https://blog.wongcw.com/2020/08/01/android-11%e5%b0%87%e6%98%af%e6%9c%80%e5%be%8c%e4%b8%80%e6%ac%a1%e6%94%af%e6%8c%81pixel-2%e7%b3%bb%e5%88%97%e8%a8%ad%e5%82%99%e7%9a%84%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%b5%b1%e6%9b%b4%e6%96%b0/