ios - How to share image in instagram?Swift -

sorry question without code.but didn't find anywhere for. want share image title in instagram? how can that?

any great

    class viewcontroller: uiviewcontroller, uidocumentinteractioncontrollerdelegate {      var yourimage: uiimage?     var documentcontroller: uidocumentinteractioncontroller!      func sharetoinstagram() {       let instagramurl = nsurl(string: "instagram://app")              if (uiapplication.sharedapplication().canopenurl(instagramurl!)) {                  let imagedata = uiimagejpegrepresentation(yourimage!, 100)                  let captionstring = "caption"             let writepath = (nstemporarydirectory() nsstring).stringbyappendingpathcomponent("instagram.igo")            if imagedata?.writetofile(writepath, atomically: true) == false {                      return                  } else {    let fileurl = nsurl(fileurlwithpath: writepath)                      self.documentcontroller = uidocumentinteractioncontroller(url: fileurl)                      self.documentcontroller.delegate = self                      self.documentcontroller.uti = "com.instagram.exlusivegram"                      self.documentcontroller.annotation = nsdictionary(object: captionstring, forkey: "instagramcaption")                           self.documentcontroller.presentopeninmenufromrect(self.view.frame, inview: self.view, animated: true)                  }              } else {                 print(" instagram isn't installed ")             }         }      }      } 

now still wont work ios 9, have go apps info.plist, add "lsapplicationqueriesschemes" type: array, , add url scheme in case "instagram".