Android Context Get getBroadcastAddress(Context context)

Description

get Broadcast Address

License

Open Source License

Declaration

public static String getBroadcastAddress(Context context) 

Method Source Code

//package com.java2s;
import java.net.InetAddress;

import java.net.UnknownHostException;

import android.content.Context;
import android.net.DhcpInfo;
import android.net.wifi.WifiManager;

public class Main {
    public static String getBroadcastAddress(Context context) {
        WifiManager wifi = (WifiManager) context
                .getSystemService(Context.WIFI_SERVICE);
        DhcpInfo dhcp = wifi.getDhcpInfo();

        int broadcast = (dhcp.ipAddress & dhcp.netmask) | ~dhcp.netmask;
        byte[] quads = new byte[4];
        for (int k = 0; k < 4; k++)
            quads[k] = (byte) (broadcast >> (k * 8));
        try {//from w  ww . j av a2s  . c  om
            return InetAddress.getByAddress(quads).getHostAddress();
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }

        return "255.255.255.255";
    }
}

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