forked from lxm_flutter/FlutterUnit
56 lines
1.3 KiB
Dart
56 lines
1.3 KiB
Dart
import 'package:flutter/material.dart';
|
||
/// create by 张风捷特烈 on 2020-03-30
|
||
/// contact me by email 1981462002@qq.com
|
||
/// 说明:
|
||
// {
|
||
// "widgetId": 97,
|
||
// "name": 'Stack和Positioned结合使用',
|
||
// "priority": 2,
|
||
// "subtitle":
|
||
// "Positioned组件只能用与Stack中，可以指定左上右下的距离对某个组件进行位置精确安放。",
|
||
// }
|
||
class PositionedStack extends StatelessWidget {
|
||
const PositionedStack({Key? key}) : super(key: key);
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
Widget yellowBox = Container(
|
||
color: Colors.yellow,
|
||
height: 100,
|
||
width: 100,
|
||
);
|
||
|
||
Widget redBox = Container(
|
||
color: Colors.red,
|
||
height: 90,
|
||
width: 90,
|
||
);
|
||
|
||
Widget greenBox = Container(
|
||
color: Colors.green,
|
||
height: 80,
|
||
width: 80,
|
||
);
|
||
|
||
Widget cyanBox = Container(
|
||
color: Colors.cyanAccent,
|
||
height: 70,
|
||
width: 70,
|
||
);
|
||
|
||
return Container(
|
||
width: 200,
|
||
height: 120,
|
||
color: Colors.grey.withAlpha(33),
|
||
child: Stack(
|
||
children: <Widget>[yellowBox, redBox, greenBox,
|
||
Positioned(
|
||
child: cyanBox,
|
||
bottom: 10,
|
||
right: 10,
|
||
)
|
||
],
|
||
));
|
||
}
|
||
}
|