title: How to Blur effect apply on UIView in iOS?
body: <p>In my application i want to apply blur effect on uiview.So how can i achive blur effect. 
  I tried by below code:</p>
  
  <pre><code>UIGraphicsBeginImageContext(scrollview.bounds.size);
  [scrollview.layer renderInContext:UIGraphicsGetCurrentContext()];
  UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
  UIGraphicsEndImageContext();
  
  //Blur the UIImage with a CIFilter
  CIImage *imageToBlur = [CIImage imageWithCGImage:viewImage.CGImage];
  CIFilter *gaussianBlurFilter = [CIFilter filterWithName: @"CIGaussianBlur"];
  [gaussianBlurFilter setValue:imageToBlur forKey: @"inputImage"];
  [gaussianBlurFilter setValue:[NSNumber numberWithFloat:3] forKey: @"inputRadius"];
  CIImage *resultImage = [gaussianBlurFilter valueForKey: @"outputImage"];
  UIImage *endImage = [[UIImage alloc] initWithCIImage:resultImage];
  
  //Place the UIImage in a UIImageView
  UIImageView *newView = [[UIImageView alloc] initWithFrame:scrollview.bounds];
  newView.image = endImage;
  [scrollview addSubview:newView];
  </code></pre>
  
  <p>But having problem using this code. when apply blur effect that time view became small.</p>