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  • Book Overview & Buying Learning Swift
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Learning Swift

Learning Swift

By : Andrew J Wagner
4.8 (5)
Buy this Book
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Learning Swift

Learning Swift

4.8 (5)
By: Andrew J Wagner
Buy this Book

Overview of this book

If you are looking to build iOS or OS X apps using the most modern technology, this book is ideal for you. You will find this book especially useful if you are new to programming or if you have yet to develop for iOS or OS X.
Table of Contents (13 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Introducing Swift
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1. Introducing Swift
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Defining our goals for this book
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Setting up the development environment
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Running our first Swift code
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Understanding playgrounds
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Learning with this book
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Summary
2
2. Building Blocks – Variables, Collections, and Flow Control
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2. Building Blocks – Variables, Collections, and Flow Control
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Core Swift types
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Swift's type system
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Printing on the console
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Control flow
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Functions
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Bringing it all together
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Summary
3
3. One Piece at a Time – Types, Scopes, and Projects
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3. One Piece at a Time – Types, Scopes, and Projects
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Structs
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Classes
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Enumerations
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Projects
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Extensions
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Scope
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Access control
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Summary
4
4. To Be or Not to Be – Optionals
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4. To Be or Not to Be – Optionals
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Introducing optionals
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Unwrapping an optional
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Optional chaining
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Implicitly unwrapped optionals
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Debugging optionals
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The underlying implementation
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Summary
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5. A Modern Paradigm – Closures and Functional Programming
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5. A Modern Paradigm – Closures and Functional Programming
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Functional programming philosophy
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Closures
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Building blocks of functional programming in Swift
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Lazy evaluation
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Curried functions
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Summary
6
6. Make Swift Work for You – Protocols and Generics
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6. Make Swift Work for You – Protocols and Generics
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Protocols
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Defining a generic
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Extending the existing generics
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Putting protocols and generics to use
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Summary
7
7. Everything is Connected – Memory Management
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7. Everything is Connected – Memory Management
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How data is stored in a computer
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Value types versus reference types
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Automatic reference counting
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Strong reference cycles
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Lost objects
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Summary
8
8. Writing Code the Swift Way – Design Patterns and Techniques
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8. Writing Code the Swift Way – Design Patterns and Techniques
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What is a design pattern?
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Behavioral patterns
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Structural patterns
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Creational patterns
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Using associated values effectively
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Extending system types to reduce code
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Lazy properties
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Summary
9
9. Harnessing the Past – Understanding and Translating Objective-C
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9. Harnessing the Past – Understanding and Translating Objective-C
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Swift's relationship with Objective-C
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The history of Objective-C
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Constants and variables
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Containers
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Control flow
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Functions
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Types
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Projects
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Calling Objective-C code from Swift
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Using functions
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Summary
10
10. A Whole New World – Developing an App
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10. A Whole New World – Developing an App
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Conceptualizing the app
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Setting up the app project
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Configuring the user interface
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Running the app
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Allowing picture taking
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Temporarily saving a photo
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Populating our photo grid
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Refactoring to respect Model-View-Controller
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Permanently saving a photo
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Summary
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11. What's Next? Resources, Advice, and Next Steps
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11. What's Next? Resources, Advice, and Next Steps
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Apple's documentation
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Forums and blogs
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Prominent figures
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Podcasts
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Summary
12
Index
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Index

Setting up the development environment

In order to use Swift, you will need to have a Mac running OS X. The only piece of software you will need is called Xcode (version 6 and higher). This is the environment that Apple provides to facilitate development for its platforms. You can download Xcode for free from the Mac App Store at www.appstore.com/mac/Xcode.

Once downloaded and installed, you can open the app and it will install the rest of Apple's developer tool components. It is as simple as that! We are now ready to run our first piece of Swift code.

Tip

Downloading the example code

You can download the example code files for all Packt books you have purchased from your account at http://www.packtpub.com. If you purchased this book elsewhere, you can visit http://www.packtpub.com/support and register to have the files e-mailed directly to you.

End of Section 3
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