浅念
64 lines
1.9 KiB
Dart
64 lines
1.9 KiB
Dart
/// 错误态（UI-01）：错误图标 + 说明 + 重试按钮（主强调）。
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///
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/// 用于加载失败等需要用户处理的场景。与 EmptyState 的区别：错误态有
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/// 明确的重试动作（主按钮 + 刷新图标），文案为错误色语义；空态无重试。
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/// 重试文案来自语言资源（[AppLocalizations.retry]）。
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library;
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import 'package:flutter/material.dart';
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import '../../l10n/app_localizations.dart';
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import '../tokens.dart';
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/// 错误态视图。
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class ErrorState extends StatelessWidget {
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const ErrorState({
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required this.message,
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required this.onRetry,
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this.icon,
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super.key,
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});
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/// 错误说明（调用方本地化，如错误码映射文案）。
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final String message;
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/// 重试回调。
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final VoidCallback onRetry;
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/// 覆盖主题图标（默认 [Icons.cloud_off]，加载失败语义）。
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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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final errorColor = theme.brightness == Brightness.light
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? kColorError
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: kColorErrorDark;
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return Center(
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child: Padding(
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padding: const EdgeInsets.all(kSpace24),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(icon ?? Icons.cloud_off, size: 48, color: errorColor),
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const SizedBox(height: kSpace12),
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Text(
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message,
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textAlign: TextAlign.center,
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style: theme.textTheme.bodyLarge?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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),
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),
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const SizedBox(height: kSpace16),
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FilledButton.icon(
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onPressed: onRetry,
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icon: const Icon(Icons.refresh),
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label: Text(AppLocalizations.of(context).retry),
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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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