Flutter-Button with icon onselected - flutter

Question

I am new to flutter. I use group button to build such a screen, what kind of widget can i use? I need it to appear when the button is selected and disappear when it is not selected.
I tried to do it with a group button but can’t add an icon there, i also tried to do it using the chip widget, but there the close icon only works on clicking on it.

Answer 1

you can use InputChip widget like this
import 'package:flutter/material.dart';
void main() => runApp(const ChipApp());
class ChipApp extends StatelessWidget {
const ChipApp({super.key});
#override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(
colorSchemeSeed: const Color(0xff6750a4), useMaterial3: true),
home: const InputChipExample(),
);
}
}
class InputChipExample extends StatefulWidget {
const InputChipExample({super.key});
#override
State<InputChipExample> createState() => _InputChipExampleState();
}
class _InputChipExampleState extends State<InputChipExample> {
int inputs = 3;
int? selectedIndex;
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('InputChip Sample'),
),
body: Center(
child: Column(
mainAxisSize: MainAxisSize.min,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Wrap(
alignment: WrapAlignment.center,
spacing: 5.0,
children: List<Widget>.generate(
inputs,
(int index) {
return InputChip(
label: Text('Person ${index + 1}'),
selected: selectedIndex == index,
onSelected: (bool selected) {
setState(() {
if (selectedIndex == index) {
selectedIndex = null;
} else {
selectedIndex = index;
}
});
},
onDeleted: () {
setState(() {
inputs = inputs - 1;
});
},
);
},
).toList(),
),
const SizedBox(height: 10),
ElevatedButton(
onPressed: () {
setState(() {
inputs = 3;
});
},
child: const Text('Reset'),
)
],
),
),
);
}
}
check the details in the official documentation