title: iPhone X keyboard appear showing extra space
body: <p>I have created a chat UI in which I have added a <code>constraint</code> for the <code>tableView</code> to the bottom of the screen. I am changing the constraint value by adding the height of the keyboard which is working fine in all the devices except iPhone X.</p>
  
  <p>UI when key board is not visible:</p>
  
  <p><a href="https://i.stack.imgur.com/gyMav.png" rel="noreferrer"><img src="https://i.stack.imgur.com/gyMav.png" alt="enter image description here"></a></p>
  
  <p>Which is fine. </p>
  
  <p>Problem is when keyboard appears blank space is visible in between the textView and the keyboard: </p>
  
  <p><a href="https://i.stack.imgur.com/I9uNe.png" rel="noreferrer"><img src="https://i.stack.imgur.com/I9uNe.png" alt="enter image description here"></a></p>
  
  <p>Do I have to try for a different approach for this or it can be resolved using constraints ?</p>