Re: [flexcoders] Drop Target indicator visibility issue

[Alex Harui]

I think the dropIndicator gets its width/height in showDropIndicator.  I think 
there is default drag/drop code in List.  Compare your override against that 
code.


On 9/3/10 9:33 AM, "Philip Smith" <loudj...@hotmail.com> wrote:






Still experiencing the drop indicator visibility issue.

This method handles the 'dragOver event (and is executing):

private function onDragOver(de:DragEvent):void
  {
                de.preventDefault();

                var owner:List = this.owner as List;

                var dropLocal:DropLocation = 
owner.layout.calculateDropLocation(de);
                trace (dropLocal);

                owner.layout.showDropIndicator(dropLoc! al);
}

However, the drop indicator is not visible. I set a breakpoint in the code 
above and it appears the width of the drop indicator is 0...

Any ideas how to get this working?

Thanks.


________________________________
To: flexcoders@yahoogroups.com
From: loudj...@hotmail.com
Date: Thu, 2 Sep 2010 19:15:04 +0000
Subject: [flexcoders] Drop Target indicator visibility issue




   Currently experiencing a 'drop target indicator visibility' issue...

The drop target indicator is not visible when dragging an ItemRenderer in a 
Spark List with the following implementation: ( note the 'dragOver handler' 
(with 'layout.showDropIndicator' behavior) is in the 'onDragOver' method below):

<s:List itemRenderer="GroupItemRenderer"
  dropEnabled="false"
  useVirtualLayout="true"
  width="100%">
<s:layout>
<s:HorizontalLayout  />
</s:layout>
</s:List>

GroupItemRenderer (referenced in the list above):

<s:ItemRenderer autoDrawBackground="true"
dragOver="onDragOver"
dragDrop="onDragDrop(event)",
dragEnter="this.onDragEnter(event)"
>

<fx:Script>
<![CDATA[
 private function onDragOver(de:DragEvent):void
 {
de.preventDefault();
 var owner:List = this.owner as List;

        var dropLocal:DropLocation =           
owner.layout.calculateDropLocation(de);

owner.layout.showDropIndicator(dropLocal);

}

]]>
</fx:Script>

Any ideas on how to get this working?

Thanks,

Philip










--
Alex Harui
Flex SDK Team
Adobe System, Inc.
http://blogs.adobe.com/aharui