Fix some crash

app/src/main/java/fr/mobdev/blooddonation/Database.java

@@ -151,6 +151,8 @@ public class Database extends SQLiteOpenHelper {
     }
 
     public void addSitesToDb(List<BloodSite> sites) {
+        if(sites == null)
+            return;
         //remove existing site in the list
         List<BloodSite> oldList = getBloodSites(-1);
         List<BloodSite> removeList = new ArrayList<>();

app/src/main/java/fr/mobdev/blooddonation/fragment/MapsFragment.java

@@ -169,7 +169,7 @@ public class MapsFragment extends Fragment implements OnMapReadyCallback {
                         userCenter.remove();
 
                     MarkerOptions markerOptions = new MarkerOptions().position(new LatLng(location.getLatitude(),location.getLongitude()))
-                                                    .icon(BitmapDescriptorFactory.getInstance().fromResource(R.drawable.userlocation));
+                                                    .icon(BitmapDescriptorFactory.getInstance().fromResource(R.drawable.userlocation)).anchor(0.5f,0.5f);
                     userCenter = map.addMarker(markerOptions);
                 }
                 Database.getInstance(getActivity()).updateUserLoc(location.getLatitude(), location.getLongitude());
@@ -177,7 +177,12 @@ public class MapsFragment extends Fragment implements OnMapReadyCallback {
                     List<Address> addrList = coder.getFromLocation(location.getLatitude(), location.getLongitude(), 5);
                     for (Address addr : addrList) {
                         if (addr != null && addr.getPostalCode() != null) {
-                            Integer code = Integer.valueOf(addr.getPostalCode());
+                            Integer code;
+                            try {
+                                code = Integer.valueOf(addr.getPostalCode());
+                            } catch (NumberFormatException e) {
+                                continue;
+                            }
                             int original = (code - (code % 1000)) / 1000;
                             if (original == 97) {
                                 postCode = (code - (code % 100)) / 100;
@@ -512,6 +517,7 @@ public class MapsFragment extends Fragment implements OnMapReadyCallback {
                     else
                         res = R.drawable.mixed;
                     options.icon(BitmapDescriptorFactory.getInstance().fromResource(res));
+                    options.anchor(0.5f,0.5f);
                 }
                 markerList.put(site.getDbId(),map.addMarker(options));
             }