App Development with Swift

My solutions to the exercises in Apple's free App Development with Swift textbook.

Contents

1. Getting Started with App Development

1.1 Introduction to Swift and Playgrounds

• 1.1.0 Hello, world! (Lesson)
• 1.1.1 Use Playgrounds (Exercise)

1.2 Constants, Variables and Data Types

• 1.2.0 Constants (Lab)
• 1.2.1 Constants (Exercise)
• 1.2.2 Step Goal (App Exercise)
• 1.2.3 Variables (Exercise)
• 1.2.4 Step Count (App Exercise)
• 1.2.5 Constant or Variable? (Exercise)
• 1.2.6 Fitness Tracker: Constant or Variable? (App Exercise)
• 1.2.7 Types and Type Safety (Exercise)
• 1.2.8 Tracking Different Types (App Exercise)
• 1.2.9 Type Inference and Required Values (Exercise)
• 1.2.10 Percent Completed (App Exercise)

1.3 Operators

• 1.3.0 Operators (Lab)
• 1.3.1 Basic Arithmetic (Exercise)
• 1.3.2 Fitness Calculations (App Exercise)
• 1.3.3 Compound Assignment (Exercise)
• 1.3.4 Counting (App Exercise)
• 1.3.5 Order of Operations (Exercise)
• 1.3.6 Complex Fitness Calculations (App Exercise)
• 1.3.7 Numeric Type Conversion (Exercise)
• 1.3.8 Converting Types (App Exercise)

1.4 Control Flow

• 1.4.0 Control Flow (Lab)
• 1.4.1 Logical Operators (Exercise)
• 1.4.2 If and If-Else Statements (Exercise)
• 1.4.3 Fitness Decisions (App Exercise)
• 1.4.4 Boolean Practice (Exercise)
• 1.4.5 Target Heart Rate (App Exercise)
• 1.4.6 Switch Statements (Exercise)
• 1.4.7 Heart Rate Zones (App Exercise)
• 1.4.8 Ternary Operator (Exercise)
• 1.4.9 Ternary Messages (App Exercise)

1.8 Interface Builder Basics

• 1.8.0 IBBasics (Lesson)
• 1.8.1 InterfaceBuilderBasics (Lab)

2. Introduction to UIKit

2.1 Strings

• 2.1.0 Strings (Lab)
• 2.1.1 String Basics (Exercise)
• 2.1.2 Concatenation and Interpolation (Exercise)
• 2.1.3 Notifications (App Exercise)
• 2.1.4 String Equality and Comparison (Exercise)
• 2.1.5 Password Entry and User Search (App Exercise)

2.2 Functions

• 2.2.0 Functions (Lab)
• 2.2.1 Create Functions (Exercise)
• 2.2.2 A Functioning App (App Exercise)
• 2.2.3 Parameters and Argument Labels (Exercise)
• 2.2.4 Progress Updates (App Exercise)
• 2.2.5 Return Values (Exercise)
• 2.2.6 Separating Functions (App Exercise)

2.3 Structures

• 2.3.0 Structures (Lab)
• 2.3.1 Structs, Instances, and Default Values (Exercise)
• 2.3.2 Workout Tracking (App Exercise)
• 2.3.3 Memberwise and Custom Initializers (Exercise)
• 2.3.4 Users and Distance (App Exercise)
• 2.3.5 Methods (Exercise)
• 2.3.6 Workout Functions (App Exercise)
• 2.3.7 Computed Properties and Property Observers (Exercise)
• 2.3.8 Mile Times and Congratulations (App Exercise)
• 2.3.9 Type Properties and Methods (Exercise)
• 2.3.10 Type Properties and Methods (App Exercise)

2.4 Classes, Inheritance

• 2.4.0 Classes (Lab)
• 2.4.1 Define a Base Class (Exercise)
• 2.4.2 Create a Subclass (Exercise)
• 2.4.3 Override Methods and Properties (Exercise)
• 2.4.4 Class Memberwise Initializers and References (Exercise)

2.5 Collections

• 2.5.0 Collections (Lab)
• 2.5.1 Arrays (Exercise)
• 2.5.2 Activity Challenge (App Exercise)
• 2.5.3 Dictionaries (Exercise)
• 2.5.4 Pacing (App Exercise)

2.6 Loops

• 2.6.0 Loops (Lab)
• 2.6.1 For-In Loops (Exercise)
• 2.6.2 Movements (App Exercise)
• 2.6.3 While Loops (Exercise)
• 2.6.4 While Loops (App Exercise)
• 2.6.5 Control Transfer Statements (Exercise)
• 2.6.6 Finding Movements (App Exercise)

2.7 Introduction to UIKit

2.8 Displaying Data

• 2.8.0 Hello (Lesson)

2.9 Controls in Action

• 2.9.0 CommonInputControls (Lesson)
• 2.9.1 Two Buttons (Lab)

2.10 Auto Layout and Stack Views

• 2.10.0 AutoLayoutPractice (Lesson)
• 2.10.1 Calculator (Lab)

3. Navigation and Workflows

3.1 Optionals

• 3.1.0 Optionals (Lab)
• 3.1.1 Optionals (Exercise)
• 3.1.2 Finding a Heart Rate (App Exercise)
• 3.1.3 Functions and Optionals (Exercise)
• 3.1.4 Food Functions (App Exercise)
• 3.1.5 Failable Initializers (Exercise)
• 3.1.6 Workout or Nil (App Exercise)

3.2 Type Casting and Inspection

• 3.2.0 Type Casting (Lab)
• 3.2.1 Type Casting and Inspection (Exercise)
• 3.2.2 Workout Types (App Exercise)

3.3 Guard

• 3.3.0 Guard (Lab)
• 3.3.1 Guard Statements (Exercise)
• 3.3.2 Guard (App Exercise)

3.4 Constant and Variable Scope

• 3.4.0 Scope (Lab)
• 3.4.1 Scope (Exercise)
• 3.4.2 Step Competition (App Exercise)

3.5 Enumerations

• 3.5.0 Enumerations (Lab)
• 3.5.1 Enumerations (Exercise)
• 3.5.2 Swimming Workouts (App Exercise)

3.6 Segues and Navigation Controllers

• 3.6.0 TrafficSegues (Lesson)
• 3.6.1 Login (Lab)

3.7 Tab Bar Controllers

• 3.7.0 RainbowTabs (Lesson)
• 3.7.1 AboutMe (Lab)

3.8 View Controller Life Cycle

• 3.8.0 LifeCycle (Lesson)
• 3.8.1 OrderOfEvents (Lab)

3.9 Building Simple Workflows

• 3.9.1 PizzaDelivery (Lab)

4. Tables and Persistance

4.1 Protocols

• 4.1.0 Protocols (Lab)
• 4.1.1 Adopt Protocols: CustomStringConvertible, Equatable, and Comparable (Exercise)
• 4.1.2 Printable Workouts (App Exercise)
• 4.1.3 Create a Protocol (Exercise)
• 4.1.4 Similar Workouts (App Exercise)
• 4.1.5 Heart Rate Delegate (App Exercise)

4.2 App Anatomy and Life Cycle

• 4.2.0 AppLifeCycle (Lesson)
• 4.2.1 AppEventCount (Lab)

4.3 Model View Controller

• 4.3.1 FavoriteAthlete (Lab)

4.4 Scroll Views

• 4.4.0 ScrollingForm (Lesson)
• 4.4.1 ISpy (Lab)

4.5 Table Views

• 4.5.0 EmojiDictionary (Lesson)
• 4.5.1 Meal Tracker (Lab)

4.6 Intermediate Table Views

• 4.6.0 EmojiDictionary (Lesson)
• 4.6.1 FavoriteBook (Lab)

4.7 Saving Data

• 4.7.0 PersistencePractice (Lesson)
• 4.7.1 EmojiDictionary (Lab)

4.8 System View Controllers

• 4.8.0 SystemViewControllers (Lesson)
• 4.8.1 HomeFurniture (Lab)

4.9 Building Complex Input Screens

• 4.9.0 HotelManzana (Lesson)
• 4.9.1 EmployeeRoster (Lab)

5. Working with the Web

5.1 Closures

• 5.1.0 Closures (Lab)
• 5.1.1 Create Closures (Exercise)
• 5.1.2 Passing Closures as Arguments and Syntactic Sugar (Exercise)
• 5.1.3 Collection Functions (Exercise)

5.2 Extensions

• 5.2.0 Extensions (Lab)
• 5.2.1 Extensions (Exercise)
• 5.2.2 Workout Extensions (App Exercise)

5.3 Practical Animation

• 5.3.0 FlyingSquares (Lesson)
• 5.3.1 MusicWireframe (Lesson)
• 5.3.2 Contest (Lab)

5.4 Working with the Web: HTTP and URL Session

• 5.4.0 Working with the Web (Lesson)
• 5.4.1 iTunes Search (Lab)

5.5 Working with the Web: Decoding JSON

• 5.5.0 Working with the Web (Lesson)
• 5.5.1 iTunes Search (Lab)

5.6 Working with the Web: Concurrency

• 5.6.0 SpacePhoto (Lesson)
• 5.6.1 iTunes Search (Lab)