User defined runtime attributes are the hidden gem of Xcode’s Interface Builder. Available since Xcode 4 and iOS 5, they provide the ability to configure properties of a view that you would otherwise be unable to configure in Interface Builder. As an advocate for the separation of concerns, I believe we should do in Interface Builder as much interface configuration as possible. Although runtime attributes are often overlooked, they can lead to much cleaner view controller code – something we
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This tutorial is intended to be a reference guide to the property attributes found in the iOS development programming language Objective-C.