Swift Cookbook.. E-Book

Keith Moon

• Herausgeber: Packt Publishing
• Kategorie: Fachliteratur
• Sprache: Englisch

Seitenzahl: 518

Veröffentlichungsjahr: 2021

Beschreibung

Swift is an exciting, multi-platform, general-purpose programming language, and with this book, you'll explore the features of its latest version, Swift 5.3.
The book begins with an introduction to the basic building blocks of Swift 5.3, its syntax, and the functionalities of Swift constructs. You’ll then discover how Swift Playgrounds provide an ideal platform to write, execute, and debug your Swift code. As you advance through the chapters, the book will show you how to bundle variables into tuples or sets, order your data with an array, store key-value pairs with dictionaries, and use property observers. You’ll also get to grips with the decision-making and control structures in Swift, examine advanced features such as generics and operators, and explore functionalities outside of the standard library. Once you’ve learned how to build iOS applications using UIKit, you'll find out how to use Swift for server-side programming, run Swift on Linux, and investigate Vapor. Finally, you'll discover some of the newest features of Swift 5.3 using SwiftUI and Combine to build adaptive and reactive applications, and find out how to use Swift to build and integrate machine learning models along with Apple’s Vision Framework.
By the end of this Swift book, you'll have discovered solutions to boost your productivity while developing code using Swift 5.3.

Leseprobe

Swift CookbookSecond Edition

Over 60 proven recipes for developing better iOS applications with Swift 5.3

Keith Moon

Chris Barker

BIRMINGHAM - MUMBAI

Swift CookbookSecond Edition

Copyright © 2021 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the authors, nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

Group Product Manager: Ashwin NairPublishing Product Manager: Rohit RajkumarSenior Editor:Keagan CarneiroContent Development Editor:Divya VijayanTechnical Editor:Deepesh PatelCopy Editor:Safis EditingProject Coordinator:Kinjal BariProofreader: Safis EditingIndexer:Manju ArasanProduction Designer:Alishon Mendonca

First published: September 2017 Second edition: February 2021

Production reference: 1260221

Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK.

ISBN 978-1-83921-119-5

www.packt.com

I would like to thank my amazing and supportive wife, Alissa. Without her support and patience,this book would not have been possible.

– Keith Moon

For my partner, Mandy, who is the strongest and bravest woman I have ever met, and to our beautiful daughter, Madeleine – thank you both for your love and support.For Harry and Nathan.

– Chris Barker

Contributors

About the authors

Keith Moonis an award-winning iOS developer, author, and speaker based in London. He has worked with some of the biggest companies in the world to create engaging and personal mobile experiences. Keith has been developing in Swift since its release, working on projects that are both fully Swift and mixed Swift and Objective-C. Keith has been invited to speak about Swift development at conferences from Moscow to Minsk and London.

Chris Barker is an iOS developer and tech lead for fashion retailer N Brown (JD Williams, SimplyBe, Jacamo), where he heads up the iOS team. Chris started his career developing .NET applications for online retailer dabs.com (now BT Shop) before he made his move into mobile app development with digital agency Openshadow (now MyStudioFactory Paris). There, he worked on mobile apps for clients such as Louis Vuitton, L'Oréal Paris, and the Paris Metro. Chris often attends and speaks at local iOS developer meetups and conferences such as NSManchester, Malaga Mobile, and CodeMobile.

About the reviewers

Juan Catalan is a software developer with more than 10 years of experience, having started learning iOS almost since its beginnings. He has worked as a professional iOS developer in many industries, including industrial automation, transportation, document management, fleet tracking, real estate, and financial services. Juan has contributed to more than 30 published apps, some of which have millions of users. He has a passion for software architecture, always looking for ways to write better code and optimize mobile apps.

George MacKay-Shore is an experienced software engineer who has worked in almost every field of the computing industry. His expertise ranges from embedded systems to games; from the public sector to FinTech; and all that is in between. He has a wide range of experience with many programming languages including C/C++, Swift, Java, TypeScript, and Python to name a few, and always strives to learn the newest innovative technologies.

Table of Contents

Title Page

Copyright and Credits

Swift Cookbook Second Edition

Dedication

Contributors

About the authors

About the reviewers

Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Code in Action

Download the color images

Conventions used

Sections

Getting ready

How to do it…

How it works…

There's more…

See also

Get in touch

Reviews

Swift Building Blocks

Technical requirements

Creating your first Swift program

Getting ready

How to do it...

There's more...

See also

Using Strings, Ints, Floats, and Bools

Getting ready

How to do it...

How it works...

There's more...

See also

Unwrapping optionals, and force unwrapping

Getting started

How to do it...

How it works...

There's more...

See also

Reusing code in functions

How to do it...

There's more...

Default parameter values

Parameter overloading

See also

Encapsulating functionality in object classes

How to do it...

How it works...

There's more...

See also

Bundling values into structs

Getting ready

How to do it...

How it works...

There's more...

See also

Enumerating values with enums

Getting ready

How to do it...

How it works...

There's more...

Methods and computed variables

Associated values

See also

Passing around functionality with closures

Getting ready

How to do it...

How it works...

There's more...

See also

Using protocols to define interfaces

Getting ready

How to do it...

How it works...

There's more...

See also

Mastering the Building Blocks

Technical requirements

Bundling variables into tuples

Getting ready

How to do it...

How it works...

There's more...

See also

Ordering your data with arrays

Getting started

How to do it...

How it works...

There's more...

See also

Containing your data in sets

How to do it...

How it works...

Union

Intersection

Symmetric difference

Subtracting

Membership comparison

See also

Storing key-value pairs with dictionaries

Getting ready

How to do it...

How it works...

There's more...

See also

Subscripts for custom types

Getting ready

How to do it...

How it works...

There's more...

See also

Changing your name with typealias

How to do it...

There's more...

See also

Getting property changing notifications using property observers

Getting ready

How to do it...

How it works...

There's more...

See also

Extending functionality with extensions

Getting ready

How to do it...

How it works...

There's more...

See also

Controlling access with access control

Getting ready

How to do it...

How it works...

There's more...

See also

Data Wrangling with Swift Control Flow

Technical requirements

Making decisions with if/else

Getting ready

How to do it...

How it works...

There's more...

Understanding conditional unwrapping

Chaining optional unwrapping

Using enums with associated values

See also

Handling all cases with switch

Getting ready

How to do it...

How it works...

See also

Looping with for loops

How to do it...

How it works...

See also

Looping with while loops

Getting ready

How to do it...

How it works...

There's more...

See also

Handling errors with try, throw, do, and catch

How to do it...

How it works...

There's more...

See also

Checking upfront with guard

Getting ready

How to do it...

How it works...

There's more...

See also

Doing it later with defer

Getting ready

How to do it...

How it works...

There's more...

See also

Bailing out with fatalError and precondition

Getting ready

How to do it...

How it works...

See also

Generics, Operators, and Nested Types

Technical requirements

Using generics with types

Getting ready

How to do it...

How it works...

There's more...

See also

Using generics with functions

How to do it...

How it works...

There's more...

See also

Using generics with protocols

How to do it...

How it works...

There's more...

See also

Using advanced operators

How to do it...

See also

Defining option sets

How to do it...

How it works...

See also

Creating custom operators

Getting ready

How to do it...

How it works...

There's more...

See also

Nesting types and namespacing

How to do it...

How it works...

There's more...

See also

Beyond the Standard Library

Technical requirements

Comparing dates with Foundation

Getting ready

How to do it...

How it works...

See also

Fetching data with URLSession

Getting ready

How to do it...

How it works...

See also

Working with JSON

Getting ready

How to do it...

There's more...

Working with XML

Getting ready

How to do it...

How it works...

There's more...

See also

Building iOS Apps with Swift

Technical requirements

Building an iOS App using Cocoa Touch

Getting ready

How to do it...

How it works...

There's more...

See also

Unit and integration testing with XCTest

Getting ready

How to do it...

How it works...

There's more...

See also

User interface testing with XCUITest

Getting ready

How to do it...

There's more...

See also

Backward compatibility

How to do it...

There's more...

See also

Swift Playgrounds

Technical requirements

Using Swift Playgrounds for UI

Getting ready

How to do it...

How it works...

There's more...

See also

Importing resources into playgrounds

Getting ready

How to do it...

How it works...

See also

Importing code into playgrounds

Getting ready

How to do it...

How it works...

See also

Multi-page playgrounds

Getting ready

How to do it...

How it works...

There's more...

See also

Using Swift Playgrounds on iPadOS

Getting ready

How to do it...

How it works...

There's more

See also

Server-Side Swift

Technical requirements

Running Swift on Linux

Getting started

How to do it...

There's more...

Building a REST API using Vapor and Fluent

Getting started

How to do it...

How it works...

There's more...

See also

Database persistence with Fluent and Postgres

Getting ready

How to do it...

How it works...

See also

Hosting your Vapor app on Heroku

Getting started

How to do it...

See also

The Swift Package Manager

Getting started

How to do it...

How it works...

There's more...

See also

Real-time communication using WebSockets

Getting started

How to do it...

How it works...

There's more...

See also

Packaging and sharing models between server and app

Getting started

How to do it...

How it works...

There's more...

Performance and Responsiveness in Swift

Technical requirements

Value and reference semantics

Getting ready

How to do it...

How it works...

See also

Using Dispatch queues for concurrency

Getting ready

How to do it...

How it works...

See also

Concurrent queues and dispatch groups

Getting ready

How to do it...

How it works...

See also

Implementing the operation class

Getting ready

How to do it...

How it works...

See also

SwiftUI and Combine Framework

Technical requirements

Declarative syntax

Getting ready

How to do it...

How it works...

There's more...

See also

Function builders, property wrappers, and opaque return types

Getting ready

How to do it...

There's more...

See also

Building simple views in SwiftUI

Getting ready

How to do it...

How it works...

There's more...

See also

Combine and data flow in SwiftUI

Getting ready

How to do it...

How it works...

See also

Using CoreML and Vision in Swift

Technical requirements

Building an image capture app

Getting ready

How to do it...

How it works...

There's more...

See also

Using CoreML models to detect objects in images

Getting ready

How to do it...

How it works...

There's more...

See also

Building a video capture app

Getting ready

How to do it...

How it works...

There's more...

See also

Using CoreML and the Vision Framework to detect objects in real time

Getting ready

How to do it...

How it works...

See also

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