https://qooah.com/2012/11/06/android-4-2-%e6%98%af%e8%bf%84%e7%ab%8b%e8%87%b3%e4%bb%8a%e7%82%ba%e6%ad%a2%e4%bf%9d%e5%ae%89%e5%ba%a6%e6%9c%80%e9%ab%98%e7%9a%84%e4%b8%80%e5%80%8b%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%b5%b1/