52 lines
1.4 KiB
Dart
52 lines
1.4 KiB
Dart
import 'package:flutter/material.dart';
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/// 各主页面共用的占位内容：一个图标、一句标题和可选说明。
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///
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/// 页面接上真实业务后可以直接替换掉。
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class EmptyState extends StatelessWidget {
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const EmptyState({
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required this.icon,
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required this.title,
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this.message,
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super.key,
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});
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final IconData icon;
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final String title;
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final String? message;
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@override
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Widget build(BuildContext context) {
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final ThemeData theme = Theme.of(context);
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final String? message = this.message;
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return Center(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 32),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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Icon(icon, size: 56, color: theme.colorScheme.primary),
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const SizedBox(height: 16),
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Text(
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title,
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style: theme.textTheme.titleMedium,
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textAlign: TextAlign.center,
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),
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if (message != null) ...<Widget>[
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const SizedBox(height: 8),
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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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],
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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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