f64355946c
Phase 0 — 共享组件: - EmptyStateWidget: 统一空状态 (icon + title + subtitle + CTA) - ErrorStateWidget: 统一错误状态 (message + retry) - SkeletonBox + SkeletonList: 统一骨架屏加载 (shimmer 动画) Phase 1 — Bug 修复: - 班级评论按 journalId 过滤，避免显示在错误日记卡片下 - moodCellColors key 修正: love/tired → angry/thinking - 日历非 CalendarLoaded 状态改为加载指示器 (不再 SizedBox.shrink) - 贴纸数统计改为 '--' 占位 (之前错误显示日记总数)
73 lines
2.1 KiB
Dart
73 lines
2.1 KiB
Dart
// 共享错误状态组件 — 统一所有页面的错误展示
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//
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// 使用: ErrorStateWidget(message: '加载失败', onRetry: () => ...)
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// 样式: 云朵图标 + 错误信息 + 重试按钮
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import 'package:flutter/material.dart';
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import '../core/constants/design_tokens.dart';
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import '../core/theme/app_radius.dart';
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/// 统一错误状态组件 — 图标 + 错误信息 + 可选重试按钮
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class ErrorStateWidget extends StatelessWidget {
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const ErrorStateWidget({
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super.key,
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required this.message,
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this.onRetry,
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this.icon = Icons.cloud_off_rounded,
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});
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/// 错误描述文字
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final String message;
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/// 重试回调（不传则不显示重试按钮）
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final VoidCallback? onRetry;
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/// 主图标（默认云朵离线图标）
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final IconData icon;
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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return Center(
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child: Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: DesignTokens.spacing24,
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vertical: DesignTokens.spacing40,
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(
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icon,
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size: 56,
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color: theme.colorScheme.onSurface.withValues(alpha: 0.25),
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),
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const SizedBox(height: DesignTokens.spacing16),
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Text(
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message,
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style: theme.textTheme.bodyMedium?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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),
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textAlign: TextAlign.center,
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),
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if (onRetry != null) ...[
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const SizedBox(height: DesignTokens.spacing20),
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TextButton.icon(
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onPressed: onRetry,
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icon: const Icon(Icons.refresh_rounded, size: 18),
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label: const Text('重试'),
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style: TextButton.styleFrom(
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shape: RoundedRectangleBorder(
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borderRadius: AppRadius.pillBorder,
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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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}
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}
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