IPAddressPlugin.java

package org.apache.cordova.plugins;

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

import org.apache.cordova.api.Plugin;
import org.apache.cordova.api.PluginResult;
import org.json.JSONArray;

import android.util.Log;

public class IPAddressPlugin extends Plugin {

    public PluginResult execute(String action, JSONArray args, String callbackId) {
        if (action.equals("get")) {
            String ipAddress = getIpAddress();
            if (ipAddress != null && ipAddress.length() > 0) {
                return new PluginResult(PluginResult.Status.OK, ipAddress);
            } else {
                return new PluginResult(PluginResult.Status.ERROR);
            }
        } else {
            return new PluginResult(PluginResult.Status.INVALID_ACTION);
        }
    }

    private String getIpAddress() {
        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()) {
                        return inetAddress.getHostAddress().toString();
                    }
                }
            }
        } catch (SocketException ex) {
            Log.e("IPAddress", ex.toString());
        }
        return null;
    }
}