1. IOS 7 BLUR VIEWS WITHOUT
THE HACKS
Gerald Kim - iOS Developer at Cook
@gerald_kim on Twitter

2. WHERE’S MY UIBLURVIEW?
Blurred views like in UINavigationBar and Control Center
aren’t available out-of-the-box

3. •
Can grab layer from UIToolbar or UINavigationBar
•
Or can do it with CALayer
masking and Apple’s blur
example (UIImage+ImageEffects)

4. USING LAYER MASKED BLURS
•
Clever use of screenshots:
- (UIView *)snapshotViewAfterScreenUpdates:(BOOL)afterUpdates
!
•
Can combine masks for more complicated mask shapes:
- (void)addSublayer:(CALayer *)aLayer
!
•
Use images to create masks
(CALayer *)maskLayer.contents = (UIImage *)maskImage.CGImage;

5. OTHER IMPLEMENTATIONS
•
FXBlurView: Scheduled snapshot blurring
- https://github.com/nicklockwood/FXBlurView
•
GPUImage: Realtime Gaussian blur
- https://github.com/BradLarson/GPUImage
•
WWDC 2013 Session 226: Implementing Engaging UI
•
Code Sample at: https://github.com/geraldk/Fun-with-Masks