Invisible for blank url

app/src/main/java/in/ac/iitb/gymkhana/iitbapp/fragment/EventFragment.java

@@ -130,6 +130,10 @@ public class EventFragment extends BaseFragment implements View.OnClickListener
                 startActivity(Intent.createChooser(i, "Share URL"));
             }
         });
+       if (event.getEventWebsiteURL() != null)
+      {
+        webEventButton.setVisibility(View.VISIBLE);
+      }
         webEventButton.setOnClickListener(new View.OnClickListener() {
            String eventwebURL = event.getEventWebsiteURL();
             @Override

app/src/main/res/layout/fragment_event.xml

@@ -64,7 +64,8 @@
                             android:background="?attr/selectableItemBackgroundBorderless"
                             android:contentDescription="Event Website"
                             android:src="@drawable/ic_language_black_24dp"
-                            android:tint="@color/colorWhite" />
+                            android:tint="@color/colorWhite"
+                            android:visibility="invisible"/>
 
                         <ImageButton
                             android:id="@+id/share_event_button"