gistfile1.txt

Call removeTarget:action:forControlEvents: pass nil for the target, NULL for action, and use a control mask that sets all bits (UIControlEventAllEvents). Something like this:

[someControl removeTarget:nil 
                   action:NULL 
         forControlEvents:UIControlEventAllEvents]; 


https://developer.apple.com/library/ios/#documentation/uikit/reference/UIControl_Class/Reference/Reference.html

http://stackoverflow.com/questions/3340825/uibutton-remove-all-target-actions