title: How to check that UIImageView has completed its animation
body: <p>I am new to iPhone development. I am using <code>UIImageView</code> to animate the images in an array. I am deciding that the animation is stopped through a property called <code>isAnimating</code>. But it always returns true.</p>
  
  <p>I want to check that the animation is completed or there is some duration left to complete the animation.</p>
  
  <p>Please let me know, how I can check it.</p>