title: iOS - Creating a blurred layer using CALayer
body: <p>I created a CALayer with white color and 0.4 of opacity. What I want to is to make this layer above an image and make it blur, like the notification layer is blurring on the app or the home screen you're opening here's my CALayer: <br></p>
  
  <pre><code>CALayer *lyr = [CALayer layer];
  lyr.bounds = CGRectMake(0, 0, 190, 190);
  lyr.position = CGPointMake(90, 50);
  lyr.backgroundcolor = [UIColor whiteColor].CGColor;
  lyr.opacity = 0.4f;
  [self.view.layer addSubLayer:lyr];
  </code></pre>
  
  <p>Sorry if I didn't explained what I need exactly
  <br> Thanks in Advance</p>