     activityVC.completionWithItemsHandler = {
       (activity, success, items, error) in
       if (success) {
-        self.save() // The meme is saved only if the operation was succesful
+        self.save() // The meme is saved only if the activity view operation was succesful
       }
       self.dismissViewControllerAnimated(true, completion: nil)
     }
   }
   
+  // Dismiss the view if the user cancel the edition
   @IBAction func cancelEdition(sender: AnyObject) {
     dismissViewControllerAnimated(true, completion: nil)
   }
 
   // UIImagePickerControllerDelegate methods
   
+  // Sets the imagePickerView image, enables the shareButton and dismiss the view after media was picked
   func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) {
     if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
       imagePickerView.image = image

    dismissViewControllerAnimated(true, completion: nil)
  }

  func imagePickerControllerDidCancel(picker: UIImagePickerController) {
    dismissViewControllerAnimated(true, completion: nil)
  }
  
  func save() {
    var meme = Meme(topText: topTextField.text, bottomText: bottomTextField.text, originalImage: imagePickerView.image!, memedImage: generateMemedImage())
    

    appDelegate.memes.append(meme)
  }
  
  // Generates an image (memedImage) that is the original image with the text fields on top of it
  func generateMemedImage() -> UIImage {
    // Hide top and bottom toolbars
    topToolbar.hidden = true
