Show navigation button only when we have location

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

@@ -187,16 +187,20 @@ public class EventFragment extends BackHandledFragment {
 
         setFollowButtonColors(event.getEventUserUes());
 
-        navigateButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                Venue primaryVenue = event.getEventVenues().get(0);
-                Uri gmmIntentUri = Uri.parse("google.navigation:q=" + primaryVenue.getVenueLatitude() + "," + primaryVenue.getVenueLongitude() + "(" + primaryVenue.getVenueName() + ")");
-                Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri);
-                mapIntent.setPackage("com.google.android.apps.maps");
-                startActivity(mapIntent);
-            }
-        });
+        if (event.getEventVenues().get(0).getVenueLatitude() == 0) {
+            navigateButton.setVisibility(View.GONE);
+        } else {
+            navigateButton.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    Venue primaryVenue = event.getEventVenues().get(0);
+                    Uri gmmIntentUri = Uri.parse("google.navigation:q=" + primaryVenue.getVenueLatitude() + "," + primaryVenue.getVenueLongitude() + "(" + primaryVenue.getVenueName() + ")");
+                    Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri);
+                    mapIntent.setPackage("com.google.android.apps.maps");
+                    startActivity(mapIntent);
+                }
+            });
+        }
 
         shareEventButton.setOnClickListener(new View.OnClickListener() {
             String shareUrl = ShareURLMaker.getEventURL(event);