Flex 4: Enumerating Spark List items

问题

How to enumerate items of Spark List component after setting dataProvider property?

I mean accessing them as DisplayObject instances.

回答1:

Iterate over list.dataGroup.numElements, calling list.dataGroup.getElementAt(i):

var i:int = 0;
var n:int = list.dataGroup.numElements;
for (i; i < n; i++)
{
    // getElementAt returns an IVisualElement, but most displayobjects
    // in a list will be IVisualElement (which a UIComponent implements)
    var displayObject:DisplayObject = list.dataGroup.getElementAt(i) as DisplayObject;
}

来源：https://stackoverflow.com/questions/2554075/flex-4-enumerating-spark-list-items