/Javascript/Flutter/Flutter stateful widgte non final field

Flutter stateful widgte non final field

class TestButton extends StatefulWidget {
  TestButton({this.passedcolor});
  final Color passedColor;
  @override
  _TestButtonState createState() => _TestButtonState();
}

class _TestButtonState extends State<TestButton> {
  Color color;

  @override
  initState(){
   color = widget.passedColor;
   super.initState()
  }

  @override
  Widget build(BuildContext context) {
    return RaisedButton(
      onPressed: () {
        setState(() {
          color = color == Colors.red ? Colors.blue : Colors.red;
        });
      },
      child: Icon(
        Icons.add,
        size: 80,
      ),
      color: color,
    );
  }
}

Source: stackoverflow.com

Similar codes

0 vote255 views1 answer
How ot make a background color faor evaluationbutton in flutter
Javascript Flutter
0 vote142 views1 answer
Flutter or react native
Javascript Flutter
0 vote143 views1 answer
Flutter betterplayer get aspect ratio
Javascript Flutter
7 votes252 views1 answer
React Native vs Flutter
Javascript Flutter
0 vote148 views1 answer
Run javascript in flutter
Javascript Flutter
1 vote273 views1 answer
Dropdown item from the list flutter
Javascript Flutter
0 vote141 views1 answer
Flutter local json storage
Javascript Flutter
2 votes260 views3 answers
Flutter parse json
Javascript Flutter
0 vote154 views1 answer
Flutter json serialization command with conflict resolve
Javascript Flutter
1 vote240 views1 answer
Flutter print json
Javascript Flutter