Passing data to StatefulWidget and accessing it in it's state in Flutter

Question

I have 2 screens in my Flutter app: list of records and screen for creating and editing records.

If I pass object to second screen that means I am going to edit this

Answer 1

class RecordPage extends StatefulWidget {
  final Record recordObject;

  RecordPage({Key key, @required this.recordObject}) : super(key: key);

  @override
  _RecordPageState createState() => new _RecordPageState(recordObject);
}

class _RecordPageState extends State {
  Record  recordObject
 _RecordPageState(this. recordObject);  //constructor
  @override
  Widget build(BuildContext context) {.    //closure has access
   //.....
  }
}