ios - SwiftUI 更新导航栏标题颜色

Question

如何在 SwiftUI 中更改导航栏标题颜色

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 [phone] ")
                            .font(.subheadline)
                            .fontWeight(.regular)
                            .multilineTextAlignment(.leading)
                            .lineLimit(nil)


                    }
                }
            }
            .navigationBarTitle(Text("TEST")).navigationBarHidden(false).foregroundColor(.orange)
            }

我试过了，.foregroundColor(.orange)但它不起作用

也试过 .navigationBarTitle(Text("TEST").color(.orange))

有什么帮助吗？

标签： iosnavigationbarswiftui

Answer 1

没有必要使用全局来执行此操作。.appearance()

尽管 SwiftUI 不直接公开导航样式，但您可以使用UIViewControllerRepresentable. 由于 SwiftUI 在后台使用常规UINavigationController，因此视图控制器仍然具有有效.navigationController属性。

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)
        }
    }

}

并使用它

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())
    }
}