title: Android - scrolling down listView at the bottom
body: <p>I'm using a custom ListView in android to display somedata ... By default i made the size of the ListView to be 25. 
  I want when the user scoll down at the buttom of the listView to display another 25 views in addition to the previous one  ( The list now should display 50 elements)</p>
  
  <p>How can be this implemented?</p>