PopupMenuButton not able to change icon when clicked - flutter

Question

I'm using the PopupMenuButton in flutter for a web based project and trying to change the popupmenubutton icon when it's clicked. So in its initial state it would show Icons.menu and when opened, it could would Icons.close and once clicked again revert back to Icons.menu.
I have tried onSelected which does not get called at all when clicked in an attempt to change the icon.
I have used an icon or a child IconButton per the docs and used onPressed to setState however that doesn't work either.
Currently the elevated button when clicked, does not show the dropdown menu, nor does it update the icon.
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({super.key});
static const String _title = 'Flutter Code Sample';
#override
Widget build(BuildContext context) {
return const MaterialApp(
title: _title,
home: MyStatefulWidget(),
);
}
}
class MyStatefulWidget extends StatefulWidget {
const MyStatefulWidget({super.key});
#override
State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}
class _MyStatefulWidgetState extends State<MyStatefulWidget> {
bool menuClicked = true;
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
actions: <Widget>[
PointerInterceptor(
intercepting: true,
child: PopupMenuButton<String>(
offset: const Offset(10.0, 50.0),
color: Colors.black,
child: ElevatedButton(
onPressed: () {
setState(() {
menuClicked = !menuClicked;
});
},
child: Icon((menuClicked = true)
? Icons.menu
: Icons.close),),
itemBuilder: (BuildContext context) =>
<PopupMenuEntry<String>>[
PopupMenuItem(
value: "close",
child: ListTile(
leading: Icon(Icons.close, color: Colors.white),
title: Text('Close',
style: TextStyle(color: Colors.white)),
onTap: () {
Navigator.pop(context);
}),
),
],
),
],
),
),
body: Center(
child: Text('test'),
),
);
}
}

Answer 1

Equal sign will be ==
Icon((menuClicked == true) ? Icons.menu : Icons.close),
or you can do
Icon(menuClicked ? Icons.menu : Icons.close),
class MyStatefulWidget extends StatefulWidget {
const MyStatefulWidget({super.key});
#override
State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}
class _MyStatefulWidgetState extends State<MyStatefulWidget> {
bool menuClicked = false;
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
actions: <Widget>[
GestureDetector(
behavior: HitTestBehavior.translucent,
onPanDown: (details) {
setState(() {
menuClicked = true;
});
},
child: PopupMenuButton<String>(
offset: const Offset(10.0, 50.0),
color: Colors.black,
onSelected: (value) {
setState(() {
menuClicked = false;
});
},
padding: EdgeInsets.zero,
onCanceled: () {
setState(() {
menuClicked = false;
});
},
child: Icon(menuClicked ? Icons.close : Icons.menu),
itemBuilder: (BuildContext context) => [
PopupMenuItem(
value: "close",
child: ListTile(
leading: Icon(Icons.close, color: Colors.white),
title: Text(
'Close',
style: TextStyle(color: Colors.white),
),
onTap: () {
Navigator.pop(context);
},
),
),
],
),
),
],
),
);
}
}