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How could remove event listener properly — Gideros Forum
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    How could remove event listener properly

    RickyngkRickyngk Member
    edited April 2012 in General questions
    Hi,

    For quick implement, sometimes I use addEventListener as following:
    mySprite:addEventListener("onMyEvent", 
	function(event)
		print("active my event")
	end
)
    However, I don't know how to remove that event listener, because I can't get "listener" value.
    EventDispatcher:removeEventListener(type, listener, data)
    Count I remove all listeners of type, without declare listener and data?

    Thanks,
    http://www.guava7.com/
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    Comments

    • techdojotechdojo Guru
      I would actually recommend NOT using anonymous functions (or closures) in that way for that very reason.
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    • ar2rsawseenar2rsawseen Maintainer
      edited April 2012 
      local listener = function(event)
	print("active my event")
end
mySprite:addEventListener("onMyEvent", listener)
 
mySprite:removeEventListener("onMyEvent", listener)
      You only need to be aware of scopes, if you remove listener in other scope, then you either make listener as property of bigger scope (as class, for example), or make it global.

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    • CyberienceCyberience Member
      Well I could be wrong, but I do this....
      local timer = Timer.new(5000, 1)
      timer:addEventListener(Event.TIMER,
      function(event)
      --[[Do my shit here in 5 seconds]]
      end
      )
      timer:start()
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    • atilimatilim Maintainer
      @Cyberience Also there is a shortcut for this:
      Timer.delayedCall(5000, function()
  -- do your stuff
end)

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