forked from lxm_flutter/FlutterUnit
75 lines
1.8 KiB
Dart
75 lines
1.8 KiB
Dart
import 'package:flutter/material.dart';
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/// create by 张风捷特烈 on 2020-03-22
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/// contact me by email 1981462002@qq.com
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/// 说明:
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// {
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// "widgetId": 107,
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// "name": '多个Spacer空间分配',
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// "priority": 2,
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// "subtitle":
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// "【flex】 : 剩余空间分配占比 【int】",
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// }
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class ManySpacer extends StatefulWidget {
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const ManySpacer({Key? key}) : super(key: key);
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@override
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_ManySpacerState createState() => _ManySpacerState();
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}
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class _ManySpacerState extends State<ManySpacer> {
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int _flexA = 1;
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int _flexB = 1;
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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>[
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_buildSliders(),
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Container(
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color: Colors.grey.withAlpha(33),
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child: Row(children: <Widget>[
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Spacer(flex: _flexA),
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Container(
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alignment: Alignment.center,
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width: 100,
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height: 50,
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color: Colors.red,
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),
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Spacer(flex: _flexB),
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Container(
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alignment: Alignment.center,
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width: 60,
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height: 50,
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color: Colors.blue,
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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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Widget _buildSliders() {
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return Column(
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children: <Widget>[
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Slider(
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divisions: 20,
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min: 1,
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max: 10,
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label: "左边flex: $_flexA",
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value: _flexA.toDouble(),
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onChanged: (v) => setState(() => _flexA = v.round())
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),
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Slider(
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divisions: 20,
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label: "右边flex: $_flexB",
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min: 1,
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max: 10,
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value: _flexB.toDouble(),
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onChanged: (v) => setState(() => _flexB = v.round())
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),
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],
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);
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}
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} |