flutter preferred size widget code example
Example 1: flutter stateful widget
class YellowBird extends StatefulWidget {
const YellowBird({ Key key }) : super(key: key);
@override
_YellowBirdState createState() => _YellowBirdState();
}
class _YellowBirdState extends State {
@override
Widget build(BuildContext context) {
return Container(color: const Color(0xFFFFE306));
}
}
Example 2: flutter widget destructor
//In a state of a statefull widget
@override
void dispose() {
_bloc.dispose();
super.dispose();
}