https://blog.wongcw.com/2020/09/10/emui-11%e9%80%a3%e9%80%9a%e9%b4%bb%e8%92%99os-%e8%8f%af%e7%82%ba%e6%83%b3%e6%89%93%e9%80%a0%e5%80%8b%e8%b6%85%e7%b4%9a%e7%b5%82%e7%ab%af/