5.16

import 'package:flutter/material.dart';
import 'package:test1/Do/UserDao.dart'; // Make sure this path is correct
import 'package:test1/page/logined.dart';
import 'register.dart'; // Import your RegisterPage class

class LoginPage extends StatelessWidget {
  LoginPage({required Key key}) : super(key: key);

  // Move TextEditingController declaration outside of build method
  final TextEditingController usernameController = TextEditingController();
  final TextEditingController passwordController = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('登录'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(20.0),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: <Widget>[
            TextFormField(
              controller: usernameController, // assign controller
              decoration: InputDecoration(
                labelText: '用户名',
              ),
            ),
            const SizedBox(height: 20.0),
            TextFormField(
              controller: passwordController, // assign controller
              decoration: const InputDecoration(
                labelText: '密码',
              ),
              obscureText: true,
            ),
            const SizedBox(height: 20.0),
            ElevatedButton(
              onPressed: () {
                String username = usernameController.text.trim();
                String password = passwordController.text.trim();

                // Remove extra condition check
                if (username.isNotEmpty && password.isNotEmpty) {
                  // 调用后端登录函数
                  login(context, username, password);

                  // Navigate to MyApp2 with username parameter
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (context) => MyApp2(username: username),
                    ),
                  );
                } else {
                  // 提示用户输入完整的信息
                  ScaffoldMessenger.of(context).showSnackBar(
                    const SnackBar(
                      content: Text('请输入完整的信息'),
                    ),
                  );
                }
              },
              child: const Text('登录'),
            ),
            const SizedBox(height: 10.0),
            TextButton(
              onPressed: () {
                // Navigate to the RegisterPage
                Navigator.push(
                  context,
                  MaterialPageRoute(builder: (context) => RegisterPage(key: UniqueKey())),
                );
              },
              child: const Text('注册'),
            ),
          ],
        ),
      ),
    );
  }
}