enum SingingCharacter { lafayette, jefferson }
SingingCharacter _character = SingingCharacter.lafayette;
Widget build(BuildContext context) {
return Center(
child: Column(
children: <Widget>[
ListTile(
title: const Text('Lafayette'),
leading: Radio(
value: SingingCharacter.lafayette,
groupValue: _character,
onChanged: (SingingCharacter value) {
setState(() { _character = value; });
},
),
),
ListTile(
title: const Text('Thomas Jefferson'),
leading: Radio(
value: SingingCharacter.jefferson,
groupValue: _character,
onChanged: (SingingCharacter value) {
setState(() { _character = value; });
},
),
),
],
),
);
}
