Android Workmanager

Question

I'm having trouble figuring out how to use Android's Workmanager. Essentially, I want to make a OneTime request with a time delay, determine success, then do some stuff. The Worker class does NOTHING.

What I'm expecting is a SUCCESS code to be returned after the time delay. That is, the sole purpose of my Workmanager code is to provide a delay.

I know there are many other ways to effect a delay but my understanding is that Android "protects" Workmanager Workers better than, say, AlarmManager.

Unfortunately, I can't make it happen.

Here's what I've done

1. Extended my activity to include LifecycleOwner

2. Added the required getLifeCycle method, as below

   @NonNull
   @Override
   public Lifecycle getLifecycle() {
       Log.d (TAG, "getLifecycle(): " + getLifecycle());
       return getLifecycle();
   }
   

3. Here's the Worker class

   public class makeAlarm extends Worker {
   
       public makeAlarm(
           @NonNull Context context,
           @NonNull WorkerParameters params) {
           super(context, params);
       }
   
       @Override
       public Result doWork() {
           // Do the work here--in this case, do nothing
   
           // Indicate whether the task finished successfully with the Result
           return Result.success();
      }
   }
   

4. And here's my action code

   // Create a OneTimeWorkRequest that delays "success" by the required time
   OneTimeWorkRequest makeAlarmWorkRequest = new OneTimeWorkRequest.Builder(makeAlarm.class)
           .setInitialDelay(120, TimeUnit.SECONDS)
           .build();
   WorkManager.getInstance(this).enqueue(makeAlarmWorkRequest);
   
   // The following stmt. shows what appears to be a valid id
   Log.d (TAG, "makeAlarmWorkRequest.getId(): " + makeAlarmWorkRequest.getId());
   
   WorkManager.getInstance(this).getWorkInfoByIdLiveData(makeAlarmWorkRequest.getId())
           .observe(myLifecycleOwner, new Observer<WorkInfo>() {
               @Override
               public void onChanged(@Nullable WorkInfo workInfo) {
                   if (workInfo != null && workInfo.getState() == WorkInfo.State.SUCCEEDED) {
   
                   // Some amazing work here...
   
                   }
               }
           });
   

I've tried a number of variations but haven't had success. The above code results in a stack overflow crash. Help!