ios - How to receive an image from cloudkit? -

i using code store image in icloud, code use retrieave , place in uiimageview? i've tried everything, wont work?

func saveimageincloud(imagetosave: uiimage) {     let newrecord:ckrecord = ckrecord(recordtype: "imagerecord")      let nsdocumentdirectory = nssearchpathdirectory.documentdirectory     let nsuserdomainmask = nssearchpathdomainmask.userdomainmask     if let paths = nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, true) {         if paths.count > 0 {             if let dirpath = paths[0] as? string {                 let writepath = dirpath.stringbyappendingpathcomponent("image2.png")                 uiimagepngrepresentation(imagetosave).writetofile(writepath, atomically: true)                  var file : ckasset?  = ckasset(fileurl: nsurl(fileurlwithpath: writepath))                 newrecord.setvalue(file, forkey: "image")              }         }     }      if let database = self.privatedatabase {         database.saverecord(newrecord, completionhandler: { (record:ckrecord!, error:nserror! ) in             if error != nil {                 nslog(error.localizeddescription)             } else {                 dispatch_async(dispatch_get_main_queue()) {                     println("finished")                 }             }         })     } 

just read ckrecord wrote , can ckasset reading key image. can uiimage using code below.

var file : ckasset? = record.objectforkey("image")  func image() -> uiimage? {     if let file = file {         if let data = nsdata(contentsofurl: file.fileurl) {             return uiimage(data: data)         }     }     return nil }