DAKeyboardControl allows you to easily add keyboard awareness and scrolling dismissal (a receding keyboard ala iMessages app) to any UIView, UIScrollView or UITableView with only 1 line of code. DAKeyboardControl automatically extends UIView and provides a block callback with the keyboard's current origin.
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An objective-C API that uses the new iOS 7 UIView snapshot category drawViewHierarchyInRect:afterScreenUpdates: to produce Apple Notification and Control Center like blur effects. 7blur supports both live real time and static blurred backgrounds enforcing UI depth.
Sample code for the Blending Modes blog post
This is the code for the tutorial "How to create a custom control in iOS" from http://www.thinkandbuild.it
Cocoa noise drawing code + a ready to go noise view!