Learning Swift

Cover --
Copyright --
Credits --
About the Author --
About the Reviewer --
www.PacktPub.com --
Table of Contents --
Preface --
Chapter 1: 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 --
Chapter 2: Building Blocks --
Variables, Collections, and Flow Control --
Core Swift types --
Constants and variables --
Containers --
Tuples --
Arrays --
Dictionaries --
Swift's type system --
Printing to the console --
Control flow --
Conditionals --
Switches --
Loops --
Functions --
Basic functions --
Parameterized functions --
Functions that return values --
Functions with default arguments --
Guard statement --
Bringing it all together --
Summary --
Chapter 3: One Piece at a Time --
Types, Scopes, and Projects --
Structs --
Types versus instances --
Properties --
Member and static methods --
Computed properties --
Reacting to property changes --
Subscripts --
Custom initialization --
Classes --
Inheriting from another class --
Initialization --
Overriding initializer --
Required initializer --
Designated and convenience initializers --
Overriding methods and computed properties --
Methods --
Computed properties --
Casting --
Upcasting --
Downcasting --
Enumerations --
Basic declaration --
Testing enumeration values --
Raw values --
Associated values --
Methods and properties --
Projects --
Setting up a command-line Xcode project --
Creating and using an external file --
Interfacing with code from other files --
File organization and navigation --
Extensions --
Scope --
How scope is defined --
Nested types --
Access control --
Summary --
Chapter 4: To Be or Not to Be --
Optionals --
Defining an optional --
Unwrapping an optional --
Optional binding --
Forced unwrapping --
Nil coalescing --
Optional chaining. Implicitly unwrapped optionals --
Debugging optionals --
The underlying implementation --
Summary --
Chapter 5: A Modern Paradigm --
Closures and Functional Programming --
Functional programming philosophy --
State and side effects --
Declarative versus imperative code --
Closures --
Closures as variables --
Closures as parameters --
Syntactic sugar --
Building blocks of functional programming in Swift --
Filter --
Reduce --
Map --
Sort --
How these affect the state and nature of code --
Lazy evaluation --
Example --
Summary --
Chapter 6: Make Swift Work for You --
Protocols and Generics --
Protocols --
Defining a protocol --
Implementing a protocol --
Using type aliases --
Generics --
Generic function --
Generic type --
Type constraints --
Protocol constraints --
Where clauses for protocols --
Where clauses for equality --
Extending generics --
Adding methods to all forms of a generic --
Adding methods to only certain instances of a generic --
Extending protocols --
Putting protocols and generics to use --
Generators --
Sequences --
Product of Fibonacci numbers under 50 --
Summary --
Chapter 7: Everything is Connected --
Memory Management --
Computer data storage --
File system --
Memory --
Value types versus reference types --
Determining value type or reference type --
Behavior on assignment --
Behavior on input --
Closure capture behavior --
Automatic reference counting --
Object relationships --
Strong --
Weak --
Unowned --
Strong reference cycles --
Between objects --
Spotting --
Fixing --
With closures --
Spotting --
Fixing --
Lost objects --
Between objects --
With closures --
Structures versus classes --
Summary --
Chapter 8: Paths Less Travelled --
Error Handling --
Throwing errors --
Defining an error type --
Defining a function that throws an error --
Implementing a function that throws an error --
Handling errors --
Forceful try. Optional try --
Catching an error --
Propagating errors --
Cleaning up in error situations --
Order of execution when errors occur --
Deferring execution --
Summary --
Chapter 9: Writing Code the Swift Way --
Design Patterns and Techniques --
What is a design pattern? --
Behavioral patterns --
Iterator --
Observer --
Callback --
Notification center --
Structural patterns --
Composite --
Hierarchies --
Alternative to subclassing --
Delegate --
Model view controller --
Creational patterns --
Singleton/shared instance --
Abstract factory --
Using associated values effectively --
Replacing class hierarchies --
Concisely representing state --
Extending system types to reduce code --
Lazy properties --
Avoiding unnecessary memory usage --
Avoiding unnecessary processing --
Localizing logic to the concerned property --
Summary --
Chapter 10: Harnessing the Past --
Understanding and Translating Objective-C --
Swift's relationship to Objective-C --
Background of Objective-C --
Constants and variables --
Value types --
Reference types --
Containers --
Arrays --
Dictionaries --
Control flow --
Conditionals --
Switches --
Loops --
Functions --
Types --
Structures --
Enumerations --
Classes --
Basic class --
Initializers --
Properties --
Methods --
Inheritance --
Categories --
Protocols --
Blocks --
Projects --
Header files --
Implementation files --
Organization --
Calling Objective-C code from Swift --
Bridging header --
Using functions --
Using types --
Containers --
Annotations --
Nullability --
Container element types --
Summary --
Chapter 11: A Whole New World --
Developing an App --
Conceptualizing the app --
Features --
Interface --
Data --
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 --
Chapter 12: What's Next? --
Resources, Advice, and the Next Steps --
Apple's documentation --
Forums and blogs --
Blog posts --
Forums --
Prominent figures --
Podcasts --
Summary --
Index.