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

To use recordObject in _RecordPageState, you have to just write widget.objectname like below

class _RecordPageState extends State<RecordPage> {  @override  Widget build(BuildContext context) {   .....   widget.recordObject   .....  }}

Full Example

You don't need to pass parameters to State using it's constructor.You can easily access these using widget.myField.

class MyRecord extends StatefulWidget {  final String recordName;  const MyRecord(this.recordName);  @override  MyRecordState createState() => MyRecordState();}class MyRecordState extends State<MyRecord> {  @override  Widget build(BuildContext context) {    return Text(widget.recordName); // Here you direct access using widget  }}

Pass your data when you Navigate screen :

 Navigator.of(context).push(MaterialPageRoute(builder: (context) => MyRecord("WonderWorld")));

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<RecordPage> {  Record  recordObject _RecordPageState(this. recordObject);  //constructor  @override  Widget build(BuildContext context) {.    //closure has access   //.....  }}