My .as class not working in flex project

Question

I have a .as file that extends Sprite and renders visual elements on the screen
package actions {
     import flash.display.Sprite;
     public class MyAction extends Sprite {
          public function MyAction () {
I'm trying to include it as part of a Flex project, to add those shapes to my stage.
I've created a package called actions under src and saved the .as file there.
Because it renders visual elements, I thought I could wrap it as a UI component and add that to the stage.So I created a new .as file MyUIComp.as that basically looks like this:
package actions {
     import actionscript.MyAction; 
     import mx.core.UIComponent;
     public class MyUIComp extends UIComponent {
           private var myAction:MyAction;
          public function MyUIComp() {
               myAction = new MyAction();
then in my main mxml, I'm adding it to a UIComponent like this
<mx:UIComponent      id ="actionLocation" />
and in the script section, wiring it:
private function init():void {    
     var actionToStage:MyUIComp = new MyUIComp();
     actionLocation.addChild(actionToStage);
I don't get any errors, but nothing shows up on the stage either.
Can someone be kind enought to tell me what I maybe doing wrong. I'm a bit new, so maybe I'm missing something obvious.
Thanks,
David
P.S. Ideally I wouldn't create a wrapper MyUIComp class to make my class extend  UIComponent. I would use the original class like this:
     import flash.display.Sprite;
     import mx.core.UIComponent;
     public class MyAction extends Sprite UIComponent {
but this double extends doesn't seem to work

Answer 1

In your custom UIComponent class, your never added your myAction instance. Try this for the MyUIComp constructor:
public function MyUIComp() {
    myAction = new MyAction();
    this.addChild(myAction);
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Greg Lafrance - Flex 2 and 3 ACE certified
www.ChikaraDev.com
Flex / AIR Development, Training, and Support Services