import 'package:flutter/material.dart';

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

              class MyApp extends StatelessWidget {
                void _onButtonPressed() {
                  // Define the action you want to perform when the IconButton is pressed
                  print('IconButton pressed!');
                }

                @override
                Widget build(BuildContext context) {
                  return MaterialApp(
                    home: Scaffold(
                      appBar: AppBar(
                        title: Text('IconButton Example'),
                      ),
                      body: Center(
                        child: IconButton(
                          icon: Icon(Icons.add), // Icon to display
                          onPressed: _onButtonPressed, // Action to perform on press
                          tooltip: 'Add', // Optional tooltip
                        ),
                      ),
                    ),
                  );
                }
              }