How does Android obtain the MAC address and IP address of the Local Machine?

1. How to obtain the MAC address of a local machine from Android:

You need to add permissions to the androidmanifest. xml file:

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> 

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

2. How to obtain the local IP address for Android:

1.public String getLocalIpAddress() {   2.        try {   3.            for (Enumeration<NetworkInterface> en = NetworkInterface   4.                    .getNetworkInterfaces(); en.hasMoreElements();) {   5.                NetworkInterface intf = en.nextElement();   6.                for (Enumeration<InetAddress> enumIpAddr = intf   7.                        .getInetAddresses(); enumIpAddr.hasMoreElements();) {   8.                    InetAddress inetAddress = enumIpAddr.nextElement();   9.                    if (!inetAddress.isLoopbackAddress()) {   10.                        return inetAddress.getHostAddress().toString();   11.                    }   12.                }   13.            }   14.        } catch (SocketException ex) {   15.            Log.e("WifiPreference IpAddress", ex.toString());   16.        }   17.        return null;   18.    }