Dismiss TopSnackBar when reached at bottom.

Author: jainkuniya

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

@@ -146,7 +146,8 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
         recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
             @Override
             public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
-                mListener.recyclerViewScrolled();
+                //check if scrolled at last
+                mListener.recyclerViewScrolled(linearLayoutManager.findLastCompletelyVisibleItemPosition() == adapter.getItemCount() - 2);
                 final int near = 6;
                 if (newState == RecyclerView.SCROLL_STATE_IDLE) {
                     if (!paused && !loadingMessages && firstMessageId > 0 && lastMessageId > 0) {
@@ -699,7 +700,7 @@ private Message getMessageById(int id) {
     public interface Listener {
         void onListResume(MessageListFragment f);
 
-        void recyclerViewScrolled();
+        void recyclerViewScrolled(boolean isReachedAtBottom);
 
         void clearChatBox();
 

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

@@ -271,7 +271,7 @@ public HashMap<String, Bitmap> getGravatars() {
     }
 
     @Override
-    public void recyclerViewScrolled() {
+    public void recyclerViewScrolled(boolean isReachedAtBottom) {
             /* in this method we check if the messageEt is empty or not
             if messageEt is not empty, it means that the user has typed something in the chatBox and that the chatBox should be open
             in spite of scrolling */
@@ -297,6 +297,11 @@ else if (chatBox.getVisibility() == View.VISIBLE && streamActv.getText().toStrin
             displayFAB(true);
         }
 
+        //on reaching at bottom dismiss snackBar
+        if (isReachedAtBottom && topSnackBar.isShown()) {
+            topSnackBar.dismiss();
+        }
+
     }
 
     public RefreshableCursorAdapter getPeopleAdapter() {