iPhone and iPad Apps for Absolute Beginners

Contents at a Glance

Table of Contents

Foreword: About the Author

Why you’ll relate to Dr. Lewis

Fast-Forward 17 Years

Past—Present—Future

Why Write This Book?

About the Contributing Authors

About the Technical Reviewer

Acknowledgments

Preface

What This Book Will Do For You

The Approach I Take

Chapter 1 Before We Get Started

Necessities and Accessories

What I Won’t Teach You

Computer Science: A Broad and Diverse Landscape

Why Purgatory Exists In Objective-C

Houston, We Have a Problem

How We’ll Visit Purgatory Every Now and Again

Looking Forward … Beginning iPhone 3 Development: Exploring the iPhone SDK

What You Will Learn

Creating Cool and Wacky Apps: Why I Teach This Way

Evangelizing to Your Grandmother … What You Coded Is Crucial!

How Does This All Work?

Our Road Map: Using Xcode and Interface Builder

Getting Ready For Your First iPhone/iPad Project

The Accompanying Screencasts

The Accompanying PDFs

Pretending Not to Know: The Art of De-Obfuscation

How We’ll Travel Through Each Step

Chapter 2: Blast-Off!

helloWorld_002 – a Navigation-based Application

helloWorld_003 – Modifying a Navigation-based App

Chapter 3: What’s Next?

§I: THE ROAD AHEAD

Introducing Chapter 4—An Introduction to the Code

Introducing Chapter 5—Buttons & Labels with Multiple Graphics

Introducing Chapter 6—Switch View with Multiple Graphics

Introducing Chapter 7—Dragging, Rotating, and Scaling

Introducing Chapter 8—Table Views, Navigation, and Arrays

Introducing Chapter 9—MapKit

§II: THE iPHONE AND THE iPAD

Do Apps Run on Both the iPad and the iPhone?

More Screen Space

Master-Detail

User Interface on iPad

Checking the Platform

Compatibility

§III: A LOOK UNDER THE HOOD

You’ve Said “Hello!” … but now, INDIO!

Model-View-Controller

Chapter 4: An Introduction to the Code

004_helloWorld: Buttons with Graphics

Digging the Code

Nibs, Zibs, and Xibs

Methods

Chapter 5: Buttons & Labels with Multiple Graphics

helloWorld_005: a View-Based Application

Preliminaries

Xcode – Beginning a New Project

Understanding IBOutlets

Pointers

Properties: Management & Control

Adding IBActions

Coding the Implementation File

Providing for Synthesis

Interface Builder: Making the Connections

Final Step: File’s Owner & uiImageView

Digging the Code

IBOutlets and IBActions

More About Pointers

In the Chapter Ahead

Chapter 6: Switch View with Multiple Graphics

einSwitch_001—a Window-Based Application

Preliminaries

Name your Project “einSwitch01”

Create the 1st UIViewController Subclass

Create the Ein1Controller

Check Header and Implementation Files

Create the Ein2Controller

Make Sure Images Are Embedded

Save Einstein2View.xib

Drag the Images into Xcode

Assign your Icon in the “plist”

Code the AppViewDelegate

Working SwitchView

SwitchViewController and AppDelegate

SwitchViewController Header File

Ready for Lazy Load—Implementation File

A Note about Comments and Lazy Loads

Copy Contents of SwitchViewController.txt

A Note about Apple’s Boilerplate Implementation File

Working on the .xib Files

Select the File’s Owner

Drag a View onto the Screen

Start Working on the Einstein#View.xib Files

Repeat Process for Second Image

einSwitch_002—a Tab-Bar Application

einSwitch_003—a Window-Based Application

Digging … Your Brain

Chapter 7: Dragging, Rotating, and Scaling

DragRotateAndScale—a View-Based Application

Preliminaries

Starting the DragRotateAndScale App

Creating a Custom UIImageView Subclass

Overriding – initWithImage in TransformView.m

Creating Touch-Handling Stubs

Translating in touchesMoved

Making Use of TransformView

Creating a TransformView

Preparing TransformView for Rotation and Scaling

Helper Methods

Adding to “-touchesBegan”

Modifying -touchesMoved

Digging the Code

Gesture Support and the iPad

Chapter 8: Table Views, Navigation, and Arrays

How Shall We Proceed?

Table Views and Navigation Stacks

Food: Following the App Store Model

Starting the Food App

Adding the Category Names Array in RootViewController.h

Creating the Categories Array in -viewDidLoad

Setting Up Table View Data Source Methods

Table View Delegation

Setting up FoodTableViewController

Creating the Convenience Constructor for the FoodTableViewController

Data Source and Delegation for the FoodTableViewController

Creating the FoodViewController Class

The FoodViewController Header File

The FoodViewController Convenience Constructor

Setting Up FoodViewController, -viewDidLoad, and the (.xib)

Icon File

Testing the App

Digging the Code

Memory Management

Reuse Identifiers

Chapter 9: MapKit

A Little about Frameworks

Important Things to Know

Preinstalled MapKit Apps

Find Locations

Get Directions

See Which Way You’re Facing

See Traffic

Search for a Location

Change Your View

Cool and Popular MapKit Apps to Inspire You

MapKit_01: A View-Based Application

Possible Prepping for the App

Preliminaries

A New View-Based Template

Adding the Annotation File

It’s Already Working!

Check It Out—the iPad Simulator

Make It Look a Little Bit Better

Dealing with the Implementation

Coding the myPos.h File

The myPos.m File

The AppDelegate Files

Connect MapView with MKMapView

Digging My Students’ MapKit Code

Parsing to MapKit from the Internet

MapKit Parsing

Three MapKit Final Projects: CS-201 iPhone Apps, Objective-C

Final Project—Example 2

Biographical Info—Example 3, Satish Rege

Zoom Out … Seeing the Big Picture

Index