[FLEX-33916] Dispatch Scroll Events either from Scroller or (better) from viewport

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Spark: Scroller
• Assignee: Unassigned
• Reporter: Giles Roadnight
• Created: 19/Nov/13 20:38
• Updated: 19/Nov/13 20:38

Description

I am trying to implement some custom scrolling behaviour (specifically a pull to refresh implementation similar to http://www.riagora.com/2011/05/pull-down-to-refresh/ ) and I am very surprised to find out that the only way I can get information on the scroll position of the view port is to add a property change event listener to the dataGroup of the list, check the property for the magic string of "verticalScrollPosition" and then get the actual position. Dispatching a ScrollEvent of some sort will allow me to write much neater and resilient code.