How do I persist user preferences in Combine with Swift?

Persisting user preferences in a Swift application using Combine can enhance the user experience by storing and retrieving settings efficiently. This method allows for a reactive programming approach, updating preferences instantly in response to user actions.

User Preferences, Combine, Swift, Reactive Programming, Data Persistence

This guide demonstrates how to use Combine to save and retrieve user preferences in a Swift application, ensuring that developer intent translates into user-friendly features.


        import Combine
        import SwiftUI

        class UserPreferences: ObservableObject {
            @Published var username: String {
                didSet {
                    UserDefaults.standard.set(username, forKey: "username")
                }
            }

            init() {
                self.username = UserDefaults.standard.string(forKey: "username") ?? ""
            }
        }

        struct ContentView: View {
            @ObservedObject var preferences = UserPreferences()

            var body: some View {
                VStack {
                    TextField("Enter your username", text: $preferences.username)
                        .padding()
                        .textFieldStyle(RoundedBorderTextFieldStyle())
                }
                .padding()
            }
        }

How do I persist user preferences in Combine with Swift?

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How do I persist user preferences in Combine with Swift?

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