App Crashes when LastKnownLocation is null

[ashishkumar468]

Summary:

Summarize your issue in one sentence (what goes wrong, what did you expect to happen)

• On Granting Location Permission, if somehow last known location is null, app crashes

Steps to reproduce:
Open Nearby on Fresh Install, Grant Location Permission

System logs:

java.lang.NullPointerException: Attempt to invoke virtual method 'double fr.free.nrw.commons.location.LatLng.getLatitude()' on a null object reference
        at fr.free.nrw.commons.utils.LocationUtils.commonsLatLngToMapBoxLatLng(LocationUtils.java:11)
        at fr.free.nrw.commons.nearby.presenter.NearbyParentFragmentPresenter.areLocationsClose(NearbyParentFragmentPresenter.java:372)
        at fr.free.nrw.commons.nearby.fragments.NearbyParentFragment.isUserBrowsing(NearbyParentFragment.java:897)
        at fr.free.nrw.commons.nearby.fragments.NearbyParentFragment.onLocationChangedSignificantly(NearbyParentFragment.java:904)
        at fr.free.nrw.commons.location.LocationServiceManager.onLocationChanged(LocationServiceManager.java:183)
        at android.location.LocationManager$ListenerTransport._handleMessage(LocationManager.java:297)
        at android.location.LocationManager$ListenerTransport.-wrap0(LocationManager.java)
        at android.location.LocationManager$ListenerTransport$1.handleMessage(LocationManager.java:242)

Device and Android version:

Samsung S7, Api 27

Commons app version:
Current master

Would you like to work on the issue?
Yes