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)
1
Section 1: Swift
10
Section 2:Design
15
Section 3:Code
24
Section 4:Features

Adding a widget to your Home Screen

So far, you've been testing your widget using the LetsEatWidgetExtension scheme. You'll now use the LetsEat scheme and see how to add widgets to the Home Screen. Follow these steps:

  1. Select the LetsEat scheme and iPhone SE (2nd generation) from the Scheme menu:

    Figure 24.8 – Scheme menu with LetsEat and iPhone SE selected

  2. Build and run your app. Choose Home from the Device menu.
  3. Tap and hold any app icon on the simulator's screen and choose Edit Home Screen from the pop-up menu. All the icons will start jiggling.
  4. Tap the + button to display the widget picker screen:

    Figure 24.9 – iOS simulator showing the + button

  5. Choose the LetsEat widget from the widget picker screen:

    Figure 24.10 – iOS simulator showing the widget picker screen

  6. Choose a widget size and tap Add Widget:

    Figure 24.11 – iOS simulator showing the widget size screen

  7. Position the widget anywhere you like and choose...