February 2014
Intermediate to advanced
560 pages
18h 58m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide
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6 View Controllers
In Chapter 5, you created a view hierarchy (a scroll view with two subviews) and presented it on screen by explicitly adding the scroll view as a subview of the application’s window. It is more common to do this using a view controller.
A view controller is an instance of a subclass of UIViewController. A view controller manages a view hierarchy. It is responsible for creating view objects that make up the hierarchy, for handling events associated with the view objects in its hierarchy, and for adding its hierarchy to the window.
In this chapter, you will create an application named HypnoNerd. In HypnoNerd, the user will be able to switch between two view hierarchies – one for being hypnotized and the other ...
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