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Demonstrates the Row and Column Widgets and their alignment properties.
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import 'package:flutter/foundation.dart'; | |
import 'package:flutter/material.dart'; | |
void main() => runApp(MyApp()); | |
class MyApp extends StatefulWidget { | |
MyApp({Key key}) : super(key: key); | |
State createState() => _MyAppState(); | |
} | |
class _MyAppState extends State<MyApp> { | |
@override | |
Widget build(BuildContext context) { | |
return MaterialApp( | |
debugShowCheckedModeBanner: false, | |
home: Scaffold( | |
appBar: AppBar( | |
title: Text('Sample Code'), | |
), | |
body: Container(color: Colors.yellow, child: _body(row: true)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.start, | |
// crossAxisAlignment: CrossAxisAlignment.start, | |
// mainAxisSize: MainAxisSize.min)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.start, | |
// crossAxisAlignment: CrossAxisAlignment.start, | |
// mainAxisSize: MainAxisSize.max)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.end, | |
// crossAxisAlignment: CrossAxisAlignment.start, | |
// mainAxisSize: MainAxisSize.max)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.center, | |
// crossAxisAlignment: CrossAxisAlignment.start, | |
// mainAxisSize: MainAxisSize.max)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.spaceBetween, | |
// crossAxisAlignment: CrossAxisAlignment.start, | |
// mainAxisSize: MainAxisSize.max)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.spaceAround, | |
// crossAxisAlignment: CrossAxisAlignment.start, | |
// mainAxisSize: MainAxisSize.max)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.spaceEvenly, | |
// crossAxisAlignment: CrossAxisAlignment.start, | |
// mainAxisSize: MainAxisSize.max)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.spaceEvenly, | |
// crossAxisAlignment: CrossAxisAlignment.end, | |
// mainAxisSize: MainAxisSize.max)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.spaceEvenly, | |
// crossAxisAlignment: CrossAxisAlignment.center, | |
// mainAxisSize: MainAxisSize.max)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.spaceEvenly, | |
// crossAxisAlignment: CrossAxisAlignment.stretch, | |
// mainAxisSize: MainAxisSize.min)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.spaceEvenly, | |
// crossAxisAlignment: CrossAxisAlignment.baseline, | |
// mainAxisSize: MainAxisSize.min)), | |
// body: Container( | |
// color: Colors.yellow, | |
// child: _body( | |
// row: true, | |
// mainAxisAlignment: MainAxisAlignment.spaceEvenly, | |
// crossAxisAlignment: CrossAxisAlignment.baseline, | |
// textBaseline: TextBaseline.alphabetic, | |
// mainAxisSize: MainAxisSize.min)), | |
), | |
); | |
} | |
Widget _body({ | |
bool row = true, | |
MainAxisAlignment mainAxisAlignment = MainAxisAlignment.start, | |
CrossAxisAlignment crossAxisAlignment = CrossAxisAlignment.start, | |
TextBaseline textBaseline = TextBaseline.ideographic, | |
MainAxisSize mainAxisSize = MainAxisSize.min, | |
}) { | |
if (row) { | |
return Row( | |
mainAxisAlignment: mainAxisAlignment, | |
crossAxisAlignment: crossAxisAlignment, | |
textBaseline: textBaseline, | |
mainAxisSize: mainAxisSize, | |
children: [ | |
Icon(Icons.star, size: 50.0), | |
Icon(Icons.star, size: 100.0), | |
Icon(Icons.star, size: 50.0), | |
Text("A", style: TextStyle(fontSize: 50.0)), | |
Text("B", style: TextStyle(fontSize: 100.0)), | |
Text("C", style: TextStyle(fontSize: 50.0)), | |
], | |
); | |
} else { | |
return Column( | |
mainAxisAlignment: MainAxisAlignment.start, | |
crossAxisAlignment: CrossAxisAlignment.start, | |
mainAxisSize: MainAxisSize.min, | |
children: [ | |
Icon(Icons.star, size: 50.0), | |
Icon(Icons.star, size: 100.0), | |
Icon(Icons.star, size: 50.0), | |
Text("A", style: TextStyle(fontSize: 50.0)), | |
Text("B", style: TextStyle(fontSize: 100.0)), | |
Text("C", style: TextStyle(fontSize: 50.0)), | |
], | |
); | |
} | |
} | |
} |
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