How to fix the photo selector 'request access' - swift

Question

I am trying to add a photo selector request access. How can I trigger and present the image picker controller if access on request(first time) is granted first? Note: The .info file is already set and everything runs smooth...
I am working with an image view with these properties:
lazy var projectImageView: UIImageView = {
let imageView = UIImageView(image: #imageLiteral(resourceName: "select_photo_empty")) //Default Image View asking for photo...
imageView.translatesAutoresizingMaskIntoConstraints = false
imageView.isUserInteractionEnabled = true
imageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleSelectPhoto)))
return imageView
}()
At first hand I tried this... But the code doesn't run..
func checkStatus(){
let photoAuthorizationStatus = PHPhotoLibrary.authorizationStatus()
switch photoAuthorizationStatus {
case .authorized:
print("Access is granted by user")
case .notDetermined: PHPhotoLibrary.requestAuthorization({
(newStatus) in print("status is \(newStatus)")
if newStatus == PHAuthorizationStatus.authorized {
print("success")
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
imagePickerController.allowsEditing = true
self.present(imagePickerController, animated: true, completion: nil)
print("Trying to open photos")
}
})
case .restricted:
print("User do not have access to photo album.")
case .denied:
print("User has denied the permission.")
}
}
#objc func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
dismiss(animated: true, completion: nil)
}
#objc func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
// Local variable inserted by Swift 4.2 migrator.
let info = convertFromUIImagePickerControllerInfoKeyDictionary(info)
print(info)
if let editedImage = info[convertFromUIImagePickerControllerInfoKey(UIImagePickerController.InfoKey.editedImage)] as? UIImage {
projectImageView.image = editedImage
} else if let originalImage = info[convertFromUIImagePickerControllerInfoKey(UIImagePickerController.InfoKey.originalImage)] as? UIImage {
projectImageView.image = originalImage
}
setupCircularImageStyle()
dismiss(animated: true, completion: nil)
}
Here's the entire code with the required blocks:
func checkStatus(){
let photoAuthorizationStatus = PHPhotoLibrary.authorizationStatus()
switch photoAuthorizationStatus {
case .authorized:
print("Access is granted by user")
case .notDetermined: PHPhotoLibrary.requestAuthorization({
(newStatus) in print("status is \(newStatus)")
if newStatus == PHAuthorizationStatus.authorized {
print("success")
}
})
case .restricted:
print("User do not have access to photo album.")
case .denied:
print("User has denied the permission.")
}
}
#objc func handleSelectPhoto(){
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
imagePickerController.allowsEditing = true
self.present(imagePickerController, animated: true, completion: nil)
print("Trying to open photos")
}
#objc func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
dismiss(animated: true, completion: nil)
}
#objc func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
// Local variable inserted by Swift 4.2 migrator.
let info = convertFromUIImagePickerControllerInfoKeyDictionary(info)
print(info)
if let editedImage = info[convertFromUIImagePickerControllerInfoKey(UIImagePickerController.InfoKey.editedImage)] as? UIImage {
projectImageView.image = editedImage
} else if let originalImage = info[convertFromUIImagePickerControllerInfoKey(UIImagePickerController.InfoKey.originalImage)] as? UIImage {
projectImageView.image = originalImage
}
setupCircularImageStyle()
dismiss(animated: true, completion: nil)
}
Again, I would like to present the access request for the first time to the user, but having trouble setting the 'checkStatus' function...