https://qooah.com/2014/10/31/android-%e4%b9%8b%e7%88%b6-andy-rubin-%e9%9b%a2%e9%96%8b%e4%ba%86-google-%e5%86%8d%e5%a4%b1%e4%b8%80%e7%8c%9b%e5%b0%87/