List of Free code UIControl

Block UI
UIControl use block as call back.easy,simple and high performance.
ios filter control
An iOS Filter UIControl Subclass. Zero Graphics. Highly Customizable.
MGWU CCControlExtensions
Kobold 2D (& cocos2d iphone) versions of UIControl classes for MakeGamesWithUs. NO LONGER ACTIVELY MAINTAINED. Use YannickL's CCControlExtension project (https://github.com/YannickL/CCControlExtension).
SQRiskCursor
Custom UIControl using Core Animation.
UIControl Notifications
Make your UIControls respond to notifications and blocks instead of the old fashioned target+selector approach.
UIControl Sound
A simple UIControl category for adding sounds to UI controls such as UIButton, UISwitch, UISegmentedControl, UITextField, etc.
UITextView UIControl
A UIControl like API addition to UITextView.