Fix app crash on clicking event without venue, fix #179

app/src/main/java/app/insti/fragment/EventFragment.java

@@ -208,6 +208,8 @@ public class EventFragment extends BackHandledFragment {
 
         setFollowButtonColors(event.getEventUserUes());
 
+
+        if (event.getEventVenues() != null && event.getEventVenues().size() != 0) {
             if (event.getEventVenues().get(0).getVenueLatitude() == 0) {
                 navigateButton.setVisibility(View.GONE);
             } else {
@@ -222,7 +224,7 @@ public class EventFragment extends BackHandledFragment {
                     }
                 });
             }
-
+        }
         shareEventButton.setOnClickListener(new View.OnClickListener() {
             String shareUrl = ShareURLMaker.getEventURL(event);