Home → Robotlegs 2 →

how prevent child context to be destroyed?

• Edit

wayne

07 Aug, 2014 03:21 AM

hello!
when the child module be removed from its parent, I don't want the child module context to be destroyed.
how prevent child context to be destroyed?

1. Support Staff 1 Posted by Ondina D.F. on 07 Aug, 2014 01:35 PM

   

   Hello Wayne,

   As you know, a context is automatically destroyed when its contextView is removed from stage.

   StageSyncExtension:

   private function onRemovedFromStage(event:Event):void
   {
       _logger.debug("Context view has left the stage. Destroying context...");
       _contextView.removeEventListener(Event.REMOVED_FROM_STAGE, onRemovedFromStage);
       _context.destroy();
   }
   

   You can use event.stopImmediatePropagation(); in the handler of Event.REMOVED_FROM_STAGE in your contextView (your module) to prevent the framework from listening for that event. The context won't be destroyed, but, I think that you'll run into problems if/when you want to add the module to the stage again.

   I'm not sure if there is a more elegant solution to this, that's why I've notified Shaun and creynders, in the hope they can give you additional solutions on how to detain a childContext.

   Can you tell us why do you need to keep the module's context alive when you remove the module?

   Ondina

   • Edit

2. 2 Posted by wayne on 07 Aug, 2014 03:09 PM

   

   Thank you very much! Great!
   that's good way,I'm going to test it.
   Reason for keep the module's context alive is :
   i want to use the module as a singleton.
   I don't want to rebuild the module instance, when the module is added to displayl list again.Repeat an instance is created, a waste of system resources, but also the risk of leaking

   • Edit

3. Support Staff 3 Posted by Ondina D.F. on 08 Aug, 2014 08:19 AM

   

   You're welcome, Wayne. Since you're content with this solution, I'll mark this discussion as resolved. You can re-open it, if need be.

   • Edit

4. Ondina D.F. closed this discussion on 08 Aug, 2014 08:19 AM.