parahall

Constraints constraints = new Constraints.Builder().setRequiredNetworkType
        (NetworkType.CONNECTED).build();
PeriodicWork locationWork = new PeriodicWork.Builder(LocationWork.class,
        FIVETEEN_MIN, TimeUnit.MILLISECONDS).addTag(LocationWork.TAG)
        .withConstraints(constraints).build();
WorkManager.getInstance(this).enqueue(locationWork);

parahall

WorkManager.getInstance(this)
        .beginWith(Work.from(LocationWork.class))
        .then(Work.from(LocationUploadWorker.class))
        .enqueue();

parahall

WorkManager.getInstance(this).enqueue(Work.from(LocationWork.class, 
        LocationUploadWorker.class));

parahall

@Override
public WorkerResult doWork() {
    ...
    LocalBroadcastManager.getInstance(getAppContext()).registerReceiver(receiver, new IntentFilter(LocationBaseBroadcast.ACTION_NEW_LOCATION_ARRIVED));
    locationTracker.start();
    try {
        locationWait = new CountDownLatch(1);
        locationWait.await();
    } catch (InterruptedException e) {

parahall

public class LocationUploadWorker extends Worker {
    ...
     //Upload last passed location to the server
    public WorkerResult doWork() {
        ServerReport serverReport = new ServerReport(getInputData().getDouble(LOCATION_LONG, 0),
                getInputData().getDouble(LOCATION_LAT, 0), getInputData().getLong(LOCATION_TIME,
                0));
        FirebaseDatabase database = FirebaseDatabase.getInstance();
        DatabaseReference myRef =
                database.getReference("WorkerReport v" + android.os.Build.VERSION.SDK_INT);

parahall

Constraints constraints = new Constraints.Builder().setRequiredNetworkType(NetworkType
            .CONNECTED).build();
Data inputData = new Data.Builder()
            .putDouble(LocationUploadWorker.LOCATION_LAT, location.getLatitude())
            .putDouble(LocationUploadWorker.LOCATION_LONG, location.getLongitude())
            .putLong(LocationUploadWorker.LOCATION_TIME, location.getTime())
            .build();
OneTimeWorkRequest uploadWork = new OneTimeWorkRequest.Builder(LocationUploadWorker.class)
            .setConstraints(constraints).setInputData(inputData).build();
WorkManager.getInstance().enqueue(uploadWork);

parahall

                WorkManager.getInstance().getStatusById(locationWork.getId()).observe(this,
                        workStatus -> {
                    if(workStatus!=null && workStatus.getState().isFinished()){
                        ...
                    }
                });

parahall

WorkManager.getInstance().getStatusById(locationWork.getId()).observe(this,
        workStatus -> {
    if(workStatus!=null && workStatus.getState().isFinished()){
         ...
    }
});

parahall

Constraints constraints = new Constraints.Builder().setRequiredNetworkType
        (NetworkType.CONNECTED).build();
PeriodicWorkRequest locationWork = new PeriodicWorkRequest.Builder(LocationWork
        .class, 15, TimeUnit.MINUTES).addTag(LocationWork.TAG)
        .setConstraints(constraints).build();
WorkManager.getInstance().enqueue(locationWork);

parahall

public class LocationWork extends Worker {

    ...

    public WorkerResult doWork() {
        Log.d(TAG, "doWork: Started to work");
        handlerThread = new HandlerThread("MyHandlerThread");
        handlerThread.start();
        looper = handlerThread.getLooper();
        locationTracker = new LocationTracker(getApplicationContext(), looper);