WorkManager OneTimeWorkRequest InitialDelay works after twise the time set

Question

I'm facing problem with WorkManager OneTimeWorkRequest setInitialDelay.

It's work fine when app is in forground or in recent list. But When I remove App from recent list everything is messed up.

What I want to achieve ? - I want send notification to user after few hours when some task is pending ,so after some R&D start work using WorkManager because of It's ability to Schedule Tasks without background service limitation.

Now below is code snippet which work till app is not removed from recent:

    Constraints constraints = new Constraints.Builder()
                                .setRequiresBatteryNotLow(true)
                                .build();

    final OneTimeWorkRequest simpleRequest = new OneTimeWorkRequest.Builder(MyWorker.class)
            .setInitialDelay(3, TimeUnit.MINUTES)
            .setConstraints(constraints)
            .addTag("simple_work")
            .build();

    WorkManager workManager = WorkManager.getInstance();

    workManager.beginUniqueWork("simple_work", ExistingWorkPolicy.KEEP, simpleRequest).enqueue();

Worker class

    public class MyWorker extends Worker {
    private NotificationUtils notificationUtils;
    public static final String EXTRA_OUTPUT_MESSAGE = "output_message";

    public MyWorker(@NonNull Context context, @NonNull WorkerParameters workerParams) {
        super(context, workerParams);
    }

    @NonNull
    @Override
    public Result doWork() {

        notificationUtils = new NotificationUtils(getApplicationContext());
        notificationUtils.showNotificationMessage("TITLE", "This is a MESSEAGE",2);

        Data output = new Data.Builder()
                .putString(EXTRA_OUTPUT_MESSAGE, "I have come from MyWorker!")
                .build();

        setOutputData(output);

        return Result.SUCCESS;
    }


}

Problem is After Remove It from recent list It's send notification but after double time which I set. for example I set setInitialDelay 5 minutes but It's work after 10 minutes.

So ,Please guide me what I do wrong or It's not for schedule task at specific time which I set for once. I don't want to keep repeat work after It's done. I'm create just new after finish first OneTimeWorkRequest so It has to work fine as per documented beginUniqueWork.

Library I am using : implementation "android.arch.work:work-runtime:1.0.0-alpha11"

English isn't my native language so pardon me for grammatically mistake:)

Answer 1

You problem is not clear though please update latest work manager lib to android.arch.work:work-runtime:1.0.0-beta03

And you can explain me why do u need to enque the unique work ?

workManager.beginUniqueWork("simple_work", ExistingWorkPolicy.KEEP, simpleRequest).enqueue();

try to replace it with workManager.enque(simpleRequest); and let me know if worked