/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 vote374 views1 answer
Remove duplicates in json in flutter
Javascript Flutter
0 vote378 views1 answer
Flutter save json to file
Javascript Flutter
0 vote303 views1 answer
Can we send raw json in get method in flutter
Javascript Flutter
2 votes367 views1 answer
Flutter convert json string to json
Javascript Flutter
7 votes329 views1 answer
React Native vs Flutter
Javascript Flutter
20 votes324 views5 answers
Get flutter
Javascript Flutter
3 votes362 views1 answer
Read json file flutter
Javascript Flutter
1 vote345 views1 answer
Text space between letters flutter
Javascript Flutter
0 vote314 views2 answers
Interact with flutter and javascript
Javascript Flutter
2 votes351 views3 answers
Flutter parse json
Javascript Flutter