Book Image

iOS 15 Programming for Beginners - Sixth Edition

By : Ahmad Sahar, Craig Clayton
5 (1)
Book Image

iOS 15 Programming for Beginners - Sixth Edition

5 (1)
By: Ahmad Sahar, Craig Clayton

Overview of this book

With almost 2 million apps on the App Store, iOS mobile apps continue to be incredibly popular. Anyone can reach millions of customers around the world by publishing their apps on the App Store. iOS 15 Programming for Beginners is a comprehensive introduction for those who are new to iOS. It covers the entire process of learning the Swift language, writing your own app, and publishing it on the App Store. Complete with hands-on tutorials, projects, and self-assessment questions, this easy-to-follow guide will help you get well-versed with the Swift language to build your apps and introduce exciting new technologies that you can incorporate into your apps. You'll learn how to publish iOS apps and work with Mac Catalyst, SharePlay, SwiftUI, Swift concurrency, and much more. By the end of this iOS development book, you'll have the knowledge and skills to write and publish interesting apps, and more importantly, to use the online resources available to enhance your app development journey.
Table of Contents (32 chapters)
1
Part 1: Swift
10
Part 2: Design
15
Part 3: Code
25
Part 4: Features

Setting up the Launch screen

The Launch screen refers to the screen that is displayed briefly as your app is starting up. You can configure it by modifying the LaunchScreen storyboard file in your project. This file is automatically created when you create an Xcode project.

You will create a new custom color for this screen, add an icon from the Assets.xcassets folder, and set the icon's location using Auto Layout constraints.

Important Information

For more information on Auto Layout and how to use it, see this link: https://developer.apple.com/library/archive/documentation/UserExperience/Conceptual/AutolayoutPG/.

You'll start by creating a new custom color in the next section.

Configuring the Launch screen's background color

The Attributes inspector can be used to modify the colors of the UI elements on screen. You can specify the precise color you want by using custom red, green and blue values. You'll set a custom color for the Launch screen...