I am trying to create an social application which allow users to post something fetching their location and show that post only to the nearest users. However, i am getting NPE error while fetching the longitude and latitude of user. I couldnot figureout what actually is wrong with my code. Here is the error:
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'double android.location.Location.getLatitude()' on a null object reference
at com.jstechnologies.helpinghands.utils.AddressUtils.getAddressFromGps(AddressUtils.java:44)
at com.jstechnologies.helpinghands.ui.MyApp.getAddress(MyApp.java:30)
at com.jstechnologies.helpinghands.ui.views.dashBoard.DashBoardViewModel.fetchAddress(DashBoardViewModel.java:65)
at com.jstechnologies.helpinghands.ui.views.dashBoard.DashBoardActivity.onCreate(DashBoardActivity.java:64)
at android.app.Activity.performCreate(Activity.java:7136)
at android.app.Activity.performCreate(Activity.java:7127)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1272)
This is my AddressUtils.java file
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.Application;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import androidx.core.app.ActivityCompat;
import androidx.fragment.app.Fragment;
import pub.devrel.easypermissions.AfterPermissionGranted;
import pub.devrel.easypermissions.EasyPermissions;
public class AddressUtils {
private static final int RC_LOCATION_PERMISSION = 102;
@AfterPermissionGranted(RC_LOCATION_PERMISSION)
public Address getAddressFromGps(Context context) throws IOException {
String[] perms = {Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION};
if (EasyPermissions.hasPermissions(context, perms)) {
String provider;
LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
@SuppressLint("MissingPermission")
Location location = locationManager.getLastKnownLocation(provider);
Geocoder geocoder= new Geocoder(context, Locale.getDefault());
List<android.location.Address> addresses = geocoder.getFromLocation(location.getLatitude(),location.getLongitude(), 1);
Address address= new Address();
//ACCORDING TO LOGCAT THIS BELOW LINE HAS ERROR I GUESS
address.setLat(location.getLatitude());
address.setLon(location.getLongitude());
address.setCountry(addresses.get(0).getCountryName());
address.setCity(addresses.get(0).getLocality());
address.setState(addresses.get(0).getAdminArea());
address.setPincode(addresses.get(0).getPostalCode());
address.setAddressLine1(addresses.get(0).getAddressLine(0));
address.setAddressLine2(addresses.get(0).getAddressLine(1));
return address;
} else {
EasyPermissions.requestPermissions((Activity) context,"Location permissions are required",RC_LOCATION_PERMISSION,perms);
return null;
}
}
}
I would like to add some images of the line of code regarding the error shown by logcat on other java files (maybe this isn't required). I need to complete this project in 2 days , however, i am stucked here. Any help please.
