删除显示对象容器的所有子级并使其为空

Posted 2021-02-24

I create this recursive function to remove and null all children inside a display object container.

function removeAllChildren(parentChild:*):void
{
	for(var i:uint = 0; i < parentChild.numChildren;++i)
	{
		//check if child is a DisplayObjectContainer, which could hold more children
		if(parentChild.getChildAt(i) is DisplayObjectContainer) removeAllChildren(DisplayObjectContainer(parentChild.getChildAt(i)));
		else
		{
			//remove and null child of parent
			var child:DisplayObject = parentChild.getChildAt(i);
			parentChild.removeChild(child);
			child = null;
		}
 
	}
	//remove and null parent
	parentChild.parent.removeChild(parentChild);
	parentChild = null;
}
 
 
//usage with a movieclip
removeAllChildren(yourMc);
 
 
//usage with your root
removeAllChildren(root);