Launching pdf reader for document on SD card in android from actionscript

I have tried to use the URLRequest to make that work, but I'm having problems.

My Included files has a pdf called "test.pdf". I just want to see if I can open it up when I press the button.

(My code is below)

When it runs the dynamic text called 'test' displays "app:/test.pdf". think my URL is the issue. I'm having trouble pointing the browser to a local file. Ultimately I would like to point it to a directory on the SDCard, but this is my first test.

I REALLY wish we could open these in their native applications. If I can't get this to work then I guess I'm going to have to code my app in JAVA. Doh!

Thanks!

Mike

import flash.filesystem.*;

var dir = File.applicationDirectory;

loadBtn.addEventListener(MouseEvent.CLICK, loadPDF);

function loadPDF(e:MouseEvent):void{

  var myFile = dir.resolvePath("test.pdf");

  test.text = myFile.url;

  var req:URLRequest = new URLRequest("test.pdf");

navigateToURL(req);

}