My segue is not executed after taking a pic - ios

Question

I'm developing an app which uses a camera and then the photo is supposed to be sent to another ViewController, but i'm not sure if it maybe the segue is not be able to there or that it is just be executed, but when I confirm the photo my app crashed and no errors are showed on my log.
This is the camera View controller
import UIKit
import AVFoundation
class ViewController: UIViewController ,
UIImagePickerControllerDelegate, UINavigationControllerDelegate{
var img = UIImageView()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
#IBAction func photo(_ sender: Any) {
checkCameraPermissions()
}
private func checkCameraPermissions() {
let status = AVCaptureDevice.authorizationStatus(for: .video)
switch status {
case .authorized:
print("1")
presentPicker()
case .notDetermined:
print("2")
askPermision()
case .denied:
print("3")
// user denied access
self.permissionDenied()
case .restricted:
print("Error restricted")
}
}
private func presentPicker() {
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.camera) {
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = UIImagePickerController.SourceType.camera
imagePicker.allowsEditing = false
self.present(imagePicker, animated: true, completion: nil)
}
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if let pickedImage = info[UIImagePickerController.InfoKey.originalImage] as? UIImage{
img.image = pickedImage
}
performSegue(withIdentifier: "captured", sender: nil)
}
private func askPermision(){
AVCaptureDevice.requestAccess(for: AVMediaType.video) {granted in
if granted {
self.presentPicker()
} else {
print("Denied")
}
}
}
private func permissionDenied() {
let alert = UIAlertController(title: "Access to camera is denied", message: "You have denied the access to the camera. Would you like to able it?", preferredStyle: .alert)
let actionOK = UIAlertAction(title: "Ok", style: .default) { (UIAlertAction) in
self.askPermision()
}
let cancel = UIAlertAction(title: "Cancel", style: .default) { (action) in
print("Cancel")
}
alert.addAction(actionOK)
alert.addAction(cancel)
present(alert, animated : true, completion: nil)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if(segue.identifier == "captured"){
let vc = segue.destination as! ImageReportedVC
vc.imgAux = img.image!
}
}
}
And then, this is the 2nd VC which doesn't appear. I believe the segue shouldn't be done there or something, but if you put it in another part of the code, it is executed before taking the photo.
import UIKit
class ImageReportedVC: UIViewController {
var imgAux = UIImage()
#IBOutlet weak var imgReported: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
imgReported.image = imgAux
// Do any additional setup after loading the view.
}
}
Thanks

Answer 1

You need to dismiss the picker
picker.dismiss(animated:true) {
self.performSegue(withIdentifier: "captured", sender: nil)
}