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


In this lesson, you learned how to create and use playground files, which allow you to explore and experiment with Swift.

You saw how Swift represents different types of data, and how to use constants and variables. This enables you to store numbers, Boolean values, and strings in your program.

You also learned about type inference, type annotation, and type safety, which help you to write code concisely and with fewer errors.

You looked at how to perform operations on numbers and strings, which lets you perform simple data processing tasks.

You learned how to fix errors, and how to print to the Debug area, which is useful when you're trying to find and fix errors in the programs that you write.

In the next chapter, you'll look at conditionals and optionals. Conditionals deal with branching in your program, and optionals deal with cases where a variable may or may not have a value.