Embrace these principles, and you’ll be well on your way to creating mobile apps that truly stand out in a crowded marketplace. Happy designing!

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          noscript: Text('Simple UI Layout'),
        ),
        body: Padding(
          padding: const EdgeInsets.all(16.0),
          child: Column(
            children: <Widget>[
              Container(
                padding: EdgeInsets.all(16),
                color: Colors.blue,
                child: Text(
                  'Header',
                  style: TextStyle(color: Colors.white, fontSize: 20),
                ),
              ),
              SizedBox(height: 20),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceAround,
                children: <Widget>[
                  Container(
                    width: 100,
                    height: 100,
                    color: Colors.red,
                    child: Center(
                      child: Text(
                        'Box 1',
                        style: TextStyle(color: Colors.white),
                      ),
                    ),
                  ),
                  Container(
                    width: 100,
                    height: 100,
                    color: Colors.green,
                    child: Center(
                      child: Text(
                        'Box 2',
                        style: TextStyle(color: Colors.white),
                      ),
                    ),
                  ),
                ],
              ),
              SizedBox(height: 20),
              Expanded(
                child: Container(
                  color: Colors.orange,
                  child: Center(
                    child: Text(
                      'Footer',
                      style: TextStyle(color: Colors.white, fontSize: 18),
                    ),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

If you're not prepared to die in battle, You will lose everything you've ever loved

As a programmer, learning from documentation is especially important because it can help you understand how to use new technologies, libraries, and frameworks effectively.