How to set radio buttons in bottomsheet flutter - flutter

Question

I want to make a design in which by clicking on the bottom sheet it will show radio buttons. When I select the radio button it will open the date picker. Below is my code when I click on the radio button it is not selecting the radio button. I am new in flutter so can someone helps me find the mistake in the code?
import 'package:flutter/material.dart';
import 'BottomSheetWidget.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(title: 'Flutter Demo', home: HomeView());
}
}
class HomeView extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
floatingActionButton: MyFloatingButton(),
);
}
}
class MyFloatingButton extends StatefulWidget {
#override
_MyFloatingButtonState createState() => _MyFloatingButtonState();
}
class _MyFloatingButtonState extends State<MyFloatingButton> {
bool _show = true;
#override
Widget build(BuildContext context) {
int _radioValue = 0;
/* var sheetController = showBottomSheet(
context: context,
builder: (context) => BottomSheetWidget());*/
void _handleRadioValueChange(int value) {
setState(() {
_radioValue = value;
});
print("first"+value.toString()+"radiovalue" +_radioValue.toString());
}
return Container(
margin: EdgeInsets.all(10.0),
child: new Wrap(
children: <Widget>[
Center(
child: Container(
height: 3.0, width: 40.0, color: Color(0xFF32335C))),
SizedBox(
height: 10.0,
),
new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
new Radio(
value: 0,
groupValue: _radioValue,
onChanged: (value) {setState(() {
_radioValue=value;
});
print("radiofirst"+value.toString()+"radiovalue" +_radioValue.toString());
_handleRadioValueChange(value);
},
),
new Text(
'Single Date',
style: new TextStyle(fontSize: 16.0),
),
new Radio(
value: 1,
groupValue: _radioValue,
onChanged: (value) {setState(() {
_radioValue=value;
});
print("radiosecond "+value.toString()+"radiovalue " +_radioValue.toString());
_handleRadioValueChange(value);
},
),
new Text(
'Dual Date',
style: new TextStyle(
fontSize: 16.0,
),
),
],
),
],
),
);
}
}

Answer 1

You can copy paste run full code below
You can move out int _radioValue = 0; and _handleRadioValueChange from build
working demo
full code
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(title: 'Flutter Demo', home: HomeView());
}
}
class HomeView extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
floatingActionButton: MyFloatingButton(),
);
}
}
class MyFloatingButton extends StatefulWidget {
#override
_MyFloatingButtonState createState() => _MyFloatingButtonState();
}
class _MyFloatingButtonState extends State<MyFloatingButton> {
bool _show = true;
int _radioValue = 0;
/* var sheetController = showBottomSheet(
context: context,
builder: (context) => BottomSheetWidget());*/
void _handleRadioValueChange(int value) {
setState(() {
_radioValue = value;
});
print("first" + value.toString() + "radiovalue" + _radioValue.toString());
}
#override
Widget build(BuildContext context) {
return Container(
margin: EdgeInsets.all(10.0),
child: Wrap(
children: <Widget>[
Center(
child: Container(
height: 3.0, width: 40.0, color: Color(0xFF32335C))),
SizedBox(
height: 10.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Radio(
value: 0,
groupValue: _radioValue,
onChanged: (value) {
setState(() {
_radioValue = value;
});
print("radiofirst" +
value.toString() +
"radiovalue" +
_radioValue.toString());
_handleRadioValueChange(value);
},
),
Text(
'Single Date',
style: TextStyle(fontSize: 16.0),
),
Radio(
value: 1,
groupValue: _radioValue,
onChanged: (value) {
setState(() {
_radioValue = value;
});
print("radiosecond " +
value.toString() +
"radiovalue " +
_radioValue.toString());
_handleRadioValueChange(value);
},
),
Text(
'Dual Date',
style: TextStyle(
fontSize: 16.0,
),
),
],
),
],
),
);
}
}