안드로이드 맥어드레스 얻어오기 macaddress

public static String getMacAddress(Context context) {

 WifiManager wifiman = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);        

 WifiInfo wifiinfo = wifiman.getConnectionInfo();  

 String strMacAddress = "";

 if (wifiinfo.getMacAddress() != null)  {

   strMacAddress = wifiinfo.getMacAddress();

 }  

 return strMacAddress;

}