FireBase作业调度程序未调度

我看了好几个答案,但什么也找不到。有人知道我的FireBaseDispatcher为什么不执行吗?我在1到5秒之间设置了一个触发窗口,看看它是否工作。 我的应用程序启动,并从实用程序类调用此方法:

private static void scheduleFirebaseJobSync(@NonNull final Context context){

    try {
        com.firebase.jobdispatcher.Driver driver = new GooglePlayDriver(context);
        FirebaseJobDispatcher firebaseJobDispatcher = new FirebaseJobDispatcher(driver);

        Job syncJob = firebaseJobDispatcher.newJobBuilder()
                .setService(FireBaseJobService.class)
                .setTag(WEATHER_SYNC_TAG)
                .setConstraints(Constraint.ON_ANY_NETWORK)
                .setLifetime(Lifetime.FOREVER)
                .setRecurring(true)
                .setTrigger(Trigger.executionWindow(1,5))
                .setReplaceCurrent(true)
                .build();
        firebaseJobDispatcher.schedule(syncJob);
    }

下面是FireBaseJobService类,它被称为:

public class FireBaseJobService extends JobService {
private AsyncTask<Void,Void,Void> fetchMovieDate;

@Override
public boolean onStartJob(final JobParameters job) {
    fetchMovieDate = new AsyncTask<Void, Void, Void>() {
        @Override
        protected Void doInBackground(Void... params) {

            Context context = getApplicationContext();
            WeatherSyncTask.syncWeatherDB(context);
            jobFinished(job,false);
            Log.d("FIREBASEJOB", "IN FIRE BASE JOB FINISHED");
            return null;
        }
        @Override
        protected void onPostExecute(Void aVoid) {
            jobFinished(job,false);
        }
    };
    fetchMovieDate.execute();
    return true;
}

@Override
public boolean onStopJob(JobParameters job) {
    if (fetchMovieDate!=null){
        fetchMovieDate.cancel(true);
    }

    return true;
}}