“Creating an image format with an unknown type is an error” with UIImagePickerController

Question

While choosing an image from the image picker in iOS 10 Swift 3 I am getting an error - Creating an image format with an unknown type is an error

Answer 1

According Abdurohman's answer, i change my code and solve the problem,thanks.

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
    let selectedImage = info[UIImagePickerControllerOriginalImage] as! UIImage

    photoImageView.image = selectedImage

    // Dismiss the picker.
    dismiss(animated: true, completion: nil)
}

Answer 2

Add "_" in function parameters.

from

func imagePickerController(picker: UIImagePickerController ...

to

func imagePickerController(_ picker: UIImagePickerController ...

Answer 3

For Xcode 8.1 with swift 3, After changing the delegate method as below

change your

func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {

    imagePost.image = image
    self.dismiss(animated: true, completion: nil)
}

function to

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

    {


imagePost.image = info[UIImagePickerControllerOriginalImage] as? UIImage
 picker.dismiss(animated: true, completion: nil)

}

I forgot to add UINavigationControllerDelegate along with UIImagePickerControllerDelegate in

class ViewController:UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate

You would have added an variable at the beginning like

var imagePicker = UIImagePickerController()

and setting delegate and call a function in viewdidload() as

 imagePicker.delegate = self
 viwImagePick()

Then explain that function as

  //ImagePicker
    func viwImagePick(){


        let alert = UIAlertController(title: nil, message: "Choose your source", preferredStyle: UIAlertControllerStyle.alert)

        alert.addAction(UIAlertAction(title: "Camera", style: UIAlertActionStyle.default) { (result : UIAlertAction) -> Void in
            print("Camera selected")
            self.openCamera()

            //Code for Camera
            //cameraf
        })
        alert.addAction(UIAlertAction(title: "Photo library", style: UIAlertActionStyle.default) { (result : UIAlertAction) -> Void in
            print("Photo selected")
            self.openGallary()

            //Code for Photo library
            //photolibaryss
        })


        self.present(alert, animated: true, completion: nil)
           }



    func openCamera()
    {
        imagePicker.sourceType = UIImagePickerControllerSourceType.camera
        if UIDevice.current.userInterfaceIdiom == .phone
        {
            self.present(imagePicker, animated: true, completion: nil)
        }
        else
        {
            let popover = UIPopoverController(contentViewController: imagePicker)

            popover.present(from: profileImgViw.frame, in: self.view, permittedArrowDirections: UIPopoverArrowDirection.any, animated: true)

        }
    }

    func openGallary()
    {
        imagePicker.sourceType = UIImagePickerControllerSourceType.savedPhotosAlbum
        if UIDevice.current.userInterfaceIdiom == .phone
        {
            self.present(imagePicker, animated: true, completion: nil)
        }
        else
        {
           let popover = UIPopoverController(contentViewController: imagePicker)

            popover.present(from: profileImgViw.frame, in: self.view, permittedArrowDirections: UIPopoverArrowDirection.any, animated: true)


        }
    }

Now the image is added to image view from the library

Answer 4

If this helps anyone, I had this happen when I subclassed UIImageView to create a rounded view. It also happened when I added the below line in viewDidLoad()

imageView.layer.cornerRadius = self.imageView.frame.size.width / 2

I ended up adding the line in viewWillLayoutSubViews and it worked. See this for more details:

clipsToBounds causes UIImage to not display in iOS10 & XCode 8

Answer 5

If you allow editing of the picture imageController.allowsEditing = true then you will need to get the edited image first:

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
    picker.dismissViewControllerAnimated(true, completion: nil)

    if let image = info[UIImagePickerControllerEditedImage] as? UIImage {
        imagePost.image = image
    } else if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
        imagePost.image = image
    } else {
        imagePost.image = nil
    }
}

Answer 6

I think you are missing a connection between photoImageView and the image.

Take a look my screenshots below:

Good luck!