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Understanding Objective-C Blocks

A large portion of the code that we write for iOS apps is event driven.  An event occurs (such as an app being moved to the background, a view being loaded, a user tapping on the screen, etc.), and our code is called by the OS to see how we want to react.  There are...

Xcode Assets (*.xcassets)

When Xcode 5 was released, users noticed new projects included a file called “Images.xcassets.” Despite how it appears in the project navigator, this is not a single flat file.  Rather, it’s a resource bundle – known as an “asset...