private static void ShowInternal(Activity activity, View snackbarHolderView, object content, float duration, ToastImpl toast)
 {
     Snackbar snackbar = null;
     var selector = activity.GetBindingMemberValue(AttachedMembersDesign.Activity.SnackbarTemplateSelector);
     if (selector != null)
         snackbar = (Snackbar) selector.SelectTemplate(content, snackbarHolderView);
     if (snackbar == null)
         snackbar = Snackbar.Make(snackbarHolderView, content.ToStringSafe("(null)"), (int) duration);
     toast.Show(snackbar, duration);
 }