examples/simple_counter/lib/counter.dart

import 'package:flutter/material.dart';

class CounterPage extends StatefulWidget {
  const CounterPage({super.key});

  @override
  State<CounterPage> createState() => _CounterPageState();
}

class _CounterPageState extends State<CounterPage> {
  int _count = 0;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Counter'),
      ),
      body: Center(
        child: Row(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Image.asset('assets/icon.png', width: 48, height: 48),
            const SizedBox(width: 16),
            Text(
              '$_count',
              style: const TextStyle(fontSize: 48),
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          setState(() {
            _count++;
          });
          print('Pressed $_count times');
        },
        child: const Icon(Icons.add),
      ),
    );
  }
}