Book Image

iOS 14 Programming for Beginners - Fifth Edition

By : Ahmad Sahar
Book Image

iOS 14 Programming for Beginners - Fifth Edition

By: Ahmad Sahar

Overview of this book

If you're looking to work and experiment with powerful iOS 14 features such as widgets and App Clips to create your own apps, this iOS programming guide is for you. The book offers a comprehensive introduction for experienced programmers who are new to iOS, taking you through the entire process of learning the Swift language, writing your own apps, and publishing them on the App Store. Fully updated to cover the new iOS 14 features, along with Xcode 12 and Swift 5.3, this fifth edition of iOS 14 Programming for Beginners starts with an introduction to the Swift programming language and shows you 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 storyboards feature in the latest version of Xcode and implement the code for views, view controllers, data managers, and other aspects of mobile apps. The book will also help you apply iOS 14 features to existing apps and introduce you to SwiftUI, a new way to build apps for all Apple devices. Finally, you’ll set up testers for your app and understand what you need to do to publish your app on the App Store. By the end of this book, you'll not only be well versed in writing and publishing applications, but you’ll also be able to apply your iOS development skills to enhance existing apps.
Table of Contents (31 chapters)
Section 1: Swift
Section 2:Design
Section 3:Code
Section 4:Features

Understanding Swift Playgrounds

Playgrounds is an interactive coding environment. You type code in the left-hand pane, and the results are displayed immediately in the right-hand pane. It's a great way to experiment with code and to explore system APIs. Let's get started!

Important Information

API is an acronym for Application Programming Interface. To learn more, visit

  1. To create a playground, launch Xcode and choose File | New | Playground... from the Xcode menu bar:

    Figure 2.1 – Xcode menu bar with File | New | Playground... selected

  2. The template screen appears. iOS should already be selected. Choose Blank and click Next:

    Figure 2.2 – The Choose a template for your new playground: screen

  3. Name your playground SimpleValues and save it anywhere you like. Click Create when done:

Figure 2.3 – Save dialog box

You should see the playground on the screen: