スウィフトの画像表示エリアに画像が表示されませんでした

Question

ビューコントローラに画像ビューがありますが、奇妙なことに画像ビュー内に画像を表示できません。これは、ページの中央または他のビューコントローラのどこかに配置されています。イメージビューとイメージピッカーの私のコードは以下の通りです。

そして、これが出力されます。矢印画像は」予想地域でトンショーのdoesn：

profileImageView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true 
profileImageView.bottomAnchor.constraint(equalTo: nameTextField.topAnchor, constant: -12).isActive = true 
profileImageView.widthAnchor.constraint(equalToConstant: 150).isActive = true 
profileImageView.heightAnchor.constraint(equalToConstant: 150).isActive = true 

profileImageView.image = UIImage(named: "arrow_long_left") 
profileImageView.translatesAutoresizingMaskIntoConstraints = false 
profileImageView.contentMode = .scaleAspectFill 
profileImageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleSelectProfileImageView))) 
profileImageView.isUserInteractionEnabled = true 
view.addSubview(profileImageView) 



func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) { 

     var selectedImageFromPicker: UIImage? 

     if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage { 
      selectedImageFromPicker = editedImage 
     } else if let originalImage = info["UIImagePickerControllerOriginalImage"] as? UIImage { 
      selectedImageFromPicker = originalImage 
     } 

     if let selectedImage = selectedImageFromPicker { 
      profileImageView.image = selectedImage 
     } 

     dismiss(animated: true, completion: nil) 
    } 

func handleSelectProfileImageView() { 

     let imagePicker = UIImagePickerController() 

     if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.photoLibrary) { 
      imagePicker.delegate = self 
      imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary 
      //picker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)! 
      imagePicker.allowsEditing = true 
      self.present(imagePicker, animated: true, completion: nil) 
     } 

     /*else if (UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera) { 
      let picker = UIImagePickerController() 
      picker.delegate = self 
      picker.sourceType = UIImagePickerControllerSourceType.camera; 
      picker.allowsEditing = true 
      present(picker, animated: true, completion: nil) 

     }*/ 
    } 
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) { 
     print("canceled picker") 
     dismiss(animated: true, completion: nil) 
    } 

Answer 1

あなたのコードはここにオフになっている：

profileImageView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true 
profileImageView.bottomAnchor.constraint(equalTo: nameTextField.topAnchor, constant: -12).isActive = true 
profileImageView.widthAnchor.constraint(equalToConstant: 150).isActive = true 
profileImageView.heightAnchor.constraint(equalToConstant: 150).isActive = true 

私の推測では、あなたがより多くのこのような何かをしたいです：

profileImageView.leadingAnchor.constraint(equalTo: nameTextField.trailingAnchor, constant:10).isActive = true 
profileImageView.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant:10).isActive = true 
profileImageView.topAnchor.constraint(equalTo: nameTextField.topAnchor).isActive = true 
profileImageView.bottomAnchor.constraint(equalTo: emailTextField.bottomAnchor).isActive = true 

幅と高さを150に固定する場合は、少し調整する必要があります。しかし、今はビューのcenterXに固定されているので、水平に配置されています。名前の下に固定されていますTextField - もちろん名前の上ですTextField