IOS 8 App Development Essentials

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This book is currently under development with new chapters added regularly.

© 2014 Neil Smyth / Payload Media. This eBook is provided for personal use only. Unauthorized use, reproduction and/or distribution strictly prohibited. All rights reserved.

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Joining the Apple iOS 8 Developer Program Registered Apple Developer Downloading Xcode 6 and the iOS 8 SDK iOS Developer Program When to Enroll in the iOS Developer Program? Enrolling in the iOS Developer Program Installing Xcode 6 and the iOS 8 SDK Identifying if you have an Intel or PowerPC based Mac Installing Xcode 6 and the iOS 8 SDK A Guided Tour of Xcode 6 Starting Xcode 6 Creating the iOS App User Interface Changing Component Properties Adding Objects to the User Interface Building and Running an iOS 8 App in Xcode 6 Dealing with Build Errors Monitoring Application Performance An Exploded View of the User Interface Layout Hierarchy Testing Apps on iOS 8 Devices with Xcode 6 Configuring Xcode with Apple IDs Generating Signing Identities Device Registration Manually Adding Test Devices Running an Application on a Registered Device An Introduction to Swift Playgrounds What is a Swift Playground? Creating a New Swift Playground A Basic Swift Playground Example Playground Timelines Working with UIKit in Playgrounds When to Use Swift Playgrounds Swift Data Types, Constants and Variables Using a Swift Playground Swift Data Types Integer Data Types Floating Point Data Types Bool Data Type Character Data Type String Data Type Special Characters/Escape Sequences Swift Variables Swift Constants Declaring Constants and Variables Type Annotations and Type Inference Type Casting and Type Checking The Swift Tuple The Swift Optional Type Swift Operators and Expressions Expression Syntax in Swift The Basic Assignment Operator Swift Arithmetic Operators Compound Assignment Operators Increment and Decrement Operators Comparison Operators Boolean Logical Operators Range Operators The Ternary Operator Bitwise Operators Bitwise NOT Bitwise AND Bitwise OR Bitwise XOR Bitwise Left Shift Bitwise Right Shift Compound Bitwise Operators Swift Flow Control Looping Flow Control The Swift for Statement The Condition-Increment for Loop The for-in Loop The while Loop The do ... while loop Breaking from Loops The continue Statement Conditional Flow Control Using the if Statement Using if ... else … Statements Using if ... else if ... Statements The Swift Switch Statement Why Use a switch Statement? Using the switch Statement Syntax A Swift switch Statement Example Combining case Statements Range Matching in a switch Statement Using the where statement Fallthrough An Overview of Swift Functions and Closures What is a Function? How to Declare a Swift Function Calling a Swift Function Declaring External Parameter Names Declaring Default Function Parameters Returning Multiple Results from a Function Variable Numbers of Function Parameters Parameters as Variables Working with In-Out Parameters Functions as Parameters Closure Expressions Closures in Swift The Basics of Object Oriented Programming in Swift What is an Object? What is a Class? Declaring a Swift Class Adding Instance Properties to a Class Defining Methods Declaring and Initializing a Class Instance Initializing and Deinitializing a Class Instance Calling Methods and Accessing Properties Stored and Computed Properties Using self in Swift An Introduction to Swift Inheritance Inheritance, Classes and Subclasses A Swift Inheritance Example Extending the Functionality of a Subclass Overriding Inherited Methods Initializing the Subclass Using the SavingsAccount Class Working with Array and Dictionary Collections in Swift Mutable and Immutable Collections Swift Array Initialization Working with Arrays in Swift Array Item Count Accessing Array Items Appending Items to an Array Inserting and Deleting Array Items Array Iteration Swift Dictionary Collections Swift Dictionary Initialization Dictionary Item Count Accessing and Updating Dictionary Items Adding and Removing Dictionary Entries Dictionary Iteration The iOS 8 Application and Development Architecture An Overview of the iOS 8 Operating System Architecture Model View Controller (MVC) The Target-Action pattern, IBOutlets and IBActions Subclassing Delegation Creating an Interactive iOS 8 App Creating the New Project Creating the User Interface Building and Running the Sample Application Adding Actions and Outlets Building and Running the Finished Application Hiding the Keyboard Understanding iOS 8 Views, Windows and the View Hierarchy An Overview of Views The UIWindow Class The View Hierarchy View Types The Window Container Views Controls Display Views Text and Web Views Navigation Views and Tab Bars Alert Views An Introduction to Auto Layout in iOS 8 An Overview of Auto Layout Alignment Rects Intrinsic Content Size Content Hugging and Compression Resistance Priorities Three Ways to Create Constraints Constraints in more Detail Working with iOS 8 Auto Layout Constraints in Interface Builder A Simple Example of Auto Layout in Action Enabling and Disabling Auto Layout in Interface Builder The Auto Layout Features of Interface Builder Suggested Constraints Visual Cues Highlighting Constraint Problems Viewing, Editing and Deleting Constraints Creating New Constraints in Interface Builder Adding Aspect Ratio Constraints Resolving Auto Layout Problems An iOS 8 Auto Layout Example Preparing the Project Designing the User Interface Adding Auto Layout Constraints Adjusting Constraint Priorities Testing the Application Implementing iOS 8 Auto Layout Constraints in Swift Code Creating Constraints in Code Adding a Constraint to a View Turning off Auto Resizing Translation An Example Application Creating the Views Creating and Adding the Constraints Removing Constraints Implementing Cross-Hierarchy Auto Layout Constraints in iOS 8 The Example Application Establishing Outlets Writing the Code to Remove the Old Constraint Adding the Cross Hierarchy Constraint Testing the Application Understanding the iOS 8 Auto Layout Visual Format Language in Swift The Example Application Establishing Outlets Writing the Code to Remove the Old Constraint Adding the Cross Hierarchy Constraint Testing the Application Using Size Classes to Design Universal iOS User Interfaces Understanding Size Classes Size Classes in Interface Builder Setting “Any” Defaults Working with Size Classes in Interface Builder A Universal User Interface Tutorial Designing the iPad Layout Adding Universal Image Assets Designing the iPhone Layout Adding a Size Class Specific Image File Removing Redundant Constraints Previewing Layouts Testing the Application Using Storyboards in Xcode 6 Creating the Storyboard Example Project Accessing the Storyboard Adding Scenes to the Storyboard Configuring Storyboard Segues Configuring Storyboard Transitions Associating a View Controller with a Scene Passing Data Between Scenes Unwinding Storyboard Segues Triggering a Storyboard Segue Programmatically Using Xcode 6 Storyboards to Create an iOS 8 Tab Bar Application An Overview of the Tab Bar Understanding View Controllers in a Multiview Application Setting up the Tab Bar Example Application Reviewing the Project Files Adding the View Controllers for the Content Views Adding the Tab Bar Controller to the Storyboard Designing the View Controller User interfaces Configuring the Tab Bar Items Building and Running the Application An Overview of iOS 8 Table Views and Xcode 6 Storyboards An Overview of the Table View Static vs. Dynamic Table Views The Table View Delegate and dataSource Table View Styles Self-Sizing Table Cells Dynamic Type Table View Cell Styles Table View Cell Reuse Using Storyboards and Swift to Build Dynamic TableViews with Prototype Table View Cells Creating the Example Project Adding the TableView Controller to the Storyboard Creating the UITableViewController and UITableViewCell Subclasses Declaring the Cell Reuse Identifier Designing a Storyboard UITableView Prototype Cell Modifying the AttractionTableViewCell Class Creating the Table View Datasource Downloading and Adding the Image Files Compiling and Running the Application Implementing iOS 8 TableView Navigation using Storyboards in Xcode 6 and Swift Understanding the Navigation Controller Adding the New Scene to the Storyboard Adding a Navigation Controller Establishing the Storyboard Segue Modifying the AttractionDetailViewController Class Using prepareForSegue to Pass Data between Storyboard Scenes Testing the Application An iOS 8 Swift Split View Master-Detail Example An Overview of Split View and Popovers About the Example Split View Project Creating the Project Reviewing the Project Configuring Master View Items Configuring the Detail View Controller Connecting Master Selections to the Detail View Modifying the DetailViewController Class Testing the Application Implementing a Swift Page based iOS 8 Application using UIPageViewController The UIPageViewController Class The UIPageViewController DataSource Navigation Orientation Spine Location The UIPageViewController Delegate Protocol An Example Swift iOS 8 UIPageViewController Application The Xcode Page-based Application Template Creating the Project Adding the Content View Controller Creating the Data Model Initializing the UIPageViewController Running the UIPageViewController Application Working with Directories in Swift on iOS 8 The Application Documents Directory The NSFileManager, NSFileHandle and NSData Classes Understanding Pathnames in Swift Obtaining a Reference to the Default NSFileManager Object Identifying the Current Working Directory Identifying the Documents Directory Identifying the Temporary Directory Changing Directory Deleting a Directory Listing the Contents of a Directory Getting the Attributes of a File or Directory Working with Files in Swift on iOS 8 Creating an NSFileManager Instance Checking for the Existence of a File Comparing the Contents of Two Files Checking if a File is Readable/Writable/Executable/Deletable Moving/Renaming a File Copying a File Removing a File Creating a Symbolic Link Reading and Writing Files with NSFileManager Working with Files using the NSFileHandle Class Creating an NSFileHandle Object NSFileHandle File Offsets and Seeking Reading Data from a File Writing Data to a File Truncating a File iOS 8 Directory Handling and File I/O in Swift – A Worked Example The Example Application Setting up the Application Project Designing the User Interface Checking the Data File on Application Startup Implementing the Action Method Building and Running the Example Preparing an iOS 8 App to use iCloud Storage

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