Application Development with Swift 2 (Video 21)

This video tutorial explains how to use segues in iOS app development. It covers embedding view controllers within a UI navigation controller, adding a UI bar button item, and implementing a basic segue to navigate between view controllers. The tutorial demonstrates creating a segue in the storyboard and adding a bar button to the navigation bar. It concludes with a test run of the implemented segue and a preview of the next video, which will focus on passing objects between view controllers.

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