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POAdobe Air: scroller throws error when changes focus between different applications
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  1. POAdobe Air: scroller throws error when changes focus between different applications
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    copied!<pre><code>TypeError: Error #1009: Cannot access a property or method of a null object reference. at spark.components::Scroller/focusInHandler()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Scroller.as:2139] at flash.display::Stage/set focus() at mx.core::UIComponent/setFocus()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:9905] at spark.components::RichEditableText/setFocus()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\RichEditableText.as:3126] at spark.components.supportClasses::SkinnableTextBase/setFocus()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\supportClasses\SkinnableTextBase.as:1874] at mx.managers::FocusManager/activateWindowHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\FocusManager.as:740] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::UIComponent/dispatchEvent()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:13152] at spark.components::WindowedApplication/nativeWindow_activateHandler()[E:\dev\4.y\frameworks\projects\airspark\src\spark\components\WindowedApplication.as:2739] </code></pre> <p>In my Adobe Air program, I got the above error, whenever I use my app, and switch focus around between this app and other applications. (I've tried several times and this error is reproducible.)</p> <p>What causes this problem and how to fix it?</p> <p>EDIT: my program has a stackview, and one of the stackviews has a list. This error above will occur when the list has at least one object in. </p>
 

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