Having trouble converting a simple Objective-C block to Swift





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Not sure what I'm doing wrong. I'm using this module https://github.com/wenzhaot/InstagramPhotoPicker (the header file for the block is here https://github.com/wenzhaot/InstagramPhotoPicker/blob/master/TWPhotoPicker/TWPhotoPickerController.h)



In Objective-C, the syntax is:



photoPicker.cropBlock = ^(UIImage *image) {
//do something
};


I tried converting it to swift, but I'm getting an error



photoPicker.cropBlock{ (image:UIImage) -> () in
//Do something
//error: cannot invoke 'cropBlock' with an argument list of type '((UIImage) -> ())'
}


How to get it to work?










share|improve this question































    1















    Not sure what I'm doing wrong. I'm using this module https://github.com/wenzhaot/InstagramPhotoPicker (the header file for the block is here https://github.com/wenzhaot/InstagramPhotoPicker/blob/master/TWPhotoPicker/TWPhotoPickerController.h)



    In Objective-C, the syntax is:



    photoPicker.cropBlock = ^(UIImage *image) {
    //do something
    };


    I tried converting it to swift, but I'm getting an error



    photoPicker.cropBlock{ (image:UIImage) -> () in
    //Do something
    //error: cannot invoke 'cropBlock' with an argument list of type '((UIImage) -> ())'
    }


    How to get it to work?










    share|improve this question



























      1












      1








      1








      Not sure what I'm doing wrong. I'm using this module https://github.com/wenzhaot/InstagramPhotoPicker (the header file for the block is here https://github.com/wenzhaot/InstagramPhotoPicker/blob/master/TWPhotoPicker/TWPhotoPickerController.h)



      In Objective-C, the syntax is:



      photoPicker.cropBlock = ^(UIImage *image) {
      //do something
      };


      I tried converting it to swift, but I'm getting an error



      photoPicker.cropBlock{ (image:UIImage) -> () in
      //Do something
      //error: cannot invoke 'cropBlock' with an argument list of type '((UIImage) -> ())'
      }


      How to get it to work?










      share|improve this question
















      Not sure what I'm doing wrong. I'm using this module https://github.com/wenzhaot/InstagramPhotoPicker (the header file for the block is here https://github.com/wenzhaot/InstagramPhotoPicker/blob/master/TWPhotoPicker/TWPhotoPickerController.h)



      In Objective-C, the syntax is:



      photoPicker.cropBlock = ^(UIImage *image) {
      //do something
      };


      I tried converting it to swift, but I'm getting an error



      photoPicker.cropBlock{ (image:UIImage) -> () in
      //Do something
      //error: cannot invoke 'cropBlock' with an argument list of type '((UIImage) -> ())'
      }


      How to get it to work?







      objective-c swift






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 3 at 8:25









      Martijn Pieters

      726k14325492349




      726k14325492349










      asked Jul 2 '15 at 22:11









      Mike JonasMike Jonas

      2231310




      2231310
























          1 Answer
          1






          active

          oldest

          votes


















          2














          You're just missing = sign. Also image is implicitly unwrapped optional:



          photoPicker.cropBlock = { (image: UIImage!) -> () in
          //Do something
          }


          or



          photoPicker.cropBlock = { image in
          //Do something
          }





          share|improve this answer


























          • still same error :-/ i.imgur.com/5hHUgSC.png

            – Mike Jonas
            Jul 2 '15 at 22:20











          • Also the UIImage is implicitly unwrapped optional. Notice the ! in your error message. See my revised answer.

            – Rob
            Jul 2 '15 at 22:22













          • Oh, that fixed it. Thanks!!!!

            – Mike Jonas
            Jul 3 '15 at 4:37












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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          2














          You're just missing = sign. Also image is implicitly unwrapped optional:



          photoPicker.cropBlock = { (image: UIImage!) -> () in
          //Do something
          }


          or



          photoPicker.cropBlock = { image in
          //Do something
          }





          share|improve this answer


























          • still same error :-/ i.imgur.com/5hHUgSC.png

            – Mike Jonas
            Jul 2 '15 at 22:20











          • Also the UIImage is implicitly unwrapped optional. Notice the ! in your error message. See my revised answer.

            – Rob
            Jul 2 '15 at 22:22













          • Oh, that fixed it. Thanks!!!!

            – Mike Jonas
            Jul 3 '15 at 4:37
















          2














          You're just missing = sign. Also image is implicitly unwrapped optional:



          photoPicker.cropBlock = { (image: UIImage!) -> () in
          //Do something
          }


          or



          photoPicker.cropBlock = { image in
          //Do something
          }





          share|improve this answer


























          • still same error :-/ i.imgur.com/5hHUgSC.png

            – Mike Jonas
            Jul 2 '15 at 22:20











          • Also the UIImage is implicitly unwrapped optional. Notice the ! in your error message. See my revised answer.

            – Rob
            Jul 2 '15 at 22:22













          • Oh, that fixed it. Thanks!!!!

            – Mike Jonas
            Jul 3 '15 at 4:37














          2












          2








          2







          You're just missing = sign. Also image is implicitly unwrapped optional:



          photoPicker.cropBlock = { (image: UIImage!) -> () in
          //Do something
          }


          or



          photoPicker.cropBlock = { image in
          //Do something
          }





          share|improve this answer















          You're just missing = sign. Also image is implicitly unwrapped optional:



          photoPicker.cropBlock = { (image: UIImage!) -> () in
          //Do something
          }


          or



          photoPicker.cropBlock = { image in
          //Do something
          }






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Jul 2 '15 at 22:20

























          answered Jul 2 '15 at 22:15









          RobRob

          307k51579748




          307k51579748













          • still same error :-/ i.imgur.com/5hHUgSC.png

            – Mike Jonas
            Jul 2 '15 at 22:20











          • Also the UIImage is implicitly unwrapped optional. Notice the ! in your error message. See my revised answer.

            – Rob
            Jul 2 '15 at 22:22













          • Oh, that fixed it. Thanks!!!!

            – Mike Jonas
            Jul 3 '15 at 4:37



















          • still same error :-/ i.imgur.com/5hHUgSC.png

            – Mike Jonas
            Jul 2 '15 at 22:20











          • Also the UIImage is implicitly unwrapped optional. Notice the ! in your error message. See my revised answer.

            – Rob
            Jul 2 '15 at 22:22













          • Oh, that fixed it. Thanks!!!!

            – Mike Jonas
            Jul 3 '15 at 4:37

















          still same error :-/ i.imgur.com/5hHUgSC.png

          – Mike Jonas
          Jul 2 '15 at 22:20





          still same error :-/ i.imgur.com/5hHUgSC.png

          – Mike Jonas
          Jul 2 '15 at 22:20













          Also the UIImage is implicitly unwrapped optional. Notice the ! in your error message. See my revised answer.

          – Rob
          Jul 2 '15 at 22:22







          Also the UIImage is implicitly unwrapped optional. Notice the ! in your error message. See my revised answer.

          – Rob
          Jul 2 '15 at 22:22















          Oh, that fixed it. Thanks!!!!

          – Mike Jonas
          Jul 3 '15 at 4:37





          Oh, that fixed it. Thanks!!!!

          – Mike Jonas
          Jul 3 '15 at 4:37




















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