is it setState issue or is it correct ? about quizzler-flutter

[najib-mrh]

Same here, the SetState doesn't work for me ... i don't know why

Expanded(
child: Padding(
padding: EdgeInsets.all(15.0),
child: FlatButton(
textColor: Colors.white,
color: Colors.green,
child: Text(
'True',
style: TextStyle(
color: Colors.white,
fontSize: 20.0,
),
),
onPressed: () {
//The user picked true.
setState(() {
scoreKeeper.add( new
Icon(
Icons.check,
color: Colors.green,
),
);
});
},
),
),
),