Swift５ 撮った写真がボタンのimageに反映されない

Question

前提・実現したいこと

カメラで撮った写真をボタンのsetimageに反映させたい

発生している問題・エラーメッセージ

撮った写真をphotoImageの中に入れて、ボタンに撮った写真を反映させるためにsetImageの中にphotoImageを入れて反映させようとしたのですが全く表示されません。何方か教えてくれると助かります。

該当のソースコード

ソースコード
 @IBOutlet weak var hospitalText: UITextField!
    
    @IBOutlet weak var examinationText: UITextField!
    
    @IBOutlet weak var cameraImage: UIButton!
    
    
    @IBOutlet weak var LoadIndicator: UIActivityIndicatorView!
    
    
    var photoImage : UIImage!
    
    var imageFile :String!
    
    var downloadUrl: String!
    
    private let db = Firestore.firestore()
    
    private  let userID = Auth.auth().currentUser?.uid
    
   
    
    
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        LoadIndicator.center = view.center
        LoadIndicator.style = .large
        LoadIndicator.color = .blue
        view.addSubview(LoadIndicator)
        examinationText.delegate = self
        hospitalText.delegate = self
    }
    
    func textFieldShouldReturn(_ textField:UITextField ) -> Bool{
        
        hospitalText.resignFirstResponder()
        examinationText.resignFirstResponder()
        return true
    }
    
    
    
    func getTime() -> String{
        //時間を取得する
        let dt = Date()
        let dateFormatter = DateFormatter()
        //日付の書式&日本時間にする
        dateFormatter.dateFormat = DateFormatter.dateFormat(fromTemplate: "yMMMdHm", options: 0, locale:  Locale(identifier: "ja_JP"))
         let date = dateFormatter.string(from:dt)
        
        return date
    }
    
    func uploadImage() -> String {
       
        
        let storage = Storage.storage().reference(forURL: String(describing: "Medicine"))
        
        let imageRef = storage.child("MedicineImage").child("(userID)")
        
        let imageData:Data = photoImage.pngData()!
       
        imageRef.putData(imageData,metadata: nil){ (metaData,error) in
            
              if error != nil{
                 print(error.debugDescription)
                 return
               }
            }
        imageRef.downloadURL(){ url,err  in
            
            if let url = url {
                self.downloadUrl =  url.absoluteString
                print("(String(describing: self.downloadUrl))")
            }else{
                print(err as Any)
            }
         }
         return downloadUrl
     }
        
      
    
     
    
   
    
    private func Add()  {
        
          imageFile = uploadImage()
        
         db.collection("users").document("(userID!)").collection("medicinedata").document((getTime())).setData([
            "hospitalData": hospitalText.text! ,
            "examinationData": examinationText.text!,
            "time": getTime(),
            "photoData": imageFile!
          ])
      }
    
    
    
    @IBAction func startUiImagePickerController(_ sender: Any) {
        //カメラを起動する
        if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.camera){
        let picker =  UIImagePickerController()
        picker.sourceType = .camera
        picker.modalPresentationStyle = UIModalPresentationStyle.fullScreen
        picker.delegate = self
        present(picker, animated: true, completion: nil)
            
       }
    }
    
    
    private func imagePickController(_ imagePick: UIImagePickerController,didFinishPickingMediaWithInfo  info: [UIImagePickerController.InfoKey : Any])  {
        
        if let photo = info[.originalImage] as? UIImage{
            photoImage = photo
            
            cameraImage.setImage(photoImage, for: .normal)
            imagePick.dismiss(animated: true, completion: nil)
            
        }else{
            
            let dialog = UIAlertController(title: "画像を取得出来ませんでした", message: nil, preferredStyle: .alert)
            let dialogAction = UIAlertAction(title: "OK", style: .default, handler: nil)
            dialog.addAction(dialogAction)
            present(dialog, animated: true, completion: nil)
            
        }
    }