《iOS4SDK入门--给JavaScript程序员(影印版)》(作者Danny Goodman)揭示你的代码如何启动iOS应用并让它们准备就绪；学习iOS内存管理，以及与JavaScript编程有所差异的Objective—C指针和数据类型；使用Objective—C和Cocoa Touch实现常见的JavaScript任务。

JavaScript程序员有没有可能学习Apple的iOS 4 SDK编程并且坚持到成功一刻呢？技术大师Danny Goodman做到了这一点，而且留下了这本有着清晰足迹可以让你跟随的《iOS4SDK入门--给JavaScript程序员(影印版)》(作者Danny Goodman)。作为自JavaScript诞生之日起就是权威专家的Goodman清楚你在使用SDK创建本地iOS应用时会遇到的挑战，他使用一种你容易理解的上下文来介绍Xcode、Objective-C和Cocoa Touch。

当你能够简单地为Apple的iOS设备创建Web应用时，你为什么还需要顾虑SDK呢？这是因为Web应用无法访IhqiPhone的音乐库、相机，或者为地图、音频以及其他东西设计的iOS系统软件。你也无法在应用商店里销售Web应用。如果你希望发挥iPhone~liPad的全部优势，iOS 4 SDK就是你所需要的工具——而《iOS4SDK入门--给JavaScript程序员(影印版)》就是你所需要的参考书。

Preface

1. Why Go Native?

Using an App Offline

More Access to the Hardware

More Access to the Software

What You Lose

Distribution

Apple iOS Developer Program

Content

Authoring Platform Choices

Taking the Plunge

2. Welcome to the iOS SDK

Hardware and OS Requirements

Installing the SDK

About iOS Developer Programs

Inside the SDK

Viewing Developer Documentation

Loading Code Samples

Setting the Project's Base SDK

Trying the iOS Simulator

Coming Up..

3. Creating a Test Workbench

Creating the Project in Xcode

Selecting a Project Type

Naming and Saving the New Project

Welcome to Your Project

Editing Your First Files

What the runMyCode: Method Does

Building the User Interface

Adding a Button to the View

Connecting the Button

Going for a Test Ride

Congratulations

4. Structural Overview of an iOS App

Where It All Begins: APIs

APIs You Already Know

The Cocoa Touch APIs

Frameworks

Foundation Framework

UIKit Framework

CoreGraphics Framework

Adding Frameworks

Frameworks Set in Stone

Welcome to Class Files

The JavaScript Way

The Objective-C Way

Header File Details

Using Xcode to Create DGCar Class Files

Editing the @interface Section

Message Passing

Editing the @implementation Section

Integrating the DGCar Class into Workbench

Creating Object Instances

NSLog0 and String Formats

Running the Code

What About Accessing Instance Variables?

Recap

5. App Execution Flow

Some C Language Roots in an iOS App

An Introduction to Delegates

How UIApplication Appoints Its Delegate

The App's Info.plist File

Inside MainWindow.xib

iPhone App Development Design Patterns

The Model-View-Controller Design Pattern

Other Design Patterns

The Importance of Views

The App Window--UIWindow

Adding Another View to Workbench

Recap

6. Central Objective-C Concepts: Pointers, Data Types, and Memory Management

107

Pointers

Pointers and Memory

Pointers and Objective-C Variables

Pointer Notation

Determining Pointer Usage

Data Typing

Objective-C Data Types

Cocoa Touch Data Types

Objective-C Variable Declarations

Objective-C Method Declarations

The id Data Type

Converting Objective-C Data Types

Memory Management

Cleaning Up After Yourself

The Retain Count

Autorelease Pools

Observing Memory Usage

Recap

7. C Language Fundamentals

Variable Names

Variable Scope

Instance Variables

Local Variables

Local Variables in Control Structure Blocks

Static Local Variables

Global Variables

Constant Values

Functions

C Structures

C Arrays

Enumerated Types

Operators

Program Flow Constructions

Boolean Values

Math Object Equivalents in C

Inserting Comments

Recap

8. Objective-C/Cocoa Touch Fundamentals

More About Classes

Temporary Objects

Subclassing Framework Classes

Defining Your Own Custom Subclasses

Adding to a Class Without Subclassing--Categories

Real Classes in Real Action

TheElements Overview

TheElements Class File Structure

Class Properties

Specifying Properties in the Header File

Synthesizing Properties in the Implementation File

Using Properties

Properties in Framework Classes

About NSString

Creating an NSString

JavaScript String Method Equivalents in Objective-C

NSMutableString

About NSArray

Creating an NSArray

Retrieving Array Elements

JavaScript Array Method Equivalents in Objective-C

NSMutableArray

About NSDictionary

Creating an NSDictionary

Retrieving Dictionary Entries

NSMutableDictionary

Arrays and Dictionaries in Action

Recap

9. Common JavaScript Tasks in Cocoa Touch

Formatting Numbers for Display

Preformatted Number Styles

Rounding Numbers for Display

Creating a Date Object

Adding a UIDatePicker to Workbench

Understanding NSDate

Creating a Date Object for a Specific Date

Extracting Components from an NSDate Object

Creating NSDate Objects from Strings

Converting an NSDate to a String

Calculating Dates

10 Days in the Future

Days Between Dates

Comparing Dates

Downloading Remote Files Asynchronously

Example Project

Creating the Request

Initializing the NSMutableData Object

Delegate Methods

Downloading Only When Needed

Accounting for Fast App Switching

Reading and Writing Local Files

lOS App Directories

Obtaining Directory Paths

Obtaining Paths to Files Delivered with Your App

Writing Files to Disk

Reading Files from Disk

Writing and Reading Property List Files

Performing File Management Tasks

Sorting Arrays

Sorting with a Selector

Sorting with a Function

Sorting Arrays of Dictionaries with NSSortDescriptor

Capturing User-Entered Text

The Code Portion

The Interface Builder Portion

Validating Text Entry with Regular Expressions

Modifying the Code

Modifying the User Interface

Using Regular Expressions for Text Search and Replace

Dragging a View Around the Screen

The Code Portion

The Interface Builder Portion

Recap

A. Getting the Most from Xcode Documentation

B. Common Beginner Xcode Compiler Errors

Glossary

Index