Wednesday, September 22, 2010

Get IP address of device in android

AIM :Get IP address of device in android
Solution: 

The following method returns the device ip address which is currently used by device irrespective of type of connection ie.,either 3g/wifi/any other.

It returns NULL if there is no network connection.


public static String getipAddress() {
            try {
                for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
                    NetworkInterface intf = en.nextElement();
                    for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                        InetAddress inetAddress = enumIpAddr.nextElement();
                        if (!inetAddress.isLoopbackAddress()) {
                            String ipaddress=inetAddress.getHostAddress().toString();
                            Log.e("ip address",""+ipaddress);
                            return ipaddress;
                        }
                    }
                }
            } catch (SocketException ex) {
                Log.e("Socket exception in GetIP Address of Utilities", ex.toString());
            }
            return null;
    }

Call the above method wherever you wnat to get ip address as
String ipaddress=getipAddress();

--------------------------

18 comments:

  1. check the loop curly bracket that whole loop return false,
    Once it will going to catch Exception then return Null.

    So u need to do Explicitly change IP & get InetAddress API using return IP .getHostAddress();


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    ReplyDelete
  2. Hi, this is not working for me on android 1.5 :( is there any other solution?

    ReplyDelete
  3. it works on 1.5 you just need to add android.permission.INTERNET to your project's AndroidManifest.xml

    ReplyDelete
  4. The code is working fine on other devices except on Android OS 4.0.3. It returned the fe80::b607:f9ff:fee5:487e..etc … I dont know why.. Please help me

    ReplyDelete
    Replies
    1. public String getLocalIpAddress() {
      try {
      for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
      NetworkInterface intf = en.nextElement();
      for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
      InetAddress inetAddress = enumIpAddr.nextElement();
      if (!inetAddress.isLoopbackAddress()) {
      return inetAddress.getHostAddress().toString();
      }
      }
      }
      } catch (SocketException ex) {
      Log.e(LOG_TAG, ex.toString());
      }
      return null;


      From: http://stackoverflow.com/questions/10835017/android-get-ip-over-wifi-on-ics

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