Android : How to add "more" link at the end of ListView to load more items?

I have a ListView in which want to load 14 items at first and create a "more" link at the end of list of first 14 items and when pressing the "more" i have to load more 14 items and so on.. How can I add a button or link at the end of ListView which is only visible after scrolling to the bottom of ListView .. is there sutable tutorial somewhere or please suggest me the way out