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274
client/lib/features/reading/widgets/reading_article_card.dart
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274
client/lib/features/reading/widgets/reading_article_card.dart
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import 'package:flutter/material.dart';
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import '../models/reading_article.dart';
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/// 阅读文章卡片组件
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class ReadingArticleCard extends StatelessWidget {
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final ReadingArticle article;
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final VoidCallback? onTap;
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final VoidCallback? onFavorite;
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final bool showProgress;
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const ReadingArticleCard({
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super.key,
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required this.article,
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this.onTap,
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this.onFavorite,
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this.showProgress = false,
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});
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@override
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Widget build(BuildContext context) {
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return Card(
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margin: const EdgeInsets.only(bottom: 16),
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elevation: 2,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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child: InkWell(
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onTap: onTap,
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borderRadius: BorderRadius.circular(12),
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child: Padding(
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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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// 标题和收藏按钮
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Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Expanded(
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child: Text(
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article.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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color: Colors.black87,
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),
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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),
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),
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if (onFavorite != null)
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IconButton(
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icon: const Icon(
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Icons.favorite_border,
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color: Colors.grey,
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size: 20,
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),
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onPressed: onFavorite,
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padding: EdgeInsets.zero,
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constraints: const BoxConstraints(
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minWidth: 24,
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minHeight: 24,
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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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// 文章摘要
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if (article.content.isNotEmpty)
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Text(
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_getExcerpt(article.content),
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style: TextStyle(
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fontSize: 14,
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color: Colors.grey[600],
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height: 1.4,
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),
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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),
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const SizedBox(height: 12),
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// 标签行
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Row(
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children: [
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// 分类标签
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Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 8,
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vertical: 4,
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),
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decoration: BoxDecoration(
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color: const Color(0xFF2196F3).withOpacity(0.1),
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borderRadius: BorderRadius.circular(12),
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),
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child: Text(
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article.categoryLabel,
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style: const TextStyle(
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fontSize: 12,
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color: Color(0xFF2196F3),
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fontWeight: FontWeight.w500,
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),
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),
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),
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const SizedBox(width: 8),
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// 难度标签
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Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 8,
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vertical: 4,
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),
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decoration: BoxDecoration(
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color: _getDifficultyColor(article.difficulty).withOpacity(0.1),
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borderRadius: BorderRadius.circular(12),
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),
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child: Text(
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article.difficultyLabel,
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style: TextStyle(
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fontSize: 12,
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color: _getDifficultyColor(article.difficulty),
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fontWeight: FontWeight.w500,
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),
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),
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),
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const Spacer(),
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// 字数和阅读时间
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Text(
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'${article.wordCount}词',
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey[500],
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),
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),
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const SizedBox(width: 8),
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Icon(
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Icons.schedule,
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size: 12,
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color: Colors.grey[500],
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),
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const SizedBox(width: 2),
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Text(
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'${article.readingTime}分钟',
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey[500],
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),
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),
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],
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),
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// 进度条（如果需要显示）
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if (showProgress && article.isCompleted)
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Padding(
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padding: const EdgeInsets.only(top: 12),
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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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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(
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'已完成',
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style: TextStyle(
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fontSize: 12,
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color: Colors.grey[600],
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),
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),
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if (article.comprehensionScore != null)
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Text(
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'得分: ${article.comprehensionScore}分',
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style: TextStyle(
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fontSize: 12,
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color: _getScoreColor(article.comprehensionScore!.toInt()),
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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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const SizedBox(height: 4),
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LinearProgressIndicator(
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value: 1.0,
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backgroundColor: Colors.grey[200],
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valueColor: AlwaysStoppedAnimation<Color>(
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_getScoreColor((article.comprehensionScore ?? 0).toInt()),
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),
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),
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],
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),
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),
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// 标签（如果有）
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if (article.tags.isNotEmpty)
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Padding(
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padding: const EdgeInsets.only(top: 8),
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child: Wrap(
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spacing: 6,
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runSpacing: 4,
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children: article.tags.take(3).map((tag) {
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return Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 6,
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vertical: 2,
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),
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decoration: BoxDecoration(
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color: Colors.grey[100],
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borderRadius: BorderRadius.circular(8),
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),
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child: Text(
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'#$tag',
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style: TextStyle(
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fontSize: 10,
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color: Colors.grey[600],
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),
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),
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);
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}).toList(),
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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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/// 获取文章摘要
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String _getExcerpt(String content) {
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// 移除HTML标签和多余空白
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String cleanContent = content
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.replaceAll(RegExp(r'<[^>]*>'), '')
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.replaceAll(RegExp(r'\s+'), ' ')
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.trim();
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// 截取前100个字符作为摘要
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if (cleanContent.length <= 100) {
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return cleanContent;
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}
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return '${cleanContent.substring(0, 100)}...';
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}
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/// 获取难度颜色
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Color _getDifficultyColor(String difficulty) {
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switch (difficulty.toLowerCase()) {
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case 'a1':
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case 'a2':
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return Colors.green;
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case 'b1':
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case 'b2':
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return Colors.orange;
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case 'c1':
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case 'c2':
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return Colors.red;
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default:
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return Colors.grey;
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}
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}
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/// 获取分数颜色
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Color _getScoreColor(int score) {
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if (score >= 90) {
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return Colors.green;
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} else if (score >= 70) {
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return Colors.orange;
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} else {
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return Colors.red;
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}
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}
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}
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