Chatgpt

1. Create RegisterViewController.swift
   ปกด UI และตรรกะที่เกี่ยวข้องกับการลงทะเบียนผู้ใช้งานใหม่ เช่น การกรอกชื่อผู้ใช้, รหัสผ่าน, และการยืนยันข้อมูล

import UIKit

class RegisterViewController: UIViewController {
    
    // UI Elements
    let usernameField = UITextField()
    let passwordField = UITextField()
    let registerButton = UIButton(type: .system)
    
    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .white
        title = "Register"
        
        setupUI()
    }
    
    func setupUI() {
        // Configure Username Field
        usernameField.placeholder = "Enter username"
        usernameField.borderStyle = .roundedRect
        usernameField.translatesAutoresizingMaskIntoConstraints = false
        
        // Configure Password Field
        passwordField.placeholder = "Enter password"
        passwordField.borderStyle = .roundedRect
        passwordField.isSecureTextEntry = true
        passwordField.translatesAutoresizingMaskIntoConstraints = false
        
        // Configure Register Button
        registerButton.setTitle("Register", for: .normal)
        registerButton.addTarget(self, action: #selector(registerTapped), for: .touchUpInside)
        registerButton.translatesAutoresizingMaskIntoConstraints = false
        
        // Add Subviews
        view.addSubview(usernameField)
        view.addSubview(passwordField)
        view.addSubview(registerButton)
        
        // Layout Constraints
        NSLayoutConstraint.activate([
            usernameField.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            usernameField.topAnchor.constraint(equalTo: view.topAnchor, constant: 200),
            usernameField.widthAnchor.constraint(equalToConstant: 250),
            
            passwordField.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            passwordField.topAnchor.constraint(equalTo: usernameField.bottomAnchor, constant: 20),
            passwordField.widthAnchor.constraint(equalToConstant: 250),
            
            registerButton.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            registerButton.topAnchor.constraint(equalTo: passwordField.bottomAnchor, constant: 20),
            registerButton.widthAnchor.constraint(equalToConstant: 100)
        ])
    }
    
    @objc func registerTapped() {
        let username = usernameField.text ?? ""
        let password = passwordField.text ?? ""
        
        // Basic validation
        if username.isEmpty || password.isEmpty {
            showAlert(message: "Please enter both username and password.")
            return
        }
        
        // Save credentials to UserDefaults (for demo purposes)
        UserDefaults.standard.set(username, forKey: "username")
        UserDefaults.standard.set(password, forKey: "password")
        
        showAlert(message: "Registration Successful!")
    }
    
    func showAlert(message: String) {
        let alert = UIAlertController(title: "Alert", message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
        present(alert, animated: true, completion: nil)
    }
}

2. Create LoginViewController.swift

04 Login Register presentViewController

The easiest way to build a Login,

Create Modern App Button in 60 Seconds (Swift)

Swift Tutorial – Custom UIButton Class (Reusable)

How to use TextField in SwiftUI | Bootcamp #35

Numeric TextFields in SwiftUI

• Facebook
• X
• Line