/* * Add Dialog */ private void OpenAddDialog() { var transaction = SupportFragmentManager.BeginTransaction(); var old = SupportFragmentManager.FindFragmentByTag("add_dialog"); if (old != null) { transaction.Remove(old); } transaction.AddToBackStack(null); _addDialog = new AddAuthenticatorDialog(AddDialogPositive, AddDialogNegative); _addDialog.Show(transaction, "add_dialog"); }