title: UIImagePickerController AllowsEditing not working
body: <p>I am using UIImagePickerController to allow the user to take a picture. I want to allow him/her to edit it afterwards but, whatever I do, I get nothing.</p>
  <p>Here is my code (I am using Xamarin):</p>
  <pre><code>UIImagePickerController imagePicker = new UIImagePickerController ();
                  // set our source to the camera
                  imagePicker.SourceType = UIImagePickerControllerSourceType.Camera;
                  // set what media types
                  //imagePicker.MediaTypes = UIImagePickerController.AvailableMediaTypes (UIImagePickerControllerSourceType.Camera);
                  // show the camera controls
                  imagePicker.ModalPresentationStyle = UIModalPresentationStyle.CurrentContext;
                  imagePicker.ShowsCameraControls = true;
                  imagePicker.AllowsEditing = true;
                  imagePicker.SetEditing (true,true);
                  imagePicker.PreferredContentSize = new SizeF(900,600);
                  imagePicker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Photo;
                  imagePicker.Title=&quot;taste.eat. image&quot;;
                  // attach the delegate
                  imagePicker.Delegate = new ImagePickerDelegate();
                  // show the picker
                  NavigationController.PresentViewController(imagePicker, true,null);
  </code></pre>
  <p>Am I missing something?</p>
  <p><strong>EDIT:</strong></p>
  <p>I have followed the tutorial and I am getting to the screen with the rectangle, but if i pan or zoom it just snaps back to the center once I lift my finger. Is it possible to get to this screen from the photos application?</p>
  <p><img src="https://i.stack.imgur.com/0xXvZ.jpg" alt="Image from the photos application" /></p>