Select location on MainActivity if multiple locations

app/src/main/java/com/rthoni/camotion/ui/MainActivity.java

 import com.rthoni.camotion.R;
 import com.rthoni.camotion.business.CamotionBusiness;
 import com.rthoni.camotion.dbo.LocationDbo;
+import com.rthoni.camotion.ui.dialogs.LocationPickerDialog;
 import com.rthoni.camotion.ui.dialogs.LoginDialog;
 import com.rthoni.camotion.ui.fragments.CamerasFragment;
 import com.rthoni.camotion.ui.fragments.CamotionFragment;
         _navigationView.getMenu().removeItem(item.getItemId());
 
         if (_currentLocation == null) {
-            setLocation(locations.get(0));
+            if (locations.size() == 1) {
+                setLocation(locations.get(0));
+            }
+            else {
+                LocationPickerDialog.getLocation(this)
+                        .then(new LuPromise.LuConsumer<LocationDbo>() {
+                            @Override
+                            public void execute(LocationDbo location) {
+                                setLocation(location);
+                            }
+                        }, new LuPromise.LuConsumer<LuPromise.LuPromiseError>() {
+                            @Override
+                            public void execute(LuPromise.LuPromiseError data) {
+                                setResult(RESULT_CANCELED);
+                                finish();
+                            }
+                        });
+            }
         }
 
     }