startSmsRetriever.java

public void startSmsRetriever() {
    SmsRetrieverClient client =  SmsRetriever.getClient(getActivity());
    Task<Void> task = client.startSmsRetriever();
    
    task.addOnSuccessListener(aVoid -> {
        Timber.d("1 Started listening for SMS");

    });

    task.addOnFailureListener(e -> {
        Timber.d("2 Failed listening for SMS");
    });
}