Sample of FutureBuilder for screen

future_builder.dart

// sample of future builder starts
Future<PpleData?> _futurPple = // make request here
 setState(() {});


        FutureBuilder<PpleData?>(
            future: _futurPple, 
            builder: (context, snapshot){
              if(snapshot.connectionState == ConnectionState.waiting) return CircularProgressIndicator.adaptive(); // any other type of loader
              
              else if(snapshot.hasData) return Placeholder(); // build your screen here
              
              else if(snapshot.hasError) return Placeholder(); // handle and build widget for error
              
              else return Placeholder();  // handle and build any other type of error here
            }
        ),
 // sample of future builder ends