Java tutorial
//package com.java2s; //License from project: Open Source License import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.ArrayList; import java.util.Enumeration; import java.util.HashMap; import android.util.Log; public class Main { private static String TAG = "Utilities"; public static HashMap<String, ArrayList<String>> getLocalIpAddresses() { try { HashMap<String, ArrayList<String>> result = new HashMap<String, ArrayList<String>>(); for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en .hasMoreElements();) { NetworkInterface intf = en.nextElement(); String name = intf.getName(); ArrayList<String> addresses = new ArrayList<String>(); for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress()) { addresses.add(inetAddress.getHostAddress().toString()); } } result.put(name, addresses); } return result; } catch (SocketException ex) { Log.e(TAG, ex.toString()); } return null; } }