swiftui

The ideal workflow to manage all presentation logic would be to use swift UI without relying on storyboards. As it stands, creating a macOS application using swift UI includes a storyboard file to manage application windows. While swift UI is a HUGE step in the right direction, It's definitely lacking when it comes to macOS specific support. a sample implementation is as shown below.import SwiftUI struct WindowView : Window { var title = My window var width = 200 var height = 300 var resizeable = false var toolbar: Toolbar {} var sidebar: Sidebar {} var body: some View {} }This would be a game changer making swift UI a much more powerful addition to the ecosystem and a complete solution for UI management.Any thoughts?

Hi I'm creating a custom Button with SwiftUI. I set the background color of the button as red.I would like that when my button is disabled (with the disabled() method), the button's background color changes to gray.What's the correct way to implement that? Is there a State property that tell that a View is disabled?Thanks for more clarifications or an example.

Is there a way to measure the computed size of a view after SwiftUI runs its view rendering phase? For example, given the following view:struct MyView : View { var body: some View { Text(Hello World!) .font(.title) .foregroundColor(.white) .padding() .background(Color.red) } }With the view selected, the computed size is displayed In the preview canvas in the bottom left corner. Does anyone know of a way to get access to that size in code?

I have the following code in a file:import SwiftUI struct ContentView : View { var body: some View { HSplitView{ Text(Placeholder) Text(Placeholder) } } } #if DEBUG struct ContentView_Previews : PreviewProvider { static var previews: some View { ContentView() } } #endifAnd I get Use of unresolved identifier 'HSplitView'. Same happens with VSplitView. Does anyone else have this issue? Is it a bug in the current version?

In the NavigationButton, what is the purpose of the isDetail parameter? If I change it to false the Landmarks app seems to look/act the same, and the documentation is muite on the subject.Speaking of documentaiton, when Swift was announced at WWDC 2014, it was released with a 400 page *book* on the subject ... does anyone know if there's going to be a SwiftUI equivalent?

I'm getting the following compiler error.error: function declares an opaque return type, but the return statements in its body do not have matching underlying types var body: some View { ^I'm trying to switch on some state to determine what the rest of the view hierachy looks like. How do I do this in SwiftUI? Thanks!enum Choices: Equatable, Hashable { case one case two } struct HeaderView: View { @State var choices = Choices.one var body: some View { switch choices { case .two: return ChoiceTwoView(choices: $choices) default: return ChoiceOneView(choices: $choices) } } } struct ChoiceOneView: View { @Binding var choices: Choices init(choices: Binding) { $choices = choices } var body: some View { VStack { HStack { Image(systemName: person.icloud) VStack(alignment: .leading) { Text(Person Name) .font(.headline) Text(Some long long long long long long long long text) .lineLimit(nil) .multilineTextAlignment(.leading) } } } } } struct ChoiceTwoView: View { @Binding var choices: Choices init(choices: Bind

Want to adapt text font when using SwiftUI so that it can fit when displaying dynamic text data of various length in a navigation bar title. can't seem to find the modifier. Code is .navigationBarTitle(Text(mydata[0]) sadly this modifier does not work : .lineLimit(2) any suggestion?

So far it seems that in order to use NSCollectionView or NSTableView with SwiftUI, you have to wrap it all up yourself and the experience is not fluid at all.Am I missing something obvious? Did anyone do this already? If so, any tips, sample code?Thanks,Dmitry

How do I rotate the SwiftUI Preview to show my view in landscape?

I created a simple test project in Xcode 11 (on Catalina) and was able to see the previews for the SwiftUI views and their settings etc.I then opened an small established project I have and did all the updates that Xcode 11 suggested to bring it up to spec. Then I added a SwiftUI view using the SwiftUI template. Everything compiles fine, but when I attempt to see the preview of the SwiftUI view I get this error:messageRepliedWithError(Connecting to launched interactive agent 1590, Optional(Error Domain=com.apple.dt.ultraviolet.service Code=17 connectToPreviewHost: Failed to connect to 1590: Error Domain=com.apple.dt.ProcessAttachUtilities Code=3 Target process 1590 exited prematurely, likely crashed UserInfo={NSLocalizedDescription=Target process 1590 exited prematurely, likely crashed} UserInfo={NSLocalizedDescription=connectToPreviewHost: Failed to connect to 1590: Error Domain=com.apple.dt.ProcessAttachUtilities Code=3 Target process 1590 exited prematurely, likely crash

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 master-detail views:import SwiftUI struct ListView : View { var body: some View { NavigationView { List() { NavigationButton(destination: Text(detail 1)) { Text(row 1) } NavigationButton(destination: Text(detail 2)) { Text(row 2) } } } } } #if DEBUG struct ListView_Previews : PreviewProvider { static var previews: some View { ListView() } } #endifIt works as expected on iOS 👍But on the macOS project the same code as above doesn't work the same way When I launch the app on Mac, I get this windowAnd when I click on any row, the detail view just collapses/disappears, never showing me detail view.Any ideas how to fix this? Maybe I'm missing something? Or perhaps this is just a bug?