code: public void setTabs(ArrayList<String>tabs) {
          if (tabs == null || tabs.size() <= 0) return;
  
          if (platformSupportsTabs) {
              ArrayList<String> toAdd;
              if (tabs.size() > MAX_TABS) {
                  toAdd = new ArrayList<>(tabs.subList(0, MAX_TABS));
              } else {
                  toAdd = tabs;
              }
              this.tabs = toAdd.toArray(new String[0]);
          } else {
              Logger.d("Please upgrade com.android.support:design library to v28.0.0 to enable Tabs for App Inbox, dropping Tabs");
          }
      }
docs: Sets the name of the optional two tabs.
  The contents of the tabs are filtered based on the name of the tab.
  @param tabs ArrayList of Strings