import 'package:flutter/material.dart'; /// /// 登录页 /// class Login extends StatefulWidget { final Function successCallback; const Login({ required Key key, required this.successCallback, }) : super(key: key); @override LoginState createState() => LoginState(); } class LoginState extends State { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text( '登录', style: TextStyle( fontSize: 30, ), ), centerTitle: true, ), body: const Text('登录'), ); } }