大华摄像头SDK传入错误参数导致的未知Bug Demo
这是大华摄像头SDK传入错误参数导致的未知Bug Demo，Bug 表现为应用中不能存在值为 0 的整型变量，比如 int i = 0, i 会被赋值为 1，int 的包装类 Integer 则不受影响
bug产生位置位于 DaHuaNetUtil 的 isLoginHandlerValid_bug，该方法中调用的大华摄像头SDK方法 QueryRecordState 的第三个参数传入了错误参数 0
点击下图观看演示视频(视频中看到的代码不来自于本Demo，主要用于演示效果)：
本Demo需要成功登录大华摄像头才能产生bug，项目中SDK来自大华官网的SDK：设备网络SDK\_Android_V3.052.0000002.0.R.201103，摄像头使用的是
目前该摄像头在大华官网似乎没找到一模一样的型号
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