Flash :: Null Object Reference In ScrollPane/endDrag() When ScrollDrag=true?
Mar 9, 2010
In my flash application, I've got multiple windows which use Scrollpanes. The scrollDrag property is set to true on these because I want that functionality. If I close (within my application) one of these 'windows' and open another, I seem to get a whole lot of this error showing up in my logs:TypeError: Error #1009: Cannot access a property or method of a null object reference.at fl.containers::ScrollPane/endDrag()Sometimes I get thousands of these, which I'm guessing is probably slowing my app down a bit, but otherwise is not causing a problem. Looking through the adobe code for scrollpane, endDrag is really simple:
protected function endDrag(event:MouseEvent):void {
stage.removeEventListener(MouseEvent.MOUSE_MOVE, doDrag);
}
The stage var is the only thing that could be null here.The only thing I can think to do is set scrollDrag=false before the window in my application closes so that nothing is listening for the event
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Jun 16, 2010
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I have a scrollpane component that is scrolling a movie object.I need to be able to use scrollDrag since it is an app for my phone.It works on the phone, but when I test it on the computer I get an error that I'm guessing will slow the app down as I keep using it.
The error message is TypeError: Error #1009: Cannot access a property or method of a null object reference.at fl.containers::ScrollPane/endDrag()
When I click on the scrollpane to pull up the component properties, if I uncheck scrollDrag the error message go away, but it will not scroll on the phone.When I check the box, it works on the phone but the error message comes back.I don't see a place to put any kind of value in for the scrollDrag in the component properties to keep from having a null reference.
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[Code]..
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