Consigo apresentar o search mas ele nao apresenta resultado algum...

  @Override
    protected void onNewIntent(Intent intent) {
        handleIntent(intent);
        super.onNewIntent(intent);
    }

 private void handleIntent(Intent intent) {
    if(Intent.ACTION_SEARCH.equals(intent.getAction())){
            String query = intent.getStringExtra(SearchManager.QUERY);
            showResults(query);
        }
    }

   @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.comentarios,menu);

        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView = (SearchView) menu.findItem(R.id.search).getActionView();
        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));

        return true;
    }