How do I use UserDefaults with SwiftUI?

Question

struct ContentView: View {
@State var settingsConfiguration: Settings
    struct Settings {
        var passwordLength: Dou         


        

Answer 1

The code below adapts Mohammad Azam's excellent solution in this video:

import SwiftUI

struct ContentView: View {
    @ObservedObject var userDefaultsManager = UserDefaultsManager()

    var body: some View {
        VStack {
            Toggle(isOn: self.$userDefaultsManager.firstToggle) {
                Text("First Toggle")
            }

            Toggle(isOn: self.$userDefaultsManager.secondToggle) {
                Text("Second Toggle")
            }
        }
    }
}

class UserDefaultsManager: ObservableObject {
    @Published var firstToggle: Bool = UserDefaults.standard.bool(forKey: "firstToggle") {
        didSet { UserDefaults.standard.set(self.firstToggle, forKey: "firstToggle") }
    }

    @Published var secondToggle: Bool = UserDefaults.standard.bool(forKey: "secondToggle") {
        didSet { UserDefaults.standard.set(self.secondToggle, forKey: "secondToggle") }
    }
}