fix hide empty category

@@ -142,7 +142,10 @@ import SwiftEventBus
                     category.items.append(newCampaign)
                     category.items.append(newCampaign)
                 }
                 }
             }
             }
-            newData.append(category)
+            
+            if (category.items.count > 0) {
+                newData.append(category)
+            }
         }
         }
 
 
         // self.campaigns = tempCampaigns
         // self.campaigns = tempCampaigns