forked from lxm_flutter/FlutterUnit
67 lines
2.2 KiB
Dart
67 lines
2.2 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020/7/22
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/// contact me by email 1981462002@qq.com
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/// 说明: 327 MaterialBannerTheme 主要用于为后代的MaterialBanner组件统一设置默认属性,也可以通过该组件获取默认MaterialBanner的属性。
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// {
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// "widgetId": 327,
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// "name": "MaterialBannerTheme基本使用",
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// "priority": 1,
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// "subtitle": "可指定MaterialBannerThemeData数据属性为【后代】的MaterialBanner组件设置默认样式，如背景色、边距、文字样式等。也可以用MaterialBannerTheme.of获取MaterialBanner的主题数据。",
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// }
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class MaterialBannerThemeDemo extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return MaterialBannerTheme(
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data: MaterialBannerTheme.of(context).copyWith(
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backgroundColor: Colors.purple,
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padding: EdgeInsetsDirectional.only(start: 16.0, top: 2.0,end: 2),
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leadingPadding:EdgeInsetsDirectional.only(end: 16.0) ,
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contentTextStyle: TextStyle(color: Colors.white),
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),
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child: _MaterialBannerDemo(),
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);
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}
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}
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class _MaterialBannerDemo extends StatelessWidget {
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final info =
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'A banner displays an important, succinct message, and provides actions for users to address. '
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'A user action is required for itto be dismissed.';
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@override
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Widget build(BuildContext context) {
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return Column(
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children: <Widget>[MaterialBanner(
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content: Text(info),
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leading: Icon(Icons.warning, color: Colors.yellow),
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actions: <Widget>[
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RaisedButton(
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color: Colors.white,
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onPressed: () {},
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child: Text(
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'I KNOW',
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style: TextStyle(
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color: Colors.purple,
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fontWeight: FontWeight.bold,
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fontSize: 14),
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),
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),
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RaisedButton(
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color: Colors.white,
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onPressed: () {},
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child: Text(
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'I IGNORE',
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style: TextStyle(
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color: Colors.purple,
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fontWeight: FontWeight.bold,
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fontSize: 14),
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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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} |