Adobe Air: scroller throws error when changes focus between different applications

Question

TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at spark.components::Scroller/focusInHandler()[E:\\dev\\4.y\\frameworks\\proje         


        

Answer 1

I've got the same problem in one of my projects and looks like it's known bug of SDK. In my case I just wrote custom Scroller class where added focusManager != null check. Something like

package components
{
    import flash.events.FocusEvent;
    import spark.components.Scroller;
    public class MyScroller extends Scroller
    {
        public function MyScroller()
        {
            super();
        }

        override protected function focusInHandler(event:FocusEvent):void
        {
            if(focusManager != null) {
                super.focusInHandler(event);
            }
        }
    }
}

Best regrads, Roman