How to Blur effect apply on UIView in iOS?

blur, ios, objective-c, uiblureffect, uiview

Solution

Just put this blur view on the View (here yourBlurredView) which you want to be blurred. Here is an example in Objective-C:

UIVisualEffect *blurEffect; 
blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];

UIVisualEffectView *visualEffectView;
visualEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];

visualEffectView.frame = yourBlurredView.bounds; 
[yourBlurredView addSubview:visualEffectView];

and Swift:

var visualEffectView = UIVisualEffectView(effect: UIBlurEffect(style: .light))    

visualEffectView.frame = yourBlurredView.bounds

yourBlurredView.addSubview(visualEffectView)

Problem

In my application i want to apply blur effect on uiview.So how can i achive blur effect. I tried by below 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]; ``` But having problem using this code. when apply blur effect that time view became small.

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