https://qooah.com/2011/04/18/netqin-%e6%8c%87%e5%87%ba%e4%b8%ad%e5%9c%8b%e5%85%a7%e5%9c%b0%e6%98%afandroid%e6%89%8b%e6%a9%9f%e7%97%85%e6%af%92%e9%87%8d%e7%81%bd%e5%8d%80/