_ios background Gaussian blur effect in IOS

Nonsense not much said, to achieve simple Gaussian blur effect code:

  UIView *bgview= [[Uiviewalloc]initwithframe:self.view.frame];  Bgview.backgroundcolor = [Uicolor blackcolor];  bgview.alpha = 0.9;
  Bgview.tag =10086;
  [Self.viewaddSubview:bgview];
  Uiblureffect *blur = [Uiblureffecteffectwithstyle:uiblureffectstylelight];
  Uivisualeffectview *effectview = [[Uivisualeffectviewalloc] initwitheffect:blur];
  Effectview.frame =self.view.frame;
  [Bgview Addsubview:effectview];

This writing code is simply a Gaussian blur. With regard to elimination, remove it from the line.

About the Gaussian blur of the picture, first get the picture:

Cicontext *context = [Cicontext contextwithoptions:nil]; 
  Ciimage *inputimage = [[Ciimage alloc] initwithimage:[uiimage imagenamed:@ "1.png"]]; 
  Create Gaussian blur filter 
  cifilter *filter = [Cifilter filterwithname:@ "Cigaussianblur"]; 
  [Filter Setvalue:inputimage Forkey:kciinputimagekey]; 
  [Filter Setvalue:[nsnumber numberwithfloat:10.0] forkey:@ "Inputradius"]; 
  Blur image 
  Ciimage *result = [Filter Valueforkey:kcioutputimagekey]; 
  Cgimageref cgimage = [Context Createcgimage:result fromrect:[result extent]]; 
  UIImage *image = [UIImage imagewithcgimage:cgimage]; 
  Cgimagerelease (Cgimage); 
  

The above mentioned is a small set of iOS to introduce the background of the Gaussian blur effect, I hope to help everyone, if you have any questions please give me a message, small series will promptly reply to everyone. Here also thank you very much for the cloud Habitat Community website support!