Search in listView with custom itemView

I have a listView that has two text fields ( nome and local ) that are taken from a Empresa object.

The examples scattered on the internet only show search in listViews normal with only one string . How do I search search in the nome text field within itemView ?

Code to search for% of Strings :

   @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView = (SearchView) menu.findItem(R.id.menu_item_search).getActionView();

        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
        searchView.setOnQueryTextListener(this);
        return true;
    }

    @Override
    public boolean onQueryTextChange(String newText)
    {
        // this is your adapter that will be filtered
        if (TextUtils.isEmpty(newText))
        {
            list.clearTextFilter();
        }
        else
        {
            list.setFilterText(newText);
        }
        return true;
    }
    private class MyListAdapter extends ArrayAdapter<Empresa> {
        public MyListAdapter() {
            super(Main.this, R.layout.item_view, empresaList);
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View itemView = convertView;

            if (itemView == null)
                itemView = getLayoutInflater().inflate(R.layout.item_view, parent, false);

            //acha empresa
            Empresa currentEmpresa = empresaList.get(position);

            //preenche lista

            TextView makeTxtEmpresa = (TextView) itemView.findViewById(R.id.item_txtNome);
            makeTxtEmpresa.setText(currentEmpresa.getNome());

            TextView makeTxtLocal = (TextView) itemView.findViewById(R.id.item_txtLocal);
            makeTxtLocal.setText(currentEmpresa.getLocal());

            return itemView;
        }
    }