book

Developing AIR applications with Flex

Name: Developing AIR applications with Flex
Author: Adobe Systems
ISBN: 00120090015SI

by Adobe Systems

January 2008

Intermediate to advanced

574 pages

10h 25m

English

Adobe Systems

Read now

Unlock full access

1. Installation instructions
1.1. Adobe AIR runtime installation1.1.1. Installing the AIR runtime1.1.2. Uninstalling the AIR runtime1.1.3. Installing and running the AIR sample applications1.2. Setting up the Flex 3 SDK1.2.1. About the AIR SDK command line tools1.2.2. Install the Flex 3 SDK1.2.3. Compiler setup1.2.4. Debugger setup1.2.5. Application packager setup
2. Getting started
2.1. Introducing Adobe AIR2.2. Finding AIR Resources2.3. Creating your first Flex AIR application in Flex Builder2.3.1. Run Flex Builder and create an AIR project2.3.2. Write the AIR application code2.3.3. Test the AIR application2.3.4. Package, sign, and run your AIR application2.4. Creating your first AIR application with the Flex SDK2.4.1. Create the AIR application descriptor file2.4.2. Write the application code2.4.3. Compile the application2.4.4. Test the application2.4.5. Create the AIR installation file
3. AIR development tools
3.1. Developing AIR applications with Flex Builder3.1.1. Creating AIR projects with Flex Builder3.1.2. Debugging AIR applications with Flex Builder3.1.3. Packaging AIR applications with Flex Builder3.1.3.1. Digitally signing your AIR applications3.1.4. Create an AIR Library project3.2. Creating an AIR application using the command line tools3.2.1. Compiling an AIR application with the amxmlc compiler3.2.2. Compiling an AIR component or library with the acompc compiler3.2.2.1. Component compiler configuration file3.2.2.2. acompc examples3.2.3. Using the AIR Debug Launcher (ADL)3.2.3.1. Launching an application with ADL3.2.3.2. Printing trace statements3.2.3.3. ADL Examples3.2.3.4. Connecting to the Flash Debugger (FDB)3.2.3.5. ADL exit and error codes3.2.4. Packaging an AIR installation file using the AIR Developer Tool (ADT)3.2.4.1. Packaging an AIR installation file3.2.4.2. ADT command line signing options3.2.4.3. Creating an unsigned AIR intermediate file with ADT3.2.4.4. Signing an AIR intermediate file with ADT3.2.5. Creating a self-signed certificate with ADT3.2.6. Using Apache Ant with the SDK tools3.2.6.1. Using Ant for simple projects3.2.6.2. Using Ant for more complex projects3.3. Using the Flex AIR components3.3.1. About file system controls3.3.2. FileSystemComboBox control3.3.2.1. Creating a FileSystemComboBox control3.3.2.2. FileSystemComboBox user interaction3.3.3. FileSystemTree control3.3.3.1. Creating a FileSystemTree control3.3.3.2. FileSystemTree user interaction3.3.4. FileSystemList control3.3.4.1. Creating a FileSystemList control3.3.4.2. FileSystemList user interaction3.3.5. FileSystemDataGrid control3.3.5.1. Creating a FileSystemDataGrid control3.3.5.2. FileSystemDataGrid user interaction3.3.6. FileSystemHistoryButton control3.3.6.1. Creating a FileSystemHistoryButton control3.3.6.2. FileSystemHistoryButton user interaction3.3.7. Example: Displaying a directory structure with Flex AIR3.3.8. About the HTML control3.3.8.1. Creating an HTML control3.3.8.2. HTML control user interaction3.3.9. About the FlexNativeMenu control3.3.9.1. Creating a FlexNativeMenu control3.3.9.1.1. Creating an application or window menu3.3.9.1.2. Creating a context menu3.3.9.1.3. Creating a pop-up menu3.3.9.2. Defining FlexNativeMenu menu structure and data3.3.9.2.1. Specifying and using menu entry information3.3.9.2.2. Menu entry types3.3.9.2.3. Menu attributes3.3.9.2.4. Considerations for XML-based FlexNativeMenu data providers3.3.9.2.5. Example: An Array FlexNativeMenu data provider3.3.9.2.6. Example: An XML FlexNativeMenu data provider3.3.9.3. Specifying menu item keyboard equivalents3.3.9.3.1. About key equivalents3.3.9.3.2. Example: FlexNativeMenu key equivalent commands3.3.9.3.3. Example: Using custom logic for multi-platform key equivalent menu commands3.3.9.4. Specifying menu item mnemonics3.3.9.5. Handling FlexNativeMenu control events3.3.10. About window containers3.3.10.1. Controlling window chrome3.3.10.2. WindowedApplication container3.3.10.3. Window container
4. Application development essentials
4.1. AIR security4.1.1. Installation and updates4.1.1.1. AIR runtime installation location4.1.1.2. Seamless install (runtime and application)4.1.1.3. Manual install4.1.1.4. Application installation flow4.1.1.5. Application destination4.1.1.6. The AIR file system4.1.1.7. AIR application storage4.1.1.8. Updating Adobe AIR4.1.1.9. Updating AIR applications4.1.1.10. Uninstalling an AIR application4.1.1.11. Uninstalling Adobe AIR4.1.1.12. Windows registry settings for administrators4.1.2. Sandboxes4.1.2.1. About the AIR application sandboxes4.1.2.2. The application sandbox4.1.2.3. Privileges of content in non-application sandboxes4.1.2.3.1. Restrictions on loading CSS, frame, iframe, and img elements4.1.3. HTML security4.1.3.1. Overview on configuring your HTML-based application4.1.3.2. Code restrictions for content in different sandboxes4.1.3.2.1. Restrictions on using the JavaScript eval() method and similar techniques4.1.3.2.2. Restrictions on access to AIR APIs (for non-application sandboxes)4.1.3.2.3. Restrictions on calling the JavaScript Window.open() method4.1.3.2.4. Errors when calling restricted code4.1.4. Scripting between content in different domains4.1.4.1. About the AIR sandbox bridge4.1.4.2. Sandbox bridge example (SWF)4.1.4.3. Sandbox bridge example (HTML)4.1.4.4. Limiting API exposure4.1.5. Writing to disk4.1.6. Working securely with untrusted content4.1.6.1. Security.allowDomain()4.1.6.2. Scripting between application and non-application content4.1.6.3. Protection against dynamically generating unsafe SWF content4.1.7. Best security practices for developers4.1.7.1. Risk from importing files into the application security sandbox4.1.7.2. Risk from using an external source to determine paths4.1.7.3. Risk from using, storing, or transmitting insecure credentials4.1.7.4. Risk from a downgrade attack4.1.8. Code Signing4.2. Setting AIR application properties4.2.1. The application descriptor file structure4.2.2. Defining properties in the application descriptor file4.2.2.1. Defining the basic application information4.2.2.2. Defining the installation folder and program menu folder4.2.2.3. Defining the properties of the initial application window4.2.2.4. Specifying icon files4.2.2.5. Providing a custom user interface for application updates4.2.2.6. Allowing browser invocation of the application4.2.2.7. Declaring file type associations4.3. New functionality in Adobe AIR4.3.1. New runtime classes4.3.2. Runtime classes with new functionality4.3.3. New Flex components4.3.4. Service monitoring framework classes
5. Windows, menus, and taskbars
5.1. Working with native windows5.1.1. AIR window basics5.1.1.1. Windows in AIR5.1.1.2. Native Window classes5.1.1.3. Native window event flow5.1.1.4. Properties controlling native window style and behavior5.1.1.4.1. Window Types5.1.1.4.2. Window chrome5.1.1.4.3. Window transparency5.1.1.4.4. Transparency in an MXML application window5.1.1.4.5. Transparency in an HTML application window5.1.1.5. A visual window catalog5.1.2. Creating windows5.1.2.1. Specifying window initialization properties5.1.2.2. Creating the initial application window5.1.2.2.1. Creating the initial window with Flex5.1.2.2.2. Creating the initial window with ActionScript5.1.2.3. Creating a new mx:Window5.1.2.4. Creating a new NativeWindow5.1.2.5. Creating a new HTML window5.1.2.6. Adding content to a window5.1.2.6.1. Loading Flash content within an HTML page5.1.2.7. Example: Creating a native window5.1.3. Managing windows5.1.3.1. Getting a NativeWindow instance5.1.3.2. Activating, showing and hiding windows5.1.3.3. Changing the window display order5.1.3.4. Closing a window5.1.3.5. Allowing cancellation of window operations5.1.3.6. Maximizing, minimizing, and restoring a window5.1.3.7. Example: Minimizing, maximizing, restoring and closing a window5.1.3.8. Resizing and moving a window5.1.3.9. Example: Resizing and moving windows5.1.4. Listening for window events5.1.5. Displaying full-screen windows5.2. Screens5.2.1. Screen basics5.2.2. Enumerating the screens5.3. Working with native menus5.3.1. AIR menu basics5.3.1.1. AIR menu classes5.3.1.2. Menu varieties5.3.1.3. Menu structure5.3.1.4. Menu events5.3.1.5. Key equivalents for menu commands5.3.1.6. Mnemonics5.3.1.7. Menu item state5.3.1.8. Attaching an object to a menu item5.3.2. Creating native menus5.3.2.1. Creating a root menu object5.3.2.2. Creating a submenu5.3.2.3. Creating a menu command5.3.2.4. Creating a menu separator line5.3.3. About context menus5.3.4. About context menus in HTML5.3.5. Defining native menus declaratively5.3.6. Displaying pop-up menus5.3.7. Handling menu events5.3.7.1. Events summary for menu classes5.3.7.2. Selecting menu events5.3.7.3. Displaying menu events5.3.8. Example: Window and application menu5.4. Taskbar icons5.4.1. About taskbar icons5.4.2. Dock icons5.4.2.1. Dock icon menus5.4.2.2. Bouncing the dock5.4.2.3. Dock icon events5.4.3. System Tray icons5.4.3.1. System tray icon menus5.4.3.2. System tray icon tooltips5.4.3.3. System tray icon events5.4.3.4. Example: Creating an application with no windows5.4.4. Window taskbar icons and buttons5.4.4.1. Highlighting the taskbar window button5.4.4.2. Creating windows without taskbar buttons or icons
6. Files and data
6.1. Working with the file system6.1.1. AIR file basics6.1.2. Working with File objects6.1.2.1. About the File class6.1.2.2. Paths of File objects6.1.2.3. Pointing a File object to a directory6.1.2.3.1. Pointing to the user's home directory6.1.2.3.2. Pointing to the user's documents directory6.1.2.3.3. Pointing to the desktop directory6.1.2.3.4. Pointing to the application storage directory6.1.2.3.5. Pointing to the application directory6.1.2.3.6. Pointing to the filesystem root6.1.2.3.7. Pointing to an explicit directory6.1.2.3.8. Navigating to relative paths6.1.2.3.9. Letting the user browse to select a directory6.1.2.3.10. Pointing to the directory from which the application was invoked6.1.2.4. Pointing a File object to a file6.1.2.4.1. Pointing to an explicit file path6.1.2.4.2. Enumerating files in a directory6.1.2.4.3. Letting the user browse to select a file6.1.2.5. Modifying File paths6.1.2.6. Supported URL schemes6.1.2.7. Finding the relative path between two files6.1.2.8. Obtaining canonical versions of file names6.1.2.9. Working with packages and symbolic links6.1.3. Getting file system information6.1.4. Working with directories6.1.4.1. Creating directories6.1.4.2. Creating a temporary directory6.1.4.3. Enumerating directories6.1.4.4. Copying and moving directories6.1.4.5. Deleting directory contents6.1.5. Working with files6.1.5.1. Getting file information6.1.5.2. Copying and moving files6.1.5.3. Deleting a file6.1.5.4. Moving a file to the trash6.1.5.5. Creating a temporary file6.1.6. Reading and writing files6.1.6.1. Workflow for reading and writing files6.1.6.2. Working with FileStream objects6.1.6.2.1. FileStream open modes6.1.6.2.2. Initializing a FileStream object, and opening and closing files6.1.6.2.3. The position property of a FileStream object6.1.6.2.4. The read buffer and the bytesAvailable property of a FileStream object6.1.6.2.5. Asynchronous programming and the events generated by a FileStream object opened asynchronously6.1.6.2.6. Data formats, and choosing the read and write methods to use6.1.6.3. Example: Reading an XML file into an XML object6.1.6.4. Example: Reading and writing data with random access6.2. Drag and Drop6.2.1. Drag and drop basics6.2.2. Supporting the drag-out gesture6.2.2.1. Preparing data for transfer6.2.2.2. Starting a drag-out operation6.2.2.3. Completing a drag-out transfer6.2.3. Supporting the drag-in gesture6.2.3.1. Steps in a typical drop operation6.2.3.2. Acknowledging a drag-in gesture6.2.3.3. Completing the drop6.2.3.4. Updating the visual appearance of a component6.2.3.5. Tracking mouse position during a drag-in gesture6.2.4. HTML Drag and drop6.2.4.1. Default drag and drop behavior6.2.4.2. Drag-and-drop events in HTML6.2.4.3. MIME types for the HTML drag-and-drop6.2.4.4. Drag effects in HTML6.2.4.5. Dragging data out of an HTML element6.2.4.6. Dragging data into an HTML element6.2.4.6.1. Enabling drag-in6.2.4.6.2. Getting the dropped data6.2.4.7. Example: Overriding the default HTML drag-in behavior6.2.4.8. Handling file drops in non-application HTML sandboxes6.3. Copy and paste6.3.1. Copy-and-paste basics6.3.2. Reading from and writing to the system clipboard6.3.3. HTML copy and paste6.3.3.1. Default behavior6.3.3.2. Using the clipboardData property of the event object6.3.4. Menu commands and keystrokes for copy and paste6.3.4.1. Starting a copy or paste operation with a menu command6.3.4.2. Starting a copy or paste command with a keystroke6.3.5. Clipboard data formats6.3.5.1. Standard data formats6.3.5.2. Custom data formats6.3.5.2.1. Transfer modes6.3.5.2.2. Reading and writing custom data formats6.3.5.3. Deferred rendering6.3.5.3.1. Pasting text using a deferred rendering function6.4. Working with byte arrays6.4.1. Reading and writing a ByteArray6.4.1.1. ByteArray methods6.4.1.2. The position property6.4.1.3. The bytesAvailable and length properties6.4.1.4. The endian property6.4.1.5. The compress() and uncompress() methods6.4.1.6. Reading and writing objects6.4.2. ByteArray example: Reading a .zip file6.5. Working with local SQL databases6.5.1. About local SQL databases6.5.1.1. Uses for local SQL databases6.5.1.2. About AIR databases and database files6.5.1.3. About relational databases6.5.1.4. About SQL6.5.1.5. About SQL database classes6.5.1.6. About synchronous and asynchronous execution modes6.5.2. Creating and modifying a database6.5.2.1. Creating a database6.5.2.2. Creating database tables6.5.3. Manipulating SQL database data6.5.3.1. Connecting to a database6.5.3.2. Working with SQL statements6.5.3.3. Using parameters in statements6.5.3.3.1. Understanding statement parameters6.5.3.3.2. Using named parameters6.5.3.3.3. Using unnamed parameters6.5.3.3.4. Benefits of using parameters6.5.3.4. Retrieving data from a database6.5.3.4.1. Executing a SELECT statement6.5.3.4.2. Accessing SELECT statement result data6.5.3.4.3. Defining the data type of SELECT result data6.5.3.4.4. Retrieving SELECT results in parts6.5.3.5. Inserting data6.5.3.5.1. Executing an INSERT statement6.5.3.5.2. Retrieving a database-generated primary key of an inserted row6.5.3.6. Changing or deleting data6.5.3.7. Working with multiple databases6.5.3.8. Handling database errors6.5.3.8.1. Connection errors6.5.3.8.2. Syntax errors6.5.3.8.3. Constraint errors6.5.3.9. Working with database data types6.5.4. Using synchronous and asynchronous database operations6.5.4.1. Using synchronous database operations6.5.4.1.1. Writing code for synchonous operations6.5.4.1.2. Executing an operation that depends on another operation6.5.4.1.3. Handling errors with synchronous execution6.5.4.2. Understanding the asynchronous execution model6.5.5. Strategies for working with SQL databases6.5.5.1. Distributing a pre-populated database6.5.5.2. Improving database performance6.5.5.2.1. Use one SQLStatement instance for each SQL statement6.5.5.2.2. Group multiple operations in a transaction6.5.5.2.3. Minimize runtime processing6.5.5.2.4. Avoid schema changes6.5.5.3. Best practices for working with local SQL databases6.5.5.3.1. Pre-create database connections6.5.5.3.2. Reuse database connections6.5.5.3.3. Favor asynchronous execution mode6.5.5.3.4. Use separate SQL statements and don't change the SQLStatement's text property6.5.5.3.5. Use statement parameters6.5.5.3.6. Use constants for column and parameter names6.6. Storing encrypted data
7. HTML content
7.1. About the HTML environment7.1.1. Overview of the HTML environment7.1.1.1. About the JavaScript environment and its relationship to the AIR runtime7.1.1.2. About security7.1.1.3. About plug-ins and embedded objects7.1.2. AIR and Webkit extensions7.1.2.1. JavaScript in AIR7.1.2.1.1. HTML Sandboxes7.1.2.1.2. JavaScript eval() function7.1.2.1.3. Function constructors7.1.2.1.4. Loading external scripts7.1.2.1.5. The XMLHttpRequest object7.1.2.1.6. The Canvas object7.1.2.1.7. Cookies7.1.2.1.8. The Clipboard object7.1.2.1.9. Drag and Drop7.1.2.1.10. innerHTML and outerHTML properties7.1.2.1.11. Document.write() and Document.writeln() functions7.1.2.1.12. Document.designMode property7.1.2.1.13. unload events (for body and frameset objects)7.1.2.1.14. JavaScript Window object7.1.2.1.15. air.NativeApplication object7.1.2.1.16. The javascript URL scheme7.1.2.2. Extensions to HTML7.1.2.2.1. HTML frame and iframe elements7.1.2.2.2. HTML Canvas element7.1.2.2.3. HTML element event handlers7.1.2.2.4. HTML contentEditable attribute7.1.2.3. Extensions to CSS7.1.2.4. Unsupported standard and extended features7.2. Programming in HTML and JavaScript7.2.1. About the HTMLLoader class7.2.1.1. Loading HTML content from a URL7.2.1.2. Loading HTML content from a string7.2.1.3. Important security rules when using HTML in AIR applications7.2.2. Avoiding security-related JavaScript errors7.2.2.1. Causes security-related JavaScript errors7.2.2.2. Mapping application content to a different sandbox7.2.2.3. eval() function7.2.2.4. Assigning properties to an object7.2.2.5. Creating a new function with variables available in context7.2.2.6. Creating an object using the name of the class as a string parameter7.2.2.7. setTimeOut() and setInterval()7.2.2.8. Function constructor7.2.2.9. javascript: URLs7.2.2.10. Event callbacks assigned through onevent attributes in innerHTML and outerHTML statements7.2.2.11. Loading JavaScript files from outside the application installation directory7.2.2.12. document.write() and document.writeln()7.2.2.13. Synchronous XMLHttpRequests before the load event or during a load event handler7.2.2.14. Dynamically created script elements7.2.3. Accessing AIR API classes from JavaScript7.2.3.1. Using the AIRAliases.js file7.2.4. About URLs in AIR7.2.5. Making ActionScript objects available to JavaScript7.2.5.1. A basic example of accessing JavaScript objects from ActionScript7.2.5.2. Making class definitions available to JavaScript7.2.5.3. Removing event listeners7.2.6. Accessing DOM and JavaScript objects from ActionScript7.2.7. Using ActionScript libraries within an HTML page7.2.8. Converting Date and RegExp objects7.2.9. Manipulating an HTML stylesheet from ActionScript7.2.10. Cross-scripting content in different security sandboxes7.2.10.1. AIR security sandboxes and JavaScript code7.2.10.2. Loading application content into a non-application sandbox7.2.10.3. Setting up a sandbox bridge interface7.2.10.4. Establishing a child sandbox bridge7.2.10.5. Establishing a parent sandbox bridge7.2.10.6. Accessing a parent sandbox bridge during page loading7.3. Handling HTML-related events7.3.1. HTMLLoader events7.3.2. Handling DOM events with ActionScript7.3.3. Responding to uncaught JavaScript exceptions7.3.4. Handling runtime events with JavaScript7.3.4.1. Creating an event handler function7.3.4.1.1. Removing event listeners in HTML pages that navigate7.4. Scripting the HTML Container7.4.1. Display properties of HTMLLoader objects7.4.1.1. Basic display properties7.4.1.2. Transparency of HTMLLoader content7.4.1.3. Scaling HTMLLoader content7.4.1.4. Considerations when loading SWF or PDF content in an HTML page7.4.1.5. Advanced display properties7.4.2. Scrolling HTML content7.4.3. Accessing the HTML history list7.4.4. Setting the user agent used when loading HTML content7.4.5. Setting the character encoding to use for HTML content7.4.6. Defining browser-like user interfaces for HTML content7.4.6.1. About extending the HTMLHost class7.4.6.2. Example: Extending the HTMLHost class7.4.6.3. Handling changes to the window.location property7.4.6.4. Handling JavaScript calls to window.moveBy(), window.moveTo(), window.resizeTo(), window.resizeBy()7.4.6.5. Handling JavaScript calls to window.open()7.4.6.6. Handling JavaScript calls to window.close()7.4.6.7. Handling changes of the window.status property7.4.6.8. Handling changes of the window.document.title property7.4.6.9. Handling JavaScript calls to window.blur() and window.focus()7.4.6.10. Creating windows with scrolling HTML content7.4.7. Creating subclasses of the HTMLLoader class
8. Rich media content
8.1. Adding PDF content8.1.1. Detecting PDF Capability8.1.2. Loading PDF content8.1.3. Scripting PDF content8.1.3.1. HTML-PDF communication basics8.1.3.2. Scripting PDF content from ActionScript8.1.4. Known limitations for PDF content in AIR8.2. Using digital rights management8.2.1. Understanding the encrypted FLV workflow8.2.2. Changes to the NetStream class8.2.3. Using the DRMStatusEvent class8.2.3.1. DRMStatusEvent properties8.2.3.2. Creating a DRMStatusEvent handler8.2.4. Using the DRMAuthenticateEvent class8.2.4.1. DRMAuthenticateEvent properties8.2.4.2. Creating a DRMAuthenticateEvent handler8.2.4.3. Creating an interface for retrieving user credentials8.2.5. Using the DRMErrorEvent class8.2.5.1. DRMErrorEvent properties8.2.5.2. Creating a DRMErrorEvent handler
9. Interacting with the operating system
9.1. Application launching and exit options9.1.1. Application invocation9.1.2. Capturing command line arguments9.1.2.1. Example: Invocation event log9.1.3. Launching on login9.1.4. Browser invocation9.1.5. Application termination9.2. Reading application settings9.2.1. Reading the application descriptor file9.2.2. Getting the application and publisher identifiers9.3. Working with runtime and operating system information9.3.1. Managing file associations9.3.2. Getting the runtime version and patch level9.3.3. Detecting AIR capabilities9.3.4. Tracking user presence
10. Networking and communications
10.1. Monitoring network connectivity10.1.1. Detecting network connectivity changes10.1.2. Service monitoring basics10.1.3. Detecting HTTP connectivity10.1.4. Detecting socket connectivity10.2. URL requests and networking10.2.1. Using the URLRequest class10.2.1.1. URLRequest properties10.2.1.2. Setting URLRequest defaults10.2.1.3. Using AIR URL schemes in URLs10.2.1.3.1. Using URL schemes in AIR10.2.1.4. Prohibited URL schemes10.2.2. Changes to the URLStream class10.2.3. Opening a URL in the default system web browser10.3. Inter-application communication

11. Distributing and updating applications
11.1. Distributing, Installing, and Running AIR applications11.1.1. Installing and running an AIR application from the desktop11.1.2. Installing and running an AIR applications from a web page11.1.2.1. About customizing the seamless install badge.swf11.1.2.2. Using the badge.swf file to install an AIR application11.1.2.2.1. Installing the AIR application from a seamless install link in a web page11.1.2.2.2. Modifying the badge.swf file11.1.2.3. Loading the air.swf file11.1.2.4. Checking if the AIR runtime is installed11.1.2.5. Checking from a web page if an AIR application is installed11.1.2.6. Installing an AIR application from the browser11.1.2.7. Launching an installed AIR application from the browser11.1.3. Digitally signing an AIR file11.1.3.1. Information about code-signing certificates11.1.3.2. About AIR code signing11.1.3.3. About AIR publisher identifiers11.1.3.4. About Certificate formats11.1.3.5. Timestamps11.1.3.6. Obtaining a certificate11.1.3.7. Terminology11.2. Updating AIR applications11.2.1. About updating applications11.2.1.1. Results of the method call11.2.1.2. About the version string11.2.2. Presenting a custom application update user interface11.2.3. Downloading an AIR file to the user's computer11.2.4. Checking to see if an application is running for the first time

Content preview from Developing AIR applications with Flex

/. As a special case, can be the empty string, which is interpreted as 'the machine from which the URL is being interpreted.' For this reason, file URLs often have three slashes (///).appUse this to specify a path relative to the root directory of the installed application (the directory that contains the application.xml file for the installed application). For example, the following path points to an images subdirectory of the directory of the installed application: app:/imagesapp-storageUse this to specify a path relative to the application store directory. For each installed application, AIR defines a unique application store directory, which is a useful place to store data specific to that application. For example, the following path points ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.

Julian F.

Head of Cybersecurity

I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.

Addison B.

Field Engineer

I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.

Amir M.

Data Platform Tech Lead

I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.

Mark W.

Embedded Software Engineer

Macromedia® Flash™ MX 2004 for Rich Internet Applications

Publisher Resources

ISBN: 00120090015SI

Cloud Computing

Data Engineering

Data Science

AI & ML

Programming Languages

Software Architecture

IT/Ops

Security

Design

Business

Soft Skills

Developing AIR applications with Flex

by Adobe Systems

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.