ImageView won't update with new image

Question

I am trying to select an image from the user's phone and update an image view with said image.

The problem I am having is that it won't update the image. It does get there as I added a breakpoint and it hit the breakpoint, and the image view can change image as I manually tried changing it elsewhere.

But it refuses to work when I need it.

My image view:

    lazy var profilePictureImageView: UIImageView = {
        let imageView = UIImageView()
        imageView.image = UIImage(named: "DefaultUser")
        imageView.translatesAutoresizingMaskIntoConstraints = false
        imageView.contentMode = .scaleAspectFill

        imageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleSelectProfilePicture)))
        imageView.isUserInteractionEnabled = true
        return imageView
    }()

The code to update the image via picking a photo on the device:

import UIKit

extension ProfileVC: UIImagePickerControllerDelegate, UINavigationControllerDelegate {

    func handleSelectProfilePicture() {
        let picker = UIImagePickerController()
        picker.delegate = self
        picker.allowsEditing = true
        present(picker, animated: true, completion: nil)
    }

    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 {
             profilePictureImageView.image = selectedImage
        }
        dismiss(animated: true, completion: nil)
    }

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

[EDIT] One thing I have discovered is if I try it on a different VC with a different image view it works as intended. The only main difference I can see between the two VC's is the one I want it to work on but won't also extends 'UIPickerViewDelegate' and 'UIPickerViewDataSource'. Could there be conflict?

Answer 1

Try to set modalPresentationStyle tooverCurrentContext Like the sample below

 let myPickerController = UIImagePickerController()
    myPickerController.delegate = self
    myPickerController.sourceType =  UIImagePickerControllerSourceType.photoLibrary
    **myPickerController.modalPresentationStyle = .overCurrentContext**
    myPickerController.delegate = self
    present(myPickerController, animated: true, completion: nil)

Answer 2

Try this, it worked for me:

DispatchQueue.main.async {
    profilePictureImageView.image = croppedImage
    profilePictureImageView.setNeedsDisplay()
}

Essentially you need to specify that you want to update the image via

profilePictureImageView.setNeedsDisplay()