android获取mac地址方法

http://www.cnblogs.com/xioapingguo/p/4037513.html 

网上找的，记录一下

public static String getMacAdress(){
        WifiManager wifi = (WifiManager) sContext.getSystemService(Context.WIFI_SERVICE);  
        WifiInfo info = wifi.getConnectionInfo();  
        return info.getMacAddress();
    }

记得加入权限<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>