Listview search with custom itemView

Question

I have a listView which has two text fields (nome and local) which are removed from an object Empresa.

The examples spread on the Internet only show search in listViews normal with only one string. How do I make for the search search in the text box nome within the itemView?

Code to search in listView 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;
        }
    }