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

Chapter 23: Getting Started with SwiftUI

In previous chapters, you created the user interface (UI) for the Let's Eat app using storyboards. The process involved dragging objects representing views onto a storyboard, creating outlets in view controller files, and connecting the two together.

This chapter will focus on SwiftUI, an easy and innovative way to create apps across all Apple platforms. Instead of using storyboards, SwiftUI uses a declarative Swift syntax, and works with new Xcode design tools to keep your code and design in sync. Features such as Dynamic Type, Dark Mode, localization, and accessibility are automatically supported.

In this chapter, you will build a simplified version of the Let's Eat app using SwiftUI. This app will just contain the Restaurant List and Restaurant Detail screens. Since writing apps with SwiftUI is very different from what you have already done, you will not be modifying the LetsEat project you have been working on. You will create...