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iOS 15 Programming for Beginners

iOS 15 Programming for Beginners

By : Ahmad Sahar, Craig Clayton
4.7 (10)
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iOS 15 Programming for Beginners

iOS 15 Programming for Beginners

4.7 (10)
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)
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1
Part 1: Swift
10
Part 2: Design
15
Part 3: Code
25
Part 4: Features

Understanding Swift Concurrency

In Swift 5.5, Apple has added support for writing asynchronous and parallel code in a structured way.

Asynchronous code allows your app to suspend and resume code. This allows your app to do things like update the user interface while still performing operations like downloading data from the internet.

Parallel code allows your app to run multiple pieces of code simultaneously.

Important Information

You can find links to all of Apple's Swift Concurrency videos during WWDC2021 at https://developer.apple.com/news/?id=2o3euotz.

You can read Apple's Swift Concurrency documentation at https://docs.swift.org/swift-book/LanguageGuide/Concurrency.html.

To give you an idea of how Swift Concurrency works, imagine that you are making a poached egg sandwich for breakfast. Here is one way of doing it:

  1. Put two slices of bread into the toaster.
  2. Wait two minutes until the bread is toasted.
  3. Put an egg in a bowl with some...
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