Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: GNU General Public License 

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.Enumeration;

import android.util.Log;
import java.util.regex.Pattern;

public class Main {
    private static final Pattern IPV4_PATTERN = Pattern
            .compile("^(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}$");

    /**
     * Get all device ip addresses
     * @return {@link array}
     */
    public static String[] getLocalIpAddress() {
        ArrayList<String> addresses = new ArrayList<String>();
        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()) {
                        //IPAddresses.setText(inetAddress.getHostAddress().toString());
                        boolean isIPv4 = isIPv4Address(inetAddress.getHostAddress().toString());
                        if (isIPv4) {
                            addresses.add(inetAddress.getHostAddress().toString());
                        }
                    }
                }
            }
        } catch (SocketException ex) {
            String LOG_TAG = null;
            Log.e(LOG_TAG, ex.toString());
        }

        return addresses.toArray(new String[0]);
    }

    public static boolean isIPv4Address(final String input) {
        return IPV4_PATTERN.matcher(input).matches();
    }
}