Filter a ListView on an Android CursorAdapter

Hello friends I wanted to see if you can help me, I'm with the following problem. I have in a fragment a listview to which I charge the information for a Cursor Adapter. Now what I want is to be able to filter that list.

In the fragment in the method onCreateOptionsMenu I have the following

public class ArticulosFragment extends Fragment {
private static final String ARG_PRECIO_ID = "precioId";
private OperacionesBaseDatos mOpebase;
private ListView mArticulosList;
private ArticulosCursorAdapter mArticulosAdapter;
private String mPrecioId;

public ArticulosFragment() {
    // Required empty public constructor
}


public static ArticulosFragment newInstance(String precioId) {
    ArticulosFragment fragment = new ArticulosFragment();
    Bundle args = new Bundle();
    args.putString(ARG_PRECIO_ID, precioId);
    fragment.setArguments(args);
    return fragment;
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //obtenemos el codigo del precio seleccionado para los items
    if (getArguments() != null) {
        mPrecioId = getArguments().getString(ARG_PRECIO_ID);
        if (mPrecioId==null) {
            mPrecioId=getResources().getString(R.string.precio_default);
        }
    }
    //habilitamos el toolbar
    setHasOptionsMenu(true);
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View root = inflater.inflate(R.layout.fragment_articulos, container, false);

    //referencias UI
    mArticulosList = (ListView) root.findViewById(R.id.articulos_list);
    mArticulosAdapter = new ArticulosCursorAdapter(getActivity(),null);
    mArticulosList.setAdapter(mArticulosAdapter);

    // Eventos
    mArticulosList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
            Cursor currentItem = (Cursor) mArticulosAdapter.getItem(i);
            String currentItemId = currentItem.getString(currentItem.getColumnIndex(ContratoPedidos.Productos.ID));
            String currentItemCod = currentItem.getString(currentItem.getColumnIndex(ContratoPedidos.Productos.CODIGO));
            Float currentPrecio = currentItem.getFloat(currentItem.getColumnIndex(ContratoPedidos.Productos.PRECIO));
            ShowCantidadItems(currentItemId,currentItemCod,currentPrecio);
        }
    });

    LoadArticulos();
    return root;
}



//
//Metodo para revisar el texto del filtro
//

@Override
public void onCreateOptionsMenu(Menu menu,MenuInflater inflater) {
    //super.onCreateOptionsMenu(menu, inflater);

    menu.clear();
    inflater.inflate(R.menu.menu_buscar_articulos,menu);
    final MenuItem searchItem = menu.findItem(R.id.mnu_articulo_buscar);
    final SearchView searchView = (SearchView) searchItem.getActionView();
    searchView.setQueryHint("Buscar Articulo");
    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener(){
        @Override
        public boolean onQueryTextSubmit(String query) {

            query=query.toUpperCase();
            //mArticulosAdapter.getFilterQueryProvider

            mArticulosAdapter.setFilterQueryProvider(new FilterQueryProvider() {
                public Cursor runQuery(CharSequence constraint) {
                    return mOpebase.ObtenerInstancia(getActivity()).BuscarProductosPorDescripcion(mPrecioId,"LAVA");
                }
            });
            Cursor xx = mOpebase.ObtenerInstancia(getActivity()).ObtenerProductosPorPrecio(mPrecioId);
            //mArticulosAdapter.getFilter().filter(query);
            mArticulosAdapter.notifyDataSetChanged();
            Toast.makeText(getActivity(),query,Toast.LENGTH_LONG).show();
            return false;
        }
        @Override
        public boolean onQueryTextChange(String newText) {
            if (!TextUtils.isEmpty(newText)) {
                AplicarFiltro(newText);
                mArticulosList.setFilterText(newText);
            }
            //searchView.setQuery("", false);
            //searchView.setIconified(true);
            return false;
        }



    });


    super.onCreateOptionsMenu(menu,inflater);
}

private void AplicarFiltro(String newText) {
    ArticulosCursorAdapter adapter = (ArticulosCursorAdapter) mArticulosList.getAdapter();
    //adapter.filter(newText);
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == PedidosCrearFragment.REQUEST_UPDATE_DELETE_PEDIDO) {
        if (resultCode == Activity.RESULT_OK) {
            String id=data.getStringExtra("idArticulo");
            String cod=data.getStringExtra("codiArticulo");
            String des=data.getStringExtra("descArticulo");
            Integer cant=data.getIntExtra("canIngresada",0);
            Float pre=data.getFloatExtra("precioArticulo",0);
            Integer desc=data.getIntExtra("porDescuento",0);

            Intent intentArt = new Intent();
            intentArt.putExtra("idArticulo",id);
            intentArt.putExtra("codiArticulo",cod);
            intentArt.putExtra("descArticulo",des);
            intentArt.putExtra("canIngresada",cant);
            intentArt.putExtra("precioArticulo",pre);
            intentArt.putExtra("porDescuento",desc);
            getActivity().setResult(Activity.RESULT_OK,intentArt);
            getActivity().finish();
        }
    }
}


private void  LoadArticulos(){
    new ArticulosLoadTask().execute();
}

private class ArticulosLoadTask extends AsyncTask<Void, Void, Cursor> {

    @Override
    protected Cursor doInBackground(Void... voids) {
        return mOpebase.ObtenerInstancia(getActivity()).ObtenerProductosPorPrecio(mPrecioId);
    }

    @Override
    protected void onPostExecute(Cursor cursor) {
        if (cursor != null && cursor.getCount() > 0) {
            mArticulosAdapter.swapCursor(cursor);
        } else {
            // Mostrar empty state
            Toast.makeText(getActivity(),"No hay articulos en la lista de precio seleccionada",Toast.LENGTH_LONG).show();
        }
    }
}

private void ShowCantidadItems(String itemId,String itemCod,Float precio) {
    Intent intent = new Intent(getActivity(), ArticuloAgregarCantidadActivity.class);
    intent.putExtra(ArticulosActivity.EXTRA_ARTICULO_ID, itemId);
    intent.putExtra(ArticulosActivity.EXTRA_ARTICULO_COD, itemCod);
    intent.putExtra(ArticulosActivity.EXTRA_ARTICULO_CANTIDAD, 0);
    intent.putExtra(ArticulosActivity.EXTRA_PRECIO, precio);
    startActivityForResult(intent, PedidosCrearFragment.REQUEST_UPDATE_DELETE_PEDIDO);
}

}

In onQueryTextSubmit , I have the text that the user types in the query variable, but I do not know how to apply the filter here.

My adapter cursor is the following

import android.content.Context;
import android.database.Cursor;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CursorAdapter;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

import saga.com.ec.sagamovil.R;
import saga.com.ec.sagamovil.sqlite.ContratoPedidos;

/**
 * Created by fsigu on 23/1/2017.
 */

public class ArticulosCursorAdapter extends CursorAdapter implements Filterable {

public ArticulosCursorAdapter(Context context, Cursor c) {
    super(context, c, 0);
}

@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
    LayoutInflater inflater = LayoutInflater.from(context);
    return  inflater.inflate(R.layout.list_item_articulo,parent,false);
}

@Override
public void bindView(View view, Context context, Cursor cursor) {
    //referencias UI
    TextView articuloText = (TextView) view.findViewById(R.id.tv_articulo);
    TextView cantidadText = (TextView) view.findViewById(R.id.tv_cantidad_articulo);
    TextView precioText = (TextView) view.findViewById(R.id.tv_precio_articulo);

    //get valores
    String codigo=cursor.getString(cursor.getColumnIndex(ContratoPedidos.Productos.CODIGO));
    String articulo=cursor.getString(cursor.getColumnIndex(ContratoPedidos.Productos.NOMBRE));
    String existencia=cursor.getString(cursor.getColumnIndex(ContratoPedidos.Productos.SALDO));
    String precio=cursor.getString(cursor.getColumnIndex(ContratoPedidos.Productos.PRECIO));

    //setup
    articuloText.setText(articulo);
    cantidadText.setText(existencia);
    precioText.setText(precio);
}

@Override
public Filter getFilter() {

    Filter filter = new Filter() {

        @SuppressWarnings("unchecked")
        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {

            List<String> arrayListNames = (List<String>) results.values;
            notifyDataSetChanged();
        }

        @Override
        protected FilterResults performFiltering(CharSequence constraint) {

            FilterResults results = new FilterResults();
            ArrayList<String> FilteredArrayNames = new ArrayList<String>();

            // perform your search here using the searchConstraint String.

            constraint = constraint.toString().toLowerCase();
            for (int i = 0; i < mDatabaseOfNames.size(); i++){
                String dataNames = mDatabaseOfNames.get(i);
                if (dataNames.toLowerCase().startsWith(constraint.toString()))  {
                    FilteredArrayNames.add(dataNames);
                }
            }

            results.count = FilteredArrayNames.size();
            results.values = FilteredArrayNames;
            Log.e("VALUES", results.values.toString());

            return results;
        }
    };

    return filter;
}
}

I do not know if you can help me because I have tried several ways and I do not know how to apply the filter.

Greetings