What replaces ArcGISDynamicMapService.defaultVisibleLayers() in Flex API 3.x

Question

Greetings Folks, 
I am upgrading my applications to 3.x. A few segments of my code rely on the ol' ArcGISDynamicMapService.defaultVisibleLayers() property. Does anyone have any ideas on how to alternatively get a map service's default visible layers? 
Thanks, Tyler

RobertScheitlin__GISP · Answer

Tyler,

Here is a helper function:    private static function getDefaultVisibleLayers(layerInfos:Array):Array
    {
        var result:Array = [];

for each (var layerInfo:LayerInfo in layerInfos)
        {
            if (layerInfo.parentLayerId >= 0 && result.indexOf(layerInfo.parentLayerId) == -1)
            {
                // layer is not visible if it's parent is not visible
                continue;
            }
            if (layerInfo.defaultVisibility)
            {
                result.push(layerInfo.layerId);
            }
        }

return result;
    }

PaulHastings1 · Answer

maybe getDetails() per layer:

https://developers.arcgis.com/flex/api-reference/com/esri/ags/layers/supportClasses/LayerDetails.html

https://developers.arcgis.com/flex/api-reference/com/esri/ags/layers/supportClasses/LayerDetails.html#defaultVisibility