像这样

struct ContentView : View {
    @State var fullName: String = "yushuyi"
    var body: some View {        
        VStack
            {
                TextField($fullName).background(SwiftUI.Color.red)
                Spacer()
        }.background(SwiftUI.Color.yellow.edgesIgnoringSafeArea(.all))
    }
}

你可以简单地改变一个视图的背景颜色:

var body : some View{


    VStack{

        Color.blue.edgesIgnoringSafeArea(.all)

    }


}

你也可以使用ZStack:

var body : some View{


    ZStack{

        Color.blue.edgesIgnoringSafeArea(.all)

    }


}

像这样

struct ContentView : View {
    @State var fullName: String = "yushuyi"
    var body: some View {        
        VStack
            {
                TextField($fullName).background(SwiftUI.Color.red)
                Spacer()
        }.background(SwiftUI.Color.yellow.edgesIgnoringSafeArea(.all))
    }
}

NavigationView例子:

var body: some View {
    var body: some View {
        NavigationView {
            ZStack {
                // Background
                Color.blue.edgesIgnoringSafeArea(.all)

                content
            }
            //.navigationTitle(Constants.navigationTitle)
            //.navigationBarItems(leading: cancelButton, trailing: doneButton)
            //.navigationViewStyle(StackNavigationViewStyle())
        }
    }
}

var content: some View {
    // your content here; List, VStack etc - whatever you want
    VStack {
       Text("Hello World")
    }
}

解决方案:

你可以创建一个彩色视图，并将其设置为VStack背景。

struct ColoredView: UIViewRepresentable {
    var color: Color
    func makeUIView(context: Context) -> UIView {
        let view = UIView()
        view.backgroundColor = UIColor(color)
        DispatchQueue.main.async {
            view.superview?.superview?.backgroundColor = .clear
        }
        return view
    }
    func updateUIView(_ uiView: UIView, context: Context) {}
}

用法:

 VStack {
    Text("VStack with Red backgound")
    Text("VStack with Red backgound")
    Text("VStack with Red backgound")
    Text("VStack with Red backgound")
 }.background(ColoredView(color: .red))

结果:

Xcode 11.5

简单地使用ZStack添加背景颜色或图像到你的SwiftUI的主视图

struct ContentView: View {
    var body: some View {
        ZStack {
            Color.black
        }
        .edgesIgnoringSafeArea(.vertical)
    }
}