DropdownButton<String>(
                                value: _selectedFilterOption,
                                icon: const Icon(Icons.filter_alt),
                                onChanged: (String? newValue) {
                                  setState(() {
                                    _selectedFilterOption = newValue!;
                                    debugPrint(
                                        "selected filter option: $_selectedFilterOption");

                                    // Reset other filter options when switching to a new filter
                                    if (_selectedFilterOption !=
                                        AppLocalizations.of(context)!.gender) {
                                      _selectedGender = 'All';
                                    }
                                    if (_selectedFilterOption !=
                                        AppLocalizations.of(context)!
                                            .location) {
                                      _selectedLocation = 'All';
                                    }
                                    if (_selectedFilterOption !=
                                        AppLocalizations.of(context)!
                                            .priority) {
                                      _selectedPriority = 'All';
                                    }
                                  });
                                  debugPrint(
                                      "setselected value confirm : $_selectedFilterOption");

                                  // Fetch data based on the selected filter option
                                  fetchFilderOptionData();
                                },
                                items: <String>[
                                  AppLocalizations.of(context)!.filter_by,
                                  AppLocalizations.of(context)!.gender,
                                  AppLocalizations.of(context)!.location,
                                  AppLocalizations.of(context)!.priority,
                                ].map<DropdownMenuItem<String>>((String value) {
                                  return DropdownMenuItem<String>(
                                    value: value,
                                    child: Text(value),
                                  );
                                }).toList(),
                              ),


how to fix the issue