Hide ChatBox on scroll

Author: kunall17

app/src/main/java/com/zulip/android/activities/MessageListFragment.java

@@ -58,6 +58,7 @@ public interface Listener {
         void addToList(Message message);
         void muteTopic(Message message);
 
+        void recyclerViewScrolled();
         void clearChatBox();
     }
 
@@ -147,6 +148,7 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
         recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
             @Override
             public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
+                mListener.recyclerViewScrolled();
                 final int near = 6;
                 if (!paused && !loadingMessages && firstMessageId > 0 && lastMessageId > 0) {
                     int lastVisiblePosition = linearLayoutManager.findLastVisibleItemPosition();

app/src/main/java/com/zulip/android/activities/ZulipActivity.java

@@ -232,6 +232,12 @@ public void muteTopic(Message message) {
         homeList.adapter.notifyDataSetChanged();
     }
 
+    @Override
+    public void recyclerViewScrolled() {
+        if (chatBox.getVisibility() == View.VISIBLE && hideFABBlocked) {
+            displayChatBox(false);
+        }
+    }
     public RefreshableCursorAdapter getPeopleAdapter() {
         return peopleAdapter;
     }