填充整个屏幕:

var body: some View {
    Color.green.edgesIgnoringSafeArea(.all)
}

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)
    }
}

这个解决方案有效吗?:

添加以下行到SceneDelegate: window.rootViewController?backgroundColor = .black

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        if let windowScene = scene as? UIWindowScene {

                window.rootViewController?.view.backgroundColor = .black
}

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:

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)

    }


}

首先，你应该使用

 ZStack {
      Color("Desired_color_name").ignoresSafeArea()
// if you create any color set then give that colour set name
// otherwise use Color.gray or as you want the colour name
    
     //Here you should start your design
    }