public void setDividerHorizontalHeight(int height) { this.mHorizontalDividerHeight = height; if (isDefaultItemDecoration && null != mFamiliarDefaultItemDecoration) { mFamiliarDefaultItemDecoration.setHorizontalDividerDrawableHeight(mHorizontalDividerHeight); if (null != mWrapFamiliarRecyclerViewAdapter) { mWrapFamiliarRecyclerViewAdapter.notifyDataSetChanged(); } } }