[FLEX-26999] [flex_next] Single pixel scrolls can cause getItemIndicesInView to return incorrect values

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Later
• Affects Version/s: Adobe Flex SDK Previous
• Component/s: Spark: DataGroup
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 08/Mar/11 10:18
• Updated: 12/Sep/11 14:20
• Resolved: 15/Mar/11 15:13

Description

Steps to reproduce:
1.Import the attached .fxp file into Flash Builder i6(it is a mobile flex project)
2.Run on desktop or device, in debug mode to see trace statements
3.Scroll the hour list to a number
4. When the list has stopped scrolling, listStoppedScrolling will be called in ListPicker.mxml. The function will center the list on a value, and then newValueChosen will be called
5. In newValueChosen function, I get the list of indices on view, var indices:Vector.<int> = list.dataGroup.getItemIndicesInView();

Actual Results:

list.dataGroup.getItemIndicesInView(); returns a list containing 4 values, even though 3 values are on display. (in Flex Hero that was shipped with Burrito, 3 values were correctly returned).

Expected Results:

list.dataGroup.getItemIndicesInView(); should return a list containing only the 3 indices on display.

Workaround (if any):

Use the firstIndexInView and lastIndexInView properties of the layout instead of dataGroup.getItemIndiciesInView().

None