如何使用flutter和firebase为google帐号设置和确认密码

dependencies:
  flutter:
    sdk: flutter
  firebase_core: ^1.0.0
  firebase_auth: ^1.0.0

import 'package:firebase_core/firebase_core.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

import 'package:flutter/material.dart';
import 'package:firebase_auth/firebase_auth.dart';

class LoginPage extends StatelessWidget {
  final FirebaseAuth _auth = FirebaseAuth.instance;

  void _registerWithEmailAndPassword(String email, String password) async {
    try {
      UserCredential userCredential = await _auth.createUserWithEmailAndPassword(
        email: email,
        password: password,
      );
      // 注册成功后的处理逻辑
    } catch (e) {
      // 注册失败的处理逻辑
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Login'),
      ),
      body: Center(
        child: Column(
          children: [
            TextField(
              decoration: InputDecoration(
                labelText: 'Email',
              ),
            ),
            TextField(
              decoration: InputDecoration(
                labelText: 'Password',
              ),
              obscureText: true,
            ),
            ElevatedButton(
              onPressed: () {
                // 获取输入的邮箱和密码
                String email = getEmailFromTextField();
                String password = getPasswordFromTextField();
                _registerWithEmailAndPassword(email, password);
              },
              child: Text('Register'),
            ),
          ],
        ),
      ),
    );
  }
}