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Flex Article
Debugging Client-Side Code in Flex Applications
Table of Contents
- Introduction
- Installing the Flash Debug Player
- Configuring the Flash Debug Player
- Flash Player Tracing()
- Flex’s XMLObjectOutput
- Command-Line Debugging
- Configuring the Flex Server for Client Debugging
- Configuring and Running Flex’s Client ActionScript Debugger (fdb)
- Other Considerations
- In Conclusion
Installing the Flash Debug Player
The Flex ActionScript debugger, or fdb, relies on the Flash Debug Player to output debugging data to the Flash player log, as well as the fdb command-line debugger. The following step-by-step instructions show how to configure the Flash Debug Player for your debugging environment.
Start by verifying the version of the Flash Debug Player installed in your default browser. The following Flash movie displays information about the Flash player version your browser is running. Click "I" in the lower right corner of the SWF and scroll the information to see the Flash Debug Player version information described below.
The SWF file will identify the Flash Debug Player as the “Content Debugger ActiveX Player” or the “Content Debugger Player” while the standard Flash player displays “Release ActiveX Player” or “Release Player.” Flex requires the version of the debug player to be equal-to or newer than Flash Debug Player version 7,0,14,112. If you already have a version of the Flash Debug Player that works with Flex, you can skip ahead to the "Configuring the Flash Debug Player" section.
If you do not have the debug player installed in your browser, you must uninstall your browser’s Flash release player. To do this, execute the Flash uninstall utility (named: uninstall_flash_player.exe) included in the {flex.rootdir}/bin directory. Note, on Windows, the typical Flex root directory is: C:\Program Files\Macromedia\Flex\bin. Next, install the Flash Debug Player included in the {flex.rootdir}/bin directory. IE requires the ActiveX installer (named: Install Flash Player 7 AX.exe) while other browsers (Opera, Mozilla, and so forth-) require the Flash plug-in installer (named: Install Flash Player 7.exe).
Note: The Flash Debug Player included with Flex is only supported on the Windows XP and Windows 2000 environments. A Linux debug player will be available later in the year.
