controller.hide()|show() does not wort

[grukillerkams]

I was trying to hide the floating bar after clicking on a result but it does work and does not throw any error.

import 'package:eshop/data/models/models.dart';
import 'package:eshop/data/providers/providers.dart';
import 'package:eshop/utils/res/enums.dart';
import 'package:eshop/utils/utils.dart';
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:material_floating_search_bar/material_floating_search_bar.dart';
import 'package:provider/provider.dart';

class FilterSearch extends StatelessWidget {
  const FilterSearch({super.key});

  @override
  Widget build(BuildContext context) {
    BrandsProvider bp = context.read<BrandsProvider>();
    BrandsProvider bpW = context.watch<BrandsProvider>();
    SearchProvider sp = context.read<SearchProvider>();
    final FloatingSearchBarController searchController =
    FloatingSearchBarController();
    return Scaffold(
      appBar: AppBar(
        title: const Text("Search filter"),
        leading: IconButton(
          onPressed: () {
            context.pop();
          },
          icon: const Icon(Icons.arrow_back),
        ),
      ),
      body: Padding(
        padding: const EdgeInsets.symmetric(horizontal: 10.0),
        child: Stack(
          children: [
            FloatingSearchBar(
              height: 60,
              controller: searchController,
              progress: bpW.uiState == UIState.LOADING ? true : false,
              automaticallyImplyBackButton: false,
              backdropColor: Colors.transparent,
              onQueryChanged: (q) {
                bp.getBrands(q);
              },
              builder: (context, anim) {
                switch (bpW.uiState) {
                  case UIState.UNINITIALIZED:
                    return const SizedBox(height: 0, width: 0);
                  case UIState.ERROR:
                    return const ListTile(
                      title: Center(child: Text("An error occurred")),
                    );
                  case UIState.LOADING:
                    return const SizedBox(height: 0);
                  case UIState.DATA:
                    return ListView.builder(
                      padding: EdgeInsets.zero,
                      shrinkWrap: true,
                      itemCount: bpW.brands.length,
                      itemBuilder: (context, i) {
                        Brand brand = bpW.brands[i];
                        return GestureDetector(
                          onTap: () {
                            sp.filters[QueryProductDto.brand] = brand.id;
                            searchController.query = brand.name;
                            searchController.hide(); /// DOES NOT WORK
                            bp.clear();
                          },
                          child: ListTile(
                              title: Text(brand.name),
                            ),
                        );
                      },
                    );
                }
              },
            ),
          ],
        ),
      ),
    );
  }
}