forked from lxm_flutter/FlutterUnit
58 lines
1.5 KiB
Dart
58 lines
1.5 KiB
Dart
import 'package:flutter/material.dart';
|
|
|
|
/// create by 张风捷特烈 on 2020-04-12
|
|
/// contact me by email 1981462002@qq.com
|
|
/// 说明:
|
|
// {
|
|
// "widgetId": 277,
|
|
// "name": '线性渐变着色',
|
|
// "priority": 2,
|
|
// "subtitle": "通过LinearGradient#createShader创建线性渐变着色器\n"
|
|
// "着色器相关知识详见【绘制专辑】",
|
|
// }
|
|
class LinearShaderMask extends StatelessWidget {
|
|
const LinearShaderMask({Key? key}) : super(key: key);
|
|
|
|
final List<Color> colors = const [Colors.red, Colors.yellow, Colors.blue];
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Wrap(
|
|
spacing: 20,
|
|
crossAxisAlignment: WrapCrossAlignment.center,
|
|
children: <Widget>[
|
|
ShaderMask(
|
|
shaderCallback: _buildShader,
|
|
child: Image.asset(
|
|
'assets/images/icon_head.webp',
|
|
height: 70,
|
|
width: 70,
|
|
),
|
|
),
|
|
ShaderMask(
|
|
shaderCallback: _buildShader,
|
|
child: const Text(
|
|
'张风捷特烈',
|
|
style: TextStyle(fontSize: 40, color: Colors.white),
|
|
),
|
|
),
|
|
ShaderMask(
|
|
shaderCallback: _buildShader,
|
|
child: Container(
|
|
height: 100,
|
|
color: Colors.white,
|
|
width: 50,
|
|
),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
|
|
Shader _buildShader(Rect bounds) => LinearGradient(
|
|
begin: Alignment.centerLeft,
|
|
end: Alignment.centerRight,
|
|
tileMode: TileMode.mirror,
|
|
colors: colors)
|
|
.createShader(bounds);
|
|
}
|