Originally posted on Carbon Five’s Blog. Have you ever wanted to introduce new functionality to base classes in the iOS SDK? Or just make them work a little differently? In order to do so, you must enter the wild and dangerous world of monkey-patching. In this series of posts, we’ll show how to monkey-patch in Objective-C through categories to add and change methods, to add new instance variables and properties, and introduce swizzling, a technique that allows us to extend and preserve existing functionality.

Originally posted on Carbon Five’s Blog. Have you ever wanted to introduce new functionality to base classes in the iOS SDK? Or just make them work a little differently? In order to do so, you must enter the wild and dangerous world of monkey-patching. In this series of posts, we’ll show how to monkey-patch in Objective-C through categories to add and change methods, to add new instance variables and properties, and introduce swizzling, a technique that allows us to extend and preserve existing functionality.

Originally posted on Carbon Five’s Blog. Have you ever wanted to introduce new functionality to base classes in the iOS SDK? Or just make them work a little bit differently? In order to do so, you must enter the wild and dangerous world of monkey-patching. Monkey-patching is extending or modifying the behavior of code at runtime without changing its original source code. You can monkey-patch any code, it doesn’t matter whether it’s your own code or not.