iOS App Development For Dummies E-Book

Jesse Feiler

• Herausgeber: John Wiley & Sons
• Kategorie: Wissenschaft und neue Technologien
• Sprache: Englisch

Seitenzahl: 679

Veröffentlichungsjahr: 2014

Beschreibung

If you’ve got incredible iOS ideas, get this book and bring them to life!

iOS 7 represents the most significant update to Apple’s mobile operating system since the first iPhone was released, and even the most seasoned app developers are looking for information on how to take advantage of the latest iOS 7 features in their app designs. That’s where iOS App Development For Dummies comes in! Whether you’re a programming hobbyist wanting to build an app for fun or a professional developer looking to expand into the iOS market, this book will walk you through the fundamentals of building a universal app that stands out in the iOS crowd.

• Walks you through joining Apple’s developer program, downloading the latest SDK, and working with Apple’s developer tools
• Explains the key differences between iPad and iPhone apps and how to use each device’s features to your advantage
• Shows you how to design your app with the end user in mind and create a fantastic user experience
• Covers using nib files, views, view controllers, interface objects, gesture recognizers, and much more

There’s no time like now to tap into the power of iOS – start building the next big app today with help from iOS App Development For Dummies!

Leseprobe

iOS App Development For Dummies®

Published by: John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030-5774, www.wiley.com

Copyright © 2014 by John Wiley & Sons, Inc., Hoboken, New Jersey

Published simultaneously in Canada

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Library of Congress Control Number: 2013957974

ISBN 978-1-118-87105-8 (pbk); ISBN 978-1-118-87107-2 (ebk); ISBN 978-1-118-87110-2 (ebk)

Manufactured in the United States of America

10 9 8 7 6 5 4 3 2 1

iOS App Development For Dummies®

Visit www.dummies.com/cheatsheet/iosappdevelopment to view this book's cheat sheet.

Table of Contents

Introduction

A Bit of History

The iPhone stands alone

Enter the App Store

The iPad joins the party

The Plan for This Book

iOS and Xcode Game Changers

About This Book

Conventions Used in This Book

Icons Used in This Book

Foolish Assumptions

How This Book Is Organized

Part I: Getting Started

Part II: Building RoadTrip

Part III: Getting Your Feet Wet: Basic Functionality

Part IV: The Model and the App Structure

Part V: Adding the App Content

Part VI: The Part of Tens

Beyond the Book

Where to Go from Here

Part I: Getting Started

Chapter 1: What Makes a Great iOS App

Figuring Out What Makes a Great iOS App

Making your app work well

Handling networking, social media, and location

Designing a powerful and intuitive interface that disappears

Using the iOS Platform to the Fullest

Exploiting advantages of the system

Accessing the Internet

Knowing the location of the user

Tracking orientation and motion

Tracking users’ fingers on the screen

Playing content

Accessing information from Apple’s apps

Copying, cutting, and pasting between apps

Multitasking, background processing, and notifications

Living large on the big screen

Embracing Device Limitations

Designing for fingers

Balancing memory and battery life

Why Develop iOS Apps?

Developing with Apple’s Expectations in Mind

Thinking About You, Apps, and Money

Enter the Cloud

Developing an App the Right Way Using the Example App in This Book

What’s Next

Chapter 2: Getting to Know the SDK

Developing Using the SDK

Using Xcode to Develop an App

Creating an Xcode project

Developing the app

The Workspace Window

Workspace areas

Displaying an area’s content

The toolbar and Tab bar

The Organizer window

Chapter 3: The Nuts and Bolts of an Xcode Project

Creating Your Project

Exploring Your Project

The project

The Project editor

The Project navigator

Setting Your Xcode Preferences

Building and Running Your Application

Building an app

The iPad’s Split views

The Log navigator

Running in the Simulator

Interacting with your simulated hardware

Making gestures

Uninstalling apps and resetting your device

Living with the Simulator’s limitations

Using Asset Catalogs

Adding the Image and Sound Resources and an App Icon

Part II: Building RoadTrip

Chapter 4: Storyboards and the User Experience

Introducing the Storyboard

Telling your story

Working with object graphs

Defining What You Want an App to Do: The RoadTrip App

Creating the Application Architecture

What You Add Where

Using Frameworks

Using Design Patterns

The iOS design patterns

The Model-View-Controller (MVC) design pattern

Working with Windows and Views

Looking out the window

Admiring the view

The kinds of views you use

View Controllers — the Main Storyboard Players

What About the Model?

It’s Not That Neat

Taking a Look at Other Frameworks

The Foundation framework

The CoreGraphics framework

Even more frameworks

Understanding the MVC in the Project

Chapter 5: Creating the RoadTrip User Interface

Creating Your User Interface in the iPad Storyboard

It’s about the view controller

Using Interface Builder to add the user elements

Working within the Utility Area

Inspector and Quick Help pane

Library pane

Understanding iPad Navigation

Adding a New View Controller

Danger Will Robinson

Adding an identifier to the view controller

View Layout

Adding the User Interface Objects

Autosizing with Auto Layout

Adding the Test Drive button

Massaging the Template Code

Getting Rid of Warnings

Creating the iPhone User Interface

Chapter 6: The Runtime, Managing Memory, and Using Properties

Stepping Through the App Life Cycle

UIApplicationMain

Handling events while your application is executing

Knowing what to do when the normal processing of your application is interrupted

An overview of the view controller life cycle

Working within the Managed Memory Model Design Pattern

Understanding memory management

Using reference counting

Automatic Reference Counting (ARC)

Working with variable types according to ARC

Understanding the deadly retain cycle

Observing Low-Memory Warnings

The didReceiveMemoryWarning method

The applicationDidReceive MemoryWarning: method

The UIApplicationDidReceiveMemory WarningNotification: notification

Picking the right memory-management strategy for your application

Customizing the Behavior of Framework Classes

Subclassing

The Delegation pattern

Understanding Declared Properties

What comprises a declared property

Using dot syntax

Setting attributes for a declared property

Writing your own accessors

Accessing instance variables with accessors

Hiding Instance Variables

Chapter 7: Working with the Source Editor

Navigating in the Xcode Source Editors

Using the Jump bar

Organizing your code using the #pragma mark statement

Using the Xcode Source Editor

Using Live Issues and Fix-it

Compiler warnings

The Issue navigator

Accessing Documentation

Getting Xcode help

The Organizer window

The Help menu

Finding and Searching in Your Project

Using the Find command to locate an item in a file

Using the Search navigator to search your project or framework

Using the Symbol navigator

You’re Finally Ready to Write Code!

Part III: Getting Your Feet Wet: Basic Functionality

Chapter 8: It’s (Finally) Time to Code

Checking for Network Availability

Downloading the Reachability sample

Adding the code to check for reachability

Exploring the Changes in iOS 7

The dated interface

Losing the content

Setting the Master View Controller Title

Understanding Autorotation

Writing Bug-Free Code

Working in the Debug area and Debug navigator

Managing breakpoints

What you’ll find in the Debug area

What you’ll find in the Debug navigator

Displaying variables in the Source editor

Tiptoeing through your program

Chapter 9: Adding Outlets and Actions to Your RoadTrip Code

Using Custom View Controllers

Adding the custom view controller

Setting up the TestDriveController in the MainStoryboard for iPad

Understanding Outlets

Adding Outlets

Opening the Assistant editor

Creating the outlet

The Connections inspector

Working with the Target-Action Design Pattern

Using the Target-Action pattern: It’s about controls

Adding an action

How Outlets and Actions Work

Update the iPhone storyboard file

Chapter 10: Adding Animation and Sound to Your App

Understanding iOS Animation

View geometry and coordinate systems

Points versus pixels

A view’s size and position

Working with data structures

Coordinating Auto Layout, Frames, and Constraints

Animating a View

Finally, More Code

Implementing the testDrive Method

Understanding Block Objects

Rotating the Object

Working with Audio

Tracking Touches

Animating a Series of Images “In Place”

iPhone versus iPad

Part IV: The Model and the App Structure

Chapter 11: The Trip Model

What the Model Contains

Adding the Model Data

Using property lists

Adding a property list to your project

Adding the First Two Model Classes

Understanding the Trip Interface

Implementing the Trip Class

Initializing objects

Invoking the superclass’s init method

Initializing instance variables

Returning self

Initializing the Destination Class

Creating the Trip Object

More Debugger Stuff

Chapter 12: Implementing the Master View Controller

Setting Up a Custom View Controller for the iPad

Adding a Background Image and Title

Updating the iPhone Storyboard File

Chapter 13: Working with Split View Controllers and the Master View

The Problem with Using a Navigation Controller in Detail View

Using a Navigation Controller in the Master View

Adding a Gesture Recognizer

The Split View Controller

The UISplitViewController delegate

Localization

Back to the main feature

Adding the Toolbar

Adding the button when the view controller is replaced

A Few More Tweaks to the MasterViewController

And (a Little Extra) One More Thing

Don’t Forget the iPhone

Chapter 14: Finishing the Basic App Structure

Extending the iPad Storyboard to Add More Functionality to Your App

Adding the Weather view controller

Adding the Events controller

Adding the remaining controllers

Changing the Split View Controller to a Detail View Controller Relationship

Repeat for iPhone

Part V: Adding the App Content

Chapter 15: How’s the Weather? Working with Web Views

The Plan

The iPad storyboard

The iPhone storyboard

Setting Up the Weather Controller

Adding the custom view controller

Setting Up WeatherController in the Main_iPad.storyboard file

The Weather Controller

Managing links in a Web view

More Opportunities to Use the Debugger

Unrecognized selector sent to instance

Repeat for the iPhone Storyboard

Adding the WeatherController to the iPhone storyboard file

Test in the iPhone Simulator

Chapter 16: Displaying Events Using a Page View Controller

The Plan

Setting Up the EventsController

Adding the custom view controller

Setting up the EventsController in the MainStoryboard

Adding and setting up the EventPageController in the MainStoryboard

Extending the Trip Model

Adding the Events Class

The EventsController and Its PageViewController

Data sources and delegates

Data source

Delegate

The EventsController

The EventPageController

Adding Events Support to the iPhone Storyboard

Chapter 17: Finding Your Way

The Plan

Setting Up the Map Controller

Adding the custom view controller

Setting up the MapController in the Main_iPad.Storyboard

Test

Putting MapKit through Its Paces

MKMapView

Enhancing the map

Changing the Map Type

Adding Annotations

Creating the annotation

Displaying the map title and annotations

Going to the Current Location

Fixing the Status Bar

Update the iPhone Storyboard

Chapter 18: Geocoding

Understanding Geocoding on the iPad

Reverse Geocoding

Chapter 19: Finding a Location

Setting Up the Find Controller

Adding the custom view controller

Setting up FindControllerin the Main_iPad File

Implementing the Find Controller

Adding the Map View

Getting the text

Disabling cell highlighting

Finding the Location

Making the Map Title the Found Location

Adding the FindController to the iPhone Storyboard

Chapter 20: Selecting a Destination

The Plan

Setting Up the DestinationController for the iPad Storyboard

Adding the custom view controller

Setting up the DestinationController in the Main_iPad.storyboard

Adding a Modal View

Implementing a Table View

Creating the Table View

Adding sections

Displaying the cell

Working with user selections

Saving the Destination Choice and Selecting a Destination

Displaying the Destination table

Testing

Adding Destination Support to the iPhone Storyboard

A Word about Adding Settings

What’s Next?

Part VI: The Part of Tens

Chapter 21: Ten Ways to Be Successful with Apps

Make a Million Dollars in a Week

Build a Portfolio

Build App Icons

Design User Interfaces

Build Back Ends

Socialize with Apps

Talk About Apps with People Who Want Them

Promote Apps

Provide Support to Users

Fix Bugs

Chapter 22: Ten Ways to Be a Happy Developer

Keep Things Loosely Coupled

Remember Memory

Don’t Reinvent the Wheel

Understand State Transitions

Do the Right Thing at the Right Time

Avoid Mistakes in Error Handling

Use Storyboards

Remember the User

Keep in Mind That the Software Isn’t Finished Until the Last User Is Dead

Keep It Fun

About the Author

Cheat Sheet

More Dummies Products

Guide

Table of Contents

Begin Reading

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Introduction

iOS App Development For Dummies is a beginner’s guide to developing iOS apps. And not only do you not need any iOS development experience to get started, but you also don’t need any Mac development experience, either. I’ve written this book as though you are coming to iPhone and iPad app development as a blank slate, ready to be filled with useful information and new ways to do things. Well, almost a blank slate, anyway; see the upcoming “Foolish Assumptions” section for details on what you do need to know before using this book.

Because of the nature of the iPhone and iPad, you can create small, bite-sized apps that can be quite powerful. Also, because you can start small and create real applications that do something important for a user, it’s relatively easy to transform yourself from an “I know nothing” person into a developer who, though not (yet) a superstar, can still crank out quite a respectable app.