Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

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

import android.content.Context;

import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;

import android.text.TextUtils;

public class Main {

    public static String getLocalIpAddress(Context context) {
        WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
        WifiInfo wifiInfo = wifiManager.getConnectionInfo();
        if (wifiInfo != null && wifiInfo.getIpAddress() != 0) {
            return android.text.format.Formatter.formatIpAddress(wifiInfo.getIpAddress());
        } else {
            try {
                Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
                while (en.hasMoreElements()) {
                    NetworkInterface intf = en.nextElement();
                    Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses();
                    while (enumIpAddr.hasMoreElements()) {
                        InetAddress inetAddress = enumIpAddr.nextElement();
                        if (!inetAddress.isLoopbackAddress() && inetAddress.getHostAddress().indexOf(":") == -1) {
                            String ipAddress = inetAddress.getHostAddress();
                            if (!TextUtils.isEmpty(ipAddress) && !ipAddress.contains(":")) {
                                return ipAddress;
                            }
                        }
                    }
                }
            } catch (SocketException e) {
                e.printStackTrace();
            }
        }
        return null;
    }
}