title: Animating a UILabel background color when text change
body: <p>I have a UITableView and I have layout some labels for its rows. When the values change in the  table (means text values changes inside the labels), I need to animate the UILabel's backgroundcolor( eg. Background color from red --> its original background color). Then users can clearly notice the values changed.</p>
  
  <p>As far as I understand there are 2 parts. </p>
  
  <ol>
  <li>Detecting the text change event.</li>
  <li>Do the animation for some time duration.</li>
  </ol>
  
  <p>Can someone please tell me how to do this? Thanks.</p>