Home > Store

Learning Swift 2 Programming, 2nd Edition

Register your product to gain access to bonus material or receive a coupon.

Learning Swift 2 Programming, 2nd Edition

eBook (Watermarked)

  • Your Price: $29.43
  • List Price: $36.79
  • Includes EPUB and PDF
  • About eBook Formats
  • This eBook includes the following formats, accessible from your Account page after purchase:

    ePub EPUB The open industry format known for its reflowable content and usability on supported mobile devices.

    Adobe Reader PDF The popular standard, used most often with the free Acrobat® Reader® software.

    This eBook requires no passwords or activation to read. We customize your eBook by discreetly watermarking it with your name, making it uniquely yours.


  • Copyright 2016
  • Dimensions: 7" x 9"
  • Pages: 256
  • Edition: 2nd
  • eBook (Watermarked)
  • ISBN-10: 0-13-443165-0
  • ISBN-13: 978-0-13-443165-9

Get started fast with Swift 2 programming for iOS and OS X

Learning Swift 2 Programming
is a fast-paced, hands-on introduction to writing production-quality iOS and OS X apps with Apple’s programming language. Written for developers with experience in any modern language, this book explains Swift simply and clearly, using relevant examples that solve realistic problems.

Author Jacob Schatz’s popular YouTube video tutorials have already helped thousands of Apple developers get started with Swift. Now, he helps you take full advantage of Swift’s advanced design, remarkable performance, and streamlined development techniques.

Step by step, you’ll move from basic syntax through advanced features such as closures and generics—discovering helpful tips and tricks along the way. After you’ve mastered Swift’s building blocks and learned about its key innovations, a full section of case studies walks you through building complete apps from scratch.

Learn how to:

  • Compare Swift with Objective-C, JavaScript, Python, Ruby, and C
  • Collect data with arrays and dictionaries, and store it with variables and constants
  • Group commonly used code into functions for easy reuse
  • Structure your code with enums, structs, and classes
  • Use generics to get more done with less code
  • Write closures to share small blocks of functionality
  • Use optionals to write more robust, crash-resistant, and cleaner code
  • Integrate existing Objective-C code into new Swift apps
  • Program on the bit and byte levels with advanced operators
  • Implement efficient design patterns with protocols and delegates
  • Create animated 2D games with SpriteKit, and apps with UIKit

Sample Content

Table of Contents

Introduction 1

1 Getting Your Feet Wet: Variables, Constants, and Loops 5
Building Blocks of Swift 6
    Computed Properties (Getters and Setters) 6
    Using Comments 8
    Inference 8
Merging Variables into a String 10
Optionals: A Gift to Unwrap 11
    Printing Your Results 14
    Implicitly Unwrapped Optionals 14
Tuples 15
Number Types 16
From Objective-C to Swift 17
    Control Flow: Making Choices 18
    Switching It Up: switch Statements 25
    Stop...Hammer Time 28
Summary 29

2 Collecting Your Data: Arrays and Dictionaries 31
Using Arrays 31
    Your First Array the Long Way 31
    A Quicker Array 32
    Using AnyObject 32
    Differences Between NSArrays and Swift Arrays 33
Modifying Arrays 33
    Accessing Array Elements 33
    Adding Elements to an Array 34
    Removing Elements from Arrays 34
    Iterating Over Arrays 35
    Extra Bits of Arrays 35
    Emptying an Array 36
Using Dictionaries 36
    Adding, Removing, and Inserting with Dictionaries 37
    Iterating Over Dictionaries 37
    Extra Bits of Dictionaries 38
    Emptying a Dictionary 38
    Testing Dictionaries for the Presence of Values 38
    Putting It All Together 39
Summary 41

3 Making Things Happen: Functions 43
Defining Functions 44
    Return Types 45
    Multiple Return Values 46
More on Parameters 47
    External Parameter Names 47
    Default Parameter Values 48
    Variadic Parameters 49
    In-Out Parameters 50
    Functions as Types 51
    Putting It All Together 52
Summary 55

4 Structuring Code: Enums, Structs, and Classes 57
Enums 58
    Which Member Was Set? 59
    Associated Values 59
    Raw Values 60
Structs 61
    Defining Methods in Structs 63
    Structs Are Always Copied 64
    Mutating Methods 65
    Classes 66
    Initialization 66
    What Is a Reference Type? 68
    Do I Use a Struct or a Class? 68
    Forgot Your Pointer Syntax? 69
    Property Observers 69
    Methods in Classes 70
Summary 74

5 SpriteKit 75
Introducing SpriteKit 75
    The SKNode and SKSpriteNode 75
Creating a Game 76
    The New Project Screen 76
    The Game 85
Summary 92

6 Reusable Code: Closures 93
What Are Closures? 93
Closures in Other Languages 94
How Closures Work and Why They’re Awesome 95
    The Closure Syntax 96
    Inferring Using Context 96
    Arguments Have a Shorthand, Too 97
    Sorting a Custom Car Class 97
    Closures Are Reference Types 98
    Automatic Reference Counting 99
    Strong Reference Cycles 100
    Trailing Closures 106
Summary 107

7 Creating Your Own Syntax: Subscripts and Advanced Operators 109

Writing Your First Subscript 110
Bits and Bytes with Advanced Operators 113
    Bitwise NOT 114
    Bitwise AND 115
    Bitwise OR 116
    Bitwise XOR 117
    Shifting Bits 118
    UInt8, UInt16, UInt32, Int8, Int16, Int32, and So On 119
    Value Overflow and Underflow 119
Customizing Operators 120
Making Your Own Operators 122
Bits and Bytes in Real Life 123
Summary 127

8 Protocols 129
Writing Your First Protocol 129
    Properties 131
Animizable and Humanizable 134
    Methods 135
Delegation 136
Protocols as Types 138
Protocols in Collections 139
    Protocol Inheritance 140
    Protocol Composition 141
    Protocol Conformity 143
    Optional Protocol Prerequisites 145
Optional Chaining 146
    Back to Optional Protocol Requisites 148
    Useful Built-in Swift Protocols 149
Summary 151

9 Becoming Flexible with Generics 153
The Problem That Generics Solve 153
    Other Uses for Generics 155
    Generics for Protocols 157
    The where Clause 158
Summary 162

10 Games with SpriteKit 163
The Game 163
The Setup 163
Tour the Code 164
The Game 164
    Step 1: Create the World 165
    Step 2: Making Things Move 176
Summary 185

11 Making Games with Physics 187
Making a Physics-Based Game 187
    Creating the Project 188
    Adding the Assets 189
    Adding the Levels 189
    Generating the Levels 190
    Making a Playable Game 197
    Creating the Cage 199
Summary 204

12 Making Apps with UIKit 205
Application Types 205
    Single-View Applications 206
    Creating the User Interface 208
    Adding Constraints 209
    Hooking Up the UI to Code 211
    Writing the Code 212
    The TableView 216
Summary 218

Index 219


Submit Errata

More Information

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020