[SOLVED] Adobe Flash Builder: How to make a SWF with a progress bar for loading itself?

Adobe Flash Builder: How to make a SWF with a progress bar for loading itself?

I have an AS3 project that has all its assets embedded using the [Embed] metadata tag because I would like the resulting SWF to be completely self-contained for the sake of portability on the internet.

Problem:
The file size is rather large, and I would like a progress bar to be displayed as it loads itself instead of a blank screen until it's completely finished. I can already achieve this with Adobe Animate (Flash Professional) by having a timeline with a light frame 1 and a heavy frame 2 which has a MovieClip that embeds the bulk of the assets.

I'm trying to switch over to Adobe Flash Builder, which has no IDE timeline, but I'm at a loss on how to do the same thing as the Flash IDE. Does anyone have any ideas on how to accomplish this?

Solution

I found a solution that works with ASC2 / AIR SDK. Although his example preloader extends Sprite, and I believe you need to extend MovieClip to make it work, since you need a frame 2. And you need a gotoAndStop(2) once it has finished loading itself. Additional information here. Man, it's not a good sign when all your reference links go through web.archive.org!