private void setPositiveButtonVisibility(boolean visibility) {
if (dialog != null) {
if (visibility) {
((AlertDialog) dialog)
.getButton(AlertDialog.BUTTON_POSITIVE)
.setTextColor(defaultTextColor);
((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE).setClickable(true);
} else {
((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(Color.GRAY);
((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE).setClickable(false);
}
}
}
