384 lines
13 KiB
Dart
384 lines
13 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../../core/theme/app_colors.dart';
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import '../../../core/theme/app_text_styles.dart';
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import '../../../core/theme/app_dimensions.dart';
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import '../../../core/routes/app_routes.dart';
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import '../../../core/widgets/custom_button.dart';
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import '../../../core/widgets/custom_text_field.dart';
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import '../providers/auth_provider.dart';
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import '../../../shared/widgets/custom_app_bar.dart';
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/// 登录页面
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class LoginScreen extends ConsumerStatefulWidget {
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const LoginScreen({super.key});
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@override
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ConsumerState<LoginScreen> createState() => _LoginScreenState();
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}
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class _LoginScreenState extends ConsumerState<LoginScreen> {
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final _formKey = GlobalKey<FormState>();
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final _emailController = TextEditingController();
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final _passwordController = TextEditingController();
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bool _obscurePassword = true;
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bool _rememberMe = false;
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@override
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void dispose() {
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_emailController.dispose();
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_passwordController.dispose();
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super.dispose();
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}
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Future<void> _handleLogin() async {
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if (!_formKey.currentState!.validate()) {
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return;
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}
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try {
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await ref.read(authProvider.notifier).login(
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account: _emailController.text.trim(), // 可以是邮箱或用户名
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password: _passwordController.text,
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rememberMe: _rememberMe,
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);
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if (mounted) {
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Navigator.of(context).pushReplacementNamed(Routes.home);
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}
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} catch (e) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('登录失败: ${e.toString()}'),
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backgroundColor: AppColors.error,
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),
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);
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}
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}
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}
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void _navigateToRegister() {
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Navigator.of(context).pushNamed(Routes.register);
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}
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void _navigateToForgotPassword() {
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Navigator.of(context).pushNamed(Routes.forgotPassword);
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}
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void _fillTestUser() {
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setState(() {
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_emailController.text = 'test@example.com';
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_passwordController.text = 'Test@123';
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_rememberMe = true;
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});
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: const Text('已填充测试用户信息 (test@example.com / Test@123)'),
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backgroundColor: AppColors.primary,
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duration: const Duration(seconds: 2),
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),
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);
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}
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@override
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Widget build(BuildContext context) {
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final authState = ref.watch(authProvider);
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final isLoading = authState.isLoading;
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return Scaffold(
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appBar: CustomAppBar(
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title: '登录',
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onBackPressed: () {
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Navigator.of(context).pushReplacementNamed(Routes.splash);
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},
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),
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backgroundColor: AppColors.surface,
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body: SafeArea(
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child: SingleChildScrollView(
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padding: EdgeInsets.all(AppDimensions.pagePadding),
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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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SizedBox(height: AppDimensions.spacingXxl),
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// Logo和标题
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Column(
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children: [
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Container(
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width: 120,
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height: 120,
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decoration: BoxDecoration(
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color: AppColors.primary,
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borderRadius: BorderRadius.circular(60),
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),
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child: Icon(
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Icons.school,
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size: 60,
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color: AppColors.onPrimary,
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),
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),
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SizedBox(height: AppDimensions.spacingLg),
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Text(
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'AI英语学习',
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style: AppTextStyles.headlineLarge.copyWith(
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color: AppColors.primary,
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fontWeight: FontWeight.bold,
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),
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),
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SizedBox(height: AppDimensions.spacingSm),
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Text(
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'智能化英语学习平台',
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style: AppTextStyles.bodyLarge.copyWith(
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color: AppColors.onSurface.withOpacity(0.7),
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),
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),
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],
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),
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SizedBox(height: AppDimensions.spacingXxl),
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// 登录表单
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Text(
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'登录',
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style: AppTextStyles.headlineMedium.copyWith(
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color: AppColors.onSurface,
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fontWeight: FontWeight.bold,
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),
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),
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SizedBox(height: AppDimensions.spacingLg),
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// 邮箱输入框
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CustomTextField(
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controller: _emailController,
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labelText: '邮箱',
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hintText: '请输入邮箱地址',
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keyboardType: TextInputType.emailAddress,
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prefixIcon: Icons.email_outlined,
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validator: (value) {
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if (value == null || value.isEmpty) {
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return '请输入邮箱地址';
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}
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if (!RegExp(r'^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$').hasMatch(value)) {
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return '请输入有效的邮箱地址';
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}
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return null;
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},
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),
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SizedBox(height: AppDimensions.spacingMd),
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// 密码输入框
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CustomTextField(
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controller: _passwordController,
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labelText: '密码',
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hintText: '请输入密码',
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obscureText: _obscurePassword,
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prefixIcon: Icons.lock_outlined,
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suffixIcon: IconButton(
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icon: Icon(
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_obscurePassword ? Icons.visibility_outlined : Icons.visibility_off_outlined,
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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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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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if (value.length < 6) {
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return '密码长度不能少于6位';
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}
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return null;
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},
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),
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SizedBox(height: AppDimensions.spacingMd),
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// 记住我和忘记密码
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Row(
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children: [
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Checkbox(
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value: _rememberMe,
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onChanged: (value) {
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setState(() {
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_rememberMe = value ?? false;
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});
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},
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activeColor: AppColors.primary,
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),
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Text(
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'记住我',
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style: AppTextStyles.bodyMedium.copyWith(
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color: AppColors.onSurface,
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),
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),
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const Spacer(),
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TextButton(
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onPressed: _navigateToForgotPassword,
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child: Text(
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'忘记密码？',
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style: AppTextStyles.bodyMedium.copyWith(
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color: AppColors.primary,
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),
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),
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),
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],
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),
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SizedBox(height: AppDimensions.spacingLg),
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// 测试用户快速填充按钮（仅开发模式显示）
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if (const bool.fromEnvironment('dart.vm.product') == false || true) ...[
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OutlinedButton.icon(
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onPressed: _fillTestUser,
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icon: Icon(
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Icons.bug_report,
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color: AppColors.secondary,
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size: 20,
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),
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label: Text(
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'填充测试用户',
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style: AppTextStyles.bodyMedium.copyWith(
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color: AppColors.secondary,
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),
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),
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style: OutlinedButton.styleFrom(
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side: BorderSide(color: AppColors.secondary),
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padding: EdgeInsets.symmetric(
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vertical: AppDimensions.spacingSm,
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horizontal: AppDimensions.spacingMd,
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),
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),
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),
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SizedBox(height: AppDimensions.spacingMd),
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],
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// 登录按钮
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CustomButton(
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text: '登录',
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onPressed: isLoading ? null : _handleLogin,
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isLoading: isLoading,
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),
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SizedBox(height: AppDimensions.spacingLg),
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// 分割线
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Row(
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children: [
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Expanded(
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child: Divider(
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color: AppColors.onSurface.withOpacity(0.3),
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),
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),
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Padding(
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padding: EdgeInsets.symmetric(horizontal: AppDimensions.spacingMd),
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child: Text(
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'或',
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style: AppTextStyles.bodyMedium.copyWith(
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color: AppColors.onSurface.withOpacity(0.7),
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),
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),
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),
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Expanded(
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child: Divider(
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color: AppColors.onSurface.withOpacity(0.3),
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),
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),
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],
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),
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SizedBox(height: AppDimensions.spacingLg),
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// 第三方登录按钮
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Row(
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children: [
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Expanded(
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child: OutlinedButton.icon(
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onPressed: () {
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// TODO: 实现微信登录
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},
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icon: Icon(
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Icons.wechat,
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color: AppColors.primary,
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),
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label: Text(
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'微信登录',
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style: AppTextStyles.bodyMedium.copyWith(
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color: AppColors.primary,
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),
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),
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style: OutlinedButton.styleFrom(
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side: BorderSide(color: AppColors.primary),
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padding: EdgeInsets.symmetric(
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vertical: AppDimensions.spacingMd,
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),
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),
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),
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),
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SizedBox(width: AppDimensions.spacingMd),
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Expanded(
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child: OutlinedButton.icon(
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onPressed: () {
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// TODO: 实现QQ登录
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},
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icon: Icon(
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Icons.account_circle,
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color: AppColors.primary,
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),
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label: Text(
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'QQ登录',
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style: AppTextStyles.bodyMedium.copyWith(
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color: AppColors.primary,
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),
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),
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style: OutlinedButton.styleFrom(
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side: BorderSide(color: AppColors.primary),
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padding: EdgeInsets.symmetric(
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vertical: AppDimensions.spacingMd,
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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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SizedBox(height: AppDimensions.spacingXl),
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// 注册链接
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(
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'还没有账号？',
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style: AppTextStyles.bodyMedium.copyWith(
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color: AppColors.onSurface.withOpacity(0.7),
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),
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),
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TextButton(
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onPressed: _navigateToRegister,
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child: Text(
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'立即注册',
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style: AppTextStyles.bodyMedium.copyWith(
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color: AppColors.primary,
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fontWeight: FontWeight.bold,
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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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);
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}
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} |