title: animating UIView transitions like expand dot to circle
body: <p>In my iPhone app i need to implement a different type of transition.</p>
  
  <p>that was </p>
  
  <p>next view open from the current view, </p>
  
  <p>it stats like a dot, and the dot expands slowly like a circle with in the circle next view is to be displayed partially with in the part of the circle , finally the circle expands totally the next view appears completely.</p>
  
  <p>I search lots of transitions like CATransitions, and some animations on cocoa controller, but i didn't find this type of transition, can any one help me please.</p>
  
  <p><img src="https://i.stack.imgur.com/2b6O9.png" alt="enter image description here"><img src="https://i.stack.imgur.com/1h5vU.png" alt="enter image description here"><img src="https://i.stack.imgur.com/qqnJ6.png" alt="enter image description here"><img src="https://i.stack.imgur.com/DxWjQ.png" alt="enter image description here"></p>