title: Get position of UIView in respect to its superview's superview
body: <p>I have a UIView, in which I have arranged UIButtons. I want to find the positions of those UIButtons. </p>
  
  <p>I am aware that <code>buttons.frame</code> will give me the positions, but it will give me positions only with respect to its immediate superview. </p>
  
  <p>Is there is any way we can find the positions of those buttons, withe respect to UIButtons superview's superview? </p>
  
  <p>For instance, suppose there is UIView named "firstView".</p>
  
  <p>Then, I have another UIView, "secondView". This "SecondView" is a subview of "firstView". </p>
  
  <p>Then I have UIButton as a subview on the "secondView". </p>
  
  <pre><code>-&gt;UIViewController.view
  ---&gt;FirstView A
  -------&gt;SecondView B
  ------------&gt;Button
  </code></pre>
  
  <p>Now, is there any way we can find the position of that UIButton, with respect to "firstView"?</p>