Property-Wrapper-AppData-1.swift

struct AppData {
    
    private static let enableAutoLoginKey = "enable_auto_login_key"
    private static let usernameKey = "username_key"
    
    static var enableAutoLogin: Bool {
        get {
            // Read from UserDefaults
            return UserDefaults.standard.bool(forKey:enableAutoLoginKey)
        }
        set {
            // Save to UserDefaults
            UserDefaults.standard.set(newValue, forKey: enableAutoLoginKey)
        }
    }
    
    static var username: String {
        get {
            // Read from UserDefaults
            return UserDefaults.standard.string(forKey: usernameKey) ?? ""
        }
        set {
            // Save to UserDefaults
            UserDefaults.standard.set(newValue, forKey: usernameKey)
        }
    }
}