https://qooah.com/2014/10/24/oppo-%e5%b0%87%e7%99%bc%e5%b8%83%e4%b8%80%e5%8f%b04-x%e6%af%ab%e7%b1%b3%e5%8e%9a%e5%ba%a6%e7%9a%84%e5%85%a8%e7%90%83%e6%9c%80%e8%96%84-android%e6%a9%9f/