Work Request

WorkRequest.java

//we set a tag to be able to cancel all work of this type if needed
public static final String workTag = "notificationWork";

//store DBEventID to pass it to the PendingIntent and open the appropriate event page on notification click
Data inputData = new Data.Builder().putInt(DBEventIDTag, DBEventID).build();
// we then retrieve it inside the NotifyWorker with:
// final int DBEventID = getInputData().getInt(DBEventIDTag, ERROR_VALUE);

OneTimeWorkRequest notificationWork = new OneTimeWorkRequest.Builder(NotifyWorker.class)
  .setInitialDelay(calculateDelay(event.getDate()), TimeUnit.MILLISECONDS)
  .setInputData(inputData)
  .addTag(workTag)
  .build();