Code load Xib under Swift

import uikitclass formcontroller: uiviewcontroller {         override init (nibname nibnameornil: string?, bundle nibbundleornil:  NSBundle?)  {         super.init (nibname: nibnameornil,  Bundle: nibbundleornil)         //println (nibName);     }    convenience init ()  {         var nibnameornil = string? ("Formcontroller")         //         //consider that the Xib file may not exist or be deleted, so add Judgment//        if nsbundle.mainbundle (). Pathforresource (nibnameornil, oftype:  "Xib")  == nil{   nibnameornil =  nil}                 self.init (Nibname: nibnameornil, bundle: nil)      }    required init (Coder adecoder: nscoder)  {         fatalerror ("Init (coder:)  has not been implemented")      }                     override func viewdidload ()  {               }    override func  Didreceivememorywarning ()  {        super.didreceivememorywarning ( )         // dispose of any resources that  can be recreated.    }        /*     // marK: - navigation    // in a storyboard-based application,  you will often want to do a little preparation before  Navigation    override func prepareforsegue (segue: uistoryboardsegue,  Sender: anyobject?)  {        // get the new view controller  using segue.destinationviewcontroller.        // pass  the selected object to the new view controller.     }    */}

Code load Xib under Swift