Extracting asset from swf file?

Question

As I am building a Flex framework for minigames, I plan to bundle a bunch of graphic assets (movieclip symbols) into a single swf file, which I will load into my Flex application, before extracting the symbols from the swf file for use in my application. My question is this: how do I do this through actionscript?

Thanks!

Answer 1

I'd try to create an asset/icon library AS file.

something along the lines of

package 
{

public class IconLibrary
{

 /*
 *  Framework Icons
 */

 [Embed (source="../assets/fof_graphics.swf", symbol="clapperboard_icon")]
 public static const clapperBoardIcon:Class;
 [Embed (source="../assets/fof_graphics.swf", symbol="clapperboard_over_icon")]
 public static const clapperBoardOverIcon:Class;
 [Embed (source="../assets/fof_graphics.swf", symbol="close_button")]
 public static const closeButton:Class;
 [Embed (source="../assets/fof_graphics.swf", symbol="close_over")]
 public static const closeOverButton:Class;

    public function IconLibrary()
 {
 }

  }

}

Then all you need to do is

source="{IconLibrary.clapperBoardIcon}"

or whatever the name of the asset you wish to show.

Answer 2

If you don't want to use EMBED and you don't want to load the assets on runtime I reccomend you exporting the swf as an SWC.

This way, you can browse SWC files from actionscript. You can event check on compile time that a sub-movieclip inside anotehr movieclip exists.

If you are using flex compiler then remember adding this when you compile:

-library-path C:\path\to\your\file.swc

If you're using FDT you have an option to auto add the SWC as arguments.

Here's a demo on how to do it with FDT. Not sure which tool are you using. If it's the commercial Flex Builder the process should be similar.

I think that's what you're looking for.

Answer 3

Hi,

Lot's of good solutions here, here's one for if you are loading the swf at runtime and want to extract assets, you can do the following in your loader complete event listener:

var c:Class = Class(LoaderInfo(e.target).applicationDomain.getDefinition("myClassDefinitionName"));

This will store the asset from the swf as a Class object so you can create instances of it like so:

var asset:MovieClip = new c();