title: How to add UIView on top of UITableView
body: <p>I have a table in my viewController class</p>
  
  <p>On tapping of a button (this button is outside of table), i wanted to show some <strong>UIView on top of tableView alone</strong> and a web service request is sent. After receiving the response, i want to remove the UIView which i have added.  </p>
  
  <p><code>tableView.addSubview(myview)</code> didn't work for me, but <code>self.view.addSubview(myview)</code> worked but i wanted to overlay my UIView only on top of table view. </p>
  
  <p>My question is specific to how to add/remove subview to a tableview. How can i achieve this?</p>