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86 lines
2.6 KiB
Dart
86 lines
2.6 KiB
Dart
/**
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* Created with Android Studio.
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* User: 一晟
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* Date: 2018/11/22
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* Time: 上午12:03
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* email: zhu.yan@alibaba-inc.com
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* tartget: RawMaterialButton 的示例
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*/
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import 'dart:math';
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import 'package:flutter/material.dart';
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/*
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* RawMaterialButton 默认按钮的实例
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* isDisabled:是否是禁用，isDisabled 默认为true
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* */
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class RawMaterialButtonDefault extends StatelessWidget {
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final bool isDisabled;
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const RawMaterialButtonDefault([ this.isDisabled = true])
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: assert(isDisabled != null),
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super();
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@override
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Widget build(BuildContext context) {
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return RawMaterialButton(
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// 文本内容
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child: const Text('默认按钮', semanticsLabel: 'FLAT BUTTON 1'),
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onPressed: isDisabled ? () {} : null);
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}
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}
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/*
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* RawMaterialButton 自定义的实例
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* */
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class RawMaterialButtonCustom extends StatelessWidget {
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final String txt;
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final Color color;
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final ShapeBorder shape;
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final VoidCallback onPressed;
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const RawMaterialButtonCustom(
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[ this.txt = '自定义按钮',
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this.color = Colors.blueAccent,
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this.shape,
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this.onPressed])
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: super();
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@override
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Widget build(BuildContext context) {
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final _onPressed = onPressed;
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final _fontSize = (Random.secure().nextInt(10)+15).toDouble();
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return RawMaterialButton(
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// 使用Material.textStyle为按钮的子项定义默认文本样式。
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textStyle:TextStyle(color: _randomColor(),fontSize: _fontSize),
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// 定义形状和高程的动画更改的持续时间
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animationDuration:Duration(seconds: 1),
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// 文本内容
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child: Text(txt, semanticsLabel: 'FLAT BUTTON 2'),
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// 高亮时的背景色
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highlightColor: Colors.yellow,
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// 按钮内部,墨汁飞溅的颜色,点击按钮时的渐变背景色，当你不设置高亮背景时才会看的更清楚
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splashColor: _randomColor(),
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// 抗锯齿能力,抗锯齿等级依次递增,none（默认),hardEdge,antiAliasWithSaveLayer,antiAlias
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clipBehavior: Clip.antiAlias,
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padding: EdgeInsets.only(bottom: 5.0, top: 5.0, left: 30.0, right: 30.0),
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//高亮时候的阴影
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highlightElevation: 10.0,
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// 按钮材质的形状
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// shape: shape,
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// RawMaterialButton 的点击事件
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onPressed: () {
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// Perform some action
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if (_onPressed is VoidCallback) {
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_onPressed();
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}
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});
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}
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}
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Color _randomColor() {
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var red = Random.secure().nextInt(255);
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var greed = Random.secure().nextInt(255);
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var blue = Random.secure().nextInt(255);
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return Color.fromARGB(255, red, greed, blue);
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}
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