551 lines
16 KiB
Dart
551 lines
16 KiB
Dart
import 'package:flutter/material.dart';
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import '../models/writing_task.dart';
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import '../models/writing_record.dart';
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import '../services/writing_record_service.dart';
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/// 写作结果页面
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class WritingResultScreen extends StatefulWidget {
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final WritingTask task;
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final String content;
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final int wordCount;
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final int timeUsed; // 使用的时间（秒）
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const WritingResultScreen({
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super.key,
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required this.task,
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required this.content,
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required this.wordCount,
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required this.timeUsed,
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});
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@override
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State<WritingResultScreen> createState() => _WritingResultScreenState();
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}
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class _WritingResultScreenState extends State<WritingResultScreen> {
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late int score;
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late Map<String, dynamic> feedback;
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bool _recordSaved = false;
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@override
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void initState() {
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super.initState();
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score = _calculateScore();
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feedback = _generateFeedback(score);
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_saveWritingRecord();
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}
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Future<void> _saveWritingRecord() async {
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if (_recordSaved) return;
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final record = WritingRecord(
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id: 'record_${DateTime.now().millisecondsSinceEpoch}',
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taskId: widget.task.id,
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taskTitle: widget.task.title,
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taskDescription: widget.task.description,
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content: widget.content,
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wordCount: widget.wordCount,
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timeUsed: widget.timeUsed,
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score: score,
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completedAt: DateTime.now(),
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feedback: feedback,
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);
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await WritingRecordService.saveRecord(record);
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_recordSaved = true;
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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: const Color(0xFFF5F5F5),
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appBar: AppBar(
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title: const Text('写作结果'),
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backgroundColor: Colors.white,
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foregroundColor: Colors.black,
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elevation: 0,
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automaticallyImplyLeading: false,
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actions: [
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IconButton(
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icon: const Icon(Icons.close),
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onPressed: () {
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Navigator.popUntil(context, (route) => route.isFirst);
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},
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),
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],
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),
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body: SingleChildScrollView(
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padding: const EdgeInsets.all(16),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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_buildScoreCard(score),
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const SizedBox(height: 20),
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_buildStatistics(),
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const SizedBox(height: 20),
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_buildFeedback(feedback),
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const SizedBox(height: 20),
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_buildContentReview(),
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const SizedBox(height: 30),
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_buildActionButtons(context),
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],
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),
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),
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);
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}
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Widget _buildScoreCard(int score) {
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Color scoreColor;
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String scoreLevel;
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if (score >= 90) {
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scoreColor = const Color(0xFF4CAF50);
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scoreLevel = '优秀';
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} else if (score >= 80) {
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scoreColor = const Color(0xFF2196F3);
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scoreLevel = '良好';
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} else if (score >= 70) {
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scoreColor = const Color(0xFFFF9800);
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scoreLevel = '一般';
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} else {
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scoreColor = const Color(0xFFF44336);
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scoreLevel = '需要改进';
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}
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return Container(
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padding: const EdgeInsets.all(24),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.05),
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blurRadius: 10,
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offset: const Offset(0, 2),
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),
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],
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),
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child: Column(
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children: [
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const Text(
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'写作得分',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 16),
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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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shape: BoxShape.circle,
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color: scoreColor.withOpacity(0.1),
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border: Border.all(
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color: scoreColor,
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width: 4,
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),
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),
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child: Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(
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'$score',
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style: TextStyle(
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fontSize: 36,
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fontWeight: FontWeight.bold,
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color: scoreColor,
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),
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),
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Text(
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scoreLevel,
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style: TextStyle(
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fontSize: 14,
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color: scoreColor,
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fontWeight: FontWeight.w500,
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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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const SizedBox(height: 16),
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Text(
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widget.task.title,
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style: const TextStyle(
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fontSize: 16,
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color: Colors.grey,
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),
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textAlign: TextAlign.center,
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),
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],
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),
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);
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}
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Widget _buildStatistics() {
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final timeUsedMinutes = (widget.timeUsed / 60).ceil();
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final timeLimit = widget.task.timeLimit;
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final wordLimit = widget.task.wordLimit;
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return Container(
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padding: const EdgeInsets.all(20),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.05),
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blurRadius: 10,
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offset: const Offset(0, 2),
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),
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],
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'写作统计',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 16),
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Row(
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children: [
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Expanded(
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child: _buildStatItem(
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Icons.text_fields,
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'字数',
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'${widget.wordCount} / $wordLimit',
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widget.wordCount <= wordLimit ? const Color(0xFF4CAF50) : const Color(0xFFF44336),
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),
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),
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Expanded(
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child: _buildStatItem(
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Icons.timer,
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'用时',
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'$timeUsedMinutes / $timeLimit 分钟',
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const Color(0xFF2196F3),
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),
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),
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],
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),
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const SizedBox(height: 16),
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Row(
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children: [
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Expanded(
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child: _buildStatItem(
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Icons.category,
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'类型',
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widget.task.type.displayName,
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const Color(0xFFFF9800),
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),
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),
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Expanded(
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child: _buildStatItem(
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Icons.star,
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'难度',
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widget.task.difficulty.displayName,
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_getDifficultyColor(widget.task.difficulty),
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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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Widget _buildStatItem(IconData icon, String label, String value, Color color) {
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return Container(
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padding: const EdgeInsets.all(12),
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margin: const EdgeInsets.symmetric(horizontal: 4),
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decoration: BoxDecoration(
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color: color.withOpacity(0.1),
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borderRadius: BorderRadius.circular(12),
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),
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child: Column(
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children: [
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Icon(
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icon,
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color: color,
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size: 24,
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),
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const SizedBox(height: 8),
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Text(
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label,
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style: const TextStyle(
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fontSize: 12,
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color: Colors.grey,
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),
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),
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const SizedBox(height: 4),
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Text(
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value,
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style: TextStyle(
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fontSize: 14,
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fontWeight: FontWeight.bold,
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color: color,
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),
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textAlign: TextAlign.center,
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),
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],
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),
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);
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}
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Widget _buildFeedback(Map<String, dynamic> feedback) {
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return Container(
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padding: const EdgeInsets.all(20),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.05),
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blurRadius: 10,
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offset: const Offset(0, 2),
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),
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],
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'评价反馈',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 16),
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_buildFeedbackItem('内容质量', feedback['content'], feedback['contentScore']),
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const SizedBox(height: 12),
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_buildFeedbackItem('语法准确性', feedback['grammar'], feedback['grammarScore']),
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const SizedBox(height: 12),
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_buildFeedbackItem('词汇运用', feedback['vocabulary'], feedback['vocabularyScore']),
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const SizedBox(height: 12),
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_buildFeedbackItem('结构组织', feedback['structure'], feedback['structureScore']),
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],
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),
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);
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}
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Widget _buildFeedbackItem(String title, String description, int score) {
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Color scoreColor;
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if (score >= 90) {
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scoreColor = const Color(0xFF4CAF50);
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} else if (score >= 80) {
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scoreColor = const Color(0xFF2196F3);
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} else if (score >= 70) {
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scoreColor = const Color(0xFFFF9800);
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} else {
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scoreColor = const Color(0xFFF44336);
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}
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return Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.grey[50],
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borderRadius: BorderRadius.circular(12),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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Expanded(
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child: Text(
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title,
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style: const TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.bold,
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),
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),
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),
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
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decoration: BoxDecoration(
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color: scoreColor,
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borderRadius: BorderRadius.circular(12),
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),
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child: Text(
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'$score分',
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style: const TextStyle(
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fontSize: 12,
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color: Colors.white,
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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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const SizedBox(height: 8),
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Text(
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description,
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style: const TextStyle(
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fontSize: 14,
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color: Colors.grey,
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height: 1.5,
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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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Widget _buildContentReview() {
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return Container(
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padding: const EdgeInsets.all(20),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.05),
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blurRadius: 10,
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offset: const Offset(0, 2),
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),
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],
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'写作内容',
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 12),
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Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.grey[50],
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borderRadius: BorderRadius.circular(12),
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),
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child: Text(
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widget.content.isEmpty ? '未提交任何内容' : widget.content,
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style: const TextStyle(
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fontSize: 14,
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height: 1.6,
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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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Widget _buildActionButtons(BuildContext context) {
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return Row(
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children: [
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Expanded(
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child: OutlinedButton(
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onPressed: () {
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Navigator.popUntil(context, (route) => route.isFirst);
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},
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style: OutlinedButton.styleFrom(
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foregroundColor: const Color(0xFF2196F3),
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side: const BorderSide(color: Color(0xFF2196F3)),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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padding: const EdgeInsets.symmetric(vertical: 16),
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),
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child: const Text('返回首页'),
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),
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),
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const SizedBox(width: 16),
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Expanded(
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child: ElevatedButton(
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onPressed: () {
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// TODO: 实现重新练习功能
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Navigator.pop(context);
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},
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style: ElevatedButton.styleFrom(
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backgroundColor: const Color(0xFF2196F3),
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foregroundColor: Colors.white,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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padding: const EdgeInsets.symmetric(vertical: 16),
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elevation: 0,
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),
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child: const Text(
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'重新练习',
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style: TextStyle(
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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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int _calculateScore() {
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int score = 70; // 基础分数
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// 字数评分
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if (widget.wordCount >= widget.task.wordLimit * 0.8 && widget.wordCount <= widget.task.wordLimit * 1.2) {
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score += 10;
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} else if (widget.wordCount >= widget.task.wordLimit * 0.6) {
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score += 5;
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}
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// 时间评分
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final timeUsedMinutes = widget.timeUsed / 60;
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if (timeUsedMinutes <= widget.task.timeLimit) {
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score += 10;
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}
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// 内容长度评分
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if (widget.content.length > 100) {
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score += 10;
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}
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return score.clamp(0, 100);
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}
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Map<String, dynamic> _generateFeedback(int score) {
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return {
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'content': score >= 80
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? '内容丰富，主题明确，论述清晰。'
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: '内容需要更加充实，建议增加具体的例子和细节。',
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'contentScore': score >= 80 ? 85 : 75,
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'grammar': score >= 80
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? '语法使用准确，句式多样。'
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: '语法基本正确，建议注意时态和语态的使用。',
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'grammarScore': score >= 80 ? 88 : 78,
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'vocabulary': score >= 80
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? '词汇运用恰当，表达准确。'
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: '词汇使用基本准确，可以尝试使用更多高级词汇。',
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'vocabularyScore': score >= 80 ? 82 : 72,
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'structure': score >= 80
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? '文章结构清晰，逻辑性强。'
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: '文章结构基本合理，建议加强段落之间的连接。',
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'structureScore': score >= 80 ? 86 : 76,
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};
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}
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Color _getDifficultyColor(WritingDifficulty difficulty) {
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switch (difficulty) {
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case WritingDifficulty.beginner:
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return const Color(0xFF4CAF50);
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case WritingDifficulty.elementary:
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return const Color(0xFF8BC34A);
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case WritingDifficulty.intermediate:
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return const Color(0xFFFF9800);
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case WritingDifficulty.upperIntermediate:
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return const Color(0xFFFF5722);
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case WritingDifficulty.advanced:
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return const Color(0xFFF44336);
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}
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}
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} |