I’ve mentioned some nice libraries and components that are inspired by the blurring effects found within iOS 7 most recently a UIImage category allowing you to apply a blurring effect to a specified frame within an image.
Here’s a nice library from Aaron Ng called ANBlurredImageView that allows you to easily apply an animated blurring effect to images with a customizable colour.
ANBlurredIMageView subclasses UIImageView you can set up how quickly you would like the blurring/unblurring effect to take (making it great for transitions blurring the background) and you can apply a tint colour by providing a UIColor. There’s a handy callback method so you can execute some code once the blurring has completed.
You can find ANBlurredImageView on Github here.
You can read more about the image box blur algorithm used to generate the blur on the Indie Ambitions blog.
A nice easy way to create an animated blurring effect on an image.
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