forked from lxm_flutter/FlutterUnit
60 lines
1.8 KiB
Dart
60 lines
1.8 KiB
Dart
import 'package:flutter/cupertino.dart';
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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:
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// {
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// "widgetId": 351,
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// "name": "constrained属性测试",
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// "priority": 2,
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// "subtitle": "【constrained】 : 受约束的 【bool】",
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// }
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class InteractiveViewerDemo2 extends StatelessWidget {
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Widget build(BuildContext context) {
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const int _rowCount = 20;
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const int _columnCount = 4;
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return Container(
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width: 300,
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height: 200,
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child: InteractiveViewer(
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constrained: false,
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scaleEnabled: false,
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child: Table(
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columnWidths: <int, TableColumnWidth>{
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for (int column = 0; column < _columnCount; column += 1)
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column: const FixedColumnWidth(150.0),
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},
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children: buildRows(_rowCount, _columnCount),
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),
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),
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);
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}
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List<TableRow> buildRows(int rowCount, int columnCount) {
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return <TableRow>[
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for (int row = 0; row < rowCount; row += 1)
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TableRow(
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children: <Widget>[
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for (int column = 0; column < columnCount; column += 1)
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Container(
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margin: EdgeInsets.all(2),
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height: 50,
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alignment: Alignment.center,
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color: _colorful(row,column),
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child: Text('($row,$column)',style: TextStyle(fontSize: 20,color: Colors.white),),
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),
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],
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),
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];
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}
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final colors = [Colors.red,Colors.yellow,Colors.blue,Colors.green];
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final colors2 = [Colors.yellow,Colors.blue,Colors.green,Colors.red];
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_colorful(int row, int column ) => row % 2==0?colors[column]:colors2[column];
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}
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