📋 FormBuilder - Advanced SwiftUI Form Input Handler

FormBuilder is a customizable and lightweight SwiftUI utility that simplifies complex form input handling with support for:

• Custom validation logic
• Real-time and deferred validation
• Support for various input types (text, email, password, picker, date, phone)
• Country phone code picker with flags 🇹🇳
• Seamless integration in SwiftUI apps

🚀 Features

• ✅ Reusable form field view model
• 📦 Built-in validation for common types (email, password, etc.)
• 🌍 Country picker for phone input with flag emojis and dialing codes
• 🔒 Supports secure inputs and required field indicators
• 🧠 Tracks user interaction for intelligent validation feedback

🧱 Structure

• FormFieldViewModel: Handles the state, validation, and interaction logic per field.
• FormBuilderViewModel: Manages multiple fields, global validation state.
• AdvancedFormField: SwiftUI component that binds directly to a FormFieldViewModel.
• CountryPhonePickerView: UI for selecting country flags and codes.
• CountryPhoneCodes.json: A full list of countries, ISO codes, and dialing codes.

📦 Installation

Simply copy the FormBuilder directory into your SwiftUI project.

🛠 Usage

@StateObject var username = FormFieldViewModel()
username.inputType = .text
username.validation = { $0.isEmpty ? "Username required" : nil }

AdvancedFormField(viewModel: username, label: "Username", placeholder: "Your username")

For full example, see ContentView.swift.

🌐 Country Phone Code Example:

phoneField.inputType = .phone
phoneField.validation = { number in
    number.count < 8 ? "Too short" : nil
}