Accessing the camera and photo library in swift 4 - ios

Question

I'm trying to access both the camera and photo library in swift4 using the following code
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
let alert = UIAlertController(title: "", message: "", preferredStyle: .actionSheet)
alert.addAction(UIAlertAction(title: "Camera", style: .default, handler: {(action: UIAlertAction) in
imagePickerController.sourceType = .camera
print(1)
}))
alert.addAction(UIAlertAction(title: "Photo Album", style: .default, handler: {(action: UIAlertAction) in
imagePickerController.sourceType = .photoLibrary
}))
alert.addAction(UIAlertAction(title: "Cancel", style: .default, handler: nil))
self.present(alert, animated: true, completion: nil)
but it's not working. I'm not get an access authorization request even though I made sure that the plist has the camera and photo library authorization. I manipulate the code a bit to the following
AVCaptureDevice.requestAccess(for: AVMediaType.video) { response in
}
let photos = PHPhotoLibrary.authorizationStatus()
if photos == .notDetermined {
PHPhotoLibrary.requestAuthorization({status in
})
}
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
let alert = UIAlertController(title: "", message: "", preferredStyle: .actionSheet)
alert.addAction(UIAlertAction(title: "Camera", style: .default, handler: {(action: UIAlertAction) in
imagePickerController.sourceType = .camera
print(1)
}))
alert.addAction(UIAlertAction(title: "Photo Album", style: .default, handler: {(action: UIAlertAction) in
imagePickerController.sourceType = .photoLibrary
}))
alert.addAction(UIAlertAction(title: "Cancel", style: .default, handler: nil))
self.present(alert, animated: true, completion: nil)
Now I am getting the authorization request for both cameras and photo library and I can see the AlertView but when I press camera or Photo Album as shown in the picture nothing happens.
I tried on a device and simulator for the camera.

Answer 1

Here is the code to load image from photos & camera in iOS.
⁃ You need to create an outlet of your UIImageView
⁃ Then add a tap gesture on to image view
⁃ Then connect tap gesture with the didTapOnImageView function.
⁃ Then add the following extension to your view controller.
//MARK:- Image Picker
extension YourViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
//This is the tap gesture added on my UIImageView.
#IBAction func didTapOnImageView(sender: UITapGestureRecognizer) {
//call Alert function
self.showAlert()
}
//Show alert to selected the media source type.
private func showAlert() {
let alert = UIAlertController(title: "Image Selection", message: "From where you want to pick this image?", preferredStyle: .actionSheet)
alert.addAction(UIAlertAction(title: "Camera", style: .default, handler: {(action: UIAlertAction) in
self.getImage(fromSourceType: .camera)
}))
alert.addAction(UIAlertAction(title: "Photo Album", style: .default, handler: {(action: UIAlertAction) in
self.getImage(fromSourceType: .photoLibrary)
}))
alert.addAction(UIAlertAction(title: "Cancel", style: .destructive, handler: nil))
self.present(alert, animated: true, completion: nil)
}
//get image from source type
private func getImage(fromSourceType sourceType: UIImagePickerController.SourceType) {
//Check is source type available
if UIImagePickerController.isSourceTypeAvailable(sourceType) {
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
imagePickerController.sourceType = sourceType
self.present(imagePickerController, animated: true, completion: nil)
}
}
//MARK:- UIImagePickerViewDelegate.
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
self.dismiss(animated: true) { [weak self] in
guard let image = info[UIImagePickerController.InfoKey.originalImage] as? UIImage else { return }
//Setting image to your image view
self?.profileImgView.image = image
}
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion: nil)
}
}
Note: Don't forget to add the privacy settings in info.plist
Privacy - Camera Usage Description
Privacy - Photo Library Usage Description

Answer 2

First of all, you need to import these libraries:
import Photos
import UIKit
#IBOutlet weak var loadPhoto: UIButton!
And you need setup delegates:
class YourClass: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate, UNUserNotificationCenterDelegate
func displayUploadImageDialog(btnSelected: UIButton) {
let picker = UIImagePickerController()
picker.delegate = self
picker.allowsEditing = true
let alertController = UIAlertController(title: "", message: "Upload profile photo?".localized(), preferredStyle: .actionSheet)
let cancelAction = UIAlertAction(title: NSLocalizedString("Cancel", comment: "Cancel action"), style: .cancel, handler: {(_ action: UIAlertAction) -> Void in
alertController.dismiss(animated: true) {() -> Void in }
})
alertController.addAction(cancelAction)
let cameraRollAction = UIAlertAction(title: NSLocalizedString("Open library".localized(), comment: "Open library action"), style: .default, handler: {(_ action: UIAlertAction) -> Void in
if UI_USER_INTERFACE_IDIOM() == .pad {
OperationQueue.main.addOperation({() -> Void in
picker.sourceType = .photoLibrary
self.present(picker, animated: true) {() -> Void in }
})
}
else {
picker.sourceType = .photoLibrary
self.present(picker, animated: true) {() -> Void in }
}
})
alertController.addAction(cameraRollAction)
alertController.view.tintColor = .black
present(alertController, animated: true) {() -> Void in }
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
profileImage.image = image
let imageData = UIImageJPEGRepresentation(image, 0.05)
self.dismiss(animated: true, completion: nil)
}
func checkPermission() {
let authStatus = AVCaptureDevice.authorizationStatus(for: AVMediaType.video)
switch authStatus {
case .authorized:
self.displayUploadImageDialog(btnSelected: self.loadPhoto)
case .denied:
print("Error")
default:
break
}
}
func imagePickerControllerDidCancel(picker: UIImagePickerController) {
self.dismiss(animated: true, completion: nil)
}
func checkLibrary() {
let photos = PHPhotoLibrary.authorizationStatus()
if photos == .authorized {
switch photos {
case .authorized:
self.displayUploadImageDialog(btnSelected: self.loadPhoto)
case .denied:
print("Error")
default:
break
}
}
}
Setup action for button:
#IBAction func loadPhotoTapped(_ sender: UIButton) {
let photos = PHPhotoLibrary.authorizationStatus()
if photos == .notDetermined {
PHPhotoLibrary.requestAuthorization({status in
if status == .authorized{
print("OKAY")
} else {
print("NOTOKAY")
}
})
}
checkLibrary()
checkPermission()
}
At the Info.plist setup the permissions:
Privacy - Media Library Usage Description
Privacy - Photo Library Usage Description
Privacy - Camera Usage Description
This should work.