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Swift in 24 Hours, Sams Teach Yourself BJ Miller

Swift in 24 Hours, Sams Teach Yourself By BJ Miller

Swift in 24 Hours, Sams Teach Yourself by BJ Miller

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Swift in 24 Hours, Sams Teach Yourself Summary

Swift in 24 Hours, Sams Teach Yourself by BJ Miller

In just 24 lessons of one hour or less, Sams Teach Yourself Swift in 24 Hours, Second Edition, will teach you how to build next-generation OS X and iOS apps with Apple's Swift 2 programming language. This book's straightforward, step-by-step approach helps you quickly master Swift 2's core concepts, structure, and syntax and use Swift to write safe, powerful, modern code. In just a few hours you'll be applying features such as extensions, closures, protocols, and generics. Every lesson builds on what you've already learned, giving you a rock-solid foundation for real-world success. Step-by-step instructions carefully walk you through the most common Swift 2 programming tasks. Practical, hands-on examples show you how to apply what you learn. Quizzes and exercises help you test your knowledge and stretch your skills. Notes and tips point out shortcuts and solutions. Learn how to... Get started with Swift 2.0's Xcode 7 development environment Master Swift's fundamental data types Use operators to change, assign, combine, check, or verify values Retain data and preferences in memory with arrays, sets, and dictionaries Control program flow, modify execution paths, and iterate code Perform complex actions concisely with Swift 2.0's improved functions Work with higher-order functions and closures Harness the power of structs, enums, classes, and class inheritance Take advantage of Swift's advanced memory allocation and references Use protocols to define behavior and explore Protocol-Oriented Programming Add type functionality with extensions Smoothly handle errors Leverage the power of generics to create flexible and reusable code Interoperate with Objective-C code Get started with Functional Programming approaches and thinking functionally

About BJ Miller

BJ Miller is an iOS developer for DXY Solutions, a mobile, web, and design consultancy in the Cleveland, Ohio, area. BJ earned his B.S. in Computer Science from Baldwin-Wallace College (now called Baldwin-Wallace University) in Berea, Ohio, the town where he grew up. His latest career path encompassed large-scale enterprise network administration, SQL database administration, and Microsoft SharePoint Server and Microsoft Project Server administration and integration as a contractor for the United States Department of Defense, with all the Microsoft certifications that come along with that. Before that, he spent several years in LAN engineering, designing and implementing network infrastructure, as a Cisco Certified Network Associate. BJ began iOS development in 2009 after not having programmed for a few years, and he developed a passion for the platform and the Objective-C language. Now, his love has expanded to include Swift, and there is still yet room in his heart for more. In 2013, he released his first app into the iOS App Store, called MyPrayerMap, as a simple tool for managing prayer requests. When he is not writing in Objective-C or Swift for either work or this book, he enjoys spending time with his wife and two boys, reading, listening to music or podcasts, and playing The Legend of Zelda (any game on any system will do). He also co-organizes the Cleveland CocoaHeads Meetup with Daniel Steinberg, http://www.meetup.com/Cleveland- CocoaHeads/, and organizes a submeetup of that group called Paired Programming Fun, which is a casual meetup where the focus is on Test-Driven Development (TDD) in Swift in paired-programming style. BJ often presents iOS-related topics at CocoaHeads and also speaks at other conferences such as MacTech, CocoaConf (Columbus, Ohio), and CodeMash v2.0.1.5. He also blogs from time to time at http://bjmiller.me and is on Twitter as @bjmillerltd.

Table of Contents

Introduction xiv Who Should Read This Book? xv What Should You Expect from This Book? xvi HOUR 1: Introducing the Swift Development Environment 1 What Is Swift? 1 Getting Started 2 Summary 10 Q&A 11 Workshop 11 Exercise 12 HOUR 2: Learning Swift's Fundamental Data Types 13 Constants in Swift 13 Variables in Swift 14 Introducing Data Types 15 Summary 23 Q&A 24 Workshop 24 Exercise 25 HOUR 3: Using Operators in Swift 27 Unary Operators 27 Binary Operators 29 Ternary Conditional Operators 35 Summary 36 Q&A 36 Workshop 37 Exercise 37 HOUR 4: Working with Collection Types 39 Arrays 39 Dictionaries 47 Sets 51 Tuples 55 Summary 56 Q&A 56 Workshop 57 Exercise 57 HOUR 5: Controlling Program Flow with Conditionals 59 The if Statement 59 The switch Statement 64 Summary 73 Q&A 74 Workshop 74 Exercise 75 HOUR 6: Understanding Optional Values 77 What Are Optional Values? 77 How to Designate a Variable as Optional 78 Wrapping and Unwrapping Optional Variables 79 Use Case for Optionals 85 Summary 87 Q&A 87 Workshop 87 Exercise 88 HOUR 7: Iterating Code with Loops 89 Two Categories of Loops 89 Transferring Control in Loops 102 Summary 104 Q&A 104 Workshop 104 Exercise 106 HOUR 8: Using Functions to Perform Actions 107 The Nature of Functions in Swift 108 General Function Syntax and Structure 108 Functions with No Parameters and No Return Type 110 The Type of a Function 110 Functions with Parameters 111 Functions with Variadic Parameters 113 Functions with Return Types 114 External Parameter Names 118 Default Parameter Values 120 Change Argument Values with In-Out Parameters 120 Exiting Early 121 Deferring Execution 122 Summary 123 Q&A 124 Workshop 124 Exercise 125 HOUR 9: Understanding Higher Order Functions and Closures 127 Higher Order Functions 127 Closures 134 Summary 143 Q&A 144 Workshop 144 Exercise 145 HOUR 10: Learning About Structs and Classes 147 Overview of Structs and Classes in Swift 147 What Swift Structs and Classes Have in Common 149 Differences Between Structs and Classes 157 When to Use a Class or a Struct 160 Summary 161 Q&A 161 Workshop 162 Exercise 163 HOUR 11: Implementing Class Inheritance 165 What Is Inheritance? 165 Identifying a Base Class 166 Creating a Subclass 167 Overriding Inherited Methods 169 Accessing super 172 Preventing Overrides 174 Class Identity 176 When to Use Class Inheritance 177 Summary 178 Q&A 179 Workshop 179 Exercise 181 HOUR 12: Harnessing the Power of Enums 183 Understanding Swift Enums 183 Swift Enum Structure 184 Raw Values 185 Enum Shorthand Syntax 187 Associated Values 189 Switching Enum Values 190 Adding Instance Methods to Enums 192 Summary 195 Q&A 195 Workshop 196 Exercise 197 HOUR 13: Customizing Initializers of Classes, Structs, and Enums 199 Initialization 199 Initializing Value Types 201 Advanced Initialization 209 Summary 217 Q&A 218 Workshop 218 Exercise 219 HOUR 14: Digging Deeper with Properties 221 Stored Properties 221 Computed Properties 224 Property Accessors 225 Property Observers 228 Inheriting and Overriding Accessors 231 Inheriting and Overriding Observers 233 Summary 236 Q&A 236 Workshop 237 Exercise 237 HOUR 15: Adding Advanced Type Functionality 239 Type Properties and Methods 239 Type Aliasing 246 Type Access Control 247 Subscripts 249 Type Casting and Non-Specific Types 253 Summary 257 Q&A 258 Workshop 258 Exercise 259 HOUR 16: Understanding Memory Allocation and References 261 Deinitialization 261 Automatic Reference Counting 265 Summary 275 Q&A 276 Workshop 277 Exercise 277 HOUR 17: Using Protocols to Define Behavior 279 Defining Protocols 279 Creating and Adopting Protocols 280 Properties 281 Defining Methods in Protocols 282 Using Protocol Names as Types 284 Adopting and Inheriting Multiple Protocols 285 Optional Protocol Properties and Methods 290 How to Check for Protocol Conformance 291 Using Protocols for Delegation 292 Summary 297 Q&A 298 Workshop 298 Exercise 299 HOUR 18: Using Extensions to Add Type Functionality 301 Defining Extensions 301 Adding Functionality with Extensions 303 Summary 313 Q&A 313 Workshop 313 Exercise 314 HOUR 19: Working with Optional Chaining 315 Defining Optional Chaining 315 Chaining Optional Properties 316 Subscripts 318 Methods 322 Summary 324 Q&A 325 Workshop 325 Exercise 326 HOUR 20: Introducing Generics 327 An Introduction to Generics 327 Type Parameters and Placeholder Types 328 Specifying Type Constraints 329 Creating Generic Types 333 Extending Generic Types 336 Using Associated Types in Protocols 337 Summary 339 Q&A 340 Workshop 340 Exercise 341 HOUR 21: Understanding Protocol-Oriented Programming 343 A Quick Recap of Protocols 343 Implementing Protocols 344 Introducing Protocol Extensions 344 Creating Protocol Extensions 346 What Is and Isn't Customizable 349 Type Constraints in Protocol Extensions 352 Homogeneous and Heterogeneous Collections 353 Converting Protocol Sequences 355 Summary 357 Q&A 357 Workshop 358 Exercise 359 HOUR 22: Handling Errors 361 Error Handling 361 Swift Error Handling 363 Summary 374 Q&A 375 Workshop 376 Exercise 376 HOUR 23: Adding Interoperability with Objective-C 377 Objective-C Basics 377 Bridging 384 Integrating Swift into an Objective-C App 387 Summary 399 Q&A 399 Workshop 400 Exercise 400 HOUR 24: Functional Thinking in Swift 403 What Is Functional Programming? 403 Thinking in Terms of Functions 404 Summary 418 Q&A 419 Workshop 419 Exercise 420 Index 421

Additional information

GOR010435050
9780672337659
0672337657
Swift in 24 Hours, Sams Teach Yourself by BJ Miller
BJ Miller
Sams Teach Yourself
Used - Very Good
Hardback
Pearson Education (US)
2015-11-22
464
N/A
Book picture is for illustrative purposes only, actual binding, cover or edition may vary.
This is a used book - there is no escaping the fact it has been read by someone else and it will show signs of wear and previous use. Overall we expect it to be in very good condition, but if you are not entirely satisfied please get in touch with us

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