title: iOS image loader effect
body: <p>I am using "SVProgressHUD" for loader. When I want to load an image from url I am using async process to load the image in background. After completing the download I am updating the UI. And for that time span I am using a placeholder on the imageview and a loader with "Please wait..". But I want to use a loader like "Instagram". That means, when an image is loading from online it loads a blurry image of the original image and upon downloading the image , the blurry image show the original image.</p>
  
  <p>Can any one please suggest me how can I do this?</p>