SwiftUI:如何在SwiftUI中实现单选按钮

@State private var selectedOption: Int = 0

var body: some View {
    VStack {
        Toggle(isOn: Binding<Bool>(
            get: { self.selectedOption == 0 },
            set: { self.selectedOption = $0 ? 0 : -1 }
        )) {
            Text("Option 1")
        }
        Toggle(isOn: Binding<Bool>(
            get: { self.selectedOption == 1 },
            set: { self.selectedOption = $0 ? 1 : -1 }
        )) {
            Text("Option 2")
        }
        Toggle(isOn: Binding<Bool>(
            get: { self.selectedOption == 2 },
            set: { self.selectedOption = $0 ? 2 : -1 }
        )) {
            Text("Option 3")
        }
    }
}

@State private var selectedOption: Int = 0
private let options = ["Option 1", "Option 2", "Option 3"]

var body: some View {
    Picker(selection: $selectedOption, label: Text("Options")) {
        ForEach(0..<options.count) { index in
            Text(self.options[index]).tag(index)
        }
    }
}