title: Dynamic tableview with paging
body: <p>I want to create table view in which paging is required but i want an extra feature like if one cell is added to bottom then one cell will be removed to top</p>
  
  <p>for example</p>
  
  <p>if table have 100 rows and user scroll to bottom app call to server and load another 20 rows at bottom and on same time 20 rows from top will be removed.</p>
  
  <p>if user scroll to top then app call to server and load 20 cell to top and remove 20 cell to bottom.</p>
  
  <p>in short anyhow table have 100 cells only depending on scroll direction cell will be added on top or bottom</p>