flutter_SanDev001

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Material App',
      home: Scaffold(
        appBar: AppBar(
          title: Text('Material App Bar'),
        ),
        body: Container(
          child: Column(
            mainAxisSize: MainAxisSize.max,
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceAround,
                children: [
                  Container(
                    color: Colors.amber,
                    width: 150,
                    height: 150,
                    child: FlutterLogo(size: 100),
                  ),
                  Container(
                    color: Colors.greenAccent,
                    width: 150,
                    height: 150,
                    child: FlutterLogo(size: 100),
                  ),
                ],
              ),
              Row(
                children: [
                  Expanded(
                    child: Container(
                      color: Colors.blueGrey,
                      width: 100,
                      height: 150,
                      margin: const EdgeInsets.all(10),
                    ),
                  ),
                ],
              ),
              Row(
                mainAxisSize: MainAxisSize.max,
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: [
                  Container(
                    color: Colors.red,
                    width: 150,
                    height: 150,
                    child: FlutterLogo(size: 100),
                  ),
                  Container(
                    color: Colors.blue,
                    width: 150,
                    height: 150,
                    child: FlutterLogo(size: 100),
                  ),
                ],
              )
            ],
          ),
        ),
      ),
    );
  }
}