MSLiveBlur

The MSLiveBlurView dynamically blurs the content on the screen and updates at the given interval. Subviews will not be blurred but will instead appear on top of the blurred area.

I use a condensed version of GPUImage to do the blurring.

Note: Performance on the simulator is abysmal for blur radius >5, try it on an actual device - it's much faster!

Usage

Drag the MSLiveBlur folder into your XCode project, and include the required system dependencies:

CoreGraphics.framework
UIKit.framework
Foundation.framework

For live blur:

#import "MSLiveBlur.h"
[MSLiveBlur sharedInstance].isStatic = NO;
[[MSLiveBlur sharedInstance] blurRect:someView.frame];

For static blur:

#import "MSLiveBlur.h"
[[MSLiveBlur sharedInstance] blurRect:someView.frame];

then, to update manually:

[[MSLiveBlur sharedInstance] forceUpdateBlur];

Adding subviews:

UIView* overlayView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[[MSLiveBlur sharedInstance] addSubview:overlayView];

Todo:

Figure out how to only blur views beneath so as not to require a new window
Different shapes (ex: rounded corners)

Done

Live blur with variable interval
Live blur appears on top of the application and blurs underneath
Specify the size of the blurred area so it does not blur the entire screen (i.e. actually use the given frame)
Tint color
Support multiple areas at once
Allow subviews on top of the blurred area
Landscape
Enable touches on subviews

Leta0n / MSLiveBlur