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sjk
2025-11-17 14:09:17 +08:00
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client/lib/features/writing/screens/writing_result_screen.dart Normal file
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import 'package:flutter/material.dart';
import '../models/writing_task.dart';
import '../models/writing_record.dart';
import '../services/writing_record_service.dart';
/// 写作结果页面
class WritingResultScreen extends StatefulWidget {
final WritingTask task;
final String content;
final int wordCount;
final int timeUsed; // 使用的时间（秒）
const WritingResultScreen({
super.key,
required this.task,
required this.content,
required this.wordCount,
required this.timeUsed,
});
@override
State<WritingResultScreen> createState() => _WritingResultScreenState();
}
class _WritingResultScreenState extends State<WritingResultScreen> {
late int score;
late Map<String, dynamic> feedback;
bool _recordSaved = false;
@override
void initState() {
super.initState();
score = _calculateScore();
feedback = _generateFeedback(score);
_saveWritingRecord();
}
Future<void> _saveWritingRecord() async {
if (_recordSaved) return;
final record = WritingRecord(
id: 'record_${DateTime.now().millisecondsSinceEpoch}',
taskId: widget.task.id,
taskTitle: widget.task.title,
taskDescription: widget.task.description,
content: widget.content,
wordCount: widget.wordCount,
timeUsed: widget.timeUsed,
score: score,
completedAt: DateTime.now(),
feedback: feedback,
);
await WritingRecordService.saveRecord(record);
_recordSaved = true;
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xFFF5F5F5),
appBar: AppBar(
title: const Text('写作结果'),
backgroundColor: Colors.white,
foregroundColor: Colors.black,
elevation: 0,
automaticallyImplyLeading: false,
actions: [
IconButton(
icon: const Icon(Icons.close),
onPressed: () {
Navigator.popUntil(context, (route) => route.isFirst);
},
),
],
),
body: SingleChildScrollView(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
_buildScoreCard(score),
const SizedBox(height: 20),
_buildStatistics(),
const SizedBox(height: 20),
_buildFeedback(feedback),
const SizedBox(height: 20),
_buildContentReview(),
const SizedBox(height: 30),
_buildActionButtons(context),
],
),
),
);
}
Widget _buildScoreCard(int score) {
Color scoreColor;
String scoreLevel;
if (score >= 90) {
scoreColor = const Color(0xFF4CAF50);
scoreLevel = '优秀';
} else if (score >= 80) {
scoreColor = const Color(0xFF2196F3);
scoreLevel = '良好';
} else if (score >= 70) {
scoreColor = const Color(0xFFFF9800);
scoreLevel = '一般';
} else {
scoreColor = const Color(0xFFF44336);
scoreLevel = '需要改进';
}
return Container(
padding: const EdgeInsets.all(24),
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: [
const Text(
'写作得分',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
Container(
width: 120,
height: 120,
decoration: BoxDecoration(
shape: BoxShape.circle,
color: scoreColor.withOpacity(0.1),
border: Border.all(
color: scoreColor,
width: 4,
),
),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'$score',
style: TextStyle(
fontSize: 36,
fontWeight: FontWeight.bold,
color: scoreColor,
),
),
Text(
scoreLevel,
style: TextStyle(
fontSize: 14,
color: scoreColor,
fontWeight: FontWeight.w500,
),
),
],
),
),
),
const SizedBox(height: 16),
Text(
widget.task.title,
style: const TextStyle(
fontSize: 16,
color: Colors.grey,
),
textAlign: TextAlign.center,
),
],
),
);
}
Widget _buildStatistics() {
final timeUsedMinutes = (widget.timeUsed / 60).ceil();
final timeLimit = widget.task.timeLimit;
final wordLimit = widget.task.wordLimit;
return 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(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'写作统计',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
Row(
children: [
Expanded(
child: _buildStatItem(
Icons.text_fields,
'字数',
'${widget.wordCount} / $wordLimit',
widget.wordCount <= wordLimit ? const Color(0xFF4CAF50) : const Color(0xFFF44336),
),
),
Expanded(
child: _buildStatItem(
Icons.timer,
'用时',
'$timeUsedMinutes / $timeLimit 分钟',
const Color(0xFF2196F3),
),
),
],
),
const SizedBox(height: 16),
Row(
children: [
Expanded(
child: _buildStatItem(
Icons.category,
'类型',
widget.task.type.displayName,
const Color(0xFFFF9800),
),
),
Expanded(
child: _buildStatItem(
Icons.star,
'难度',
widget.task.difficulty.displayName,
_getDifficultyColor(widget.task.difficulty),
),
),
],
),
],
),
);
}
Widget _buildStatItem(IconData icon, String label, String value, 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(12),
),
child: Column(
children: [
Icon(
icon,
color: color,
size: 24,
),
const SizedBox(height: 8),
Text(
label,
style: const TextStyle(
fontSize: 12,
color: Colors.grey,
),
),
const SizedBox(height: 4),
Text(
value,
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
color: color,
),
textAlign: TextAlign.center,
),
],
),
);
}
Widget _buildFeedback(Map<String, dynamic> feedback) {
return 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(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'评价反馈',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 16),
_buildFeedbackItem('内容质量', feedback['content'], feedback['contentScore']),
const SizedBox(height: 12),
_buildFeedbackItem('语法准确性', feedback['grammar'], feedback['grammarScore']),
const SizedBox(height: 12),
_buildFeedbackItem('词汇运用', feedback['vocabulary'], feedback['vocabularyScore']),
const SizedBox(height: 12),
_buildFeedbackItem('结构组织', feedback['structure'], feedback['structureScore']),
],
),
);
}
Widget _buildFeedbackItem(String title, String description, int score) {
Color scoreColor;
if (score >= 90) {
scoreColor = const Color(0xFF4CAF50);
} else if (score >= 80) {
scoreColor = const Color(0xFF2196F3);
} else if (score >= 70) {
scoreColor = const Color(0xFFFF9800);
} else {
scoreColor = const Color(0xFFF44336);
}
return Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.grey[50],
borderRadius: BorderRadius.circular(12),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Expanded(
child: Text(
title,
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
),
Container(
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
decoration: BoxDecoration(
color: scoreColor,
borderRadius: BorderRadius.circular(12),
),
child: Text(
'$score分',
style: const TextStyle(
fontSize: 12,
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
],
),
const SizedBox(height: 8),
Text(
description,
style: const TextStyle(
fontSize: 14,
color: Colors.grey,
height: 1.5,
),
),
],
),
);
}
Widget _buildContentReview() {
return 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(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'写作内容',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 12),
Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.grey[50],
borderRadius: BorderRadius.circular(12),
),
child: Text(
widget.content.isEmpty ? '未提交任何内容' : widget.content,
style: const TextStyle(
fontSize: 14,
height: 1.6,
),
),
),
],
),
);
}
Widget _buildActionButtons(BuildContext context) {
return Row(
children: [
Expanded(
child: OutlinedButton(
onPressed: () {
Navigator.popUntil(context, (route) => route.isFirst);
},
style: OutlinedButton.styleFrom(
foregroundColor: const Color(0xFF2196F3),
side: const BorderSide(color: Color(0xFF2196F3)),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
padding: const EdgeInsets.symmetric(vertical: 16),
),
child: const Text('返回首页'),
),
),
const SizedBox(width: 16),
Expanded(
child: ElevatedButton(
onPressed: () {
// TODO: 实现重新练习功能
Navigator.pop(context);
},
style: ElevatedButton.styleFrom(
backgroundColor: const Color(0xFF2196F3),
foregroundColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
padding: const EdgeInsets.symmetric(vertical: 16),
elevation: 0,
),
child: const Text(
'重新练习',
style: TextStyle(
fontWeight: FontWeight.bold,
),
),
),
),
],
);
}
int _calculateScore() {
int score = 70; // 基础分数
// 字数评分
if (widget.wordCount >= widget.task.wordLimit * 0.8 && widget.wordCount <= widget.task.wordLimit * 1.2) {
score += 10;
} else if (widget.wordCount >= widget.task.wordLimit * 0.6) {
score += 5;
}
// 时间评分
final timeUsedMinutes = widget.timeUsed / 60;
if (timeUsedMinutes <= widget.task.timeLimit) {
score += 10;
}
// 内容长度评分
if (widget.content.length > 100) {
score += 10;
}
return score.clamp(0, 100);
}
Map<String, dynamic> _generateFeedback(int score) {
return {
'content': score >= 80
? '内容丰富，主题明确，论述清晰。'
: '内容需要更加充实，建议增加具体的例子和细节。',
'contentScore': score >= 80 ? 85 : 75,
'grammar': score >= 80
? '语法使用准确，句式多样。'
: '语法基本正确，建议注意时态和语态的使用。',
'grammarScore': score >= 80 ? 88 : 78,
'vocabulary': score >= 80
? '词汇运用恰当，表达准确。'
: '词汇使用基本准确，可以尝试使用更多高级词汇。',
'vocabularyScore': score >= 80 ? 82 : 72,
'structure': score >= 80
? '文章结构清晰，逻辑性强。'
: '文章结构基本合理，建议加强段落之间的连接。',
'structureScore': score >= 80 ? 86 : 76,
};
}
Color _getDifficultyColor(WritingDifficulty difficulty) {
switch (difficulty) {
case WritingDifficulty.beginner:
return const Color(0xFF4CAF50);
case WritingDifficulty.elementary:
return const Color(0xFF8BC34A);
case WritingDifficulty.intermediate:
return const Color(0xFFFF9800);
case WritingDifficulty.upperIntermediate:
return const Color(0xFFFF5722);
case WritingDifficulty.advanced:
return const Color(0xFFF44336);
}
}
}