SwiftUI update navigation bar title color

It is not necessary to use .appearance() to do this globally.

Although SwiftUI does not expose navigation styling directly, you can work around that by using UIViewControllerRepresentable. Since SwiftUI is using a regular UINavigationController behind the scenes, the view controller will still have a valid .navigationController property.

struct NavigationConfigurator: UIViewControllerRepresentable {
    var configure: (UINavigationController) -> Void = { _ in }

    func makeUIViewController(context: UIViewControllerRepresentableContext<NavigationConfigurator>) -> UIViewController {
        UIViewController()
    }
    func updateUIViewController(_ uiViewController: UIViewController, context: UIViewControllerRepresentableContext<NavigationConfigurator>) {
        if let nc = uiViewController.navigationController {
            self.configure(nc)
        }
    }

}

And to use it

struct ContentView: View {
    var body: some View {
        NavigationView {
            ScrollView {
                Text("Don't use .appearance()!")
            }
            .navigationBarTitle("Try it!", displayMode: .inline)
            .background(NavigationConfigurator { nc in
                nc.navigationBar.barTintColor = .blue
                nc.navigationBar.titleTextAttributes = [.foregroundColor : UIColor.white]
            })
        }
    .navigationViewStyle(StackNavigationViewStyle())
    }
}

In SwiftUI, you can not change the navigationTitleColor directly. You have to change UINavigation's appearance in init() like this,

struct YourView: View {

    init() {
        //Use this if NavigationBarTitle is with Large Font
        UINavigationBar.appearance().largeTitleTextAttributes = [.foregroundColor: UIColor.red]

        //Use this if NavigationBarTitle is with displayMode = .inline
        UINavigationBar.appearance().titleTextAttributes = [.foregroundColor: UIColor.red]
    }

    var body: some View {

        NavigationView {
            List{
                ForEach(0..<15) { item in
                    HStack {
                        Text("Apple")
                            .font(.headline)
                            .fontWeight(.medium)
                            .color(.orange)
                            .lineLimit(1)
                            .multilineTextAlignment(.center)
                            .padding(.leading)
                            .frame(width: 125, height: nil)


                        Text("Apple Infinite Loop. Address: One Infinite Loop Cupertino, CA 95014 (408) 606-5775 ")
                            .font(.subheadline)
                            .fontWeight(.regular)
                            .multilineTextAlignment(.leading)
                            .lineLimit(nil)
                    }
                }
            }
            .navigationBarTitle(Text("TEST")).navigationBarHidden(false)
            //.navigationBarTitle (Text("TEST"), displayMode: .inline)
        }
    }
}

I hope it will work. Thanks!!