[FLEX-34006] RTE null object reference in ViewTransitionBase.captureEndValues() when Skin does not provide an ActionBar

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache Flex 4.11.0
• Fix Version/s: Apache Flex 4.12.0
• Component/s: Mobile: ViewNavigator
• Labels: easyfix easytest
• Assignee: Justin Mclean
• Reporter: Vincent Spallek
• Created: 18/Dec/13 17:13
• Updated: 26/Dec/13 00:20
• Resolved: 26/Dec/13 00:20

Description

Steps to reproduce:

• Create a Skin for ViewNavigator that does not provide an actionBar which is not a required SkinPart, see ViewNavigator
• Apply that Skin to a ViewNavigator
• Add a View that navigates to another View via navigator.pushView()
• In that second View, call navigator.popView()

Expected result:
The default backward transition is played, and the first view ist diplayed again.

Actual result:
this.actionBar is accessed, but it is null:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at spark.transitions::ViewTransitionBase/captureEndValues()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/mobilecomponents/src/spark/transitions/ViewTransitionBase.as:755]
at spark.components::ViewNavigator/completeTransitionPreparations()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/mobilecomponents/src/spark/components/ViewNavigator.as:2251]
at spark.components::ViewNavigator/prepareViewTransition()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/mobilecomponents/src/spark/components/ViewNavigator.as:2180]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/framework/src/mx/core/UIComponent.as:13413]
at mx.managers::LayoutManager/doPhasedInstantiation()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:852]
at mx.managers::LayoutManager/doPhasedInstantiationCallback()[/Users/justinmclean/Documents/ApacheFlex4.11.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:1188]