Hide irrelevant card list titles in Body Fragment

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

@@ -130,6 +130,14 @@ public class BodyFragment extends Fragment {
         });
     }
 
+    private void setVisibleIfHasElements(int[] viewIds, List list) {
+        if (list != null && list.size() > 0) {
+            for (int viewId: viewIds){
+                getActivity().findViewById(viewId).setVisibility(View.VISIBLE);
+            }
+        }
+    }
+
     private void displayBody(final Body body) {
         TextView bodyName = (TextView) getView().findViewById(R.id.body_name);
         TextView bodyDescription = (TextView) getView().findViewById(R.id.body_description);
@@ -138,6 +146,12 @@ public class BodyFragment extends Fragment {
         ImageButton shareBodyButton = getActivity().findViewById(R.id.share_body_button);
         final Button followButton = getActivity().findViewById(R.id.follow_button);
 
+        /* Show relevant card titles */
+        setVisibleIfHasElements(new int[]{R.id.body_events_title, R.id.event_card_recycler_view}, body.getBodyEvents());
+        setVisibleIfHasElements(new int[]{R.id.body_orgs_title, R.id.org_card_recycler_view}, body.getBodyChildren());
+        setVisibleIfHasElements(new int[]{R.id.body_parents_title, R.id.parentorg_card_recycler_view}, body.getBodyParents());
+        setVisibleIfHasElements(new int[]{R.id.body_people_title, R.id.people_card_recycler_view}, body.getBodyRoles());
+
         /* Set body information */
         bodyName.setText(body.getBodyName());
         Picasso.with(getContext()).load(body.getBodyImageURL()).into(eventPicture);

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

@@ -127,6 +127,8 @@
                     android:textSize="16sp" />
 
                 <TextView
+                    android:id="@+id/body_events_title"
+                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginLeft="15dp"
@@ -136,12 +138,15 @@
 
                 <android.support.v7.widget.RecyclerView
                     android:id="@+id/event_card_recycler_view"
+                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"
                     android:nestedScrollingEnabled="false" />
 
                 <TextView
+                    android:id="@+id/body_orgs_title"
+                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginLeft="15dp"
@@ -151,12 +156,15 @@
 
                 <android.support.v7.widget.RecyclerView
                     android:id="@+id/org_card_recycler_view"
+                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"
                     android:nestedScrollingEnabled="false" />
 
                 <TextView
+                    android:id="@+id/body_people_title"
+                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginLeft="15dp"
@@ -166,12 +174,15 @@
 
                 <android.support.v7.widget.RecyclerView
                     android:id="@+id/people_card_recycler_view"
+                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"
                     android:nestedScrollingEnabled="false" />
 
                 <TextView
+                    android:id="@+id/body_parents_title"
+                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginLeft="15dp"
@@ -181,6 +192,7 @@
 
                 <android.support.v7.widget.RecyclerView
                     android:id="@+id/parentorg_card_recycler_view"
+                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"