Schedule recurring job using firebase job dispatcher

Question

I am trying to post the location of the android device to server every 10 minutes. I am using firebase job dispatcher to do this

FirebaseJobDispatcher dispatche         


        

Answer 1

There are a few reasons why this could be happening. Firstly is your job returning false in onStopJob()? From the docs

@Override
public boolean onStopJob(JobParameters job) {
    return false; // Answers the question: "Should this job be retried?"
}

If the job needs be retried then the backoff will be applied. Combine this with the fact you want it to run again every 10-20 seconds you might get the results you are experiencing.

You have not set any constraints for the job, which also will affect when it will run. e.g.

.setConstraints( // only run on an unmetered network Constraint.ON_UNMETERED_NETWORK, // only run when the device is charging Constraint.DEVICE_CHARGING )

Furthermore, I would not use a scheduled job for what you are doing. Look at the Google API Client which offers periodic updates from the fused location provider.

You can implement a callback on your Service or Activity like so

public class MainActivity extends ActionBarActivity implements
        ConnectionCallbacks, OnConnectionFailedListener, LocationListener {
    ...
    @Override
    public void onLocationChanged(Location location) {
        mCurrentLocation = location;
        mLastUpdateTime = DateFormat.getTimeInstance().format(new Date());
        updateUI();
    }

    private void updateUI() {
        mLatitudeTextView.setText(String.valueOf(mCurrentLocation.getLatitude()));
        mLongitudeTextView.setText(String.valueOf(mCurrentLocation.getLongitude()));
        mLastUpdateTimeTextView.setText(mLastUpdateTime);
    }
}

Checkout the full docs here but I believe you will have a more consistent experience with services dedicated to what you are trying to achieve.

https://developer.android.com/training/location/receive-location-updates.html