Brtdku

I tried to get user location when user was movement. I wrote below code and i set smallest displacement to 30 meter and interval to 0 millisecond that i get location in every 30 meter movement but my application not worked correct. If i stop in a place, the application didn't get location and this is true but when i moved, sometimes i get location in 100 meter movement or more. Why?
If i get location in more than 30 meter, i lost some points and this is important for me.

This is My Code for request location update:

 private void createLocationRequest() {

    mLocationRequest = new LocationRequest();

    mLocationRequest.setInterval(0);//(UPDATE_INTERVAL_IN_MILLISECONDS);

    mLocationRequest.setFastestInterval(0);//(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);

    mLocationRequest.setSmallestDisplacement(30);

    mLocationRequest.setMaxWaitTime(MAX_WAITE_TIME);



    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

}

LocationRequest.setSmallestDisplacement doesn't give you a better accuracy, it's just to avoid unnecessary updates.

There is no method to enhance low accuracy, you just get a point with some accuracy, if you are not interested in positions with low accuracy just skip this location and wait for a better one.

No perfect accuracy is available now, the accuracy is 100m for worse accuracy.

check android developers page for more information:

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

Try this:
Set the accuracy level to ACCURACY_FINE

Set the highest power (to get best GPS signal)

Don’t request the altitude.

Set speedRequired to false

Set CostAllowed flag to true

Set BearingRequired to false

Set HorizontalAccuracy and VerticalAccuracy to HIGH

read more about these function, you will understand why.

Criteria tenM= new Criteria();

tenM.setAccuracy(Criteria.ACCURACY_FINE);

tenM.setPowerRequirement(Criteria.POWER_HIGH);

tenM.setAltitudeRequired(false);

tenM.setSpeedRequired(false);

tenM.setCostAllowed(true);

tenM.setBearingRequired(false);

tenM.setHorizontalAccuracy(Criteria.ACCURACY_HIGH);

tenM.setVerticalAccuracy(Criteria.ACCURACY_HIGH);



locationManager.requestLocationUpdates(1000 /*milliseconds*/,  1 

/*1 meter*/, 

tenM /*criteria*/, this /*context*/, null);

That's because your location accuracy is above 30m (presumably much higher). So when you change your location by 100 m, you are still in the estimated location circle. You can get location accuracy to see if true, but anyway you don't have a better choice than get coordinates frequently and choose the one with most accuracy.