Getlastknownlocation Always Return Null After I Re-Install the APK File via Eclipse

getLastKnownLocation() returns null

Is there anything I'm missing on how to solve this?

GPS radios are powered down normally, as they are major battery drain. Hence, getLastKnownLocation() can frequently return null or a stale location, because nothing is checking for location fixes. getLastKnownLocation(), therefore, is only useful if you have a casual interest in the location and are happy if there is no location.

If you need to know the location, you will need to use requestLocationUpdates() or similar stuff, to cause Android to power on the GPS radio and actively try to find the location.

getLastKnownLocation always returns null in Android 10, after code was working fine in Android 9

Adding the Manifest.permission.ACCESS_BACKGROUND_LOCATIONpermission caused the above code to work again as is.

https://developer.android.com/training/location/permissions#background

getlastknownlocation() return null and App is shutting down

If you want to get the Location in your activity and if is not needed to run it in a background, you could try this.

package com.jmarkstar.activitylocation;

import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    private LocationManager locationManager;
    private MyLocationListener locationListener;
    private String latitude;
    private String longitude;

    @Override
    protected void onStart() {
        super.onStart();

        locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
        locationListener = new MyLocationListener();
        Criteria criteria = new Criteria();
        criteria.setAltitudeRequired(false);
        criteria.setBearingRequired(false);
        criteria.setCostAllowed(false);
        criteria.setPowerRequirement(Criteria.ACCURACY_FINE);

        String bestEnabledProvider = locationManager.getBestProvider(criteria, true);
        locationManager.requestLocationUpdates(bestEnabledProvider, 0, 0, locationListener);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //YOU CODE
    }

    private class MyLocationListener implements LocationListener {

            @Override
            public void onLocationChanged(Location location) {
                makeUseOfNewLocation(location);
                locationManager.removeUpdates(locationListener);
            }

            private void makeUseOfNewLocation(final Location location) {
                if (location != null) {
                    String message = "position: " + location.getLatitude() + ", " + location.getLongitude() + " accuracy: " + location.getAccuracy();
                    Toast.makeText(getApplicationContext(), message, Toast.LENGTH_LONG).show();

                    latitude = String.valueOf(location.getLatitude());
                    longitude = String.valueOf(location.getLongitude());

                    //YOUR CODE
                }
            }

        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {}

        @Override
        public void onProviderEnabled(String provider) {}

        @Override
        public void onProviderDisabled(String provider) {}
    }
}

locationManager.getLastKnownLocation() return null

I had this exact same problem. It was because my device was not storing a last known location. I simply went on to Google Maps and pinpointed my location with GPS, then a value was returned for getLastKnownLocation()

getLastKnownLocation() does not necessarily give current location

Have you tried requesting permission to the ACCESS_FINE_LOCATION provider in your manifest and then from the LocationManager, calling getLastKnownLocation(LocationManager.GPS_PROVIDER)?

It should return to you the last known location acquired by the GPS provider, else null if it can't get the location

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