AS3: Adding a Sprite as a child to a Flex Container for example a Canvas

From http://www.sebastiaanholtrop.com/archives/3 use:

import mx.core.*;

var my_canvas:Canvas = new Canvas();
var my_uic:UIComponent = new UIComponent();
var my_sprite:Sprite = new Sprite();

my_canvas.addChild(my_uic);
my_uic.addChild(my_sprite);