[murtrum]

He encontrado esto:

     // LoadMore button
        Button btnLoadMore = new Button(this);
        btnLoadMore.setText("Cargar más");
 
        // Adding Load More button to lisview at bottom
        listView.addFooterView(btnLoadMore);

que añade un botón al final del listview

seguiré investigando.

encontré esto que es interesante:

void  addHeaderView(View v) Add a fixed view to appear at the top of the list.
boolean removeFooterView(View v)                  Removes a previously-added footer view.
boolean removeHeaderView(View v)                  Removes a previously-added header view.