Book Image

Learning Swift

By : Andrew J Wagner
Book Image

Learning Swift

By: Andrew J Wagner

Overview of this book

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Table of Contents (18 chapters)
Learning Swift
Learning Swift
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Introducing Swift
Introducing Swift
Defining our goals for this book
Setting up the development environment
Running our first Swift code
Understanding playgrounds
Learning with this book
Summary
2
Building Blocks – Variables, Collections, and Flow Control
Building Blocks – Variables, Collections, and Flow Control
Core Swift types
Swift's type system
Printing on the console
Control flow
Functions
Bringing it all together
Summary
3
One Piece at a Time – Types, Scopes, and Projects
One Piece at a Time – Types, Scopes, and Projects
Structs
Classes
Enumerations
Projects
Extensions
Scope
Access control
Summary
4
To Be or Not to Be – Optionals
To Be or Not to Be – Optionals
Introducing optionals
Unwrapping an optional
Optional chaining
Implicitly unwrapped optionals
Debugging optionals
The underlying implementation
Summary
5
A Modern Paradigm – Closures and Functional Programming
A Modern Paradigm – Closures and Functional Programming
Functional programming philosophy
Closures
Building blocks of functional programming in Swift
Lazy evaluation
Curried functions
Summary
6
Make Swift Work for You – Protocols and Generics
Make Swift Work for You – Protocols and Generics
Protocols
Defining a generic
Extending the existing generics
Putting protocols and generics to use
Summary
7
Everything is Connected – Memory Management
Everything is Connected – Memory Management
How data is stored in a computer
Value types versus reference types
Automatic reference counting
Strong reference cycles
Lost objects
Summary
8
Writing Code the Swift Way – Design Patterns and Techniques
Writing Code the Swift Way – Design Patterns and Techniques
What is a design pattern?
Behavioral patterns
Structural patterns
Creational patterns
Using associated values effectively
Extending system types to reduce code
Lazy properties
Summary
9
Harnessing the Past – Understanding and Translating Objective-C
Harnessing the Past – Understanding and Translating Objective-C
Swift's relationship with Objective-C
The history of Objective-C
Constants and variables
Containers
Control flow
Functions
Types
Projects
Calling Objective-C code from Swift
Using functions
Summary
10
A Whole New World – Developing an App
A Whole New World – Developing an App
Conceptualizing the app
Setting up the app project
Configuring the user interface
Running the app
Allowing picture taking
Temporarily saving a photo
Populating our photo grid
Refactoring to respect Model-View-Controller
Permanently saving a photo
Summary
11
What's Next? Resources, Advice, and Next Steps
What's Next? Resources, Advice, and Next Steps
Apple's documentation
Forums and blogs
Prominent figures
Podcasts
Summary
Index
Index

About the Author

Andrew J Wagner is an independent software developer who concentrates on iOS development and backend web services and has a degree in computer engineering from Rensselaer Polytechnic Institute, New York. He has also been developing his own iOS apps through his company, Learn Brigade LLC, since 2008 and has experience working with and for large-scale companies and small-scale companies. He is passionate about using computers as a creative outlet and writing software that is beautiful in implementation, functionality, and experience.

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