UIImagePickerController后退按钮/取消按钮不可见

Question

I show the phone's gallery with an UIImagePickerController, but there is no back/cancel button on it. How can I add one?

What I have (inside a UIViewController):

func openGallery() {
  let picker = UIImagePickerController()
  picker.allowsEditing = false
  picker.sourceType = .photoLibrary
  picker.mediaTypes =
    UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
  present(picker, animated: true, completion: nil)
}

When I run this, I get the gallery, however there is no cancel button at top where it usually is.

Answer 1

Implement UIImagePickerControllerDelegate , UINavigationControllerDelegate and create a variable to assign UIImagePickerController var imagePicker = UIImagePickerController() and set imagePicker.delegate = self .

func openGallary()
{
    imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary
    imagePicker.allowsEditing = true
    self.present(imagePicker, animated: true, completion: nil)
}