https://blog.wongcw.com/2018/10/14/android-vip%e5%bd%b1%e8%a7%86%ef%bc%8c%e5%8f%af%e4%bb%a5%e7%9c%8b%e5%85%a8%e7%bd%91vip%e8%a7%86%e9%a2%91/