual keyboard.
If you put the fields into a VStack instead, you'll be able to move through the fields via the Tab key.
Lucky7.