Swift 3 - Cannot override 'imagePickerController' - xcode

Question

My code:
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {
self.image = image
self.imageStatusLabel.text = "There is a picture"
self.imageStatusLabel.textColor = UIColor.blue()
picker.dismiss(animated: true, completion: nil)
}
And this is the error:
Cannot override 'imagePickerController' which has been marked unavailable: APIs deprecated as of iOS 7 and earlier are unavailable in Swift
Well, I've tried to use the newer function:
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
// But no image in the parameters
}
But then, there is no image in the parameters and I can get the image.
What should I do?

Answer 1

You have to use the info parameter and make a cast to UIImage. Don't forget that you have to put a "Privacy - Photo Library Usage Description" and a "Privacy - Camera Usage Description" in the info.plist file and fill the values with a string explaining the reason for request the access to photo library and camera.
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage {
pictureImageView.contentMode = .scaleToFill
pictureImageView.image = pickedImage
}
picker.dismiss(animated: true, completion: nil)
}

Answer 2

To use imagePickerController in Swift3 you need add a row with key: Privacy - Photo Library Usage Description and value is a string (e.g: "Access to your photos") to Info.plist file and let's try below:
class YourController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
let imagePickerButton: UIButton = {
let btn = UIButton(frame: CGRect(x: 10, y: 10, width: 100, height: 100))
btn.setTitle("Choose a Photo", for: .normal)
btn.setTitleColor(.white, for: .normal)
btn.backgroundColor = .blue
btn.addTarget(self, action: #selector(handlePickerDidTap), for: .touchUpInside)
return btn
}()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(imagePickerButton)
}
func handlePickerDidTap() {
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
imagePickerController.allowsEditing = true
present(imagePickerController, animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
print("photo is selected")
// do some thing here
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
dismiss(animated: true, completion: nil)
}
}
Hope it help!

Answer 3

You get the image from the passed info dictionary, see the keys in the documentation
You probably want either
let image = info[UIImagePickerControllerOriginalImage] as? UIImage
or
let image = info[UIImagePickerControllerEditedImage] as? UIImage

Answer 4

import UIKit
import Photos
class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
#IBOutlet weak var imageView: UIImageView!
#IBAction func selectPhotoLibrary(_ sender: Any) {
let picker = UIImagePickerController()
picker.delegate = self
if UIImagePickerController.isSourceTypeAvailable(.camera) {
picker.sourceType = .camera
} else{
print("Kamera desteklenmiyor.")
}
present(picker, animated: true, completion:nil)
}
#IBAction func selectPhotoCamera(_ sender: Any) {
let picker = UIImagePickerController()
picker.delegate = self
picker.sourceType = .photoLibrary
present(picker, animated: true, completion:nil)
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
picker.dismiss(animated: true, completion:nil)
guard let image = info[UIImagePickerControllerOriginalImage] as? UIImage else { return }
guard let imageData = UIImageJPEGRepresentation(image, 0.8) else { return }
self.imageView.image = image
print(imageData)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
picker.dismiss(animated: true, completion:nil)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
Read more for usage detail --> https://medium.com/#yakupad/swift-uiimagepickercontroller-kullanımı-91771ed4c1d6