addChild removes an object?

[reaktor]

var bitmap:Bitmap = new Bitmap();
bitmap = spritesArray[selectedIndex].getChildAt(0) as Bitmap; //first child is the loaded Bitmap

trace("NUMBER BEFORE: " + spritesArray[selectedIndex].numChildren);
imageHolder.addChild(bitmap);
trace("NUMBER AFTER: " + spritesArray[selectedIndex].numChildren);

---------
OUTPUT:

NUMBER BEFORE: 1
NUMBER AFTER: 0

---------

Why?

I'm trying to use spritesArray as container of Sprites, on which I put loaded Bitmaps - as box of photos in a frame.
When I want to add the Bitmap to imageHolder, it obviously gets deleted from spritesArray. Isn't that only a reference. I get it that any Object can only be a child of oneObject (if they are visible), but spritesArray is not added as child anywhere - so Bitmaps inside it are not visible anywhere else. Or am I missing something big?

What is a solution, to copy it back after it is switched? To duplicate it? Bummer, really.

Thanks for help in advance.

 

[kennethkawamoto]

From the doc:

If you add a child object that already has a different display object container as a parent, the object is removed from the child list of the other display object container.

This applies to all display object containers whether they are added as children or not.

One solution is make your "spritesArray" an Array. Arrays are not DisplayObjectContainers.

Kenneth Kawamoto

http://www.materiaprima.co.uk