Picker Error Message on Exit (encountered while discovering extensions: Error Domain=PlugInKit Code=13) With Swift 4 - Xcode 9

Question

Similar to

PhotoPicker discovery error: Error Domain=PlugInKit Code=13

and also to

https://forums.developer.apple.com/thread/82105

BUT I have t

Answer 1

Make sure you declare that your class implements UINavigationControllerDelegate.

extension MyViewController: UINavigationControllerDelegate {}

For some reason in Xcode 9.0 it warned me to declare the delegate as such:

imagePicker.delegate = self as? UIImagePickerControllerDelegate & UINavigationControllerDelegate

Answer 2

The user asks: "*Any suggestions how to stop the error message? Other than the list of things offered at the other two links (summarized above)".

I used two steps to eliminate the error message. Kudos to the person above Antoine Richeux https://stackoverflow.com/users/5767821/antoine-richeux.
I think the Privacy addition to pList may not be necessary, at least in my case

STEP 1. From the Menu bar select: Product > Scheme > Edit Scheme > select Run from the left side list of Build, Run ... Archive Select Arguments from top set of selections on right side - see picture attached. Use the + button under Environment Variables to add a new entry Name: OS_ACTIVITY_MODE Value: disable

This shows where to add the environment variable

STEP 2. Clean the project and rebuild

Answer 3

I had the same issue and tried every solution I could find, but nothing helped. Just asked myself what could happen to the delegate to not being triggered: deallocation of the delegate!

And that was it in my case! When presenting the UIImagePickerController my instance of class ImagePickerController : NSObject, UIImagePickerControllerDelegate, UINavigationControllerDelegate which isn't the presenting view controller, will be deallocated directly. Of course the delegate functions can't be executed anymore.

Just put a breakpoint in deinit (or dealloc in Objective-C world) and see if your delegate is being deallocated.

Answer 4

var messageImage = UIImage()

    @objc func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        self.dismiss(animated: true, completion: { () -> Void in

        })
        if let image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage
        {
            messageImage = image

        }
        print("Image Captured")
    }

You need to fetch UIImagePickerController.InfoKey.originalImage not UIImagePickerController.InfoKey.editedImage

Answer 5

It is because your app uses photo library (in this case, using UIImagePickerController) without asking for user permission. As an example, if I want to show the image picker when the add button was tapped:

@IBAction func addButtonTapped(_ sender: UIBarButtonItem) {
    checkPermission {
        let picker = UIImagePickerController()
        picker.sourceType = .photoLibrary
        picker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!

        picker.delegate = self
        picker.allowsEditing = false
        self.present(picker, animated: true, completion: nil)
    }
}

func checkPermission(hanler: @escaping () -> Void) {
    let photoAuthorizationStatus = PHPhotoLibrary.authorizationStatus()
    switch photoAuthorizationStatus {
    case .authorized:
        // Access is already granted by user
        hanler()
    case .notDetermined:
        PHPhotoLibrary.requestAuthorization { (newStatus) in
            if newStatus == PHAuthorizationStatus.authorized {
                // Access is granted by user
                hanler()
            }
        }
    default:
        print("Error: no access to photo album.")
    }
}

In addition, need to add this to your plist as well:

<key>NSPhotoLibraryUsageDescription</key>
<string>So that you can add images for your cloth. </string>

which is the message displayed in the permission dialog.

Answer 6

Can you try it out ?

extension YourProfileViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {

    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        dismiss(animated: true, completion: nil)
    }

    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        log.debug("Called imagePickerController function ")
        let image = info[UIImagePickerControllerOriginalImage] as? UIImage
        self.dismiss(animated: true) {
            self.yourProfileImageView.image = image
        }
    }
}