swift - UIAlertController on button click -

opening uialertcontroller on button click, action going open main issue uialertaction methods not performed on click. here code block :

  class homeviewcontroller: uiviewcontroller {          override func viewdidload() {             super.viewdidload()              // getdata()         }          override func didreceivememorywarning() {             super.didreceivememorywarning()             // dispose of resources can recreated.         }  //menubtn button      @ibaction func menubtn(sender: uibutton) {           let optionmenu = uialertcontroller(title: nil, message: nil, preferredstyle: .actionsheet)          let orders = uialertaction(title: "orders", style: .default, handler: { (alert: uialertaction!) -> void in             let alertviewcontroller = self.storyboard?.instantiateviewcontrollerwithidentifier("ordersviewcontroller") as! ordersviewcontroller             self.presentviewcontroller(alertviewcontroller, animated: true, completion: nil)         })           let = uialertaction(title: "about", style: .default, handler: {(alert: uialertaction!) -> void in             let aboutobject = self.storyboard?.instantiateviewcontrollerwithidentifier("aboutviewcontroller") as! aboutviewcontroller             self.presentviewcontroller(aboutobject, animated: true, completion: nil)              })          let contactus = uialertaction(title: "contact us", style: .default, handler: {(alert: uialertaction!) -> void in              let alertviewcontroller = self.storyboard?.instantiateviewcontrollerwithidentifier("contactviewcontroller") as! contactviewcontroller             self.presentviewcontroller(alertviewcontroller, animated: true, completion: nil)         })          let login = uialertaction(title: "login", style: .default, handler: {(alert: uialertaction!) -> void in             let alertviewcontroller = self.storyboard?.instantiateviewcontrollerwithidentifier("loginviewcontroller") as! loginviewcontroller             self.presentviewcontroller(alertviewcontroller, animated: true, completion: nil)         })          let cancelaction = uialertaction(title: "cancel", style: .cancel, handler: nil)           optionmenu.addaction(orders)         optionmenu.addaction(about)         optionmenu.addaction(contactus)         optionmenu.addaction(login)         optionmenu.addaction(cancelaction)          self.presentviewcontroller(optionmenu, animated: true, completion: nil)     } 

this code working fine, have checked it's opening new viewcontroller well.

cross check points:

1. controller class , stroybaord connected
2. storyboard id has been assigned
3. ibaction must connected iboutlet