title: How to make tableView Scroll Automatically to top/bottom?
body: <p>This is just a test, which i might add it to the app. Well.... I have a <code>tableView</code>. </p>
  
  <ol>
  <li><p>If click <code>button1</code>,  I want the tableView to scroll up automatically to the top.</p></li>
  <li><p>If I click <code>button2</code> I want the tableView to scroll down automatically to the bottom.</p></li>
  </ol>
  
  <p>How can this be done ? What about Scroll Speed ?</p>