title: How to make this kind of effect in iOS, blur effect it is increasing leaner to lower side
body: <p>I am searched for this, but i didn't found the exact solution for my problem, all the answer for making blur effect shows making the blur effect on entire frame but i want the blur effect something look like below image </p>
  
  <p><img src="https://i.stack.imgur.com/O7NdF.png" alt="enter image description here"></p>
  
  <p>in the image the blur effect is at the bottom that to, it is increasing leaner to lower side </p>
  
  <p>can any one know how to do this, any ideas or sample code for this ... :) </p>