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sjk
2025-11-17 13:39:05 +08:00
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261
client/lib/features/home/widgets/daily_goal_card.dart Normal file
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import 'package:flutter/material.dart';
import '../../../core/theme/app_colors.dart';
import '../../../core/theme/app_text_styles.dart';
import '../../../core/theme/app_dimensions.dart';
/// 每日目标卡片组件
class DailyGoalCard extends StatelessWidget {
const DailyGoalCard({super.key});
@override
Widget build(BuildContext context) {
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
decoration: BoxDecoration(
color: AppColors.surface,
borderRadius: BorderRadius.circular(AppDimensions.radiusMd),
boxShadow: [
BoxShadow(
color: AppColors.shadow.withOpacity(0.1),
blurRadius: 8,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(
Icons.track_changes,
color: AppColors.primary,
size: 24,
),
const SizedBox(width: AppDimensions.spacingSm),
Text(
'今日目标进度',
style: AppTextStyles.titleMedium.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w600,
),
),
],
),
const SizedBox(height: AppDimensions.spacingMd),
// 单词学习目标
_buildGoalItem(
icon: Icons.book,
title: '单词学习',
current: 15,
target: 20,
unit: '个',
color: AppColors.primary,
),
const SizedBox(height: AppDimensions.spacingMd),
// 学习时长目标
_buildGoalItem(
icon: Icons.timer,
title: '学习时长',
current: 25,
target: 30,
unit: '分钟',
color: AppColors.secondary,
),
const SizedBox(height: AppDimensions.spacingMd),
// 练习题目标
_buildGoalItem(
icon: Icons.quiz,
title: '练习题',
current: 8,
target: 10,
unit: '道',
color: AppColors.tertiary,
),
const SizedBox(height: AppDimensions.spacingLg),
// 总体进度
_buildOverallProgress(),
],
),
);
}
/// 构建目标项
Widget _buildGoalItem({
required IconData icon,
required String title,
required int current,
required int target,
required String unit,
required Color color,
}) {
final progress = current / target;
final isCompleted = current >= target;
return Row(
children: [
Container(
width: 32,
height: 32,
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(8),
),
child: Icon(
icon,
color: color,
size: 18,
),
),
const SizedBox(width: AppDimensions.spacingMd),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
title,
style: AppTextStyles.bodyMedium.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w500,
),
),
Row(
children: [
Text(
'$current/$target $unit',
style: AppTextStyles.bodySmall.copyWith(
color: isCompleted ? AppColors.success : AppColors.onSurfaceVariant,
fontWeight: FontWeight.w500,
),
),
if (isCompleted) ...[
const SizedBox(width: AppDimensions.spacingXs),
Icon(
Icons.check_circle,
color: AppColors.success,
size: 16,
),
]
],
),
],
),
const SizedBox(height: AppDimensions.spacingXs),
// 进度条
Container(
height: 6,
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(3),
),
child: FractionallySizedBox(
alignment: Alignment.centerLeft,
widthFactor: progress.clamp(0.0, 1.0),
child: Container(
decoration: BoxDecoration(
color: isCompleted ? AppColors.success : color,
borderRadius: BorderRadius.circular(3),
),
),
),
),
],
),
),
],
);
}
/// 构建总体进度
Widget _buildOverallProgress() {
const totalProgress = 0.75; // 75% 完成
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [
AppColors.primary.withOpacity(0.1),
AppColors.secondary.withOpacity(0.1),
],
),
borderRadius: BorderRadius.circular(AppDimensions.radiusSm),
border: Border.all(
color: AppColors.primary.withOpacity(0.2),
width: 1,
),
),
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'今日完成度',
style: AppTextStyles.titleSmall.copyWith(
color: AppColors.primary,
fontWeight: FontWeight.w600,
),
),
Text(
'${(totalProgress * 100).toInt()}%',
style: AppTextStyles.titleSmall.copyWith(
color: AppColors.primary,
fontWeight: FontWeight.w700,
),
),
],
),
const SizedBox(height: AppDimensions.spacingSm),
// 总体进度条
Container(
height: 8,
decoration: BoxDecoration(
color: AppColors.primary.withOpacity(0.1),
borderRadius: BorderRadius.circular(4),
),
child: FractionallySizedBox(
alignment: Alignment.centerLeft,
widthFactor: totalProgress,
child: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [
AppColors.primary,
AppColors.secondary,
],
),
borderRadius: BorderRadius.circular(4),
),
),
),
),
const SizedBox(height: AppDimensions.spacingSm),
Text(
totalProgress >= 1.0
? '🎉 恭喜！今日目标已完成！'
: '继续加油，距离完成目标还有一点点！',
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
fontStyle: FontStyle.italic,
),
textAlign: TextAlign.center,
),
],
),
);
}
}

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client/lib/features/home/widgets/learning_stats_card.dart Normal file
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import 'package:flutter/material.dart';
import '../../../core/theme/app_colors.dart';
import '../../../core/theme/app_text_styles.dart';
import '../../../core/theme/app_dimensions.dart';
/// 学习统计卡片组件
class LearningStatsCard extends StatelessWidget {
const LearningStatsCard({super.key});
@override
Widget build(BuildContext context) {
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
decoration: BoxDecoration(
color: AppColors.surface,
borderRadius: BorderRadius.circular(AppDimensions.radiusMd),
boxShadow: [
BoxShadow(
color: AppColors.shadow.withOpacity(0.1),
blurRadius: 8,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(
Icons.analytics_outlined,
color: AppColors.primary,
size: 24,
),
const SizedBox(width: AppDimensions.spacingSm),
Text(
'本周学习数据',
style: AppTextStyles.titleMedium.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w600,
),
),
],
),
const SizedBox(height: AppDimensions.spacingLg),
// 统计数据网格
Row(
children: [
Expanded(
child: _buildStatItem(
title: '学习天数',
value: '5',
unit: '天',
icon: Icons.calendar_today,
color: AppColors.primary,
),
),
const SizedBox(width: AppDimensions.spacingMd),
Expanded(
child: _buildStatItem(
title: '学习时长',
value: '2.5',
unit: '小时',
icon: Icons.access_time,
color: AppColors.secondary,
),
),
],
),
const SizedBox(height: AppDimensions.spacingMd),
Row(
children: [
Expanded(
child: _buildStatItem(
title: '掌握单词',
value: '128',
unit: '个',
icon: Icons.psychology,
color: AppColors.success,
),
),
const SizedBox(width: AppDimensions.spacingMd),
Expanded(
child: _buildStatItem(
title: '练习题目',
value: '45',
unit: '道',
icon: Icons.quiz,
color: AppColors.warning,
),
),
],
),
const SizedBox(height: AppDimensions.spacingLg),
// 学习排名
_buildRankingSection(),
const SizedBox(height: AppDimensions.spacingLg),
// 成就徽章
_buildAchievementSection(),
],
),
);
}
/// 构建统计项
Widget _buildStatItem({
required String title,
required String value,
required String unit,
required IconData icon,
required Color color,
}) {
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
decoration: BoxDecoration(
color: color.withOpacity(0.05),
borderRadius: BorderRadius.circular(AppDimensions.radiusSm),
border: Border.all(
color: color.withOpacity(0.1),
width: 1,
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(
icon,
color: color,
size: 20,
),
const Spacer(),
Container(
padding: const EdgeInsets.symmetric(
horizontal: 6,
vertical: 2,
),
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(8),
),
child: Text(
'+12%',
style: AppTextStyles.labelSmall.copyWith(
color: color,
fontWeight: FontWeight.w600,
),
),
),
],
),
const SizedBox(height: AppDimensions.spacingSm),
RichText(
text: TextSpan(
children: [
TextSpan(
text: value,
style: AppTextStyles.headlineSmall.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w700,
),
),
TextSpan(
text: ' $unit',
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
),
),
],
),
),
const SizedBox(height: AppDimensions.spacingXs),
Text(
title,
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
),
),
],
),
);
}
/// 构建排名部分
Widget _buildRankingSection() {
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [
AppColors.primary.withOpacity(0.1),
AppColors.secondary.withOpacity(0.1),
],
),
borderRadius: BorderRadius.circular(AppDimensions.radiusSm),
border: Border.all(
color: AppColors.primary.withOpacity(0.2),
width: 1,
),
),
child: Row(
children: [
Container(
width: 40,
height: 40,
decoration: BoxDecoration(
color: AppColors.primary,
shape: BoxShape.circle,
),
child: Icon(
Icons.emoji_events,
color: AppColors.onPrimary,
size: 24,
),
),
const SizedBox(width: AppDimensions.spacingMd),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'学习排名',
style: AppTextStyles.titleSmall.copyWith(
color: AppColors.primary,
fontWeight: FontWeight.w600,
),
),
const SizedBox(height: 2),
Text(
'本周排名第 8 位，超越了 76% 的用户',
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
),
),
],
),
),
Text(
'#8',
style: AppTextStyles.headlineSmall.copyWith(
color: AppColors.primary,
fontWeight: FontWeight.w700,
),
),
],
),
);
}
/// 构建成就部分
Widget _buildAchievementSection() {
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'最新成就',
style: AppTextStyles.titleSmall.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w600,
),
),
const SizedBox(height: AppDimensions.spacingSm),
Row(
children: [
_buildAchievementBadge(
icon: Icons.local_fire_department,
title: '连续学习',
subtitle: '5天',
color: AppColors.error,
),
const SizedBox(width: AppDimensions.spacingSm),
_buildAchievementBadge(
icon: Icons.speed,
title: '快速学习',
subtitle: '今日',
color: AppColors.success,
),
const SizedBox(width: AppDimensions.spacingSm),
_buildAchievementBadge(
icon: Icons.star,
title: '完美答题',
subtitle: '昨日',
color: AppColors.warning,
),
],
),
],
);
}
/// 构建成就徽章
Widget _buildAchievementBadge({
required IconData icon,
required String title,
required String subtitle,
required Color color,
}) {
return Expanded(
child: Container(
padding: const EdgeInsets.all(AppDimensions.spacingSm),
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(AppDimensions.radiusXs),
border: Border.all(
color: color.withOpacity(0.2),
width: 1,
),
),
child: Column(
children: [
Icon(
icon,
color: color,
size: 20,
),
const SizedBox(height: AppDimensions.spacingXs),
Text(
title,
style: AppTextStyles.labelSmall.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w500,
),
textAlign: TextAlign.center,
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
Text(
subtitle,
style: AppTextStyles.labelSmall.copyWith(
color: AppColors.onSurfaceVariant,
fontSize: 10,
),
textAlign: TextAlign.center,
),
],
),
),
);
}
}

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client/lib/features/home/widgets/learning_trend_chart.dart Normal file
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import 'package:flutter/material.dart';
import 'package:fl_chart/fl_chart.dart';
/// 学习趋势图表
class LearningTrendChart extends StatelessWidget {
final List<Map<String, dynamic>> weeklyData;
const LearningTrendChart({
super.key,
required this.weeklyData,
});
@override
Widget build(BuildContext context) {
if (weeklyData.isEmpty) {
return const Center(
child: Text(
'暂无学习数据',
style: TextStyle(color: Colors.grey),
),
);
}
return Container(
height: 200,
padding: const EdgeInsets.all(16),
child: LineChart(
LineChartData(
gridData: FlGridData(
show: true,
drawVerticalLine: false,
horizontalInterval: 20,
getDrawingHorizontalLine: (value) {
return FlLine(
color: Colors.grey.withOpacity(0.1),
strokeWidth: 1,
);
},
),
titlesData: FlTitlesData(
show: true,
rightTitles: const AxisTitles(
sideTitles: SideTitles(showTitles: false),
),
topTitles: const AxisTitles(
sideTitles: SideTitles(showTitles: false),
),
bottomTitles: AxisTitles(
sideTitles: SideTitles(
showTitles: true,
reservedSize: 30,
interval: 1,
getTitlesWidget: (value, meta) {
final index = value.toInt();
if (index < 0 || index >= weeklyData.length) {
return const Text('');
}
final date = DateTime.parse(weeklyData[index]['date']);
final dayLabel = ['周一', '周二', '周三', '周四', '周五', '周六', '周日'][date.weekday - 1];
return Text(
dayLabel,
style: const TextStyle(
color: Colors.grey,
fontSize: 10,
),
);
},
),
),
leftTitles: AxisTitles(
sideTitles: SideTitles(
showTitles: true,
interval: 20,
reservedSize: 35,
getTitlesWidget: (value, meta) {
return Text(
value.toInt().toString(),
style: const TextStyle(
color: Colors.grey,
fontSize: 10,
),
);
},
),
),
),
borderData: FlBorderData(
show: true,
border: Border(
bottom: BorderSide(color: Colors.grey.withOpacity(0.2)),
left: BorderSide(color: Colors.grey.withOpacity(0.2)),
),
),
minX: 0,
maxX: (weeklyData.length - 1).toDouble(),
minY: 0,
maxY: _getMaxY(),
lineBarsData: [
LineChartBarData(
spots: _generateSpots(),
isCurved: true,
gradient: const LinearGradient(
colors: [Color(0xFF2196F3), Color(0xFF1976D2)],
),
barWidth: 3,
isStrokeCapRound: true,
dotData: FlDotData(
show: true,
getDotPainter: (spot, percent, barData, index) {
return FlDotCirclePainter(
radius: 4,
color: Colors.white,
strokeWidth: 2,
strokeColor: const Color(0xFF2196F3),
);
},
),
belowBarData: BarAreaData(
show: true,
gradient: LinearGradient(
colors: [
const Color(0xFF2196F3).withOpacity(0.2),
const Color(0xFF2196F3).withOpacity(0.05),
],
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
),
),
),
],
),
),
);
}
List<FlSpot> _generateSpots() {
return List.generate(
weeklyData.length,
(index) {
final wordsStudied = (weeklyData[index]['words_studied'] ?? 0) as int;
return FlSpot(index.toDouble(), wordsStudied.toDouble());
},
);
}
double _getMaxY() {
if (weeklyData.isEmpty) return 100;
final maxWords = weeklyData.map((data) => (data['words_studied'] ?? 0) as int).reduce((a, b) => a > b ? a : b);
// 向上取整到最近的10的倍数，并加20作为上边距
return ((maxWords / 10).ceil() * 10 + 20).toDouble();
}
}

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client/lib/features/home/widgets/progress_chart.dart Normal file
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import 'package:flutter/material.dart';
import '../../../core/theme/app_colors.dart';
import '../../../core/theme/app_text_styles.dart';
import '../../../core/theme/app_dimensions.dart';
/// 进度图表组件
class ProgressChart extends StatefulWidget {
const ProgressChart({super.key});
@override
State<ProgressChart> createState() => _ProgressChartState();
}
class _ProgressChartState extends State<ProgressChart>
with TickerProviderStateMixin {
late AnimationController _animationController;
late Animation<double> _animation;
// 模拟数据
final List<ChartData> _weeklyData = [
ChartData('周一', 45, AppColors.primary),
ChartData('周二', 60, AppColors.secondary),
ChartData('周三', 30, AppColors.tertiary),
ChartData('周四', 80, AppColors.success),
ChartData('周五', 55, AppColors.warning),
ChartData('周六', 70, AppColors.info),
ChartData('周日', 40, AppColors.error),
];
@override
void initState() {
super.initState();
_animationController = AnimationController(
duration: const Duration(milliseconds: 1500),
vsync: this,
);
_animation = Tween<double>(
begin: 0.0,
end: 1.0,
).animate(CurvedAnimation(
parent: _animationController,
curve: Curves.easeInOutCubic,
));
_animationController.forward();
}
@override
void dispose() {
_animationController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
decoration: BoxDecoration(
color: AppColors.surface,
borderRadius: BorderRadius.circular(AppDimensions.radiusMd),
boxShadow: [
BoxShadow(
color: AppColors.shadow.withOpacity(0.1),
blurRadius: 8,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
children: [
Icon(
Icons.trending_up,
color: AppColors.primary,
size: 24,
),
const SizedBox(width: AppDimensions.spacingSm),
Text(
'本周学习时长',
style: AppTextStyles.titleMedium.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w600,
),
),
],
),
// 时间选择器
Container(
padding: const EdgeInsets.symmetric(
horizontal: AppDimensions.spacingSm,
vertical: AppDimensions.spacingXs,
),
decoration: BoxDecoration(
color: AppColors.primary.withOpacity(0.1),
borderRadius: BorderRadius.circular(AppDimensions.radiusXs),
),
child: Text(
'本周',
style: AppTextStyles.labelMedium.copyWith(
color: AppColors.primary,
fontWeight: FontWeight.w500,
),
),
),
],
),
const SizedBox(height: AppDimensions.spacingLg),
// 总计信息
_buildSummaryInfo(),
const SizedBox(height: AppDimensions.spacingLg),
// 图表
SizedBox(
height: 200,
child: AnimatedBuilder(
animation: _animation,
builder: (context, child) {
return CustomPaint(
size: const Size(double.infinity, 200),
painter: BarChartPainter(
data: _weeklyData,
animationValue: _animation.value,
),
);
},
),
),
const SizedBox(height: AppDimensions.spacingMd),
// 图例
_buildLegend(),
],
),
);
}
/// 构建总计信息
Widget _buildSummaryInfo() {
final totalMinutes = _weeklyData.fold<int>(0, (sum, data) => sum + data.value);
final avgMinutes = totalMinutes / _weeklyData.length;
return Row(
children: [
Expanded(
child: _buildSummaryItem(
title: '总时长',
value: '${(totalMinutes / 60).toStringAsFixed(1)}',
unit: '小时',
color: AppColors.primary,
),
),
const SizedBox(width: AppDimensions.spacingMd),
Expanded(
child: _buildSummaryItem(
title: '日均时长',
value: avgMinutes.toStringAsFixed(0),
unit: '分钟',
color: AppColors.secondary,
),
),
const SizedBox(width: AppDimensions.spacingMd),
Expanded(
child: _buildSummaryItem(
title: '最长单日',
value: _weeklyData.map((e) => e.value).reduce((a, b) => a > b ? a : b).toString(),
unit: '分钟',
color: AppColors.success,
),
),
],
);
}
/// 构建总计项
Widget _buildSummaryItem({
required String title,
required String value,
required String unit,
required Color color,
}) {
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingSm),
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(AppDimensions.radiusXs),
border: Border.all(
color: color.withOpacity(0.2),
width: 1,
),
),
child: Column(
children: [
RichText(
text: TextSpan(
children: [
TextSpan(
text: value,
style: AppTextStyles.titleLarge.copyWith(
color: color,
fontWeight: FontWeight.w700,
),
),
TextSpan(
text: unit,
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
),
),
],
),
),
const SizedBox(height: AppDimensions.spacingXs),
Text(
title,
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
),
textAlign: TextAlign.center,
),
],
),
);
}
/// 构建图例
Widget _buildLegend() {
return Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
_buildLegendItem(
color: AppColors.primary,
label: '目标: 60分钟/天',
),
const SizedBox(width: AppDimensions.spacingMd),
_buildLegendItem(
color: AppColors.success,
label: '已完成',
),
],
);
}
/// 构建图例项
Widget _buildLegendItem({
required Color color,
required String label,
}) {
return Row(
mainAxisSize: MainAxisSize.min,
children: [
Container(
width: 12,
height: 12,
decoration: BoxDecoration(
color: color,
borderRadius: BorderRadius.circular(2),
),
),
const SizedBox(width: AppDimensions.spacingXs),
Text(
label,
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
),
),
],
);
}
}
/// 图表数据模型
class ChartData {
final String label;
final int value;
final Color color;
ChartData(this.label, this.value, this.color);
}
/// 柱状图绘制器
class BarChartPainter extends CustomPainter {
final List<ChartData> data;
final double animationValue;
BarChartPainter({
required this.data,
required this.animationValue,
});
@override
void paint(Canvas canvas, Size size) {
final paint = Paint();
final maxValue = data.map((e) => e.value).reduce((a, b) => a > b ? a : b).toDouble();
final barWidth = (size.width - (data.length + 1) * 16) / data.length;
final chartHeight = size.height - 40; // 留出底部标签空间
// 绘制网格线
_drawGridLines(canvas, size, chartHeight);
// 绘制柱状图
for (int i = 0; i < data.length; i++) {
final item = data[i];
final x = 16 + i * (barWidth + 16);
final barHeight = (item.value / maxValue) * chartHeight * animationValue;
final y = chartHeight - barHeight;
// 绘制柱子
paint.color = item.color.withOpacity(0.8);
final rect = RRect.fromRectAndRadius(
Rect.fromLTWH(x, y, barWidth, barHeight),
const Radius.circular(4),
);
canvas.drawRRect(rect, paint);
// 绘制数值标签
if (animationValue > 0.8) {
final textPainter = TextPainter(
text: TextSpan(
text: '${item.value}',
style: AppTextStyles.labelSmall.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w500,
),
),
textDirection: TextDirection.ltr,
);
textPainter.layout();
textPainter.paint(
canvas,
Offset(
x + (barWidth - textPainter.width) / 2,
y - textPainter.height - 4,
),
);
}
// 绘制底部标签
final labelPainter = TextPainter(
text: TextSpan(
text: item.label,
style: AppTextStyles.labelSmall.copyWith(
color: AppColors.onSurfaceVariant,
),
),
textDirection: TextDirection.ltr,
);
labelPainter.layout();
labelPainter.paint(
canvas,
Offset(
x + (barWidth - labelPainter.width) / 2,
chartHeight + 8,
),
);
}
}
/// 绘制网格线
void _drawGridLines(Canvas canvas, Size size, double chartHeight) {
final paint = Paint()
..color = AppColors.outline.withOpacity(0.1)
..strokeWidth = 1;
// 绘制水平网格线
for (int i = 0; i <= 4; i++) {
final y = chartHeight * i / 4;
canvas.drawLine(
Offset(0, y),
Offset(size.width, y),
paint,
);
}
}
@override
bool shouldRepaint(covariant CustomPainter oldDelegate) {
return true;
}
}

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import 'package:flutter/material.dart';
import '../../../core/theme/app_colors.dart';
import '../../../core/theme/app_text_styles.dart';
import '../../../core/theme/app_dimensions.dart';
/// 快捷操作网格组件
class QuickActionsGrid extends StatelessWidget {
const QuickActionsGrid({super.key});
@override
Widget build(BuildContext context) {
return GridView.count(
crossAxisCount: 2,
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
crossAxisSpacing: AppDimensions.spacingMd,
mainAxisSpacing: AppDimensions.spacingMd,
childAspectRatio: 1.2,
children: [
_buildActionCard(
context: context,
icon: Icons.book_outlined,
title: '单词学习',
subtitle: '智能背词',
color: AppColors.primary,
onTap: () => Navigator.pushNamed(context, '/vocabulary'),
),
_buildActionCard(
context: context,
icon: Icons.headphones_outlined,
title: '听力训练',
subtitle: '提升听力',
color: AppColors.secondary,
onTap: () => Navigator.pushNamed(context, '/listening'),
),
_buildActionCard(
context: context,
icon: Icons.article_outlined,
title: '阅读理解',
subtitle: '分级阅读',
color: AppColors.tertiary,
onTap: () => Navigator.pushNamed(context, '/reading'),
),
_buildActionCard(
context: context,
icon: Icons.edit_outlined,
title: '写作练习',
subtitle: 'AI批改',
color: AppColors.success,
onTap: () => Navigator.pushNamed(context, '/writing'),
),
_buildActionCard(
context: context,
icon: Icons.mic_outlined,
title: '口语练习',
subtitle: '发音评估',
color: AppColors.warning,
onTap: () => Navigator.pushNamed(context, '/speaking'),
),
_buildActionCard(
context: context,
icon: Icons.quiz_outlined,
title: '模拟考试',
subtitle: '综合测试',
color: AppColors.info,
onTap: () => Navigator.pushNamed(context, '/exam'),
),
],
);
}
/// 构建操作卡片
Widget _buildActionCard({
required BuildContext context,
required IconData icon,
required String title,
required String subtitle,
required Color color,
required VoidCallback onTap,
}) {
return GestureDetector(
onTap: onTap,
child: Container(
decoration: BoxDecoration(
color: AppColors.surface,
borderRadius: BorderRadius.circular(AppDimensions.radiusMd),
boxShadow: [
BoxShadow(
color: AppColors.shadow.withOpacity(0.1),
blurRadius: 8,
offset: const Offset(0, 2),
),
],
border: Border.all(
color: color.withOpacity(0.1),
width: 1,
),
),
child: Material(
color: Colors.transparent,
child: InkWell(
onTap: onTap,
borderRadius: BorderRadius.circular(AppDimensions.radiusMd),
child: Padding(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
// 图标容器
Container(
width: 48,
height: 48,
decoration: BoxDecoration(
color: color.withOpacity(0.1),
borderRadius: BorderRadius.circular(AppDimensions.radiusSm),
),
child: Icon(
icon,
color: color,
size: 28,
),
),
const SizedBox(height: AppDimensions.spacingMd),
// 标题
Text(
title,
style: AppTextStyles.titleSmall.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w600,
),
textAlign: TextAlign.center,
),
const SizedBox(height: AppDimensions.spacingXs),
// 副标题
Text(
subtitle,
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
),
textAlign: TextAlign.center,
),
],
),
),
),
),
),
);
}
}

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import 'package:flutter/material.dart';
import '../../../core/theme/app_colors.dart';
import '../../../core/theme/app_text_styles.dart';
import '../../../core/theme/app_dimensions.dart';
/// 最近活动卡片组件
class RecentActivitiesCard extends StatelessWidget {
const RecentActivitiesCard({super.key});
@override
Widget build(BuildContext context) {
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
decoration: BoxDecoration(
color: AppColors.surface,
borderRadius: BorderRadius.circular(AppDimensions.radiusMd),
boxShadow: [
BoxShadow(
color: AppColors.shadow.withOpacity(0.1),
blurRadius: 8,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(
Icons.history,
color: AppColors.primary,
size: 24,
),
const SizedBox(width: AppDimensions.spacingSm),
Text(
'最近活动',
style: AppTextStyles.titleMedium.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w600,
),
),
],
),
const SizedBox(height: AppDimensions.spacingMd),
// 活动列表
..._buildActivityList(),
],
),
);
}
/// 构建活动列表
List<Widget> _buildActivityList() {
final activities = [
ActivityItem(
icon: Icons.book_outlined,
title: '完成单词学习',
subtitle: '学习了20个新单词',
time: '2小时前',
color: AppColors.primary,
score: 95,
),
ActivityItem(
icon: Icons.headphones_outlined,
title: '听力练习',
subtitle: '完成日常英语对话练习',
time: '4小时前',
color: AppColors.secondary,
score: 88,
),
ActivityItem(
icon: Icons.quiz_outlined,
title: '语法测试',
subtitle: '时态练习测试',
time: '昨天',
color: AppColors.success,
score: 92,
),
ActivityItem(
icon: Icons.article_outlined,
title: '阅读理解',
subtitle: '科技类文章阅读',
time: '昨天',
color: AppColors.tertiary,
score: 85,
),
ActivityItem(
icon: Icons.mic_outlined,
title: '口语练习',
subtitle: '日常对话场景训练',
time: '2天前',
color: AppColors.warning,
score: 90,
),
];
return activities.asMap().entries.map((entry) {
final index = entry.key;
final activity = entry.value;
return Column(
children: [
_buildActivityItem(activity),
if (index < activities.length - 1)
const SizedBox(height: AppDimensions.spacingMd),
],
);
}).toList();
}
/// 构建活动项
Widget _buildActivityItem(ActivityItem activity) {
return Container(
padding: const EdgeInsets.all(AppDimensions.spacingMd),
decoration: BoxDecoration(
color: activity.color.withOpacity(0.05),
borderRadius: BorderRadius.circular(AppDimensions.radiusSm),
border: Border.all(
color: activity.color.withOpacity(0.1),
width: 1,
),
),
child: Row(
children: [
// 图标容器
Container(
width: 40,
height: 40,
decoration: BoxDecoration(
color: activity.color.withOpacity(0.1),
borderRadius: BorderRadius.circular(AppDimensions.radiusXs),
),
child: Icon(
activity.icon,
color: activity.color,
size: 20,
),
),
const SizedBox(width: AppDimensions.spacingMd),
// 活动信息
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
activity.title,
style: AppTextStyles.titleSmall.copyWith(
color: AppColors.onSurface,
fontWeight: FontWeight.w600,
),
),
if (activity.score != null)
Container(
padding: const EdgeInsets.symmetric(
horizontal: 8,
vertical: 2,
),
decoration: BoxDecoration(
color: _getScoreColor(activity.score!).withOpacity(0.1),
borderRadius: BorderRadius.circular(AppDimensions.radiusXs),
),
child: Text(
'${activity.score}分',
style: AppTextStyles.labelSmall.copyWith(
color: _getScoreColor(activity.score!),
fontWeight: FontWeight.w600,
),
),
),
],
),
const SizedBox(height: AppDimensions.spacingXs),
Text(
activity.subtitle,
style: AppTextStyles.bodySmall.copyWith(
color: AppColors.onSurfaceVariant,
),
),
const SizedBox(height: AppDimensions.spacingXs),
Row(
children: [
Icon(
Icons.access_time,
color: AppColors.onSurfaceVariant,
size: 14,
),
const SizedBox(width: AppDimensions.spacingXs),
Text(
activity.time,
style: AppTextStyles.labelSmall.copyWith(
color: AppColors.onSurfaceVariant,
),
),
],
),
],
),
),
// 箭头图标
Icon(
Icons.chevron_right,
color: AppColors.onSurfaceVariant,
size: 20,
),
],
),
);
}
/// 获取分数颜色
Color _getScoreColor(int score) {
if (score >= 90) {
return AppColors.success;
} else if (score >= 80) {
return AppColors.warning;
} else if (score >= 70) {
return AppColors.info;
} else {
return AppColors.error;
}
}
}
/// 活动项数据模型
class ActivityItem {
final IconData icon;
final String title;
final String subtitle;
final String time;
final Color color;
final int? score;
ActivityItem({
required this.icon,
required this.title,
required this.subtitle,
required this.time,
required this.color,
this.score,
});
}