How can I view the details of an item in a detailed screen - Flutter

Question

I am new to flutter this error is giving me a serious nightmare. I have a card list of items called Anchors. These items are coming from the shared preference file which belongs

Answer 1

first screen onPressed get the index and assigned it to variable, or you can just pass i varibale too,

     onPressed: () {
         Navigator.push(context,new MaterialPageRoute(builder: (context) =>
              detailsPage(i))); },

In detailed page

    class detailsPage extends StatefulWidget {
        final int selectedIndex;
        detailsPage(this.selectedIndex,{Key key}) : super(key: key);

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

place that you want to use the previous page passsed index,

    return Text(value[widget.selectedIndex]['DistributionCentres'][i]['Name']);

Hope this will help..