[Projeto] Resolução do desafio


import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.green,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: Text('Flutter: Primeiro Passos'),
        ),
        body: ListView(
          children: [
            Quadrados(
              cor1: Colors.amber,
              cor2: Colors.green,
              cor3: Colors.grey,
            ),
            Quadrados(
              cor1: Colors.blue,
              cor2: Colors.pink,
              cor3: Colors.lightGreen,
            ),
            Quadrados(
              cor1: Colors.orangeAccent,
              cor2: Colors.blueGrey,
              cor3: Colors.redAccent,
            )
          ],
        ),
        floatingActionButton: FloatingActionButton(
          onPressed: () {},
        ),
      ),
    );
  }
}

class Quadrados extends StatelessWidget {
  final Color cor1;
  final Color cor2;
  final Color cor3;

  const Quadrados({required this.cor1, required this.cor2, required this.cor3, super.key});

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(8.0),
      child: Row(
        children: [
          Quadrados2(cor1),
          Quadrados2(cor2),
          Quadrados2(cor3),
        ],
      ),
    );
  }
}

class Quadrados2 extends StatelessWidget {
  final Color cor;

  const Quadrados2(this.cor, {super.key});

  @override
  Widget build(BuildContext context) {
    return Container(
      width: 80,
      height: 120,
      color: cor,
    );
  }
}