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sjk
2025-11-17 14:09:17 +08:00
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405
client/lib/features/ai/pages/ai_main_page.dart Normal file
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import 'package:flutter/material.dart';
import 'ai_writing_page.dart';
import 'ai_speaking_page.dart';
import '../../../core/network/ai_api_service.dart';
/// AI功能主页面
class AIMainPage extends StatefulWidget {
const AIMainPage({Key? key}) : super(key: key);
@override
State<AIMainPage> createState() => _AIMainPageState();
}
class _AIMainPageState extends State<AIMainPage> {
final AIApiService _aiApiService = AIApiService();
Map<String, dynamic>? _usageStats;
bool _isLoadingStats = false;
@override
void initState() {
super.initState();
_loadUsageStats();
}
Future<void> _loadUsageStats() async {
setState(() {
_isLoadingStats = true;
});
try {
final stats = await _aiApiService.getAIUsageStats();
setState(() {
_usageStats = stats;
_isLoadingStats = false;
});
} catch (e) {
setState(() {
_isLoadingStats = false;
});
// 静默处理错误，不影响用户体验
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('AI智能助手'),
backgroundColor: Theme.of(context).primaryColor,
foregroundColor: Colors.white,
actions: [
IconButton(
icon: const Icon(Icons.refresh),
onPressed: _loadUsageStats,
tooltip: '刷新统计',
),
],
),
body: SingleChildScrollView(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// 欢迎卡片
Card(
elevation: 4,
child: Container(
width: double.infinity,
padding: const EdgeInsets.all(20.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(12),
gradient: LinearGradient(
colors: [
Theme.of(context).primaryColor,
Theme.of(context).primaryColor.withOpacity(0.8),
],
begin: Alignment.topLeft,
end: Alignment.bottomRight,
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Row(
children: [
Icon(
Icons.psychology,
color: Colors.white,
size: 32,
),
SizedBox(width: 12),
Text(
'AI智能助手',
style: TextStyle(
color: Colors.white,
fontSize: 24,
fontWeight: FontWeight.bold,
),
),
],
),
const SizedBox(height: 8),
const Text(
'让AI帮助您提升英语学习效果',
style: TextStyle(
color: Colors.white70,
fontSize: 16,
),
),
const SizedBox(height: 16),
Row(
children: [
_buildFeatureChip('智能批改', Icons.edit),
const SizedBox(width: 8),
_buildFeatureChip('口语评估', Icons.mic),
const SizedBox(width: 8),
_buildFeatureChip('个性推荐', Icons.recommend),
],
),
],
),
),
),
const SizedBox(height: 24),
// 功能模块
const Text(
'AI功能',
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
// 功能卡片网格
GridView.count(
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
crossAxisCount: 2,
crossAxisSpacing: 16,
mainAxisSpacing: 16,
childAspectRatio: 1.2,
children: [
_buildFeatureCard(
title: '写作批改',
subtitle: 'AI智能批改英文写作',
icon: Icons.edit_note,
color: Colors.blue,
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => const AIWritingPage(),
),
);
},
),
_buildFeatureCard(
title: '口语评估',
subtitle: 'AI评估发音和流利度',
icon: Icons.record_voice_over,
color: Colors.green,
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => const AISpeakingPage(),
),
);
},
),
_buildFeatureCard(
title: '智能推荐',
subtitle: '个性化学习内容推荐',
icon: Icons.lightbulb,
color: Colors.orange,
onTap: () {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('智能推荐功能即将上线')),
);
},
),
_buildFeatureCard(
title: '练习生成',
subtitle: 'AI生成个性化练习题',
icon: Icons.quiz,
color: Colors.purple,
onTap: () {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('练习生成功能即将上线')),
);
},
),
],
),
const SizedBox(height: 24),
// 使用统计
if (_usageStats != null)
Card(
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Row(
children: [
Icon(Icons.analytics, color: Colors.blue),
SizedBox(width: 8),
Text(
'使用统计',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
],
),
const SizedBox(height: 16),
Row(
children: [
Expanded(
child: _buildStatItem(
'写作批改',
'${_usageStats!['writing_corrections'] ?? 0}',
Icons.edit,
Colors.blue,
),
),
Expanded(
child: _buildStatItem(
'口语评估',
'${_usageStats!['speaking_evaluations'] ?? 0}',
Icons.mic,
Colors.green,
),
),
],
),
const SizedBox(height: 12),
Row(
children: [
Expanded(
child: _buildStatItem(
'总使用次数',
'${_usageStats!['total_usage'] ?? 0}',
Icons.trending_up,
Colors.orange,
),
),
Expanded(
child: _buildStatItem(
'本月使用',
'${_usageStats!['monthly_usage'] ?? 0}',
Icons.calendar_month,
Colors.purple,
),
),
],
),
],
),
),
),
// 加载统计时的占位符
if (_isLoadingStats)
const Card(
child: Padding(
padding: EdgeInsets.all(16.0),
child: Center(
child: Column(
children: [
CircularProgressIndicator(),
SizedBox(height: 8),
Text('加载使用统计中...'),
],
),
),
),
),
],
),
),
);
}
Widget _buildFeatureChip(String label, IconData icon) {
return Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
decoration: BoxDecoration(
color: Colors.white.withOpacity(0.2),
borderRadius: BorderRadius.circular(16),
),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(icon, color: Colors.white, size: 16),
const SizedBox(width: 4),
Text(
label,
style: const TextStyle(
color: Colors.white,
fontSize: 12,
),
),
],
),
);
}
Widget _buildFeatureCard({
required String title,
required String subtitle,
required IconData icon,
required Color color,
required VoidCallback onTap,
}) {
return Card(
elevation: 2,
child: InkWell(
onTap: onTap,
borderRadius: BorderRadius.circular(12),
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: color.withOpacity(0.1),
shape: BoxShape.circle,
),
child: Icon(
icon,
color: color,
size: 32,
),
),
const SizedBox(height: 12),
Text(
title,
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 4),
Text(
subtitle,
style: TextStyle(
fontSize: 12,
color: Colors.grey.shade600,
),
textAlign: TextAlign.center,
),
],
),
),
),
);
}
Widget _buildStatItem(
String label,
String value,
IconData icon,
Color color,
) {
return Container(
padding: const EdgeInsets.all(12),
margin: const EdgeInsets.symmetric(horizontal: 4),
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(8),
),
child: Column(
children: [
Icon(icon, color: color, size: 24),
const SizedBox(height: 8),
Text(
value,
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: color,
),
),
const SizedBox(height: 4),
Text(
label,
style: TextStyle(
fontSize: 12,
color: Colors.grey.shade600,
),
textAlign: TextAlign.center,
),
],
),
);
}
}

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client/lib/features/ai/pages/ai_speaking_page.dart Normal file
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import 'package:flutter/material.dart';
import 'dart:io';
import '../../../core/network/ai_api_service.dart';
/// AI口语评估页面
class AISpeakingPage extends StatefulWidget {
const AISpeakingPage({Key? key}) : super(key: key);
@override
State<AISpeakingPage> createState() => _AISpeakingPageState();
}
class _AISpeakingPageState extends State<AISpeakingPage> {
final AIApiService _aiApiService = AIApiService();
bool _isRecording = false;
bool _isLoading = false;
File? _audioFile;
Map<String, dynamic>? _evaluationResult;
String? _error;
String _selectedTask = 'pronunciation';
final List<Map<String, String>> _taskTypes = [
{'value': 'pronunciation', 'label': '发音评估'},
{'value': 'fluency', 'label': '流利度评估'},
{'value': 'conversation', 'label': '对话评估'},
{'value': 'presentation', 'label': '演讲评估'},
];
Future<void> _startRecording() async {
// 这里应该集成录音功能
// 暂时模拟录音状态
setState(() {
_isRecording = true;
_error = null;
});
// 模拟录音过程
await Future.delayed(const Duration(seconds: 2));
setState(() {
_isRecording = false;
// 模拟生成音频文件
_audioFile = File('/tmp/mock_audio.wav');
});
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('录音完成，可以开始评估')),
);
}
Future<void> _stopRecording() async {
setState(() {
_isRecording = false;
});
}
Future<void> _submitForEvaluation() async {
if (_audioFile == null) {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('请先录制音频')),
);
return;
}
setState(() {
_isLoading = true;
_error = null;
_evaluationResult = null;
});
try {
final result = await _aiApiService.evaluateSpeaking(
audioText: '模拟音频转文本结果', // 实际应该是音频转文本的结果
prompt: '请评估这段英语口语的$_selectedTask',
);
setState(() {
_evaluationResult = result;
_isLoading = false;
});
} catch (e) {
setState(() {
_error = e.toString();
_isLoading = false;
});
}
}
void _clearRecording() {
setState(() {
_audioFile = null;
_evaluationResult = null;
_error = null;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('AI口语评估'),
backgroundColor: Theme.of(context).primaryColor,
foregroundColor: Colors.white,
actions: [
IconButton(
icon: const Icon(Icons.clear),
onPressed: _clearRecording,
tooltip: '清空录音',
),
],
),
body: SingleChildScrollView(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// 任务类型选择
Card(
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'评估类型',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 12),
Wrap(
spacing: 8,
children: _taskTypes.map((type) {
final isSelected = _selectedTask == type['value'];
return ChoiceChip(
label: Text(type['label']!),
selected: isSelected,
onSelected: (selected) {
if (selected) {
setState(() {
_selectedTask = type['value']!;
});
}
},
);
}).toList(),
),
],
),
),
),
const SizedBox(height: 16),
// 录音控制区域
Card(
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'录音控制',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
// 录音按钮
Center(
child: Column(
children: [
GestureDetector(
onTap: _isRecording ? _stopRecording : _startRecording,
child: Container(
width: 120,
height: 120,
decoration: BoxDecoration(
shape: BoxShape.circle,
color: _isRecording
? Colors.red.shade400
: Theme.of(context).primaryColor,
boxShadow: [
BoxShadow(
color: (_isRecording
? Colors.red.shade400
: Theme.of(context).primaryColor)
.withOpacity(0.3),
spreadRadius: _isRecording ? 10 : 5,
blurRadius: 20,
),
],
),
child: Icon(
_isRecording ? Icons.stop : Icons.mic,
size: 50,
color: Colors.white,
),
),
),
const SizedBox(height: 16),
Text(
_isRecording ? '点击停止录音' : '点击开始录音',
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
if (_audioFile != null)
Container(
margin: const EdgeInsets.only(top: 12),
padding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 8,
),
decoration: BoxDecoration(
color: Colors.green.shade50,
borderRadius: BorderRadius.circular(20),
border: Border.all(
color: Colors.green.shade200,
),
),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(
Icons.check_circle,
color: Colors.green.shade600,
size: 16,
),
const SizedBox(width: 4),
const Text(
'录音完成',
style: TextStyle(fontSize: 12),
),
],
),
),
],
),
),
const SizedBox(height: 16),
// 评估按钮
SizedBox(
width: double.infinity,
child: ElevatedButton(
onPressed: (_audioFile != null && !_isLoading)
? _submitForEvaluation
: null,
style: ElevatedButton.styleFrom(
backgroundColor: Theme.of(context).primaryColor,
foregroundColor: Colors.white,
padding: const EdgeInsets.symmetric(vertical: 16),
),
child: _isLoading
? const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
SizedBox(
width: 20,
height: 20,
child: CircularProgressIndicator(
strokeWidth: 2,
valueColor: AlwaysStoppedAnimation<Color>(Colors.white),
),
),
SizedBox(width: 8),
Text('AI评估中...'),
],
)
: const Text(
'开始AI评估',
style: TextStyle(fontSize: 16),
),
),
),
],
),
),
),
const SizedBox(height: 16),
// 错误显示
if (_error != null)
Card(
color: Colors.red.shade50,
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Row(
children: [
Icon(Icons.error, color: Colors.red.shade700),
const SizedBox(width: 8),
Expanded(
child: Text(
_error!,
style: TextStyle(color: Colors.red.shade700),
),
),
],
),
),
),
// 评估结果显示
if (_evaluationResult != null)
Card(
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(
Icons.assessment,
color: Colors.blue.shade600,
),
const SizedBox(width: 8),
const Text(
'AI评估结果',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
],
),
const SizedBox(height: 16),
// 总体评分
if (_evaluationResult!['overall_score'] != null)
Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Colors.blue.shade50,
borderRadius: BorderRadius.circular(8),
),
child: Row(
children: [
const Icon(Icons.star, color: Colors.amber),
const SizedBox(width: 8),
Text(
'总体评分: ${_evaluationResult!['overall_score']}/100',
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
],
),
),
const SizedBox(height: 12),
// 各项评分
if (_evaluationResult!['scores'] != null)
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'详细评分:',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 8),
...(_evaluationResult!['scores'] as Map<String, dynamic>)
.entries
.map(
(entry) => Padding(
padding: const EdgeInsets.symmetric(vertical: 4),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
_getScoreLabel(entry.key),
style: const TextStyle(fontSize: 14),
),
Container(
padding: const EdgeInsets.symmetric(
horizontal: 8,
vertical: 2,
),
decoration: BoxDecoration(
color: _getScoreColor(entry.value),
borderRadius: BorderRadius.circular(12),
),
child: Text(
'${entry.value}/100',
style: const TextStyle(
color: Colors.white,
fontSize: 12,
fontWeight: FontWeight.bold,
),
),
),
],
),
),
),
],
),
// 改进建议
if (_evaluationResult!['suggestions'] != null)
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const SizedBox(height: 16),
const Text(
'改进建议:',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 8),
Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Colors.green.shade50,
borderRadius: BorderRadius.circular(8),
border: Border.all(
color: Colors.green.shade200,
),
),
child: Text(
_evaluationResult!['suggestions'].toString(),
style: const TextStyle(fontSize: 14),
),
),
],
),
],
),
),
),
],
),
),
);
}
String _getScoreLabel(String key) {
switch (key) {
case 'pronunciation':
return '发音准确度';
case 'fluency':
return '流利度';
case 'grammar':
return '语法正确性';
case 'vocabulary':
return '词汇丰富度';
case 'coherence':
return '连贯性';
default:
return key;
}
}
Color _getScoreColor(dynamic score) {
final scoreValue = score is int ? score : int.tryParse(score.toString()) ?? 0;
if (scoreValue >= 80) {
return Colors.green;
} else if (scoreValue >= 60) {
return Colors.orange;
} else {
return Colors.red;
}
}
}

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client/lib/features/ai/pages/ai_writing_page.dart Normal file
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import 'package:flutter/material.dart';
import '../../../core/network/ai_api_service.dart';
/// AI写作批改页面
class AIWritingPage extends StatefulWidget {
const AIWritingPage({Key? key}) : super(key: key);
@override
State<AIWritingPage> createState() => _AIWritingPageState();
}
class _AIWritingPageState extends State<AIWritingPage> {
final TextEditingController _contentController = TextEditingController();
final AIApiService _aiApiService = AIApiService();
String _selectedType = 'essay';
bool _isLoading = false;
Map<String, dynamic>? _correctionResult;
String? _error;
final List<Map<String, String>> _writingTypes = [
{'value': 'essay', 'label': '议论文'},
{'value': 'email', 'label': '邮件'},
{'value': 'report', 'label': '报告'},
{'value': 'letter', 'label': '信件'},
{'value': 'story', 'label': '故事'},
];
@override
void dispose() {
_contentController.dispose();
super.dispose();
}
Future<void> _submitForCorrection() async {
if (_contentController.text.trim().isEmpty) {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('请输入要批改的内容')),
);
return;
}
setState(() {
_isLoading = true;
_error = null;
_correctionResult = null;
});
try {
final result = await _aiApiService.correctWriting(
content: _contentController.text.trim(),
taskType: _selectedType,
);
setState(() {
_correctionResult = result;
_isLoading = false;
});
} catch (e) {
setState(() {
_error = e.toString();
_isLoading = false;
});
}
}
void _clearContent() {
setState(() {
_contentController.clear();
_correctionResult = null;
_error = null;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('AI写作批改'),
backgroundColor: Theme.of(context).primaryColor,
foregroundColor: Colors.white,
actions: [
IconButton(
icon: const Icon(Icons.clear),
onPressed: _clearContent,
tooltip: '清空内容',
),
],
),
body: SingleChildScrollView(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// 写作类型选择
Card(
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'写作类型',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 12),
Wrap(
spacing: 8,
children: _writingTypes.map((type) {
final isSelected = _selectedType == type['value'];
return ChoiceChip(
label: Text(type['label']!),
selected: isSelected,
onSelected: (selected) {
if (selected) {
setState(() {
_selectedType = type['value']!;
});
}
},
);
}).toList(),
),
],
),
),
),
const SizedBox(height: 16),
// 内容输入区域
Card(
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'写作内容',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 12),
TextField(
controller: _contentController,
maxLines: 10,
decoration: const InputDecoration(
hintText: '请输入您的英文写作内容...',
border: OutlineInputBorder(),
contentPadding: EdgeInsets.all(12),
),
),
const SizedBox(height: 16),
SizedBox(
width: double.infinity,
child: ElevatedButton(
onPressed: _isLoading ? null : _submitForCorrection,
style: ElevatedButton.styleFrom(
backgroundColor: Theme.of(context).primaryColor,
foregroundColor: Colors.white,
padding: const EdgeInsets.symmetric(vertical: 16),
),
child: _isLoading
? const Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
SizedBox(
width: 20,
height: 20,
child: CircularProgressIndicator(
strokeWidth: 2,
valueColor: AlwaysStoppedAnimation<Color>(Colors.white),
),
),
SizedBox(width: 8),
Text('AI批改中...'),
],
)
: const Text(
'开始AI批改',
style: TextStyle(fontSize: 16),
),
),
),
],
),
),
),
const SizedBox(height: 16),
// 错误显示
if (_error != null)
Card(
color: Colors.red.shade50,
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Row(
children: [
Icon(Icons.error, color: Colors.red.shade700),
const SizedBox(width: 8),
Expanded(
child: Text(
_error!,
style: TextStyle(color: Colors.red.shade700),
),
),
],
),
),
),
// 批改结果显示
if (_correctionResult != null)
Card(
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(
Icons.check_circle,
color: Colors.green.shade600,
),
const SizedBox(width: 8),
const Text(
'AI批改结果',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
],
),
const SizedBox(height: 16),
// 总体评分
if (_correctionResult!['score'] != null)
Container(
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Colors.blue.shade50,
borderRadius: BorderRadius.circular(8),
),
child: Row(
children: [
const Icon(Icons.star, color: Colors.amber),
const SizedBox(width: 8),
Text(
'总体评分: ${_correctionResult!['score']}/100',
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
],
),
),
const SizedBox(height: 12),
// 批改建议
if (_correctionResult!['suggestions'] != null)
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'批改建议:',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 8),
Text(
_correctionResult!['suggestions'].toString(),
style: const TextStyle(fontSize: 14),
),
],
),
// 错误列表
if (_correctionResult!['errors'] != null)
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const SizedBox(height: 16),
const Text(
'发现的错误:',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 8),
...(_correctionResult!['errors'] as List).map(
(error) => Container(
margin: const EdgeInsets.only(bottom: 8),
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: Colors.orange.shade50,
borderRadius: BorderRadius.circular(8),
border: Border.all(
color: Colors.orange.shade200,
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'错误类型: ${error['type'] ?? '未知'}',
style: TextStyle(
fontWeight: FontWeight.bold,
color: Colors.orange.shade700,
),
),
if (error['original'] != null)
Text('原文: ${error['original']}'),
if (error['corrected'] != null)
Text(
'建议: ${error['corrected']}',
style: TextStyle(
color: Colors.green.shade700,
fontWeight: FontWeight.bold,
),
),
if (error['explanation'] != null)
Text(
'说明: ${error['explanation']}',
style: const TextStyle(fontSize: 12),
),
],
),
),
),
],
),
],
),
),
),
],
),
),
);
}
}