Learning ios Programming

SECOND EDITION

Learning

iOS

_Programming

Alasdair Allan

Table of

Contents

Preface

_ix

1.

_Why

Go

Native? ₁

TheProsandCons 1

Why

Write Native

_{Applications?}

2

The Release

_Cycle

₃

Build It and

_They

WillCome 4

2.

_Becoming

a

_Developer

₇

Registering

as aniOS

Developer

7

Enrolling

intheiOS

_Developer

_Program.

9

The Mac

_{Developer Program}

10

Installing

the iOSSDK 11

What

_Happens

When ThereIsaBeta? 13

Preparing

Your iOSDevice 14

Creating

a

Development

Certificate 15

Getting

theUDIDofYour

_Development

Device 17

Creating

an

App

ID 18

Creating

aMobile

Provisioning

Profile 19

Making

Your Device Available for

_Development

20

3. Your

First

iOS

_App

23

Objective-C

Basics 23

Object-Oriented Programming

23

The

_{Objective-C Object}

Model 25

The Basicsof

_{Objective-C Syntax}

27

Creating

a

Project

28

Exploring

the

_Project

inXcode 32

Our

_Project

inInterface Builder 39

Building

theUserInterface 41

Running

the

_Application

inthe Simulator 46

Putting

the

_Application

onYouriPhone 48

4.

_Coding

in

_Objective-C

49

Declaring

and

_Defining

Classes

49

Declaring

aClass with the Interface 49

Defining

aClasswith the

Implementation

51

Object Typing

52

Properties

52

Synthesizing

Properties

54

TheDot

_Syntax

54

Declaring

Methods 54

Calling

Methods 55

Calling

Methodson nil 56

Memory

Management

56

Creating Objects

57

The Autorelease Pool 57

The

alloc,

retain, copy, and release

Cycle

58 AutomaticReference

_Counting

59

The deallocMethod 60

Responding

to

_Memory

Warnings

60

Fundamental iOS

_Design

Patterns 60

The Model-View-Controller Pattern 61

ViewsandViewControllers 61

The

_Delegates

and DataSource Pattern 62

Conclusion 63

5.

Table View-Based

_Applications

65

Creating

the

_Project

65

Creating

aTable View 66

Running

the Code 71

Populating

the TableView 71

Building

aModel 73

Adding

CitiestotheGuide 78

Adding

Images

toYour

Projects

80

Connecting

the Controllerto theModel 81

Mocking

Up

Functionality

with Alert Windows 84

Adding Navigation

Controlstothe

Application

85

Adding

a

City

View 87

Edit Mode 94

Deleting

a

City Entry

98

Adding

a

City Entry

99

Capturing

the

_City

Data 109

6.

Other View Controllers

115

Utility Applications

115

Making

the

_{Battery Monitoring Application}

116

Tab Bar

_Applications

127

Adding

Another TabBar Item 128

Combining

ViewControllers 132

Modal View Controllers 137

Modifying

the

_City

Guide

_Application

139

The

_Image

PickerViewController 148

Adding

the

_Image

Picker to the

_City

Guide

Application

148

Master-Detail

_Applications

157

Creating

aUniversal

Application

158

Popover

Controllers 167

7.

_Connecting

tothe Network 169

Detecting

NetworkStatus 169

Apple's Reachability

Class 169

Embedding

aWeb Browser in Your

_App

181

A

_Simple

WebView Controller 182

Displaying

Static HTML Files 191

Getting

DataOut ofa UlWebView 192

Sending

Email 192

Getting

Datafromthe Internet 198

Synchronous Requests

198

Asynchronous

Requests

198

Using

WebServices 199

8.

_Handling

Data

219

Data

_Entry

219

UITextField and Its

_Delegate

219

UITextViewandIts

_Delegate

221

Parsing

XML 223

Parsing

XMLwith libxml2 224

Parsing

XMLwithNSXMLParser 225

Parsing

JSON

227

NSJSONSerialization

227

The

_JSON

Framework 229

Retrieving

TwitterTrends 230

Using

theTwitterFramework 232

TheTwitterTrends

_Application

232

Introductionto

Regular

Expressions

₂₄₀

Storing

Data ₂₄₅

Using

Flat Files ₂₄₅

Storing

Information in a

SQL

Database ₂₄₆

Core Data ₂₅₄

9.

_Using

Sensors

₂₅₅

Hardware

_Support

₂₅₅

Network

_Availability

₂₅₆

Camera

Availability

256

Audio

_{Input Availability}

₂₅₆

GPS

_Availability

₂₅₇

Magnetometer

Availability

257

Setting

Required

Hardware

_Capabilities

258

Persistent WiFi ₂₅₈

Background

Modes ₂₅₉

Differences BetweeniPhoneand iPad ₂₆₀

Using

the Camera ₂₆₁

TheCore Motion Framework ₂₆₂

Pulling

MotionData ₂₆₂

Pushing

MotionData ₂₆₃

TheAccelerometer ₂₆₄

The

_Gyroscope

₂₆₈

The

_Magnetometer

₂₇₀

Accessing

the

_Proximity

Sensor ₂₇₅

Using

Vibration ₂₇₇

10.

Geolocation

and

_Mapping

₂₇₉

The

Core Location Framework ₂₇₉

Device

_Heading

281

Location-Dependent

Weather

₂₈₃ Reverse

_Geocoding

₂₈₄ Forward

_Geocoding

₂₈₄ CLPlacemark

_Objects

₂₈₅

Modifying

the Weather

_Application

₂₈₅

User Location and

_MapKit

₂₉₃

Annotating Maps

301

11.

Introduction

to

iCIoud

₃₀₉

HowCanI UseiCIoud? ₃₀₉

iCIoud

_Backup

310

Provisioning

Your

_Application

_{for iCIoud 310}

Wrapping

Up

320

12.

_Integrating

Your

_Application

323

Application

Preferences 323

TheAccountsFramework 333

TheTwitter Framework 335

Sending

Tweets 336

CustomURLSchemes 337

Using

CustomSchemes 337

Registering

Custom Schemes 339

Media

_Playback

344

Using

the Address Book 349

Interactive

_{People Picking}

349

Programmatic People Picking

353

Sending

Text

_Messages

353

13.

_Distributing

Your

_Application

355

Adding

Missing

Features 355

Adding

anIcon 355

Adding

aLaunch

Image

359

Changing

the

_Display

Name 364

Enabling

Rotation 365

Building

and

_Signing

366

Ad Hoc Distribution 367

Developer-to-Developer

Distribution 372

App

StoreDistribution 373

Submitting

to the

_App

Store 374

Building

Your

_Application

for

_App

Store Distribution 380

The

_App

Store Resource Center 383

Reasonsfor

_Rejection

384

14.

_Going

Further

389

Cocoa and

_Objective-C

389

The iOS SDK 389 Web

_Applications

390

PhoneGap

390 Core Data 391

In-App

Purchase 391 MKStoreKit 392 Core Animation 392 Game Kit 392

Writing

Games 393

Hardware Accessories 394