ios - Trying to save UiimageView but code is saving all of the page. In swift -

these 5 lines of code saving photo saving whole screen. save button acting screen on laptop. have uiimageview outlet imagepicker displays photo. want uimmmageview saved , not whole page.

my outlets name camerascreen. have tried insert in code not work. app takes photo , puts graphic on well.

here code

import uikit class camera:  uiviewcontroller, uiimagepickercontrollerdelegate,   uinavigationcontrollerdelegate, uitextfielddelegate { @iboutlet weak var camerascreen: uiimageview!     var screenview: uiimageview!   @ibaction func camera(_ sender: anyobject) {      if uiimagepickercontroller.issourcetypeavailable(uiimagepickercontrollersourcetype.camera){         let imagepicker = uiimagepickercontroller()         imagepicker.delegate = self         imagepicker.sourcetype = uiimagepickercontrollersourcetype.camera;         imagepicker.allowsediting = false         self.present(imagepicker, animated: true, completion: nil)}}              func imagepickercontroller(_ picker: uiimagepickercontroller, didfinishpickingimage image: uiimage!, editinginfo: [nsobject: anyobject]!){                 camerascreen.image = image                 self.dismiss(animated: true, completion: nil);                 screenview = uiimageview()                 screenview.frame = cgrect(x:0, y: 0, width: self.view.frame.width, height: self.view.frame.height)                        let text = "java"                     let label = uilabel(frame: cgrect(x: 125, y: 400, width: self.view.frame.width, height: 300))                     label.font = uifont(name: label.font.fontname, size: 200)                      label.textcolor = uicolor.blue                     label.alpha = 0.3                     label.text = text                      self.view.addsubview(screenview)                     self.view.addsubview(label)    }  @ibaction func save(_ sender: anyobject) {          let alert = uialertcontroller(title: "image saved", message: "", preferredstyle: .alert)     let okay = uialertaction(title: "ok", style: .default, handler: nil)     alert.addaction(okay)     present(alert, animated: true, completion: nil)         uigraphicsbeginimagecontext(self.view.frame.size)    self.view.drawhierarchy(in: self.view.frame, afterscreenupdates: true)    let photo = uigraphicsgetimagefromcurrentimagecontext()     uigraphicsendimagecontext()     uiimagewritetosavedphotosalbum(photo!, nil, nil, nil)   }}