[FLEX-33165] RTE on Scroller when rotating device in mobile simulator

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK 4.6 (Release)
• Fix Version/s: Apache Flex 4.11.0
• Component/s: Spark: Scroller
• Labels: EasyFix
• Assignee: Unassigned
• Reporter: Maurice Amsellem (old)
• Created: 09/Aug/12 09:13
• Updated: 25/Jul/13 05:11
• Resolved: 25/Jul/13 05:11

Description

When rotating the mobile simulator (Menu Device>Rotate left or right), I get the following error:

Error #1056: Cannot create property null on spark.components.DataGroup.

at spark.components::Scroller/http://www.adobe.com/2006/flex/mx/internal::snapElement()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Scroller.as:1571]
	at spark.components::Scroller/checkScrollPosition()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Scroller.as:1750]
	at spark.components::Scroller/handleSizeChange()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Scroller.as:1766]
	at spark.components::Scroller/handleSizeChangeOnUpdateComplete()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Scroller.as:2048]

In Scroller:1571 viewport[scrollProperty] = snapScrollPosition;
scrollProperty is null, which trigger the RTE.

Scroller belongs to a spark:List with HorizontalLayout and verticalScrollPolicy style is set to ScrollPolicy.OFF.

also, the RTE does not seem to occur on the real device, but maybe it is just swallowed...