Merge pull request #46 from craigkj312/master

Fixing CoreML Vision Simple crash on iPad when opening action sheet.

Author: Christian Compton

Core ML Vision Simple/Core ML Vision Simple/ImageClassificationViewController.swift

@@ -109,6 +109,12 @@ class ImageClassificationViewController: UIViewController {
         photoSourcePicker.addAction(takePhoto)
         photoSourcePicker.addAction(choosePhoto)
         photoSourcePicker.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
+        
+        if let popoverController = photoSourcePicker.popoverPresentationController {
+            popoverController.sourceView = self.view
+            popoverController.sourceRect = CGRect(x: self.view.bounds.midX, y: self.view.bounds.midY, width: 0, height: 0)
+            popoverController.permittedArrowDirections = []
+        }
 
         present(photoSourcePicker, animated: true)
     }