ios Camera app swift 3 - ios

Question

I want a camera interface in my app with capture and save image capabilities but i'm not able to get anything when i run this app, build is successful without any errors but nothing is showing on the viewController.
class ViewController: UIViewController , UINavigationControllerDelegate, UIImagePickerControllerDelegate{
#IBOutlet var imageView: UIImageView!
#IBOutlet var TakePhoto: UIButton!
var imagePick: UIImagePickerController!
var newMedia: Bool?
#IBAction func TakePhoto(_ sender: AnyObject){
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera){
let imagePick = UIImagePickerController()
imagePick.delegate = self
imagePick.sourceType = UIImagePickerControllerSourceType.camera
imagePick.mediaTypes = [kUTTypeImage as String]
imagePick.allowsEditing = false
self.present(imagePick, animated: true, completion: nil)
newMedia = true
}
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let mediaType = info[UIImagePickerControllerMediaType] as! NSString
if mediaType.isEqual(to: kUTTypeImage as String){
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
imageView.image = image
if(newMedia == true){
UIImageWriteToSavedPhotosAlbum(image, self, #selector(ViewController.image(image:didFinishSavingWithError:contextInfo:)), nil)
} //else if mediaType.isEqual(to: kUTTypeMovie as String)
self.dismiss(animated: true, completion: nil)
}
}
func image(image: UIImage, didFinishSavingWithError error: NSErrorPointer, contextInfo:UnsafeRawPointer){
if error != nil{
let alert = UIAlertController(title: "Save Failed", message: "Failed to save the image", preferredStyle: UIAlertControllerStyle.alert)
let cancelAction = UIAlertAction(title: "OK", style: .cancel, handler: nil)
alert.addAction(cancelAction)
self.present(alert, animated: true, completion: nil)
}
}
}

Answer 1

Have you set the permission to use camera in info.plist?
I mean to put the key Privacy - Camera Usage Description, type String with a description why are you using it