How to fix IconButton onPressed property?

Question

Hello my button's onPressed function is giving error (null is working). Any idea why? Below is the code. The first image asset is wrapped inside an IconButton and I wrote its onPressed property as "onPressed: () {}, thanks " but it is giving Dart error.

import 'package:flutter/material.dart';

class MyQuickModePages extends StatelessWidget {
  const MyQuickModePages({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Column(
      mainAxisSize: MainAxisSize.min,
      children: const <Widget>[
        Expanded(
          child: Padding(
            padding: EdgeInsets.all(10.0),
            child: IconButton(iconSize: 200,
              icon:  Image(
                  image: AssetImage("assets/images/quickmode/quickmode_q3.jpeg",),
              ),
              onPressed: () {},
            ),
            ),
          ),
        Expanded(child: Padding(
          padding: EdgeInsets.all(10.0),
          child: Image(
            image: AssetImage("assets/images/quickmode/quickmode_q5.jpeg",),
          ),
        ),
        )
      ],
    );
  }
}

Answer 1

Remove const keyword from here:

children: const <Widget>

Answer 2

Inside your code, remove const

children: const <Widget> -----> children: <Widget>

Now onPressed: () {} works just fine