unable to use ImageIcon to display image as icon flutter - flutter

Question

I have been trying out a bottom navigation bar which has a line indicator and am using this package
https://pub.dev/packages/custom_line_indicator_bottom_navbar
I am able to see icons if I use the predefined icons. But when I tried making my own image icon, it gives me the error
The argument type 'ImageIcon' can't be assigned to the parameter type 'IconData'.
Below is the code I am using to call ImageIcon:
CustomBottomBarItems(
label: 'Account',
icon: ImageIcon(
AssetImage("images/home.png"),
color: Color(0xFF3A5A98),
),
),
when the code is written like this, it shows no error:
CustomBottomBarItems(
label: 'Leaves', icon: Icons.calendar_today_outlined),
Can someone please help me resolve this issue? Thank you

Answer 1

CustomBottomBarItems's icon only take IconData. You can't pass widget here.
CustomBottomBarItems(
label: 'Account',
icon: Icons.ac_unit,
)
Or switch to different widget/package like BottomNavigationBar , google_nav_bar.
Follow this snippet, replace icon with the widget
class MyStatefulWidget extends StatefulWidget {
const MyStatefulWidget({Key? key}) : super(key: key);
#override
State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}
class _MyStatefulWidgetState extends State<MyStatefulWidget> {
int _selectedIndex = 0;
static const TextStyle optionStyle =
TextStyle(fontSize: 30, fontWeight: FontWeight.bold);
static const List<Widget> _widgetOptions = <Widget>[
Text(
'Index 0: Home',
style: optionStyle,
),
Text(
'Index 1: Business',
style: optionStyle,
),
Text(
'Index 2: School',
style: optionStyle,
),
];
void _onItemTapped(int index) {
setState(() {
_selectedIndex = index;
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('BottomNavigationBar Sample'),
),
body: Center(
child: _widgetOptions.elementAt(_selectedIndex),
),
bottomNavigationBar: Column(
mainAxisSize: MainAxisSize.min,
children: [
Row(
children: List.generate(
3,
(index) => Expanded(
child: Transform(
transform: Matrix4.translationValues(0, 5, 0),
child: Divider(
endIndent: 4,
indent: 4,
color: _selectedIndex == index
? Colors.red
: Colors.transparent,
),
),
)),
),
BottomNavigationBar(
showSelectedLabels: true,
items: <BottomNavigationBarItem>[
BottomNavigationBarItem(
icon: Icon(Icons.school),
label: 'Home',
),
BottomNavigationBarItem(
icon: Icon(Icons.business),
label: 'Business',
),
BottomNavigationBarItem(
icon: Icon(Icons.school),
label: 'School',
),
],
currentIndex: _selectedIndex,
selectedItemColor: Colors.amber[800],
onTap: _onItemTapped,
),
],
),
);
}
}

Answer 2

You may use BottomNavigationBar():
BottomNavigationBar(
items: [
BottomNavigationBarItem(
icon: Image.asset(
"assets/icons/icon",
height: 24.w,
width: 24.w,
),
label: 'label',
),
],
);