Get enum from matching associated value












0















How do I select an enum that's associated value as a UIImage matches a UIImage?



enum ClothingType: String {
case head
case body
case pants

var imageForClothingType: UIImage {
switch self {
case .head: return #imageLiteral(resourceName: "hatsicon")
case .body: return #imageLiteral(resourceName: "bodyicon")
case .pants: return #imageLiteral(resourceName: "pantsicon")
}
}
}


I want to select the corresponding ClothingType from the button that gets pressed:



@IBAction func chooseClothingType (_ sender: UIButton) {

let theImage: UIImage = sender.currentImage!
let matchingType: ClothingType = theImage
confirmClothingType(type: matchingType)
}

func confirmClothingType (type: ClothingType) {
// perform needed function
}









share|improve this question



























    0















    How do I select an enum that's associated value as a UIImage matches a UIImage?



    enum ClothingType: String {
    case head
    case body
    case pants

    var imageForClothingType: UIImage {
    switch self {
    case .head: return #imageLiteral(resourceName: "hatsicon")
    case .body: return #imageLiteral(resourceName: "bodyicon")
    case .pants: return #imageLiteral(resourceName: "pantsicon")
    }
    }
    }


    I want to select the corresponding ClothingType from the button that gets pressed:



    @IBAction func chooseClothingType (_ sender: UIButton) {

    let theImage: UIImage = sender.currentImage!
    let matchingType: ClothingType = theImage
    confirmClothingType(type: matchingType)
    }

    func confirmClothingType (type: ClothingType) {
    // perform needed function
    }









    share|improve this question

























      0












      0








      0








      How do I select an enum that's associated value as a UIImage matches a UIImage?



      enum ClothingType: String {
      case head
      case body
      case pants

      var imageForClothingType: UIImage {
      switch self {
      case .head: return #imageLiteral(resourceName: "hatsicon")
      case .body: return #imageLiteral(resourceName: "bodyicon")
      case .pants: return #imageLiteral(resourceName: "pantsicon")
      }
      }
      }


      I want to select the corresponding ClothingType from the button that gets pressed:



      @IBAction func chooseClothingType (_ sender: UIButton) {

      let theImage: UIImage = sender.currentImage!
      let matchingType: ClothingType = theImage
      confirmClothingType(type: matchingType)
      }

      func confirmClothingType (type: ClothingType) {
      // perform needed function
      }









      share|improve this question














      How do I select an enum that's associated value as a UIImage matches a UIImage?



      enum ClothingType: String {
      case head
      case body
      case pants

      var imageForClothingType: UIImage {
      switch self {
      case .head: return #imageLiteral(resourceName: "hatsicon")
      case .body: return #imageLiteral(resourceName: "bodyicon")
      case .pants: return #imageLiteral(resourceName: "pantsicon")
      }
      }
      }


      I want to select the corresponding ClothingType from the button that gets pressed:



      @IBAction func chooseClothingType (_ sender: UIButton) {

      let theImage: UIImage = sender.currentImage!
      let matchingType: ClothingType = theImage
      confirmClothingType(type: matchingType)
      }

      func confirmClothingType (type: ClothingType) {
      // perform needed function
      }






      swift






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 21 '18 at 2:43









      user10194586user10194586

      448




      448
























          2 Answers
          2






          active

          oldest

          votes


















          2














          By doing so, you are violating the philosophy of MVC and the point of using enum. You should use the enum, which is a much simpler data object, for all the underlying operations, and only render the image when displaying, and never read the image back since you should already know its underlying enum value on behalf of the image.



          I would set the tag attribute for the UIButton and make the enum inherit Int. Let say you have 3 UIButton, then set their tags to 0,1,2(or their clothingType.rawValue programatically) respectively. You can then retrieve the enum with the following implementation:



          enum ClothingType: Int {
          case head = 0
          case body = 1
          case pants = 2

          var imageForClothingType: UIImage {
          switch self {
          case .head: return #imageLiteral(resourceName: "hatsicon")
          case .body: return #imageLiteral(resourceName: "bodyicon")
          case .pants: return #imageLiteral(resourceName: "pantsicon")
          }
          }
          }

          @IBAction func chooseClothingType (_ sender: UIButton) {

          if let matchingType: ClothingType = ClothingType(rawValue: sender.tag)
          {
          confirmClothingType(type: matchingType)
          }
          }





          share|improve this answer

































            0














            I would subclass UIButton and create a property to set the ClothingType.



            class ClothingButton: UIButton {
            var type: ClothingType? {
            didSet {
            setImage(type?.imageForClothingType, for: .normal)
            }
            }
            }

            class ClothingViewController: UIViewController {
            @IBAction func chooseClothingType (_ sender: ClothingButton) {
            print(sender.type.debugDescription)
            }
            }





            share|improve this answer























              Your Answer






              StackExchange.ifUsing("editor", function () {
              StackExchange.using("externalEditor", function () {
              StackExchange.using("snippets", function () {
              StackExchange.snippets.init();
              });
              });
              }, "code-snippets");

              StackExchange.ready(function() {
              var channelOptions = {
              tags: "".split(" "),
              id: "1"
              };
              initTagRenderer("".split(" "), "".split(" "), channelOptions);

              StackExchange.using("externalEditor", function() {
              // Have to fire editor after snippets, if snippets enabled
              if (StackExchange.settings.snippets.snippetsEnabled) {
              StackExchange.using("snippets", function() {
              createEditor();
              });
              }
              else {
              createEditor();
              }
              });

              function createEditor() {
              StackExchange.prepareEditor({
              heartbeatType: 'answer',
              autoActivateHeartbeat: false,
              convertImagesToLinks: true,
              noModals: true,
              showLowRepImageUploadWarning: true,
              reputationToPostImages: 10,
              bindNavPrevention: true,
              postfix: "",
              imageUploader: {
              brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
              contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
              allowUrls: true
              },
              onDemand: true,
              discardSelector: ".discard-answer"
              ,immediatelyShowMarkdownHelp:true
              });


              }
              });














              draft saved

              draft discarded


















              StackExchange.ready(
              function () {
              StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53404587%2fget-enum-from-matching-associated-value%23new-answer', 'question_page');
              }
              );

              Post as a guest















              Required, but never shown

























              2 Answers
              2






              active

              oldest

              votes








              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              2














              By doing so, you are violating the philosophy of MVC and the point of using enum. You should use the enum, which is a much simpler data object, for all the underlying operations, and only render the image when displaying, and never read the image back since you should already know its underlying enum value on behalf of the image.



              I would set the tag attribute for the UIButton and make the enum inherit Int. Let say you have 3 UIButton, then set their tags to 0,1,2(or their clothingType.rawValue programatically) respectively. You can then retrieve the enum with the following implementation:



              enum ClothingType: Int {
              case head = 0
              case body = 1
              case pants = 2

              var imageForClothingType: UIImage {
              switch self {
              case .head: return #imageLiteral(resourceName: "hatsicon")
              case .body: return #imageLiteral(resourceName: "bodyicon")
              case .pants: return #imageLiteral(resourceName: "pantsicon")
              }
              }
              }

              @IBAction func chooseClothingType (_ sender: UIButton) {

              if let matchingType: ClothingType = ClothingType(rawValue: sender.tag)
              {
              confirmClothingType(type: matchingType)
              }
              }





              share|improve this answer






























                2














                By doing so, you are violating the philosophy of MVC and the point of using enum. You should use the enum, which is a much simpler data object, for all the underlying operations, and only render the image when displaying, and never read the image back since you should already know its underlying enum value on behalf of the image.



                I would set the tag attribute for the UIButton and make the enum inherit Int. Let say you have 3 UIButton, then set their tags to 0,1,2(or their clothingType.rawValue programatically) respectively. You can then retrieve the enum with the following implementation:



                enum ClothingType: Int {
                case head = 0
                case body = 1
                case pants = 2

                var imageForClothingType: UIImage {
                switch self {
                case .head: return #imageLiteral(resourceName: "hatsicon")
                case .body: return #imageLiteral(resourceName: "bodyicon")
                case .pants: return #imageLiteral(resourceName: "pantsicon")
                }
                }
                }

                @IBAction func chooseClothingType (_ sender: UIButton) {

                if let matchingType: ClothingType = ClothingType(rawValue: sender.tag)
                {
                confirmClothingType(type: matchingType)
                }
                }





                share|improve this answer




























                  2












                  2








                  2







                  By doing so, you are violating the philosophy of MVC and the point of using enum. You should use the enum, which is a much simpler data object, for all the underlying operations, and only render the image when displaying, and never read the image back since you should already know its underlying enum value on behalf of the image.



                  I would set the tag attribute for the UIButton and make the enum inherit Int. Let say you have 3 UIButton, then set their tags to 0,1,2(or their clothingType.rawValue programatically) respectively. You can then retrieve the enum with the following implementation:



                  enum ClothingType: Int {
                  case head = 0
                  case body = 1
                  case pants = 2

                  var imageForClothingType: UIImage {
                  switch self {
                  case .head: return #imageLiteral(resourceName: "hatsicon")
                  case .body: return #imageLiteral(resourceName: "bodyicon")
                  case .pants: return #imageLiteral(resourceName: "pantsicon")
                  }
                  }
                  }

                  @IBAction func chooseClothingType (_ sender: UIButton) {

                  if let matchingType: ClothingType = ClothingType(rawValue: sender.tag)
                  {
                  confirmClothingType(type: matchingType)
                  }
                  }





                  share|improve this answer















                  By doing so, you are violating the philosophy of MVC and the point of using enum. You should use the enum, which is a much simpler data object, for all the underlying operations, and only render the image when displaying, and never read the image back since you should already know its underlying enum value on behalf of the image.



                  I would set the tag attribute for the UIButton and make the enum inherit Int. Let say you have 3 UIButton, then set their tags to 0,1,2(or their clothingType.rawValue programatically) respectively. You can then retrieve the enum with the following implementation:



                  enum ClothingType: Int {
                  case head = 0
                  case body = 1
                  case pants = 2

                  var imageForClothingType: UIImage {
                  switch self {
                  case .head: return #imageLiteral(resourceName: "hatsicon")
                  case .body: return #imageLiteral(resourceName: "bodyicon")
                  case .pants: return #imageLiteral(resourceName: "pantsicon")
                  }
                  }
                  }

                  @IBAction func chooseClothingType (_ sender: UIButton) {

                  if let matchingType: ClothingType = ClothingType(rawValue: sender.tag)
                  {
                  confirmClothingType(type: matchingType)
                  }
                  }






                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Nov 21 '18 at 4:20

























                  answered Nov 21 '18 at 4:14









                  Ricky MoRicky Mo

                  1,5171211




                  1,5171211

























                      0














                      I would subclass UIButton and create a property to set the ClothingType.



                      class ClothingButton: UIButton {
                      var type: ClothingType? {
                      didSet {
                      setImage(type?.imageForClothingType, for: .normal)
                      }
                      }
                      }

                      class ClothingViewController: UIViewController {
                      @IBAction func chooseClothingType (_ sender: ClothingButton) {
                      print(sender.type.debugDescription)
                      }
                      }





                      share|improve this answer




























                        0














                        I would subclass UIButton and create a property to set the ClothingType.



                        class ClothingButton: UIButton {
                        var type: ClothingType? {
                        didSet {
                        setImage(type?.imageForClothingType, for: .normal)
                        }
                        }
                        }

                        class ClothingViewController: UIViewController {
                        @IBAction func chooseClothingType (_ sender: ClothingButton) {
                        print(sender.type.debugDescription)
                        }
                        }





                        share|improve this answer


























                          0












                          0








                          0







                          I would subclass UIButton and create a property to set the ClothingType.



                          class ClothingButton: UIButton {
                          var type: ClothingType? {
                          didSet {
                          setImage(type?.imageForClothingType, for: .normal)
                          }
                          }
                          }

                          class ClothingViewController: UIViewController {
                          @IBAction func chooseClothingType (_ sender: ClothingButton) {
                          print(sender.type.debugDescription)
                          }
                          }





                          share|improve this answer













                          I would subclass UIButton and create a property to set the ClothingType.



                          class ClothingButton: UIButton {
                          var type: ClothingType? {
                          didSet {
                          setImage(type?.imageForClothingType, for: .normal)
                          }
                          }
                          }

                          class ClothingViewController: UIViewController {
                          @IBAction func chooseClothingType (_ sender: ClothingButton) {
                          print(sender.type.debugDescription)
                          }
                          }






                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Nov 21 '18 at 4:20









                          CallamCallam

                          8,32821824




                          8,32821824






























                              draft saved

                              draft discarded




















































                              Thanks for contributing an answer to Stack Overflow!


                              • Please be sure to answer the question. Provide details and share your research!

                              But avoid



                              • Asking for help, clarification, or responding to other answers.

                              • Making statements based on opinion; back them up with references or personal experience.


                              To learn more, see our tips on writing great answers.




                              draft saved


                              draft discarded














                              StackExchange.ready(
                              function () {
                              StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53404587%2fget-enum-from-matching-associated-value%23new-answer', 'question_page');
                              }
                              );

                              Post as a guest















                              Required, but never shown





















































                              Required, but never shown














                              Required, but never shown












                              Required, but never shown







                              Required, but never shown

































                              Required, but never shown














                              Required, but never shown












                              Required, but never shown







                              Required, but never shown







                              Popular posts from this blog

                              Can a sorcerer learn a 5th-level spell early by creating spell slots using the Font of Magic feature?

                              Does disintegrating a polymorphed enemy still kill it after the 2018 errata?

                              A Topological Invariant for $pi_3(U(n))$