// When "edit" menu item is clicked
 private void editFeature(Popup popup) {
   ArcGISFeatureLayer featureLayer = getFeatureLayer(popup);
   mEditListener.onEdit(featureLayer, popup);
 }
 // When "save" menu item is clicked
 private void saveFeature(Popup popup) {
   ArcGISFeatureLayer featureLayer = getFeatureLayer(popup);
   mEditListener.onSave(featureLayer, popup);
 }
 // When "delete" menu item is clicked
 private void deleteFeature(Popup popup) {
   ArcGISFeatureLayer featureLayer = getFeatureLayer(popup);
   mEditListener.onDelete(featureLayer, popup);
 }