/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 vote231 views2 answers
How to remove &quot in json in "flutter"
Javascript Flutter
2 votes285 views1 answer
Flutter convert json string to json
Javascript Flutter
0 vote192 views1 answer
Flutter access json object inside object
Javascript Flutter
1 vote262 views1 answer
How to use javascript in flutter
Javascript Flutter
0 vote216 views2 answers
Popup alert in flutter
Javascript Flutter
0 vote230 views1 answer
Flutter betterplayer get aspect ratio
Javascript Flutter
0 vote284 views1 answer
Flutter save json to file
Javascript Flutter
19 votes245 views4 answers
Flutter http request
Javascript Flutter
2 votes263 views3 answers
Flutter parse json
Javascript Flutter
-1 vote242 views1 answer
Constructoers in flutter
Javascript Flutter