Android - NetworkInterface vs WifiManager

I am trying to show the ip address of of connected network(WiFi/Ethernet). I am confusing by two ip address. I can see two approaches. Get IP using WiFi info and Get IP using NetworkInterface. But I am getting two different IP's. Which one I need to use. Please let me know.

Using NetworkInterface:

private void getIpUsingNetworkInterface() {

        String ipAddress = null;

        try {

            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {

                NetworkInterface intf = en.nextElement();

                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {

                    InetAddress inetAddress = enumIpAddr.nextElement();

                    if (!inetAddress.isLoopbackAddress()) {

                        ipAddress = inetAddress.getHostAddress().toString();

                    }

                }

            }

            Log.i("ipaddress==> ", "" + ipAddress);



            Log.i("", "");

        } catch (SocketException e) {

            e.printStackTrace();

        }

    }

Using WifiManager:

private void getIPUsingWiFiManager() {

        final WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(context.WIFI_SERVICE);

        WifiInfo wifiInfo = wifiManager.getConnectionInfo();

        byte myIPAddress = BigInteger.valueOf(wifiInfo.getIpAddress()).toByteArray();

        InetAddress myInetIP = InetAddress.getByAddress(reverseByte(myIPAddress));

        String ipAddress = myInetIP.getHostAddress();

    }

And also I can get IP address from DhcpInfo.

DhcpInfo dhcp = wifiManager.getDhcpInfo();

String ipAddress = dhcp.ipAddress;

Please let me know which is the best and correct way to get the IP address of connected network.

asked Nov 19 '18 at 12:24

New Developer

6301132

Plot twist: a single network interface can have many IP addresses.
– m0skit0
Nov 19 '18 at 12:27

add a comment |

Using NetworkInterface:

private void getIpUsingNetworkInterface() {

        String ipAddress = null;

        try {

            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {

                NetworkInterface intf = en.nextElement();

                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {

                    InetAddress inetAddress = enumIpAddr.nextElement();

                    if (!inetAddress.isLoopbackAddress()) {

                        ipAddress = inetAddress.getHostAddress().toString();

                    }

                }

            }

            Log.i("ipaddress==> ", "" + ipAddress);



            Log.i("", "");

        } catch (SocketException e) {

            e.printStackTrace();

        }

    }

Using WifiManager:

private void getIPUsingWiFiManager() {

        final WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(context.WIFI_SERVICE);

        WifiInfo wifiInfo = wifiManager.getConnectionInfo();

        byte myIPAddress = BigInteger.valueOf(wifiInfo.getIpAddress()).toByteArray();

        InetAddress myInetIP = InetAddress.getByAddress(reverseByte(myIPAddress));

        String ipAddress = myInetIP.getHostAddress();

    }

And also I can get IP address from DhcpInfo.

DhcpInfo dhcp = wifiManager.getDhcpInfo();

String ipAddress = dhcp.ipAddress;

Please let me know which is the best and correct way to get the IP address of connected network.

asked Nov 19 '18 at 12:24

New Developer

6301132

Plot twist: a single network interface can have many IP addresses.
– m0skit0
Nov 19 '18 at 12:27

add a comment |

Using NetworkInterface:

private void getIpUsingNetworkInterface() {

        String ipAddress = null;

        try {

            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {

                NetworkInterface intf = en.nextElement();

                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {

                    InetAddress inetAddress = enumIpAddr.nextElement();

                    if (!inetAddress.isLoopbackAddress()) {

                        ipAddress = inetAddress.getHostAddress().toString();

                    }

                }

            }

            Log.i("ipaddress==> ", "" + ipAddress);



            Log.i("", "");

        } catch (SocketException e) {

            e.printStackTrace();

        }

    }

Using WifiManager:

private void getIPUsingWiFiManager() {

        final WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(context.WIFI_SERVICE);

        WifiInfo wifiInfo = wifiManager.getConnectionInfo();

        byte myIPAddress = BigInteger.valueOf(wifiInfo.getIpAddress()).toByteArray();

        InetAddress myInetIP = InetAddress.getByAddress(reverseByte(myIPAddress));

        String ipAddress = myInetIP.getHostAddress();

    }

And also I can get IP address from DhcpInfo.

DhcpInfo dhcp = wifiManager.getDhcpInfo();

String ipAddress = dhcp.ipAddress;

Please let me know which is the best and correct way to get the IP address of connected network.

asked Nov 19 '18 at 12:24

New Developer

6301132

Using NetworkInterface:

private void getIpUsingNetworkInterface() {

        String ipAddress = null;

        try {

            for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {

                NetworkInterface intf = en.nextElement();

                for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {

                    InetAddress inetAddress = enumIpAddr.nextElement();

                    if (!inetAddress.isLoopbackAddress()) {

                        ipAddress = inetAddress.getHostAddress().toString();

                    }

                }

            }

            Log.i("ipaddress==> ", "" + ipAddress);



            Log.i("", "");

        } catch (SocketException e) {

            e.printStackTrace();

        }

    }

Using WifiManager:

private void getIPUsingWiFiManager() {

        final WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(context.WIFI_SERVICE);

        WifiInfo wifiInfo = wifiManager.getConnectionInfo();

        byte myIPAddress = BigInteger.valueOf(wifiInfo.getIpAddress()).toByteArray();

        InetAddress myInetIP = InetAddress.getByAddress(reverseByte(myIPAddress));

        String ipAddress = myInetIP.getHostAddress();

    }

And also I can get IP address from DhcpInfo.

DhcpInfo dhcp = wifiManager.getDhcpInfo();

String ipAddress = dhcp.ipAddress;

Please let me know which is the best and correct way to get the IP address of connected network.

android

asked Nov 19 '18 at 12:24

New Developer

6301132

asked Nov 19 '18 at 12:24

New Developer

6301132

asked Nov 19 '18 at 12:24

New Developer

6301132

asked Nov 19 '18 at 12:24

New Developer

6301132

asked Nov 19 '18 at 12:24

New Developer

6301132

Plot twist: a single network interface can have many IP addresses.
– m0skit0
Nov 19 '18 at 12:27

add a comment |

Plot twist: a single network interface can have many IP addresses.
– m0skit0
Nov 19 '18 at 12:27

Plot twist: a single network interface can have many IP addresses.
– m0skit0
Nov 19 '18 at 12:27

add a comment |

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