title: How to display a placeholder before the tableview cells get displayed?
body: <p>This questions is referencing just before a tableview fetches its data and displays its cells. </p>
  
  <p>I've seen a few apps lately display a rough outline type image of the tableview cells for the brief moments before the populated cells get displayed. </p>
  
  <p>How is this done?</p>
  
  <p>Is a placeholder image used for the entire tableview or are placeholder type images rendered for each cell until the cell is dequeued?</p>
  
  <p>Here are examples from Facebook and the fiverr app
  <a href="https://i.stack.imgur.com/zNZSw.png" rel="noreferrer"><img src="https://i.stack.imgur.com/zNZSw.png" alt="fiverr"></a>
  <a href="https://i.stack.imgur.com/frEF9.png" rel="noreferrer"><img src="https://i.stack.imgur.com/frEF9.png" alt="Facebook"></a></p>