swiftui

Hi,What discussion area is best suited for SwiftUI discussions?Thanks,Dan Uff

I have a class conforming to the @ObservableObject protocol and created a subclass from it with it's own variable with the @Published property wrapper to manage state.It seems that the @published property wrapper is ignored when using a subclass. Does anyone know if this is expected behaviour and if there is a workaround?I'm running iOS 13 Beta 8 and xCode Beta 6.Here is an example of what I'm seeing. When updating the TextField on ```MyTestObject``` the Text view is properly updated with the aString value. If I update the ```MyInheritedObject```TextField the anotherString value isn't updated in the Text view.import SwiftUI class MyTestObject: ObservableObject { @Published var aString: String = } class MyInheritedObject: MyTestObject { @Published var anotherString: String = } struct MyView: View { @ObservedObject var myTestObject = MyInheritedObject() @ObservedObject var myInheritedObject = MyInheritedObject() var body: some View { NavigationView { VStack(alignment: .leading) { TextField(Update aSt

I can't work out how to use SwiftUI in a notification content extension. It always appears black for me when the extension runs.Here's the code in my extension right now:class NotificationViewController: UIViewController, UNNotificationContentExtension { override func viewDidLoad() { super.viewDidLoad() let child = UIHostingController(rootView: TaskCell_Previews.previews) addChild(child) child.view.frame = view.frame view.addSubview(child.view) child.didMove(toParent: self) NSLayoutConstraint.activate([ child.view.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 1), child.view.heightAnchor.constraint(equalTo: view.heightAnchor, multiplier: 1), child.view.centerXAnchor.constraint(equalTo: view.centerXAnchor), child.view.centerYAnchor.constraint(equalTo: view.centerYAnchor) ]) } func didReceive(_ notification: UNNotification) { } }In this case, I'm just putting `TaskCell_Previews` in to try to get it working. Whenever I tap on the notification, it just shows a blank view (which has a 1-1 a

Hi,I'm relatively new to coding and am playing around with SwiftUI. Specifically I'm trying to follow Apple's tutorial (https://developer.apple.com/tutorials/swiftui/creating-and-combining-views) to get an understanding. I'm applying the tutorial to a tabbed view app, rather than a single view app. .edgesIgnoringSafeArea(.top) however, does not seem to be working. Is this a specific trait of a tabbed view app?My code looks as following:import SwiftUI struct ContentView: View { @State private var selection = 0 var body: some View { TabView(selection: $selection){ VStack { MapView() .edgesIgnoringSafeArea(.top) .frame(height: 350) CircleView() .offset(y:-130) .padding(.bottom, -130) Text(Hello World) .font(.title) Spacer() } .tabItem { VStack { Image(first) Text(First) } } .tag(0) Text(Second View) .font(.title) .tabItem { VStack { Image(second) Text(Second) } } .tag(1) Text(Third View) .font(.title) .tabItem { VStack { Image(first) Text(Third) } } .tag(2) Text(Fourth View) .font(.tit

Default TabView comes in light grey background color. the accentColor modifier works ok for changing the icon selected color, but I can not get the background color to change.Modifiers I've tried: .background(Color.white)This should work, but it doesn't. Could someone point me to the right direction?Thank you!

A bit of background first:I have a document based app that's a file viewer. Each file contains a bunch of tables. Each document window is a horizontal NSStackView. The left hand view shows a list of tables in the file and the right hand view is an NSTabView with two tabs. One to show the unformatted version of the table (i.e. a hex dump) and the other to show a formatted view. Currently the formatted view is a scrollable NSTableView with a single table cell.And my (probably stupid) questions:I want to use a different view for each table type, but I couldn't figure out a way to do that with AppKit. When I learned about SwiftUI, I though it would be easy to create a view that changed based on the table type, and I could put this view into an NSHostingView. I have two questions:1) I thought there'd be a way to create an NSHostingView in the storyboard, just like there is for an NSHostingViewController, but I don't see any way to to that. Have I missed somthing? Is this an as yet unimplemented feature, o

Since WWDC I've been anxious to take SwiftUI for a test flight. So after clearing out enough room on the SSD in my MBAir and installing Catalina (v10.15 Beta (19A536g)) over a virgin install of Mojave on a new APFS volume and creating a new user account (no migration) I installed Xcode Version 11.0 beta 6 (11M392q) and began the tutorials found here...https://developer.apple.com/tutorials/swiftui/creating-and-combining-viewsI completed the first Creating and Combining Views with not so much as a bump and could not help but be impressed by the streamlined SwiftUI workflow. Bouyed with optimism I launched into the second tutorial, found here...https://developer.apple.com/tutorials/swiftui/building-lists-and-navigationand that is where the balloon burst. I have spent hours trying to determine what it is in Apple's code that is making xcode bark with a seemingly randow error message almost every time I run the preview, which would be maddening enough but every once in a dogs ag

Anyone figured out how to use equivalent of setRootViewController in SwiftUI?I've managed to figure this out.sheet(isPresented: $userCred.showLoginView, content: { LoginView().environmentObject(self.userCred) })But for obvious reasons its not the best solution.

Hi,My requrement is to set background view as image to the List view in SwiftUI.Could any one help me achive it?Regards,Ranjeetstruct TableView_SwiftUI: View { var body: some View { List(1...5) { row in Text(Row Index (row)) }.background(Image(bg)) } }

Hi,I want to create diffrent cell with seperate color in a section. Reagards,Ranjeetstruct AlternateListCellView: View { var body: some View { List { Section(header: Text(Show alternate cell)) { ForEach(1...5) { row in Text(Row Index = (row)) } // row variable is out of scope, so its throw compile time error. Is any other way to create section and cell? // Kindly correct me if Any mistake. // .listRowBackground(row % 2 == 0 ? Color.orange : Color.yellow) } } .background(Color.purple) } }