All Questions
1,735
questions
90
votes
7
answers
55k
views
How can I change a SwiftUI Color to UIColor?
I'm trying to change a SwiftUI Color to an instance of UIColor.
I can easily get the RGBA from the UIColor, but I don't know how to get the "Color" instance to return the corresponding RGB ...
- 1,521
45
votes
4
answers
39k
views
Define macOS window size using SwiftUI
I'm using SwiftUI to develop a new macOS application and can't figure out how to define the window size. In the AppDelegate, the window size is defined as shown below:
// --- AppDelegate.swift ---
...
- 8,976
38
votes
3
answers
16k
views
How to create Status Bar icon and menu in macOS using SwiftUI
What is SwiftUI API for creating status bar menus?
Apple seems to use SwiftUI views in Battery & WiFi menus according to the accessibility inspector. Screenshot of a battery menu attached, also ...
- 1,317
37
votes
5
answers
7k
views
SwiftUI – Multi column TableView in macOS
I have been experimenting a bit with SwiftUI and can’t seem to find any information at all about how to use SwiftUI to create a multi column TableView as in NSTableView. All the examples I have ...
- 892
32
votes
6
answers
6k
views
How to programatically open Settings/Preferences window in a macOS SwiftUI App
I have created a simple macOS-only SwiftUI app and added a Settings screen as per Apple's instructions:
import SwiftUI
@main
struct MyApp: App {
var body: some Scene {
WindowGroup {
...
- 1,603
32
votes
4
answers
35k
views
Displaying an empty view in SwiftUI
In SwiftUI there's frequently a need to display an "empty" view based on some condition, e.g.:
struct OptionalText: View {
let text: String?
var body: some View {
guard let text = text else {...
- 5,426
32
votes
7
answers
37k
views
How to access own window within SwiftUI view?
The goal is to have easy access to hosting window at any level of SwiftUI view hierarchy. The purpose might be different - close the window, resign first responder, replace root view or ...
- 250k
30
votes
5
answers
30k
views
SwiftUI - How to add foreground linear gradient on image
I am unable to find any related documentation on how to do a linear gradient on the foreground for an image I have with SwiftUI.
I have tried to do it like so:
Image("IconLoseWeight")
.frame(width:...
- 1,849
30
votes
7
answers
13k
views
How do I debug SwiftUI AttributeGraph cycle warnings?
I'm getting a lot of AttributeGraph cycle warnings in my app that uses SwiftUI. Is there any way to debug what's causing it?
This is what shows up in the console:
=== AttributeGraph: cycle detected ...
- 63.2k
30
votes
6
answers
37k
views
How can I make a simple circular button in SwiftUI in macOS?
Seems like it should be simple.
Button(action: {
}){
ZStack {
Circle()
.frame(width: 100, height: 100)
.foregroundColor(.blue)
Text("Press me")
...
- 567
29
votes
5
answers
12k
views
macOS SwiftUI Navigation for a Single View
I'm attempting to create a settings view for my macOS SwiftUI status bar app. My implementation so far has been using a NavigationView, and NavigationLink, but this solution produces a half view as ...
- 393
29
votes
2
answers
6k
views
SwiftUI macOS fetch json error [logging] volume does not support data protection, stripping SQLITE_OPEN_FILEPROTECTION_* flags\
I tired to build an macOS application (Xcode 12, SwifUI) for my IOS app.
To fetch json data from my website I need a fetch request (no API key). I found several samples on medium, hackingwithswift etc....
- 1,062
28
votes
2
answers
16k
views
How to open a FileDialog?
In a SwiftUI app on macOS I want to allow a user to select a file from the macOS filesystem.
I tried to use AppKit's NSOpenPanel.
I tried like this, but I'm unable to create the ...
- 4,230
28
votes
7
answers
11k
views
How to open another window in SwiftUI, macOS?
I'd like to show a second window with different content in a SwiftUI app on macOS. I can't find any documentation on this. The attempt below doesn't work. Does anyone know how to do it?
class AppState:...
- 15.9k
27
votes
7
answers
14k
views
Issue with Buttons in SwiftUI on MacOS
I'm using SwiftUI on MACOS
If I do this:
Button(action: { } ) {
Text("Press")
.padding()
.background(Color.blue)
}
I get this:
and the two grey areas are the ...
- 2,217
27
votes
5
answers
21k
views
How do I add a toolbar to a macOS app using SwiftUI?
I am trying to add a toolbar inside the title bar to a macOS app using SwiftUI, something similar to what is shown below.
I am unable to figure out a way to achieve this using SwiftUI. Currently, I ...
- 5,496
26
votes
2
answers
3k
views
SwiftUI macOS right sidebar inspector
I have a document-based SwiftUI app. I'd like to make a inspector sidebar like the one in Xcode.
Starting with Xcode's Document App template, I tried the following:
struct ContentView: View {
@...
- 6,193
25
votes
4
answers
39k
views
In SwiftUI, How do I increase the height of a button?
As you can see in the screenshot, the button height does not adjust to fit the text size, making it look ugly. How can I increase the hight of the buttons, so it does not look stupid. My question is, ...
user12353468
25
votes
0
answers
2k
views
SwiftUI and Catalyst: [API] cannot add handler to 3 from 3 - dropping
After converting my SwiftUI project to Catalyst I get this strange error message on the console:
[API] cannot add handler to 3 from 3 - dropping
This happens when a view is scrolled, even in release ...
- 1,356
24
votes
4
answers
9k
views
SwiftUI on macOS: How to enable UI for onDelete (deletion from List)
Perhaps I'm particularly dense this morning but I'm trying to delete a row from a List in SwiftUI on macOS.
The issue is that there is no UI exposed to perform the delete. By that I mean that the ...
- 7,392
23
votes
7
answers
12k
views
Is there a way to use SF Symbols in macOS SwiftUI development?
SF Symbols provides a set of over 2,400 consistent, highly configurable symbols you can use in your app. Apple designed SF Symbols to integrate seamlessly with the San Francisco system font, so the ...
- 799
23
votes
7
answers
28k
views
Cannot find TestView in scope
I am seeing the following error in iOS14, I am not sure if it is a bug or a user error :-)
I appreciate it is still in beta, so I will post this in the developer forums as well.
I am seeing the ...
- 6,734
22
votes
4
answers
7k
views
SwiftUI on Mac - How do I designate a button as being the primary?
In AppKit I would do this by assigning its key equivalent to be ↩ or making its cell the window's default. However, neither of these seems possible in SwiftUI, so how do I make a button the default ...
- 31.7k
22
votes
3
answers
11k
views
Scroll SwiftUI List to new selection
If you have a SwiftUI List with that allows single selection, you can change the selection by clicking the list (presumably this makes it the key responder) and then using the arrow keys. If that ...
- 2,030
20
votes
5
answers
6k
views
Is there a way not to show a window for a SwiftUI-lifecycle macOS app?
I'm looking to not show a window for a SwiftUI application on macOS. The app uses SwiftUI's application lifecycle and only runs in the status bar. Showing a window on start up is unnecessary. I'm ...
- 2,252
20
votes
2
answers
15k
views
Why can't one iterate through enum data within a SwiftUI view?
Say I have some enum, Channel, filled with sample property data:
enum Channel: CaseIterable {
case abc
case efg
case hij
var name: String {
switch self {
case .abc: return "...
- 5,478
20
votes
1
answer
5k
views
Why does URL Scheme/onOpenURL in SwiftUI always open a new window?
I'm converting an old macOS app to SwiftUI, and I've run into a problem with the new SwiftUI WindowGroup.
The old app is a single window application (basically a glorified timer) and an URL scheme (...
- 515
20
votes
1
answer
3k
views
SwiftUI Nested Scrollviews problem on macOS
(If any Apple folks see this - I filed a feedback: FB8910881)
I am trying to build a an SwiftUI app with a layout similar to the Apple Music app - Artist Page or like in the SwiftUI tutorial from ...
- 360
20
votes
4
answers
4k
views
List or OutlineGroup expanded by default in SwiftUI
With List or OutlineGroup in SwiftUI how to make some (or all) of their branches expanded by default when creating the view. This seems to be possible with DisclosureGroup with a binding.
This could ...
- 1,322
19
votes
2
answers
7k
views
SwiftUI: Remove 'Focus Ring' Highlight Border from macOS TextField
I used the below code to create a custom search bar in SwiftUI. It works great on iOS / Catalyst:
...but when running natively on macOS, the 'focus ring' highlighted border styling (when the user ...
- 3,691
18
votes
2
answers
5k
views
Struct 'State' cannot be used as an attribute
I have the following code in a ContentView.swift file:
struct ContentView: View {
@State private var selectedSpeed: Int = 1
var body: some View {
Text("Hello World")
...
- 2,064
18
votes
9
answers
4k
views
SwiftUI: The Structured Editing Popover (Command + Click) does not show up
In SwiftUI tutorial (link) it says to:
Command-click the text view’s initializer to show the structured editing popover, and then choose Embed in VStack
However, it does not work for me.
What is ...
- 1,307
18
votes
5
answers
7k
views
Rotate a Text view and its frame in SwiftUI
I can rotate the Text in SwiftUI using rotationEffect but it doesn't rotate the frame. As shown in the image, the text is rotated but the frame is still horizontal. I would like to rotate the frame ...
- 8,976
17
votes
4
answers
16k
views
SwiftUI Drag and Drop files
I am trying to add a "Drag and Drop" gesture / function to my SwiftUI Mac application.
I want to drop files from my System/ Desktop into my Application. It is possbile in regular Swift, which I ...
- 8,301
17
votes
1
answer
7k
views
SwiftUI: Get the Dynamic Background Color (Dark Mode or Light Mode)
Is there a way to systematically access the standard, dynamic background color for SwiftUI views, regardless of whether the user be in Light or Dark Mode?
For example, I know the following can be ...
- 3,691
17
votes
4
answers
4k
views
NSWindow contentView not cover full window size - macOS & SwiftUI
I'm starting a new macOS app with SwiftUI but I have a big problem.
The app needs a full size contentView (underneath titleBar) but I can't accomplish. On a new project using Storyboards works fine, ...
- 1,658
16
votes
5
answers
5k
views
How do I disable the Show Tab Bar menu option in SwiftUI
I have created a very simple app on MacOS created with SwiftUI. Default there is a menu item show tab bar. How do I remove this? I doesn't make sense to have tabs in this app.
I've found the following ...
- 2,239
16
votes
2
answers
15k
views
Can you use a Publisher directly as an @ObjectBinding property in SwiftUI?
In SwiftUI, can you use an instance of a Publisher directly as an @ObjectBinding property or do you have to wrap it in a class that implements BindableObject?
let subject = PassthroughSubject<...
- 5,630
16
votes
2
answers
11k
views
How do I set a minimum size for a window and make it use the specified size and position when launching?
I am making a MacOS app with the default SwiftUI Application template. How can I set the minimum size of the window to (800, 500)? Also if I close the window, and reopen, it reopens as the size and ...
user12498286
16
votes
5
answers
7k
views
SwiftUI 2: the way to open view in new window
Lets imagine that I have an App
var storeVM = BookStoreViewModel(bla1: bla1, bla2: bla2, bla3: bla3)
@SceneBuilder var body: some Scene {
WindowGroup {
BookStoreView( model: storeVM )
...
- 10.5k
16
votes
1
answer
7k
views
Understanding Scene/WindowGroup in SwiftUI 2?
There is several objects in SwiftUI 2 like Scene and WindowGroup as some sort of Scene.
After reading documentation and looking WWDC2020 video related to scenes I see hierarchy by the following way :
...
- 10.5k
16
votes
1
answer
3k
views
Setting the cursor position within a SwiftUI TextEditor
Is there any way to programmatically move the cursor to a specific text line or select it within a SwifUI TextEditor?
For example, if there is a TextEditor with 10 lines written in it.
When the user ...
- 196
16
votes
2
answers
2k
views
How to make SwiftUI's Picker borderless/transparent on macOS?
I want to set a picker button borderless and transparent in SwiftUI on macOS.
I tried using .background(), .border() and .opacity() modifiers on the Picker view. However, I can't change the ...
15
votes
3
answers
9k
views
Setting a main window title for macOS SwiftUI app in AppKit?
I have a simplistic WKWebView app that opens up a website on macOS, using SwiftUI in AppKit.
However, the app window has no title - I'm talking of the top row (with the red X to close it, etc.
How do ...
- 946
15
votes
3
answers
12k
views
SwiftUI - If inside ForEach loop
I am building a List based on my elements in an array I fetched before.
I am fetching all the entities.. when the user makes a search in the search bar, I want to filter my List. I am NOT doing a new ...
- 1,568
15
votes
3
answers
4k
views
'Failed to finalize LSBundleWrapper' on SwiftUI app build for release
I have a new app which I'm building to be cross platform using SwiftUI
When I build for release I get a very odd error in a popup generated by Xcode.
Unable To Install ‚Äúnomadgo.ProductivityDashboard‚...
- 5,506
15
votes
3
answers
7k
views
How to access NSWindow from @main App using only SwiftUI?
At this answer the solution work for Scene plus swiftUI.
However using @main like:
@main
struct MyApp: App {
@StateObject private var model = MyModel()
var body: some Scene {
...
- 2,333
15
votes
5
answers
10k
views
Close Window and open another one
I'm new to SwiftUI and it's so much to overthink after using storboards for years. I try to convert my previous storyboard application and unfortunately, there are only tutorials for iOS. Nevermind, ...
- 4,039
15
votes
3
answers
13k
views
SwiftUI: how to use NavigationView in macOS?
I have two separate Xcode projects that I'm using to learn SwiftUI:
A true macOS project (not Catalyst) on Mac.
An iOS project (iPhone).
The following code creates a simple NavigationView with ...
- 4,190
15
votes
2
answers
4k
views
UIDocumentPickerViewController in SwiftUI on mac (macCatalyst)
So I've been meddling with "moving" a small SwiftUI iPad app to the Mac, and I've hit a bit of a speed bump with UIDocumentPickerViewController.
I have wrapped the UIDocumentPickerViewController in a ...
- 339