Unable to tap on Choose or Cancel Image selection in UIImagePickerController - ios

Question

I can't choose an image in UIImagePickerController. When I press on choose button my picker is not interactive anymore. I can only dismiss it. Here is what im getting in error log
UpdatedWebantGallery[75511:6760388] [xpc.exceptions] <NSXPCConnection: 0x6000025c2d00> connection on anonymousListener or serviceListener from pid 75514: Warning: Exception caught during invocation of selector didSelectMediaWithInfoDictionary:, dropping incoming message and invalidating the connection.
Exception: *** -[NSURL URLByAppendingPathExtension:]: component, components, or pathExtension cannot be nil.
*** -[NSURL URLByAppendingPathExtension:]: component, components, or pathExtension cannot be nil.
And Here is my code of ViewController
class AddPhotoSceneViewController: UIViewController {
internal var presenter: AddPhotoScenePresenter!
#IBOutlet weak var imageView: UIImageView!
let picker = UIImagePickerController()
let tapGestureRecgonizer = UITapGestureRecognizer()
let actionSheet = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
override func viewDidLoad() {
super.viewDidLoad()
tapGestureRecgonizer.addTarget(self, action: #selector(showAlertSheet))
imageView.addGestureRecognizer(tapGestureRecgonizer)
setupAlert()
self.setLeftNavBarCancelButtonView(target: self, selector: #selector(self.returnToGalleryScreenTab))
}
func setupAlert() {
let uploadFromCameraAction = UIAlertAction(title: "Upload photo from camera", style: .default) { (action) in
self.picker.sourceType = .camera
AVCaptureDevice.requestAccess(for: AVMediaType.video) { response in
if response {
//access granted
} else {
}
}
self.invokePicker()
}
let uploadFromGalleryAction = UIAlertAction(title: "Upload photo from gallery", style: .default) { (action) in
self.picker.sourceType = .photoLibrary
switch PHPhotoLibrary.authorizationStatus(){
case .authorized:
self.invokePicker()
case .denied:
let modalView = ModalPopUpViewController(title: "Access Denied",
text: "If you want to upload your own photo we need your access to open gallery",
buttontext: "Open Settings",
action: #selector(self.openSettings),
target: self)
self.present(modalView, animated: true, completion: nil)
default:
return
}
}
let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) { (action) in
return
}
self.actionSheet.addAction(uploadFromCameraAction)
self.actionSheet.addAction(uploadFromGalleryAction)
self.actionSheet.addAction(cancelAction)
}
#objc func dismissModalView() {
self.dismiss(animated: true, completion: nil)
}
#objc func openSettings() {
self.dismiss(animated: true, completion: nil)
if let url = URL.init(string: UIApplication.openSettingsURLString) {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
}
}
#objc func showAlertSheet() {
self.present(self.actionSheet, animated: true) {
return
}
}
#objc func routeToAddPhotoForm() {
self.presenter?.routeToAddPhotoForm(image: self.imageView.image!)
}
#objc func returnToGalleryScreenTab() {
self.tabBarController?.selectedIndex = 0
}
func invokePicker() {
self.picker.allowsEditing = true
self.picker.delegate = self
self.present(self.picker, animated: true)
}
}
extension AddPhotoSceneViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
guard let image = info[.editedImage] as? UIImage else { return }
let imageName = UUID().uuidString
let imagePath = getDocumentsDirectory().appendingPathComponent(imageName)
if let jpegData = image.jpegData(compressionQuality: 0.8) {
try? jpegData.write(to: imagePath)
}
self.imageView.image = image
self.setRightNavBarButtonView(title: "Next",target: self, selector: #selector(self.routeToAddPhotoForm))
dismiss(animated: true)
}
func getDocumentsDirectory() -> URL {
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
return paths[0]
}
}
I Have no idea why it can be happening.
Here is a screen where I'm getting stopped

Answer 1

Copy/pasting your implementation here -
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
guard let image = info[.editedImage] as? UIImage else {
// Add a print statement here to check whether we are returning from here
print("Could not find editedImage")
// if you are returning from here, then `dismiss` call at the end is not being executed
// hence your picker never gets dismissed
// try using info[.originalImage] in case you end up here
return
}
let imageName = UUID().uuidString
let imagePath = getDocumentsDirectory().appendingPathComponent(imageName)
if let jpegData = image.jpegData(compressionQuality: 0.8) {
try? jpegData.write(to: imagePath)
}
self.imageView.image = image
self.setRightNavBarButtonView(title: "Next",target: self, selector: #selector(self.routeToAddPhotoForm))
dismiss(animated: true)
}
When Cancel is pressed, UIImagePickerController.imagePickerControllerDidCancel(_:) is called.
Your delegate’s implementation of this method should dismiss the picker view by calling the dismissModalViewControllerAnimated: method of the parent view controller.
Implementation of this method is optional, but expected.
You should copy/paste following method to your code.
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true)
}