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Swift Essentials

You're reading from   Swift Essentials Get up and running lightning fast with this practical guide to building applications with Swift

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Product type Paperback
Published in Dec 2014
Publisher
ISBN-13 9781784396701
Length 228 pages
Edition 1st Edition
Languages
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Authors (2):
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Bandlem Limited Bandlem Limited
Author Profile Icon Bandlem Limited
Bandlem Limited
Alex Blewitt Alex Blewitt
Author Profile Icon Alex Blewitt
Alex Blewitt
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Toc

Adding a navigation controller

When there are multiple screens to be displayed, a parent controller is required to keep track of which screen is currently being shown and what the next step (or previous step) is. This is the purpose of a navigation controller; although it has no direct visual representation, it is represented as a scene in a storyboard and can affect the layout of the individual elements in the storyboard.

To embed the initial scene into a navigation controller, select the initial view and navigate to Editor | Embed In | Navigation Controller. This will create a new navigation controller view and place it to the left-hand side of the first scene. It will also change the initial view controller to be the navigation controller and set up a relationship segue with the name root view controller between the navigation controller and the first scene, represented by an icon similar to a percent symbol but with the line rotated the other way, as shown here:

Adding a navigation controller

It will be necessary to...

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