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ai_english/client/lib/features/home/screens/home_screen.dart

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2025-11-17 13:39:05 +08:00
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../../core/routes/app_routes.dart';
import '../../vocabulary/providers/vocabulary_provider.dart';
import '../../vocabulary/models/word_model.dart';
import '../../auth/providers/auth_provider.dart';
import '../../../shared/providers/notification_provider.dart';
import '../../../core/services/tts_service.dart';
/// 首页界面
class HomeScreen extends ConsumerStatefulWidget {
const HomeScreen({super.key});
@override
ConsumerState<HomeScreen> createState() => _HomeScreenState();
}
class _HomeScreenState extends ConsumerState<HomeScreen> {
final TTSService _ttsService = TTSService();
@override
void initState() {
super.initState();
// 初始化TTS服务
_ttsService.initialize();
// 页面首帧后触发数据加载(今日单词与统计)
WidgetsBinding.instance.addPostFrameCallback((_) async {
print('=== HomeScreen: 开始加载数据 ===');
final user = ref.read(currentUserProvider);
print('当前用户: ${user?.username}, ID: ${user?.id}');
try {
// 加载未读通知数量
ref.read(notificationProvider.notifier).loadUnreadCount();
// 直接调用 Notifier 的方法
final notifier = ref.read(vocabularyProvider.notifier);
print('开始加载今日单词...');
await notifier.loadTodayStudyWords(userId: user?.id);
print('今日单词加载完成,数量: ${ref.read(todayWordsProvider).length}');
print('开始加载统计数据...');
await notifier.loadUserVocabularyOverallStats();
await notifier.loadWeeklyStudyStats();
print('统计数据加载完成');
} catch (e, stack) {
print('数据加载失败: $e');
print('堆栈: $stack');
}
print('=== HomeScreen: 数据加载结束 ===');
});
}
@override
void dispose() {
// 释放TTS资源
_ttsService.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xFFF5F5F5),
body: SafeArea(
child: SingleChildScrollView(
physics: const BouncingScrollPhysics(parent: AlwaysScrollableScrollPhysics()),
child: Column(
children: [
_buildHeader(),
const SizedBox(height: 20),
_buildQuickActions(context),
const SizedBox(height: 20),
_buildLearningStats(context),
const SizedBox(height: 20),
_buildTodayWords(),
const SizedBox(height: 20),
_buildAIRecommendation(context),
const SizedBox(height: 100), // 底部导航栏空间
],
),
),
),
);
}
Widget _buildHeader() {
// 直接使用StateNotifierProvider获取认证状态
final authState = ref.watch(authProvider);
final user = authState.user;
final isAuthenticated = authState.isAuthenticated;
final unreadCount = ref.watch(unreadCountProvider);
final avatarUrl = user?.profile?.avatar ?? user?.avatar;
final displayName = user?.profile?.realName ?? user?.username ?? '未登录用户';
final motto = user?.profile?.bio ?? '欢迎来到AI英语学习';
return GestureDetector(
onTap: () {
// 点击头部跳转:未登录->登录页,已登录->个人中心
if (isAuthenticated) {
Navigator.pushNamed(context, Routes.profile);
} else {
Navigator.pushNamed(context, Routes.login);
}
},
child: Container(
padding: const EdgeInsets.all(16),
decoration: const BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [Color(0xFF2196F3), Color(0xFF1976D2)],
),
),
child: Row(
children: [
CircleAvatar(
radius: 25,
backgroundColor: Colors.white,
backgroundImage: avatarUrl != null && avatarUrl.isNotEmpty
? NetworkImage(avatarUrl)
: null,
child: (avatarUrl == null || avatarUrl.isEmpty)
? Icon(
Icons.person,
color: isAuthenticated ? const Color(0xFF2196F3) : Colors.grey,
size: 24,
)
: null,
),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
displayName,
style: const TextStyle(
color: Colors.white,
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
Text(
motto,
style: const TextStyle(
color: Colors.white70,
fontSize: 14,
),
),
],
),
),
Stack(
children: [
IconButton(
onPressed: () {
// TODO: 跳转到通知页面
Navigator.pushNamed(context, '/notifications');
},
icon: const Icon(
Icons.notifications_outlined,
color: Colors.white,
size: 28,
),
),
if (unreadCount > 0)
Positioned(
right: 8,
top: 8,
child: Container(
padding: const EdgeInsets.all(4),
decoration: const BoxDecoration(
color: Colors.red,
shape: BoxShape.circle,
),
constraints: const BoxConstraints(
minWidth: 18,
minHeight: 18,
),
child: Text(
unreadCount > 99 ? '99+' : unreadCount.toString(),
style: const TextStyle(
color: Colors.white,
fontSize: 10,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center,
),
),
),
],
),
],
),
),
);
}
Widget _buildQuickActions(BuildContext context) {
return Container(
margin: const EdgeInsets.symmetric(horizontal: 16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: EdgeInsets.only(left: 4, bottom: 12),
child: Text(
'快速功能',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: Color(0xFF333333),
),
),
),
Row(
children: [
Expanded(
child: _buildQuickActionCard(
context,
'智能复习',
'基于记忆曲线',
Icons.psychology,
const Color(0xFF4CAF50),
() => Navigator.pushNamed(context, '/vocabulary/smart-review'),
),
),
const SizedBox(width: 12),
Expanded(
child: _buildQuickActionCard(
context,
'词汇测试',
'检测学习效果',
Icons.quiz,
const Color(0xFFFF9800),
() => Navigator.pushNamed(context, '/vocabulary/test'),
),
),
],
),
const SizedBox(height: 12),
Row(
children: [
Expanded(
child: _buildQuickActionCard(
context,
'生词本',
'收藏重要单词',
Icons.bookmark,
const Color(0xFF9C27B0),
() => Navigator.pushNamed(context, '/vocabulary/word-book'),
),
),
const SizedBox(width: 12),
Expanded(
child: _buildQuickActionCard(
context,
'学习计划',
'制定学习目标',
Icons.schedule,
const Color(0xFF2196F3),
() => Navigator.pushNamed(context, '/vocabulary/study-plan'),
),
),
],
),
],
),
);
}
Widget _buildQuickActionCard(
BuildContext context,
String title,
String subtitle,
IconData icon,
Color color,
VoidCallback onTap,
) {
return GestureDetector(
onTap: onTap,
child: Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(12),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Column(
children: [
Container(
width: 48,
height: 48,
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(24),
),
child: Icon(
icon,
color: color,
size: 24,
),
),
const SizedBox(height: 12),
Text(
title,
style: const TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
color: Color(0xFF333333),
),
),
const SizedBox(height: 4),
Text(
subtitle,
style: const TextStyle(
fontSize: 12,
color: Colors.grey,
),
textAlign: TextAlign.center,
),
],
),
),
);
}
Widget _buildLearningStats(BuildContext context) {
final statistics = ref.watch(todayStatisticsProvider);
final dailyStats = ref.watch(dailyVocabularyStatsProvider);
final weeklyStudied = ref.watch(weeklyWordsStudiedProvider);
final overallStats = ref.watch(overallVocabularyStatsProvider) ?? {};
final user = ref.watch(currentUserProvider);
final todayStudied = dailyStats?.wordsLearned ?? statistics?.wordsStudied ?? 0;
final totalStudied = (overallStats['total_studied'] as int?) ?? 0;
final weeklyGoal = ((user?.settings?.dailyWordGoal ?? 20) * 7);
final progress = weeklyGoal > 0 ? (weeklyStudied / weeklyGoal).clamp(0.0, 1.0) : 0.0;
final progressPercentText = '${(progress * 100).toInt()}%';
return Container(
margin: const EdgeInsets.symmetric(horizontal: 16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(left: 4, bottom: 12),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
const Text(
'学习统计',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: Color(0xFF333333),
),
),
GestureDetector(
onTap: () {
Navigator.of(context).pushNamed(Routes.learningStatsDetail);
},
child: const Text(
'查看详情',
style: TextStyle(
fontSize: 14,
color: Color(0xFF2196F3),
fontWeight: FontWeight.w500,
),
),
),
],
),
),
Container(
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Column(
children: [
Row(
children: [
Expanded(
child: _buildStatCard(todayStudied.toString(), '今日学习', Icons.today, const Color(0xFF4CAF50)),
),
const SizedBox(width: 12),
Expanded(
child: _buildStatCard(weeklyStudied.toString(), '本周学习', Icons.date_range, const Color(0xFF2196F3)),
),
const SizedBox(width: 12),
Expanded(
child: _buildStatCard(totalStudied.toString(), '总词汇量', Icons.library_books, const Color(0xFFFF9800)),
),
],
),
const SizedBox(height: 16),
Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: const Color(0xFF2196F3).withOpacity(0.1),
borderRadius: BorderRadius.circular(12),
),
child: Row(
children: [
const Icon(
Icons.trending_up,
color: Color(0xFF2196F3),
size: 24,
),
const SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'本周学习进度',
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.w500,
color: Color(0xFF333333),
),
),
Text(
progressPercentText,
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color: Color(0xFF2196F3),
),
),
],
),
),
Container(
width: 60,
height: 6,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(3),
),
child: FractionallySizedBox(
alignment: Alignment.centerLeft,
widthFactor: progress,
child: Container(
decoration: BoxDecoration(
color: const Color(0xFF2196F3),
borderRadius: BorderRadius.circular(3),
),
),
),
),
],
),
),
],
),
),
],
),
);
}
Widget _buildStatCard(String value, String label, IconData icon, Color color) {
return Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(12),
),
child: Column(
children: [
Icon(
icon,
color: color,
size: 20,
),
const SizedBox(height: 8),
Text(
value,
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: color,
),
),
const SizedBox(height: 4),
Text(
label,
style: const TextStyle(
fontSize: 11,
color: Colors.grey,
),
textAlign: TextAlign.center,
),
],
),
);
}
Widget _buildTodayWords() {
final words = ref.watch(todayWordsProvider);
return Container(
margin: const EdgeInsets.symmetric(horizontal: 16),
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
const Text(
'今日单词',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
TextButton(
onPressed: () {
Navigator.pushNamed(context, Routes.dailyWords);
},
child: const Text('查看更多'),
),
],
),
const SizedBox(height: 16),
words.isEmpty
? Center(
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 20.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.book_outlined,
size: 48,
color: Colors.grey[400],
),
const SizedBox(height: 12),
Text(
'暂无今日单词',
style: TextStyle(
fontSize: 16,
color: Colors.grey[600],
fontWeight: FontWeight.w500,
),
),
const SizedBox(height: 8),
TextButton(
onPressed: () async {
// 触发加载今日单词
final notifier = ref.read(vocabularyProvider.notifier);
final user = ref.read(currentUserProvider);
await notifier.loadTodayStudyWords(userId: user?.id);
},
child: const Text('加载今日单词'),
),
],
),
),
)
: Column(
children: [
_buildWordItem(words[0]),
if (words.length > 1) ...[
const SizedBox(height: 12),
_buildWordItem(words[1]),
],
],
),
],
),
);
}
Widget _buildTodayWordsOld() {
final vocabAsync = ref.watch(vocabularyProvider);
return Container(
margin: const EdgeInsets.symmetric(horizontal: 16),
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
const Text(
'今日单词',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
TextButton(
onPressed: () {
Navigator.pushNamed(context, Routes.dailyWords);
},
child: const Text('查看更多'),
),
],
),
const SizedBox(height: 16),
Builder(
builder: (context) {
final state = ref.watch(vocabularyProvider);
final words = state.todayWords;
if (words.isEmpty) {
return Column(
children: [
const Icon(
Icons.book_outlined,
size: 48,
color: Colors.grey,
),
const SizedBox(height: 8),
const Text(
'暂无今日单词',
style: TextStyle(fontSize: 14, color: Colors.grey),
),
const SizedBox(height: 8),
TextButton(
onPressed: () async {
final user = ref.read(currentUserProvider);
final notifier = ref.read(vocabularyProvider.notifier);
await notifier.loadTodayStudyWords(userId: user?.id);
},
child: const Text('刷新'),
),
],
);
}
return Column(
children: [
_buildWordItem(words[0]),
if (words.length > 1) ...[
const SizedBox(height: 12),
_buildWordItem(words[1]),
],
],
);
},
),
],
),
);
}
Widget _buildWordItem(Word word) {
final meaning = word.definitions.isNotEmpty ? word.definitions.first.definition : '';
return Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
word.word,
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 4),
Text(
meaning,
style: const TextStyle(
fontSize: 14,
color: Colors.grey,
),
maxLines: 2,
overflow: TextOverflow.ellipsis,
),
],
),
),
IconButton(
onPressed: () async {
// 播放单词发音
await _ttsService.speak(word.word);
},
icon: const Icon(
Icons.volume_up,
color: Color(0xFF2196F3),
size: 24,
),
),
],
);
}
Widget _buildAIRecommendation(BuildContext context) {
return GestureDetector(
onTap: () {
Navigator.pushNamed(context, '/ai');
},
child: Container(
margin: const EdgeInsets.symmetric(horizontal: 16),
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: const Offset(0, 2),
),
],
),
child: Row(
children: [
Container(
width: 48,
height: 48,
decoration: BoxDecoration(
color: const Color(0xFF2196F3).withOpacity(0.1),
borderRadius: BorderRadius.circular(24),
),
child: const Icon(
Icons.smart_toy,
color: Color(0xFF2196F3),
size: 24,
),
),
const SizedBox(width: 16),
const Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'AI 智能助手',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
SizedBox(height: 4),
Text(
'写作批改 • 口语评估 • 智能推荐\n点击体验AI学习助手',
style: TextStyle(
fontSize: 14,
color: Colors.grey,
),
),
],
),
),
const Icon(
Icons.arrow_forward_ios,
color: Colors.grey,
size: 16,
),
],
),
),
);
}
}