Flutter stateful widget

Flutter constructor stateful widget

flutter run --no-sound-null-safety

Flutter stateful widget

class YellowBird extends StatefulWidget {
  const YellowBird({ Key key }) : super(key: key);

  @override
  _YellowBirdState createState() => _YellowBirdState();
}

class _YellowBirdState extends State<YellowBird> {
  @override
  Widget build(BuildContext context) {
    return Container(color: const Color(0xFFFFE306));
  }
}

Source: api.flutter.dev

Similar codes

0 vote128 views1 answer
How to subtract he height of appbar in flutter
Dart
0 vote88 views1 answer
How to pass url parameter inside a webview flutter
Dart
4 votes130 views1 answer
Dart setters
Dart
1 vote141 views1 answer
Open popupbutton onclick in flutter
Dart
0 vote137 views1 answer
At this point the state of the widget element tree is no longer stable. flutter
Dart
3 votes140 views2 answers
Flutter circularprogressindicator
Dart
1 vote116 views1 answer
Dart super
Dart
-2 votes78 views1 answer
Flutter column width
Dart
2 votes122 views1 answer
Flutter snackbar circular shape rounded circle
Dart
0 vote126 views1 answer
Flutter encode
Dart