https://blog.wongcw.com/2019/09/04/%e8%b0%b7%e6%ad%8c%e5%b0%87android-10-0%e9%96%8b%e6%ba%90%e4%bb%a3%e7%a2%bc%e7%99%bc%e9%80%81%e5%88%b0aosp/