Protocol versus Category...

Call class method of Objective C category...

Objective-C category compared to features in other languages...

Is it safe to override a Category-defined method in Objective-C?...

-[NSCalendar dateFromComponents:] crashes with SIGABRT...

NSObject's category is available for every NSObject subclass even without any import of this cat...

Core Data: Where to put awakeFromFetch and awakeFromInsert?...

Using a Delegate in a Category...

re-declaring readonly property in class extensions...

Common webViewDidStartLoad by category...

How do I define a category that adds methods to classes which implement a particular protocol?...

How does objc_setAssociatedObject work?...

iOS framework and Category import...

Suppress linker warning: "Meta method X in category from Y overrides method from class in Z&quo...

Invoking Class B's Method B from within Class A's Method A...

Generate random identifier in C Preprocessor to avoid duplicate linker symbols...

Objective-C categories with the same name...

Can categories be inherited?...

Subclass communicate with Root Class...

performSelector in category of superclass fails when calling method available in specific subclass...

Add ivar and property to class using class extension...

can not receive notification of change, key value observing, KVO model-IOS...

How to use an internal method in a Objective-C category?...

How to Use Objective-C Categories...

Why can't I get my category instance method even after calling it?...

Is there anything opposite to category of cocoa?...

Implementing UIAlertView delegate method in a category...

Selector from button created in category calls released method...

Adding ivars to a Category with objc_setAssociatedObject...

declare two property and call objc_setAssociatedObject with same key...