title: How to add page curl effect for viewpager
body: <p>I want to add page curl effect when user swipe from one view to another view in the ViewPager. I have study the <a href="http://developer.android.com/reference/android/support/v4/view/ViewPager.PageTransformer.html" rel="nofollow">ViewPager.PageTransformer</a></p>
  
  <p>But not able get idea how to implement.</p>
  
  <p>Thanks in advance.</p>