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ActionScript 3.0 Cookbook: Solutions for Flash Platform and Flex Application Developers Paperback – Oct 21 2006

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Product Details

  • Paperback: 588 pages
  • Publisher: Adobe Developer Library; 1 edition (Oct. 21 2006)
  • Language: English
  • ISBN-10: 0596526954
  • ISBN-13: 978-0596526955
  • Product Dimensions: 17.8 x 3.3 x 23.3 cm
  • Shipping Weight: 862 g
  • Average Customer Review: 5.0 out of 5 stars 1 customer review
  • Amazon Bestsellers Rank: #525,960 in Books (See Top 100 in Books)
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  • See Complete Table of Contents

Product Description

About the Author

Joey Lott is the author of several O'Reilly books on Macromedia technology, including Flash 8 Cookbook, Programming Flash Communication Server, and the ActionScript Cookbook. He is also the author of Flash 8 ActionScript Bible (Wiley) and Advanced ActionScript with Design Patterns (Adobe Press, October 2006). Joey has been teaching Flash and ActionScript since 1999. His professional experience in the Internet industry includes co-founding RightSpring, Inc., as well as consulting for YourMobile/Premium Wireless Services (J2EE B2C application) and Ads.com (leading the development of a J2EE B2B application).

Darron Schall is an independent consultant specializing in the Flash Platform, with a Bachelor's Degree in Computer Science from Lehigh University. He has been using ActionScript since the early days and is a prominent voice in the Flash and Flex communities. He is actively involved in the Open Source Flash movement with projects ranging from software development tools to a Commodore 64 emulator. Darron has spoken at various conferences about ActionScript, and has contributed to books and magazines. You can find his Flash Platform related weblog at http://www.darronschall.com.

Keith Peters is a Flash developer in the Boston area. He has been working with Flash since 1999 and is currently a Senior Flash Developer at Brightcove (http://www.brightcove.com). Keith has been a contributing author to nine other books on Flash and ActionScript. His personal website, http://www.bit-101.com, features an active blog, over 700 open source Flash experiments, and lots of other random Flash-related stuff.

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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: HASH(0xa1215744) out of 5 stars 39 reviews
12 of 12 people found the following review helpful
HASH(0xa10761a4) out of 5 stars Fast ramp up to Actionscript 3.0 April 11 2007
By C. Cowherd - Published on Amazon.com
Format: Paperback
This book was exactly what I was looking for: a reference-style book to quickly look up how to do something specific with ActionScript 3. It is for generally experienced developers that already know what they want to do and just need to see how it's done in with AS3 in the classic cookbook style.

There is no coverage of Flex or Flex Builder (perfect!). This is also not a tutorial book so you may need to look elsewhere if that is what you need.
7 of 7 people found the following review helpful
HASH(0xa10761f8) out of 5 stars A Handy Reference for ActionScript Programmers Jan. 15 2007
By attackAnt - Published on Amazon.com
Format: Paperback
Despite numerous typographical errors and several sections that reference outdated ActionScript 2 information, the ActionScript 3.0 Cookbook remains a very handy reference for developers who want quick, ready to implement solutions to common programming tasks and challenges.

This book is more of a desk reference for common tasks than an overall guide to the newest installment of Adobe's ECMA-based programming language. The sections devoted to the new features of ActionScript 3 are very useful and have thorough explanations with well documented code samples. I found the chapter on the new model for adding visual elements to a SWF via ActionScript using the Display List to be particularly helpful in my study of AS3.'

To sum up my thoughts on the ActionScript 3.0 Cookbook: Definitely a worth the cover price for experienced ActionScript developers but maybe not the ideal resource for those developers that are just learning programming for the Flash Platform.
80 of 105 people found the following review helpful
HASH(0xa1076630) out of 5 stars A great addition to your ActionScript knowledge base Oct. 28 2006
By calvinnme - Published on Amazon.com
Format: Paperback
This book is in the style of the classic O'Reilly Cookbook series format, in which each recipe presents the problem, the solution, and a discussion of the solution. Each section pretty much stands alone, although you should understand chapter one on the basics before moving on. The Discussion sections of each recipe offer a good analysis of how the solution works and different design choices and their various ramifications. Thus you get the best of both worlds - quick and easy access to the answers you want and deeper insights into the nature of both the problem and the solution. This book is helping me develop my understanding of ActionScript concepts by applying them in real situations and I highly recommend it.

All of the code examples in this book are based on ActionScript 3.0 and only compatible with products that support ActionScript 3.0. Flex 2.0 and Flash 9 allow you to author ActionScript 3.0 content. Flash Player 9 supports ActionScript 3.0. If you are using a product that does not support ActionScript 3.0, then the code in this book is not likely to work.

The following is the table of contents:

Chapter 1. ActionScript Basics
Recipe 1.1. Creating an ActionScript Project
Recipe 1.2. Customizing the Properties of an Application
Recipe 1.3. Where to Place ActionScript Code
Recipe 1.4. How to Trace a Message
Recipe 1.5. Handling Events
Recipe 1.6. Responding to Mouse and Key Events
Recipe 1.7. Using Mathematical Operators
Recipe 1.8. Checking Equality or Comparing Values
Recipe 1.9. Performing Actions Conditionally
Recipe 1.10. Performing Complex Conditional Testing
Recipe 1.11. Repeating an Operation Many Times
Recipe 1.12. Repeating a Task over Time
Recipe 1.13. Creating Reusable Code
Recipe 1.14. Generalizing a Method to Enhance Reusability
Recipe 1.15. Exiting a Method
Recipe 1.16. Obtaining the Result of a Method
Recipe 1.17. Handling Errors

Chapter 2. Custom Classes
Classes are absolutely essential to ActionScript 3.0. This is truer in ActionScript 3.0 than in any earlier release of the language. ActionScript 1.0 was essentially a procedural language with modest object-oriented features. ActionScript 2.0 formalized the object-oriented features and took a big step in the direction of a truly object-oriented language. However, ActionScript 3.0 shifts the core focus of ActionScript so that the basic building block is that of the class. If you are using ActionScript 3.0 with Flex, and the introduction of the minor exception of code being placed within mx_Script tags, all ActionScript code must appear within a class. This chapter discusses the fundamentals of writing custom classes in ActionScript 3.0.
Recipe 2.1. Creating a Custom Class
Recipe 2.2. Determining Where to Save a Class
Recipe 2.3. Creating Properties That Behave As Methods
Recipe 2.4. Creating Static Methods and Properties
Recipe 2.5. Creating Subclasses
Recipe 2.6. Implementing Subclass Versions of Superclass Methods
Recipe 2.7. Creating Constants
Recipe 2.8. Dispatching Events

Chapter 3. Runtime Environment
Flash Player 9 offers a relatively large amount of information about and control over the runtime environment. The flash.system.Capabilities class has many static methods that return information about the player and the computer on which it is running, such as the operating system, language, audio, and video capabilities. There are other classes such as flash.display.Stage and flash.system.Security that allow you to control other elements of the Player such as the right-click menu under Windows (Control-click on the Macintosh) and the Settings dialog box. The flash.display.Stage class also controls the scaling and alignment of the movie within the Player.
Recipe 3.1. Detecting the Player Version
Recipe 3.2. Detecting the Operating System
Recipe 3.3. Checking the Player Type
Recipe 3.4. Checking the System Language
Recipe 3.5. Detecting Display Settings
Recipe 3.6. Scaling the Movie
Recipe 3.7. Changing the Alignment
Recipe 3.8. Hiding the Flash Player's Menu Items
Recipe 3.9. Detecting the Device's Audio Capabilities
Recipe 3.10. Detecting the Device's Video Capabilities
Recipe 3.11. Prompting the User to Change Player Settings
Recipe 3.12. Dealing with System Security

Chapter 4. Numbers and Math
ActionScript 3.0 has three basic numeric types: number, int, and uint. number is for any floating-point numbers, whereas int and uint are for integers (whole numbers). The distinction between int and uint is that int is the set of negative and non-negative integers, while uint is the set of non-negative integers (unsigned integers). This chapter gives you examples of working with all types of numbers in ActionScript using a variety of mathematical applications.
Recipe 4.1. Representing Numbers in Different Bases
Recipe 4.2. Converting Between Different Number Systems
Recipe 4.3. Rounding Numbers
Recipe 4.4. Inserting Leading or Trailing Zeros or Spaces
Recipe 4.5. Formatting Numbers for Display Without a Mask
Recipe 4.6. Formatting Currency Amounts
Recipe 4.7. Generating a Random Number
Recipe 4.8. Simulating a Coin Toss
Recipe 4.9. Simulating Dice
Recipe 4.10. Simulating Playing Cards
Recipe 4.11. Generating a Unique Number
Recipe 4.12. Converting Angle Measurements
Recipe 4.13. Calculating the Distance Between Two Points
Recipe 4.14. Determining Points Along a Circle
Recipe 4.15. Converting Between Units of Measurement

Chapter 5. Arrays
In ActionScript, there are two kinds of arrays: integer-indexed and associative. Both array types group related data, but they use different means of accessing the data. The integer-indexed array uses integers as unique identifiers for each element in the array. Associative arrays use string keys to access each value. There's more about associative arrays in Recipe 5.15. This chapter will remind you of any good chapter in any book on arrays in any programming language.
Recipe 5.1. Adding Elements to the Start or End of an Array
Recipe 5.2. Looping Through an Array
Recipe 5.3. Searching for Matching Elements in an Array
Recipe 5.4. Removing Elements
Recipe 5.5. Inserting Elements in the Middle of an Array
Recipe 5.6. Converting a String to an Array
Recipe 5.7. Converting an Array to a String
Recipe 5.8. Creating a Separate Copy of an Array
Recipe 5.9. Storing Complex or Multidimensional Data
Recipe 5.10. Sorting or Reversing an Array
Recipe 5.11. Implementing a Custom Sort
Recipe 5.12. Randomizing the Elements of an Array
Recipe 5.13. Getting the Minimum or Maximum Element
Recipe 5.14. Comparing Arrays
Recipe 5.15. Creating an Associative Array
Recipe 5.16. Reading Elements of an Associative Array

Chapter 6. Display List
The rendering model for ActionScript 3.0 and Flash Player 9 is radically different than in previous versions. The new renderer is still hierarchical, but not as rigid, and aims to simplify and optimize the rendering process. The new rendering model centers on the display list concept and focuses on the classes available in the flash.display package. The display list is a hierarchy that contains all visible objects in the .swf movie. Any object not on the display list is not drawn by the renderer. Each .swf movie contains exactly one display list, which is comprised of three types of elements: the stage, display object container, and display objects. This chapter gives you practice working with this new model.
Recipe 6.1. Adding an Item to the Display List
Recipe 6.2. Removing an Item from the Display List
Recipe 6.3. Moving Objects Forward and Backward
Recipe 6.4. Creating Custom Visual Classes
Recipe 6.5. Creating Simple Buttons
Recipe 6.6. Loading External Images at Runtime
Recipe 6.7. Loading and Interacting with External Movies
Recipe 6.8. Creating Mouse Interactions
Recipe 6.9. Dragging and Dropping Objects with the Mouse

Chapter 7. Drawing and Masking
With ActionScript, you can programmatically draw many display objects such as Shape, Sprite, Button, and MovieClip. Each of these classes has a graphics property that is an instance of the flash.display.Graphics class. The Graphics class defines an API for drawing content programmatically. Most recipes in this chapter discuss how to use the Graphics class API.
Recipe 7.1. Setting a Line Style
Recipe 7.2. Setting Gradient Line Styles
Recipe 7.3. Drawing a Line
Recipe 7.4. Drawing a Curve
Recipe 7.5. Drawing an Arc
Recipe 7.6. Drawing a Rectangle
Recipe 7.7. Drawing a Circle
Recipe 7.8. Drawing an Ellipse
Recipe 7.9. Drawing a Triangle
Recipe 7.10. Drawing Regular Polygons
Recipe 7.11. Drawing a Star
Recipe 7.12. Filling a Shape with a Solid or Translucent Color
Recipe 7.13. Filling a Shape with a Gradient
Recipe 7.14. Filling a Shape with a Bitmap
Recipe 7.15. Scripting Masks

Chapter 8. Bitmaps
Before Flash 8, support for bitmap images was minimal. Although they could be loaded and displayed, there wasn't much you could do with them at runtime. The BitmapData class offers a nice set of tools for creating and manipulating bitmap graphics at runtime in Flash, and is featured in this chapter.
Recipe 8.1. Creating a BitmapData Object
Recipe 8.2. Adding a Bitmap to the Display List
Recipe 8.3. Drawing a Display Object to a Bitmap
Recipe 8.4. Loading an External Image into a Bitmap
Recipe 8.5. Manipulating Pixels
Recipe 8.6. Creating Rectangular Fills
Recipe 8.7. Creating a Flood Fill
Recipe 8.8. Copying Pixels
Recipe 8.9. Copying Channels
Recipe 8.10. Creating Noise
Recipe 8.11. Creating Perlin Noise
Recipe 8.12. Using Threshold
Recipe 8.13. Applying a Filter to a Bitmap
Recipe 8.14. Dissolving Between Two Bitmaps
Recipe 8.15. Scrolling a Bitmap

Chapter 9. Text
With ActionScript 3.0, the new text field object isn't automatically added to the display list. That means that if you want to make the text field visible, you have to use the addChild( ) method. The addChild( ) method is defined for all container display objects, such as Sprite, and it adds the object specified as a parameter to the display list of the object from which it is called. These recipes are good examples of the new method.
Recipe 9.1. Creating an Outline Around a Text Field
Recipe 9.2. Creating a Background for a Text Field
Recipe 9.3. Making a User Input Field
Recipe 9.4. Making a Password Input Field
Recipe 9.5. Filtering Text Input
Recipe 9.6. Setting a Field's Maximum Length
Recipe 9.7. Displaying Text
Recipe 9.8. Displaying HTML-Formatted Text
Recipe 9.9. Condensing Whitespace
Recipe 9.10. Sizing Text Fields to Fit Contents
Recipe 9.11. Scrolling Text Programmatically
Recipe 9.12. Responding to Scroll Events
Recipe 9.13. Formatting Text
Recipe 9.14. Formatting User-Input Text
Recipe 9.15. Formatting a Portion of Existing Text
Recipe 9.16. Setting a Text Field's Font
Recipe 9.17. Embedding Fonts
Recipe 9.18. Creating Text that Can Be Rotated
Recipe 9.19. Displaying Unicode Text
Recipe 9.20. Assigning Focus to a Text Field
Recipe 9.21. Selecting Text with ActionScript
Recipe 9.22. Setting the Insertion Point in a Text Field
Recipe 9.23. Responding When Text Is Selected or Deselected
Recipe 9.24. Responding to User Text Entry
Recipe 9.25. Adding a Hyperlink to Text
Recipe 9.26. Calling ActionScript from Hyperlinks
Recipe 9.27. Working with Advanced Text Layout
Recipe 9.28. Applying Advanced Anti-Aliasing
Recipe 9.29. Replacing Text
Recipe 9.30. Retrieving a List of System Fonts

Chapter 10. Filters and Transforms
ActionScript lets you to apply several different transforms and filters to display objects (and bitmaps) to change their color, shape, rotation, size, and to apply special effects. Transforms are changes in color, shape, rotation, and size. The remainder of special effects di scussed in this chapter use filters. Filters are native to Flash Player; they allow you to apply effects ranging from blurs to embossing.
Recipe 10.1. Applying Color Changes
Recipe 10.2. Applying Color Tints
Recipe 10.3. Resetting Color
Recipe 10.4. Shearing
Recipe 10.5. Applying Basic Filters
Recipe 10.6. Applying Advanced Filter Effects (Emboss, etc.)
Recipe 10.7. Embossing
Recipe 10.8. Detecting Edges
Recipe 10.9. Sharpening
Recipe 10.10. Making a Digital Negative
Recipe 10.11. Applying Grayscale
Recipe 10.12. Changing Saturation
Recipe 10.13. Changing Brightness
Recipe 10.14. Changing Contrast

Chapter 11. Programmatic Animation
In the earliest versions of Flash, most animation was done by using tweens. An object was placed on a keyframe, another keyframe was made, and the object was changed in some way. Flash filled in the frames in between, hence, the term tween. Using ActionScript, you can create much more dynamic and interactive animation.
Recipe 11.1. Moving an Object
Recipe 11.2. Moving an Object in a Specific Direction
Recipe 11.3. Easing
Recipe 11.4. Acceleration
Recipe 11.5. Springs
Recipe 11.6. Using Trigonometry
Recipe 11.7. Applying Animation Techniques to Other Properties

Chapter 12. Strings
Strings are the fundamental textual element of the ActionScript language. A string is a series of zero or more characters enclosed in single or double quotes. Unlike some other languages, ActionScript does not differentiate between single characters and strings. Both characters and strings are grouped into the String datatype. This chapter gives you a good basic understanding of how to handle this datatype in programs.
Recipe 12.1. Joining Strings
Recipe 12.2. Using Quotes and Apostrophes in Strings
Recipe 12.3. Inserting Special Whitespace Characters
Recipe 12.4. Searching for a Substring
Recipe 12.5. Extracting a Substring
Recipe 12.6. Parsing a String into Words
Recipe 12.7. Removing and Replacing Characters and Words
Recipe 12.8. Retrieving One Character at a Time
Recipe 12.9. Converting Case
Recipe 12.10. Trimming Whitespace
Recipe 12.11. Reversing a String by Word or by Character
Recipe 12.12. Converting Between Strings and Unicode or ASCII

Chapter 13. Regular Expressions
One of the most powerful features added to ActionScript 3.0 is regular expressions. Regular expressions are, put simply, patterns that can be matched against strings. You may be familiar with other types of patterns, such as wildcards, which can be used to match patterns while searching for files. Patterns are also used in Recipe 9.5. Regular expressions support this type of pattern matching, but they are also much more sophisticated.
Recipe 13.1. Understanding Regular Expression Patterns
Recipe 13.2. Testing Regular Expressions
Recipe 13.3. Looking for Pattern Matches
Recipe 13.4. Removing and Replacing Characters and Words Using Patterns
Recipe 13.5. Creating a Nongreedy Pattern
Recipe 13.6. Validating User Input with Common Patterns

Chapter 14. Dates and Times
Recipe 14.1. Finding the Current Date and Time
Recipe 14.2. Retrieving the Date Values
Recipe 14.3. Retrieving the Day or Month Name
Recipe 14.4. Formatting the Date and Time
Recipe 14.5. Formatting Seconds or Milliseconds as Minutes and Seconds
Recipe 14.6. Converting Between DMYHMSM and Epoch Milliseconds
Recipe 14.7. Using Timers
Recipe 14.8. Calculating Elapsed Time or Intervals Between Dates
Recipe 14.9. Parsing a Date from a String

Chapter 15. Programming Sound
In the Flash IDE, you can import sound into the library, put sound on timeline frames, attach sounds to movie clips, and so on. This chapter covers programming sound with ActionScript 3.0, using the Sound class and its related classes SoundChannel, SoundLoaderContext, SoundMixer, and SoundTransform, all part of the flash.media package, so as your first order of business, make sure that you import flash.media.Sound in each example as well as any of the other classes the example use.
Recipe 15.1. Creating a Sound Object and Loading a Sound
Recipe 15.2. Starting and Stopping a Sound
Recipe 15.3. Setting the Buffer for a Sound
Recipe 15.4. Offsetting the Start of a Sound
Recipe 15.5. Playing a Sound Multiple Times (Looping)
Recipe 15.6. Getting the Size of a Sound File
Recipe 15.7. Reading the ID3 Tag of a Sound File
Recipe 15.8. Find Out When a Sound Finishes Playing
Recipe 15.9. Tracking the Progress of a Playing Sound
Recipe 15.10. Pausing and Restarting a Sound
Recipe 15.11. Reading the Level of a Sound
Recipe 15.12. Stopping All Sounds
Recipe 15.13. Reading the Sound Spectrum
Recipe 15.14. Changing the Volume or Pan of a Sound
Recipe 15.15. Creating a Sound Application

Chapter 16. Video
The Flash Player is capable of playing back video. Although it's possible to embed video content within an .swf file, most Flash video content is stored in Flash video files (.flv files) and loaded into the Flash Player at runtime using ActionScript. By loading .flv files at runtime, you have smaller .swf files, more flexible content management, and greater control over the loading and playback of the video content.
Flash video loaded from .flv files has two faces: progressive download and streaming. Streaming .flv video requires a streaming server, such as Flash Media Server. In contrast, progressive download doesn't require any additional software. However, for the most part, the ActionScript required to work with streaming and progressive download video is identical. The recipes in this chapter discuss how to work with progressive download video and focus exclusively on working with .flv files.
Recipe 16.1. Loading and Playing Back Video
Recipe 16.2. Controlling Video Sound
Recipe 16.3. Reading Playback Time
Recipe 16.4. Reading Video Duration
Recipe 16.5. Controlling Playback Time
Recipe 16.6. Scaling Video
Recipe 16.7. Managing and Monitoring Buffering and Loading
Recipe 16.8. Listening for Cue Points
Recipe 16.9. Applying Filters to Video
Recipe 16.10. Pausing and Resuming Video
Recipe 16.11. Stopping Video
Recipe 16.12. Scrubbing Video
Recipe 16.13. Clearing the Video Display
Recipe 16.14. Determining User Bandwidth

Chapter 17. Storing Persistent Data
This chapter focuses solely on local shared objects (LSOs). Local shared objects are similar to browser cookies in that they are stored on the client's machine. LSOs are useful for storing the same kind of information for which cookies have traditionally been used, such as the ability for a web site to remember a user so that the user does not have to manually login during each visit. However, LSOs are more powerful than cookies because, by default, they never expire, they can store more data than cookies, they aren't transmitted between the client and server, and they can store native ActionScript datatypes. In contrast to remote shared objects (RSOs), LSOs are available to use without any additional software involved on either the client or server.
Recipe 17.1. Creating and Opening a Local Shared Object
Recipe 17.2. Writing Data to a Shared Object
Recipe 17.3. Saving a Local Shared Object
Recipe 17.4. Reading Data from a Shared Object
Recipe 17.5. Removing Data from a Shared Object
Recipe 17.6. Serializing Custom Classes
Recipe 17.7. Sharing Data Between Flash Applications
Recipe 17.8. Controlling the Size of Local Shared Objects

Chapter 18. Communicating with Other Movies
Flash Player 6 introduced local connections, a means by which any Flash movie can broadcast to and listen for broadcasts from any other movie on the same computer. This chapter focuses on inter-movie communication through the use of LocalConnection, allowing multiple movies on the same client computer to interact with each other.
Recipe 18.1. Creating Local Connections
Recipe 18.2. Sending Data
Recipe 18.3. Validating Receipt of Communication over Local Connections
Recipe 18.4. Accepting Local Communications from Other Domains

Chapter 19. Sending and Loading Data
Sending and loading data has changed dramatically in ActionScript 3.0. The LoadVars class has been removed and replaced with a more robust URLLoader class in the flash.net package. URLLoader is supported by a new cast of characters, namely URLRequest, URLVariables, and URLStream (and a few others). In this chapter you'll see that these classes combine to form a rich API that offers more functionality and flexibility than what was available in previous versions.
Recipe 19.1. Loading Variables from a Text File
Recipe 19.2. Loading Variables from a Server-Side Script
Recipe 19.3. Loading a Block of Text (Including HTML and XML)
Recipe 19.4. Checking Load Progress
Recipe 19.5. Accessing Data Being Downloaded
Recipe 19.6. Sending Data to a Server-Side Script
Recipe 19.7. Sending Variables and Handling a Returned Result

Chapter 20. XML
ActionScript 3.0 boasts a revolutionary new syntax for working with XML. ECMAScript for XML, otherwise known as E4X, is a language extension that gives you a simpler, easier to read approach for working with XML objects than the traditional Document Object Model (DOM), an interface of the past. Using E4X, you'll find that you can work with XML much easier than before. Additionally, if this is your first time working with XML, E4X dramatically lowers the learning curve of using XML, as the recipes in this chapter illustrate.
Recipe 20.1. Understanding XML Structure (Reading and Writing XML)
Recipe 20.2. Creating an XML Object
Recipe 20.3. Adding Elements to an XML Object
Recipe 20.4. Adding Text Nodes to an XML Object
Recipe 20.5. Adding Attributes to an XML Element
Recipe 20.6. Reading Elements in an XML Tree
Recipe 20.7. Finding Elements by Name
Recipe 20.8. Reading Text Nodes and Their Values
Recipe 20.9. Reading an Element's Attributes
Recipe 20.10. Removing Elements, Text Nodes, and Attributes
Recipe 20.11. Loading XML
Recipe 20.12. Loading XML from Different Domains
Recipe 20.13. Sending XML
Recipe 20.14. Searching XML
Recipe 20.15. Using HTML and Special Characters in XML

Chapter 21. Web Services and Flash Remoting
Flash Remoting and Web services both make asynchronous requests to service methods, and both can be used to create sophisticated client-server applications. The recipes in this chapter look at how to work with these technologies.
Recipe 21.1. Calling Web Services Methods
Recipe 21.2. Handling Web Services Responses
Recipe 21.3. Handling Web Services Errors
Recipe 21.4. Calling Flash Remoting Methods
Recipe 21.5. Handling Flash Remoting Responses

Chapter 22. Building Integrated Applications
The ExternalInterface class allows the Flash Player to communicate in a synchronous manner with the application within which it is embedded. In many cases that host application is a web browser. As such, this chapter focuses exclusively on how to build applications that integrate ActionScript and JavaScript when Flash Player is embedded in a browser.
Recipe 22.1. Calling JavaScript Functions
Recipe 22.2. Calling ActionScript Functions
Recipe 22.3. Passing Parameters from HTML

Chapter 23. File Management
Prior to Version 8, the Flash Player did not support any mechanism for allowing the user to browse their computer for files. Furthermore, Flash Player didn't have a mechanism for uploading or downloading files, either. As such, most web applications used HTML-based solutions for uploading and downloading files. Flash-based applications not deployed on the Web often had to use customized solutions for uploading and downloading files. Flash Player 8 and higher now supports the new APIs, which greatly simplify file I/O by allowing Flash Player to browse a user's system for files to upload and download. Flash Player allows users to browse to files on their local disks and upload and download files using the FileReference and FileReferenceList classes. This chapter discusses the details of working with those APIs
Recipe 23.1. Downloading Files
Recipe 23.2. Detecting When a User Selects a File to Upload
Recipe 23.3. Monitoring Download Progress
Recipe 23.4. Browsing for Files
Recipe 23.5. Filtering Files That Display in the Browser Window
Recipe 23.6. Detecting When the User Has Selected a File to Upload
Recipe 23.7. Uploading Files
Recipe 23.8. Monitoring File Upload Progress

Chapter 24. Socket Programming
Socket connections allow the Flash Player to send and load data from a server over a specified network port.
Binary socket connections are new in ActionScript 3.0 and enable raw connections that allow for transfer of binary information. Binary sockets are slightly more advanced than XML sockets because they require a low-level knowledge of binary datatypes, but they are also more powerful because you can connect to a wider range of socket servers and generally do more with them. For example, binary sockets allow you to connect to mail servers (via POP3, SMTP, and IMAP), news servers (via NNTP), chat servers, or even implement screen sharing and remote desktop applications by connection to a VNC server (via RFB). You'll learn more about how to deal with the asynchronous nature of the Flash Players socket connections as you go through this chapter.
Recipe 24.1. Connecting to a Socket Server
Recipe 24.2. Sending Data
Recipe 24.3. Receiving Data
Recipe 24.4. Handshaking with a Socket Server
Recipe 24.5. Disconnecting from a Socket Server
Recipe 24.6. Handling Socket Errors
5 of 5 people found the following review helpful
HASH(0xa10769f0) out of 5 stars ActionScript 3.0 Cookbook -- Excellent Nov. 17 2006
By Kirk Holbrook - Published on Amazon.com
Format: Paperback
This is an excellent book. I'd recommend it to anyone using Flex 2 (and eventually Flash 9) -- especially now with the limited resources available for ActionScript 3 (AS3). There are a lot of useful examples along with coherent explanations of why the authors are programming the way they are.

The chapter on XML (chapter 20) is a must-read. It includes concise summaries of dealing with XML in AS3, which has changed significantly from AS2. Generally, XML handling is much easier in AS3, but there are some areas that can be really confusing when making the switch from AS2. This book explains most things you'll need to do with XML in AS3.

The chapter titled "Display List" (chapter 6) also contains critical information for developers coming from AS2. The rendering model in Flash Player 9 is completely re-designed -- a move away from the MovieClip class (although it's still in there) to the new DisplayObject class. The examples provided here give some important guidance on working with the various elements in rendering your project's interface.

I particularly like some of the custom classes available as a free download (of course, you should buy the book for those!). For instance, recursive arrays can be a hassle to deal with, but very useful in many projects. One of the classes includes several Array utilities -- one, in particular, that makes dealing with recursive arrays easier.

Of course, there's a lot of other great stuff in this book. I won't touch on all its greatness, but, again, I do recommend it highly.

That said, I do have a few complaints.They are not to dissuade you from buying the book, but to give the authors some feedback, in hopes that they can improve the next edition.

The authors state that this book is not intended to be an introduction to AS3. However, since it's really the first book to market on AS3, I'm sure that many AS3 developers will be looking to it for some introductory material.

The first 60 pages also seem to reinforce this impression. There are many pages devoted to basics of AS3, like creating functions and classes. Forcing these into the Cookbook scheme seems rather trite in several instances. Take, for instance, 2.5 Creating Subclasses. The Problem is stated as "You want to create a class that inherits from an existing class." And the Solution is "Write a subclass using the extends keyword." Now, if I know I want to create a class that inherits from another class, I'm pretty well along the way to knowing that I want to extend the latter. And I can probably find the answer much more readily in the Flex 2 or Flash 9 documentation. I'd rather see an appendix with documentation on the free-to-download custom classes, than 60 pages of very basic AS3.

In the interest of full disclosure, let me say that I have not read any of the Cookbook developer books lately, so some of my remarks may be a bit off base here. But it seems to me that this title falls short of the idea that I have for a Cookbook. There are a lot of good tidbits in here, like creating custom buttons and the inclusion of several custom class files, such as the already mentioned ArrayUtilities class (along with several other useful utilities classes) and the Cards class. But most of the Problems and Solutions are more like ingredients than recipes.

If I were editor of a book like this, I'd aim for more advanced Problems and Solutions that combine the various ingredients to provide a richer set of problems solved. How about solving the following Problems:


<li>I want to create a tile based game. How can I work with various sized grids to create a seamless experience for the user?</li>

<li>I have tons of UI to place in the limits of the users' screens. What are the various ways I can maximize the user experience (view stacks, tabs, and other new containers and navigator classes in AS3)?</li>

<li>I want to program card games using the Cards class. How would I program a version of Blackjack?</li>

<li>I need a reliable and reusable way to hit several web services. What's a good way to split up my code into one or more classes to make this efficient?</li>


Perhaps the Cookbook I'm describing better fits the Hacks series from O'Reilly. Or maybe it's more of an Advanced Cookbook.

But, yes, it's extremely useful. If you're using Flex 2, or plan to use Flash 9, run out and buy a copy -- now!

FYI -- I'm the manager of the <a href="[...]" target="_blank">Maine Flash Platform User Group</a>. I've been using Flash since 1998. And I'm a recent convert to Flex 2.
13 of 16 people found the following review helpful
HASH(0xa1076ad4) out of 5 stars Sometimes great, but sometimes redundant and too wordy April 3 2007
By H. Paul Robertson - Published on Amazon.com
Format: Paperback
The authors for this book are all well-known, top-notch ActionScript developers and experienced authors. They've collected a nice set of tasks that are common enough that you are likely to want to know how to do them in ActionScript, but involved enough or cross-topic enough that you won't be likely to find them in the in-product documentation.

The book also has a very nice supplemental code library. This is sort of a mixed blessing; it's a download, so anyone can get it (not just people who pay for the book) and in several recipes the authors' solution is just to "use class X and method Y from the book's code library," without any explanation as to why the code works, or what it does under the covers. Depending on your coding style, you may or may not want that level of detail, but I'm the sort of person who does want it so it left me a little disappointed.

However, there's also a lot in this book that doesn't fit with my idea of what should be in the "cookbook" format book. In my mind, a "cookbook" is a book whose topics are more "edgy" or involved than what you might find in the core documentation. It should cover how to accomplish specific tasks that aren't easily figured out and aren't found elsewhere (again, especially not in the main documentation). It should also include "hacks" or workarounds to accomplishing things that aren't readily available using the built-in functionality of the language.

This book has plenty of those topics, but it also has a lot of topics that are covered well and in sufficient detail in the in-product help. To make things worse, often those topics are not just given a one-page-or-less "cookbook" treatment (which would be useful for those "I know I've seen it before but I can't quite remember what the syntax is" moments). Instead, they get the full four (or fourteen) page description, and you have to read through that description to extract the three lines of code that you actually need to put into your program.

In summary, I have mixed feelings about this book. When it's good, it really shines--the sections that go into more depth or into a more advanced topic than Adobe's ActionScript 3.0 documentation are really valuable. However, a significant part of the book is redundant with the documentation, doesn't cover it in as much detail as the built-in documentation, but covers it in so much detail that the benefits of the "cookbook" format are lost.