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iOS 13 Programming for Beginners

iOS 13 Programming for Beginners

By : Ahmad Sahar, Craig Clayton
3.8 (15)
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iOS 13 Programming for Beginners

iOS 13 Programming for Beginners

3.8 (15)
By: Ahmad Sahar, Craig Clayton

Overview of this book

iOS 13 comes with features ranging from Dark Mode and Catalyst through to SwiftUI and Sign In with Apple. If you're a beginner and are looking to experiment and work with these features to create your own apps, then this updated fourth edition gets you off to a strong start. The book offers a comprehensive introduction for programmers who are new to iOS, covering the entire process of learning the Swift language, writing your own apps, and publishing them on the App Store. This edition is updated and revised to cover the new iOS 13 features along with Xcode 11 and Swift 5. The book starts with an introduction to the Swift programming language, and how to accomplish common programming tasks with it. You'll then start building the user interface (UI) of a complete real-world app, using the latest version of Xcode, and also implement the code for views, view controllers, data managers, and other aspects of mobile apps. The book will then help you apply the latest iOS 13 features to existing apps, along with introducing you to SwiftUI, a new way to design UIs. Finally, the book will take you through setting up testers for your app, and what you need to do to publish your app on the App Store. By the end of this book, you'll be well versed with how to write and publish apps, and will be able to apply the skills you've gained to enhance your apps.
Table of Contents (33 chapters)
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1
Section 1: Swift
10
Section 2: Design
15
Section 3: Code
26
Section 4: Features

Creating LocationDataManager

Like you did in the previous chapter, you will create a data manager class to load the location data from Locations.plist and provide it to LocationsViewController. To create the data manager class, follow these steps:

  1. Right-click the Model folder in the Location folder and select New File.
  2. iOS should already be selected. Choose Swift File and click Next.
  3. Name this file LocationDataManager and click Create.
  4. After the import statement, type in the following to declare the LocationDataManager class:
class LocationDataManager {
}
  1. Inside the curly braces, add the following property to hold the list of locations:
private var locations:[String] = []

The private keyword means that the locations property may only be accessed by methods in this class.

  1. Now, add the following methods after the property declaration:
func fetch() {
for location in loadData...

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