CIGaussianBlur image size

Question

I want to blur my view, and I use this code:

//Get a UIImage from the UIView
NSLog(@"blur capture");
UIGraphicsBeginImageContext(BlurContrainerView.         


        

Answer 1

Looks like the blur filter is giving you back an image that’s bigger than the one you started with, which makes sense since pixels at the edges are getting blurred out past them. The easiest solution would probably be to make newView use a contentMode of UIViewContentModeCenter so it doesn’t try to squash the blurred image down; you could also crop blurredImage by drawing it in the center of a new context of the appropriate size, but you don’t really need to.