The only FXG editor I've seen for Flex is by 7jigen, works online or as a Flex app.
Does anyone know of a different one? It can be done in Illustrator I think, but that doesn't really offer a simple export to Flex type option, just gives coordinates.
As far as I know your best bet (if you don't want to use Illustrator) is to grab Inkscape and install the "save as FXG" plug-in. Hats off to JazzyNico for writing what is basically a monster SVG to FXG "XSL Transform" (i.e. XSLT).
How to install:
Drop both files in your Inkscape "extensions" folder.
$HOME/.config/inkscape/extensionsC:\Documents and Settings\User\Application Data\Inkscape\extensions/Applications/Inkscape.app/Contents/Resources/extensionsRestart Inkscape and you'll find a new FXG entry in the "File > Save As" dialog.
This plugin has been a boon for me and my work, since I've become quite comfortable with Inkscape over the years.
Unfortunately (and this may just be my setup), I've found that whenever I save as FXG, a few minutes later Inkscape crashes out (I really should post a bug report). Just in case you have the same problem, make sure you go to the "Save" preferences and turn on auto-backup. Also, keep in mind that certain constructs in SVG have no equivalent in FXG. Don't ask me what they are, I honestly can't remember.
I have used this process to generate a ton of FXG assets that I have imported into my Flex projects.
1. Draw the shape in Flash CS5
2. Break the shape apart (Ctrl+B)
3. Select the shape
4. File -> Export -> Export Selection
5. Save as FXG
You can then import them directly into Flex and voila! Good to go!
Use Inkscape SVG editor: it will allows you to convert svg to fxg starting version 0.49 thanks to the svg2fxg plug-in.
In the mean time (version 0.48) you can install the svg2fxg plug-in manually as explained by RIAGrande:
Install Inkscape http://inkscape.org/download/
Get the 2 svg2fxg plug-in files from here (from head repository):
http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/view/head:/share/extensions/svg2fxg.inx
http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/view/head:/share/extensions/svg2fxg.xsl
and copy them in Inkscape extension folder (C:\Program Files (x86)\Inkscape\share\extensions on Windows 7)
You can now start Inkscape and will get a new "File -> Save As -> Flash XML graphics (*.svg)" entry.
I successfully tested it and used the fxg generated assets in on IPhone: it works fine :-)
Firstly, RIAGrande's answer is correct. I followed his steps and they worked. Here is a little more information for future reference:
The Inkscape bug report for FXG with downloads available under Patches can be found at https://bugs.launchpad.net/inkscape/+bug/625140. These files (when uncompressed) should be copied to the location mentioned by RIAGrande
I made my little icon, but he exported FXG file was not indented, so used http://xmlindent.com/ to fomat the file, Downloaded, copied to my project in Flash Builder and renamed as .fxg file.
To use the FXG file, did the following:
<s:Group>
<local:fxgInkscapeIcon height="100" width="100" x="50" y="50"/>
</s:Group>
For posterity, here is the icon and resulting Inkscape FXG code:
<?xml version="1.0" encoding="UTF-8"?>
<Graphic xmlns="http://ns.adobe.com/fxg/2008" xmlns:fxg="http://ns.adobe.com/fxg/2008" xmlns:d="http://ns.adobe.com/fxg/2008/dt" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" xmlns:svg="http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd" version="2.0" viewWidth="16" viewHeight="16">
<mask>
<Group>
<Rect width="16" height="16">
<fill>
<SolidColor color="#ffffff" alpha="1"/>
</fill>
</Rect>
</Group>
</mask>
<!--Unknown tag: defs-->
<!--Unknown tag: sodipodi:namedview-->
<!--Unknown tag: metadata-->
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</fill>
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