April 2020
Intermediate to advanced
528 pages
15h 40m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, 7th Edition
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Tab Bar Controllers
View controllers become more interesting when the user has a way to switch between them. Throughout this book, you will learn a number of ways to present view controllers. In this chapter, you will create a UITabBarController that will allow the user to swap between the UIViewController displaying the conversion labels and the UIViewController displaying the map.
UITabBarController keeps an array of view controllers. It also maintains a tab bar at the bottom of the screen with a tab for each view controller in its array. Tapping on a tab presents the view of the view controller associated with that tab.
Open Main.storyboard and select the map view controller. From Xcode’s Editor menu, choose Embed In → Tab Bar ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.