@override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Welcome to WesterAf'),
        backgroundColor: Colors.lightBlueAccent,
        elevation: 0.0,
        iconTheme: new IconThemeData(color: Colors.lightBlueAccent),
      ),
      body: ExpansionTile(
        title: Text('Early Bird Registation'),
        // leading: Icon(Icons.local_pizza),
        trailing: Icon(Icons.expand_more),
        children: <Widget>[
          Column(
            children: <Widget>[
              new Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: [
                  Text('general registation'),
                  Text('yesllow'),
                  Text('mitukula vekatesh'),
                  new Radio(value: 0, groupValue: 23, onChanged: null),
                ],
              )
            ],
          ),
          Column(
            children: <Widget>[
              new Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: [
                  Text('general registation'),
                  Text('yesllow'),
                  Text('venkey'),
                  new Radio(value: 0, groupValue: 23, onChanged: null),
                ],
              )
            ],
          )
        ],
      ),
    );
  }