public void setDividerVerticalHeight(int height) {
    this.mVerticalDividerHeight = height;

    if (isDefaultItemDecoration && null != mFamiliarDefaultItemDecoration) {
      mFamiliarDefaultItemDecoration.setVerticalDividerDrawableHeight(mVerticalDividerHeight);

      if (null != mWrapFamiliarRecyclerViewAdapter) {
        mWrapFamiliarRecyclerViewAdapter.notifyDataSetChanged();
      }
    }
  }