refactor: 将前端从 uni-app x 重构为 Flutter
变更内容: - 删除 uni-app x 项目 (app/ 目录) - 新增 Flutter 项目 (flutter_monisuo/ 目录) - 新增部署脚本 (deploy/ 目录) Flutter 项目功能: - 用户登录/注册 - 首页资产概览 - 行情币种列表 - 交易买卖操作 - 资产账户管理 - 充值/提现/划转 - 深色主题 - JWT Token 认证 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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sion
173
flutter_monisuo/lib/ui/pages/auth/login_page.dart
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173
flutter_monisuo/lib/ui/pages/auth/login_page.dart
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../../../core/constants/app_colors.dart';
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import '../../../providers/auth_provider.dart';
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import '../main/main_page.dart';
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import 'register_page.dart';
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/// 登录页面
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class LoginPage extends StatefulWidget {
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const LoginPage({super.key});
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@override
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State<LoginPage> createState() => _LoginPageState();
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}
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class _LoginPageState extends State<LoginPage> {
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final _usernameController = TextEditingController();
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final _passwordController = TextEditingController();
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final _formKey = GlobalKey<FormState>();
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bool _obscurePassword = true;
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@override
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void dispose() {
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_usernameController.dispose();
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_passwordController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: AppColors.background,
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body: SafeArea(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(24),
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child: Form(
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key: _formKey,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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const SizedBox(height: 60),
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// Logo
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const Center(
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child: Text(
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'模拟所',
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style: TextStyle(
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fontSize: 32,
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fontWeight: FontWeight.bold,
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color: AppColors.primary,
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),
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),
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),
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const SizedBox(height: 8),
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const Center(
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child: Text(
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'虚拟货币模拟交易平台',
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style: TextStyle(
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fontSize: 14,
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color: AppColors.textSecondary,
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),
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),
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),
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const SizedBox(height: 48),
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// 用户名输入
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TextFormField(
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controller: _usernameController,
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style: const TextStyle(color: AppColors.textPrimary),
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decoration: InputDecoration(
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hintText: '请输入用户名',
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prefixIcon: const Icon(Icons.person_outline, color: AppColors.textSecondary),
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),
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validator: (value) {
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if (value == null || value.isEmpty) {
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return '请输入用户名';
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}
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return null;
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},
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),
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const SizedBox(height: 16),
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// 密码输入
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TextFormField(
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controller: _passwordController,
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obscureText: _obscurePassword,
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style: const TextStyle(color: AppColors.textPrimary),
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decoration: InputDecoration(
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hintText: '请输入密码',
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prefixIcon: const Icon(Icons.lock_outline, color: AppColors.textSecondary),
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suffixIcon: IconButton(
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icon: Icon(
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_obscurePassword ? Icons.visibility_off : Icons.visibility,
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color: AppColors.textSecondary,
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),
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onPressed: () {
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setState(() {
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_obscurePassword = !_obscurePassword;
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});
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},
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),
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),
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validator: (value) {
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if (value == null || value.isEmpty) {
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return '请输入密码';
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}
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return null;
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},
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),
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const SizedBox(height: 32),
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// 登录按钮
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Consumer<AuthProvider>(
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builder: (context, auth, _) {
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return ElevatedButton(
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onPressed: auth.isLoading ? null : _handleLogin,
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child: auth.isLoading
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? const SizedBox(
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height: 20,
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width: 20,
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child: CircularProgressIndicator(
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strokeWidth: 2,
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color: Colors.white,
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),
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)
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: const Text('登录'),
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);
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},
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),
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const SizedBox(height: 16),
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// 注册链接
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Center(
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child: TextButton(
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onPressed: () {
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Navigator.push(
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context,
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MaterialPageRoute(builder: (_) => const RegisterPage()),
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);
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},
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child: const Text(
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'还没有账号？立即注册',
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style: TextStyle(fontSize: 14),
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),
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),
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),
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],
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),
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),
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),
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),
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);
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}
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Future<void> _handleLogin() async {
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if (!_formKey.currentState!.validate()) return;
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final auth = context.read<AuthProvider>();
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final response = await auth.login(
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_usernameController.text.trim(),
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_passwordController.text,
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);
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if (response.success && mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('登录成功')),
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);
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(builder: (_) => const MainPage()),
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);
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} else if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text(response.message ?? '登录失败')),
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);
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}
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}
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}
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