Recieving response multiple times

[ShoaibHussan1]

I am listening event in Viewdidload method.each time view did load get called it adds a listener and receiving response incremented by 1.Please tell me its fixture
here is my code
override func viewDidLoad() {
SocketHelper.sharedHelper().theSocket().emit("EventName", args:[jsonInput])
self.listenEventResponse()
}

func listenEventResponse(){
SocketHelper.sharedHelper().theSocket().on("EventName") { (dataArr:[AnyObject]!) -> Void in
let jsonDictionary = (dataArr as NSArray).objectAtIndex(0)
print(jsonDictionary)
// Here i get printed output multiple times each time added once more
}
}

[nhnam]

Could I have a look on SocketHelper.sharedHelper() implementation ?