Iterating over ArrayCollection while adding and removing items

Question

I want to iterate over an ArrayCollection in Flex while there can be items added and removed.

Since i didn't find a way to use a "classic" Iterator like in Java, which would do the job. I tried the Cursor. But it doesn't really work the way i want it to be ;) So how do I do it nicely ?

    var cursor:IViewCursor = workingStack.createCursor();

    while (!cursor.afterLast)
    {
        // Search
                    deepFirstSearchModified(cursor.current.node,nodeB,cursor.current.way);
        // Delete Node
        cursor.remove();
        // Next Node
        cursor.moveNext();

    }

Solution 1

I think better to use New Collection/Array for opertations as

private function parseSelectedItem(value:IListViewCollection):IListViewCollection{
 var result:Array = new Array();
    for each(var item:Object in value)
    {
        //result.push();
        //result.pop();
    }
    return new ArrayCollection(result) ;
}

Hopes that helps

Solution 2

Try to use the following:

for (var i:int = myArrayCollection.length - 1; i >= 0; i--) {
   myArrayCollection.removeItemAt(i);
}

Solution 3

There is a solution for your problem:

http://www.ericfeminella.com/blog/actionscript-3-apis/

Have a look at the CollectionIterator class.

Cheers