swiftui_struct.swift

import SwiftUI

struct GameSettings {
    var isHard: Bool = false
}

struct NextView: View {
    @Binding var settings: GameSettings

    var body: some View {
        Toggle(isOn: $settings.isHard) {
            if self.settings.isHard {
                Text("Hard")
            } else {
                Text("Easy")
            }
        }
    }
}

struct ContentView: View {
    @State var settings: GameSettings = GameSettings()
    var body: some View {
        NavigationView {
            List {
                NavigationLink(destination: NextView(settings: $settings)) {
                    Text("\(settings.isHard ? "Hard" : "Easy")")
                }
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}