Category is an Objective-C language feature that allows adding methods to an existing class in a different implementation unit without subclassing.
I would like to add some rounded corners to all of the UIImageViews in my project. I have already got …
ios subclass code-reuse objective-c-categoryClass extensions @interface Class () are a lot more powerful and can inject variables into the class. Categories @interface Class (Category) …
objective-c objective-c-category class-extensionsCan anybody tell me when to use categories and when to use subclassing in Objective-C? Also please tell me the …
objective-c inheritance subclass objective-c-categoryIf I have a method to attach an animation to an UI Element, instead of copy/pasting the code for …
ios objective-c oop objective-c-categoryI was trying to create NSManagedObject subclasses (2 related entities) automatically in Xcode. They are generated like this: However, before I …
ios xcode nsmanagedobject objective-c-categoryHere is a situation: Hockeyapp and testflight every now and then complain about me "attempting to insert nil object" in …
ios objective-c runtime objective-c-category swizzlingI am little confused about some concepts around Objective-C protocols and categories. Can protocols and categories be inherited by subclasses …
iphone objective-c ios protocols objective-c-categoryI am using an associated reference as storage for a property of my category header file contains : @interface UIImageView (Spinning) @…
ios objective-c objective-c-categoryThere are two situations, that I am aware of, that cause the following errors: ld: warning: instance method 'resetAudioSystem' in …
ios objective-c xcode objective-c-category opentokConsider following situation: Object > MyClass > MyClassA, MyClassB If I want something in the Object level, for example, I …
java objective-c-category