Snippet from my code from the filter section

Filter.dart

                         //For filterchip row and i am clearing filtered list in init state            
onSelected: ((value) { 
                                           setState(() { 
                                             if (value) { 
                                               _filters.add(filterType); 
                                             } else { 
                                               _filters.removeWhere((name) { 
                                                 return name == filterType; 
                                               }); 
                                             } 
                                             _filteredNotifications.clear(); 
                                             if (_filters 
                                                 .contains("Academics")) { 
                                               setState(() { 
                                                 showFrom = true; 
                                               }); 
                                             } else { 
                                               setState(() { 
                                                 showFrom = false; 
                                               }); 
                                             } 
                                             if (_filters.isEmpty) { 
                                               _filteredNotifications.addAll( 
                                                   NotificationModel 
                                                       .notifications!); 
                                             } else { 
                                               _filteredNotifications.addAll( 
                                                   NotificationModel 
                                                       .notifications! 
                                                       .where((notification) => 
                                                           _filters.contains( 
                                                               notification 
                                                                   .notificationLabel))); 
                                             } 
                                           }); 
                                         }))); 
                               }).toList()), 
                             ), 
                           ], 
                         ), 
                       ), 
                     ) 
                   : const Center( 
                       child: CircularProgressIndicator( 
                       color: Colors.white, 
                     )), 
             ], 
           ), 
         ), 
       ), 
       body: Column( 
         children: [ 
           Container( 
             child: errmsg("No Internet Connection Available", isoffline), 
             //to show internet connection message on isoffline = true. 
           ), 
           Expanded( 
             child: Padding( 
                 padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 8), 
                 child: FutureBuilder( 
                     future: myfuture, 
                     builder: ((context, snapshot) { 
                       if (snapshot.connectionState == ConnectionState.done) { 
                         if (snapshot.hasData) { 
                           return RefreshIndicator( 
                             onRefresh: () async { 
                               loadNotifications(); 
                             }, 
                             child: Padding( 
                               padding: const EdgeInsets.only(bottom: 54), 
                               child: ListView.builder( 
                                   itemCount: _filteredNotifications.length, 
                                   itemBuilder: (context, index) { 
                                     return NotificationWidget( 
                                       notification: 
                                           _filteredNotifications[index], 
                                     ); 
                                   }), 
                             ), 
                           );