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Я борюсь с этой проблемой около 2-3 дней; Я изучал тему и кое-что еще об этом случае, но безрезультатно.

моя проблема: у меня есть действие с RecyclerView и SearchView, когда я что-то ищу, RecyclerView не обновляется, вызывая notifyDataSetChanged. после поиска об этом я узнал, что это связано с вызовом этого метода в потоке пользовательского интерфейса none, так как я должен это сделать? Я попробовал AsyncTask, новое запускаемое и другое решение, но результат оказался неэффективным.

большое спасибо и извините за мой плохой английский.

Класс активности:

     public class GoodsListActivity extends AppCompatActivity {

private GoodsListAdapter goodsListAdapter;
private RecyclerView rvGoodsList;
private List goodsList= new ArrayList();


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_goods_list);
    GoodsDAO goodsDAO =TopDb.getTopDb(getApplicationContext()).getGoodsDAO();
    goodsList= (ArrayList<Goods>) goodsDAO.getAllGoods();
    rvGoodsList=findViewById(R.id.rv_goods_list);
    rvGoodsList.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false));
    goodsListAdapter=new GoodsListAdapter((ArrayList<Goods>) goodsList,this);
    rvGoodsList.setAdapter(goodsListAdapter);

    SearchView searchView=findViewById(R.id.sv_search_goods_list);
    search(searchView);

}

private void search(SearchView searchView) {

    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String query) {

            return  false;
        }
        @Override
        public boolean onQueryTextChange(String newText) {
            goodsListAdapter.getFilter().filter(newText);
            return true;
        }
    });
}
 

}

Класс адаптеров:

     public class GoodsListAdapter extends RecyclerView.Adapter<GoodsListAdapter.ViewHolder> implements Filterable {
private Context context;

private ArrayList<Goods> goodsList =new ArrayList<>();
private ArrayList<Goods> filteredGoodsList =new ArrayList<>();

@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.single_goods_list,parent,false);
    return new ViewHolder(view);
}

@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {

    //get goods code and combine with goods name to show in goods name text view
    String goodsCodeStr=goodsList.get(position).getgCode();
    String goodsNameStr=goodsList.get(position).getgName();
    String goodsNameCodeStr=goodsNameStr " " "(" goodsCodeStr ")";
    holder.getTvgName().setText(goodsNameCodeStr);
    //
    //get goods picture Uri path and set to goods picture image button
    String goodPicUri=MainPanelActivity.topPicsUri "/" goodsCodeStr ".jpg";
    holder.getImgBtngPicture().setImageURI(Uri.parse(goodPicUri));
    //
    //calculate goods units count and set to goods units text view
    String gPrimUnit=goodsList.get(position).getgPrimaryUnit();
    String gFunit=goodsList.get(position).getgFirstUnit();
    String gSunit=goodsList.get(position).getgSecondUnit();
    String gFunitRatio=goodsList.get(position).getgFirstUnitRatio().toString();
    String gSunitRatio=goodsList.get(position).getgSecondUnitRatio().toString();
    String gPrimStock=goodsList.get(position).getgPrimaryUnitStock().toString();
    String gFstock=goodsList.get(position).getgFirstUnitStock().toString();
    String gSstock=goodsList.get(position).getgSecondUnitStock().toString();

    String gPunitStock="(" gPrimStock " " gPrimUnit ")";
    String gFunitStock="(" gFstock " " gFunit " " gFunitRatio " " gPrimUnit ")";
    String gSunitStock="(" gSstock " " gSunit " " gSunitRatio " " gPrimUnit ")";

    String gFullUnitStock=gPunitStock "n " gFunitStock " " gSunitStock;

    holder.getTvgUnits().setText(gFullUnitStock);
    //
    //set accessible stock to accessible stock text view
    if (goodsList.get(position).getgAccessiblePrinmaryUnitStock() != null) {
        String gAccessibleStock = goodsList.get(position).getgAccessiblePrinmaryUnitStock().toString();
        String gAccessibleUnitStock = "("   gAccessibleStock   " "   gPrimUnit   ")";
        holder.getTvgAccissibleStock().setText(gAccessibleUnitStock);
    }
    else {
        holder.getTvgAccissibleStock().setVisibility(View.GONE);
    }
    //
    holder.getTvgSerialTech().setText(goodsList.get(position).getgSerial());
    holder.getTvgPrice1().setText(goodsList.get(position).getgPrice1().toString());
    holder.getTvgPrice2().setText(goodsList.get(position).getgPrice2().toString());
    holder.getTvgPrice3().setText(goodsList.get(position).getgPrice3().toString());

    holder.getTvgDescription().setText(goodsList.get(position).getgDescription());

    //set click listener for each goods item to show full screen goods picture
    holder.getImgBtngPicture().setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            Intent i=new Intent(context, ShowSinglePictureActivity.class);
            i.putExtra("gPicUriValue", goodPicUri);

            context.startActivity(i);
        }
    });

    //
    holder.getTvgName().setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //check to response only we have came from new order activity
            if (NewOrderActivity.isResultFromGoodsListActivity==true)

            {
                NewOrderActivity.newOrderGcode=goodsList.get(position).getgCode();
                NewOrderActivity.tvNewOrderGname.setText(goodsList.get(position).getgName());
                NewOrderActivity.etNewOrderGprice.setText(goodsList.get(position).getgPrice1().toString());
                //obtain and set goods units to new order activity units selection spinner
                String primaryU=goodsList.get(position).getgPrimaryUnit();
                String firstU=goodsList.get(position).getgFirstUnit();
                String secondUnit=goodsList.get(position).getgSecondUnit();
                String[] goodsUnits={primaryU,firstU,secondUnit};
                ArrayAdapter<String> spinerUnitAdapter=new ArrayAdapter<String>(context, android.R.layout.simple_spinner_item,goodsUnits);
                NewOrderActivity.spNewOrderUnits.setAdapter(spinerUnitAdapter);
                //
                NewOrderActivity.isResultFromGoodsListActivity=false;
                ( (GoodsListActivity)context).onBackPressed();
            }
        }
    });
}

@Override
public int getItemCount() {
    return goodsList.size();
}

@Override
public Filter getFilter() {
    return new Filter() {
        @Override
        protected FilterResults performFiltering(CharSequence charSequence) {

            String charString = charSequence.toString();

            if (charString.isEmpty()) {

                filteredGoodsList = goodsList;
            } else {

                ArrayList<Goods> filteredList = new ArrayList<>();

                for (Goods goods : goodsList) {

                    if (goods.getgName().contains(charString)) {

                        filteredList.add(goods);
                    }
                }

                filteredGoodsList = filteredList;
            }

            FilterResults filterResults = new FilterResults();
            filterResults.values = filteredGoodsList;
            return filterResults;
        }
        @Override
        protected void publishResults(CharSequence charSequence, FilterResults filterResults) {
            filteredGoodsList = (ArrayList<Goods>) filterResults.values;
            
                notifyDataSetChanged();
        }
    };
        }



public static class ViewHolder extends RecyclerView.ViewHolder{

    private final TextView tvgName;
    private final TextView tvgUnits;
    private final TextView tvgAccissibleStock;
    private final TextView tvgSerialTech;
    private final TextView tvgPrice1;
    private final TextView tvgPrice2;
    private final TextView tvgPrice3;

    private final TextView tvgDescription;
    private final ImageButton imgBtngPicture;



    public ViewHolder(View view){
        super(view);
      tvgName=view.findViewById(R.id.single_goods_list_gname);
        tvgUnits=view.findViewById(R.id.single_goods_list_gunits);
        tvgAccissibleStock=view.findViewById(R.id.single_goods_list_gaccissiblestock);
        tvgSerialTech=view.findViewById(R.id.single_goods_list_gserial_gtechcode);
        tvgPrice1=view.findViewById(R.id.single_goods_list_gprice1);
        tvgPrice2=view.findViewById(R.id.single_goods_list_gprice2);
        tvgPrice3=view.findViewById(R.id.single_goods_list_gprice3);

        tvgDescription=view.findViewById(R.id.single_goods_list_gdescription);
        imgBtngPicture=view.findViewById(R.id.single_goods_list_gpicture);



    }
    public TextView getTvgName() {
        return tvgName;
    }

    public TextView getTvgUnits() {
        return tvgUnits;
    }

    public TextView getTvgAccissibleStock() {
        return tvgAccissibleStock;
    }

    public TextView getTvgSerialTech() {
        return tvgSerialTech;
    }

    public TextView getTvgPrice1() {
        return tvgPrice1;
    }

    public TextView getTvgPrice2() {
        return tvgPrice2;
    }

    public TextView getTvgPrice3() {
        return tvgPrice3;
    }

    public TextView getTvgDescription() {
        return tvgDescription;
    }

    public ImageButton getImgBtngPicture() {
        return imgBtngPicture;
    }

}
///
public GoodsListAdapter(ArrayList<Goods> goodsObjsList,Context c){
    context=c;
    goodsList =goodsObjsList;
}
///
 

}

в адаптерклассе notifyDataSetChanged() внутри результатов публикации не работает.