public static String getLocalMacAddress(Context context) {
		String macAddress = "";
		try {
			if (null != context) {
				WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
				WifiInfo info = wifi.getConnectionInfo();
				macAddress = info.getMacAddress();
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return macAddress;
	}