private void addTab(CharSequence text, int index) {
   final TabView tabView = new TabView(getContext());
   tabView.mIndex = index;
   tabView.setFocusable(true);
   tabView.setOnClickListener(mTabClickListener);
   tabView.setText(text);
   mTabLayout.addView(tabView, new LinearLayout.LayoutParams(WRAP_CONTENT, FILL_PARENT, 1));
 }
  private void addTab(int index, CharSequence text, int iconResId) {
    final TabView tabView = new TabView(getContext());
    tabView.mIndex = index;
    tabView.setFocusable(true);
    tabView.setOnClickListener(mTabClickListener);
    tabView.setText(text);

    if (iconResId != 0) {
      tabView.setCompoundDrawablesWithIntrinsicBounds(iconResId, 0, 0, 0);
    }

    mTabLayout.addView(tabView, new LinearLayout.LayoutParams(0, MATCH_PARENT, 1));
  }