login_screen.dart b kel 1

import 'package:flutter/material.dart';

class LoginScreen extends StatefulWidget {
  const LoginScreen({Key? key}) : super(key: key);

  @override
  State<LoginScreen> createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {
  TextEditingController userNameController = TextEditingController();
  TextEditingController passwordController = TextEditingController();

  bool hidePass = true;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      body: Column(
        children: [
          SizedBox(
            height: 20,
          ),
          Text(
            'Login',
            style: TextStyle(fontWeight: FontWeight.bold, fontSize: 30),
          ),
          Expanded(
            child: Image.asset(
              'images/undraw_new_ideas_jdea.png',
              height: 1000,
            ),
          ),
          Padding(
            padding: const EdgeInsets.symmetric(horizontal: 50, vertical: 10),
            child: TextFormField(
              controller: userNameController,
              decoration: InputDecoration(
                labelText: 'Username',
                hintText: 'SIlakan masukkan username',
                border: OutlineInputBorder(
                  borderRadius: BorderRadius.circular(30),
                ),
              ),
            ),
          ),
          Padding(
            padding: const EdgeInsets.symmetric(horizontal: 50, vertical: 10),
            child: TextFormField(
              obscureText: hidePass,
              controller: passwordController,
              decoration: InputDecoration(
                suffixIcon: IconButton(
                  icon: Icon(hidePass? Icons.visibility :Icons.visibility_off ),
                  onPressed: (){
                    setState(() {
                      hidePass = !hidePass;
                    });
                  },
                ),
                labelText: 'Password',
                hintText: 'SIlakan masukkan password',
                border: OutlineInputBorder(
                  borderRadius: BorderRadius.circular(30),
                ),
              ),
            ),
          ),
          SizedBox(
            width: 300,
            height: 50,
            child: ElevatedButton(
                onPressed: () {
                  if (userNameController.text == "budi" &&
                      passwordController.text == "123") {
                    ScaffoldMessenger.of(context).showSnackBar(
                      SnackBar(
                        content: Text('Sukses login'),
                      ),
                    );
                  } else {
                    ScaffoldMessenger.of(context).showSnackBar(
                      SnackBar(
                        content: Text('User name atau password salah'),
                      ),
                    );
                  }
                },
                style: ElevatedButton.styleFrom(
                  shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(30),
                  ),
                ),
                child: Text('Sign In')),
          ),
          GestureDetector(
              onTap: (){
                ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(
                    content: Text('Halaman signup'),
                  ),
                );
              },
              child: Text('Tidak punya akun? Sign up')),
          SizedBox(
            height: 20,
          )
        ],
      ),
    );
  }
}