Android Open Source - popcorn-android Network Manager

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Java Source Code

       Licensed to the Apache Software Foundation (ASF) under one
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       regarding copyright ownership.  The ASF licenses this file
       to you under the Apache License, Version 2.0 (the
       "License"); you may not use this file except in compliance
       with the License.  You may obtain a copy of the License at
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package org.apache.cordova.networkinformation;

import org.apache.cordova.CallbackContext;
import org.apache.cordova.CordovaInterface;
import org.apache.cordova.CordovaPlugin;
import org.apache.cordova.PluginResult;
import org.apache.cordova.CordovaWebView;
import org.json.JSONArray;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.util.Log;

public class NetworkManager extends CordovaPlugin {

    public static int NOT_REACHABLE = 0;
    public static int REACHABLE_VIA_CARRIER_DATA_NETWORK = 1;
    public static int REACHABLE_VIA_WIFI_NETWORK = 2;

    public static final String WIFI = "wifi";
    public static final String WIMAX = "wimax";
    // mobile
    public static final String MOBILE = "mobile";
    // 2G network types
    public static final String GSM = "gsm";
    public static final String GPRS = "gprs";
    public static final String EDGE = "edge";
    // 3G network types
    public static final String CDMA = "cdma";
    public static final String UMTS = "umts";
    public static final String HSPA = "hspa";
    public static final String HSUPA = "hsupa";
    public static final String HSDPA = "hsdpa";
    public static final String ONEXRTT = "1xrtt";
    public static final String EHRPD = "ehrpd";
    // 4G network types
    public static final String LTE = "lte";
    public static final String UMB = "umb";
    public static final String HSPA_PLUS = "hspa+";
    // return type
    public static final String TYPE_UNKNOWN = "unknown";
    public static final String TYPE_ETHERNET = "ethernet";
    public static final String TYPE_WIFI = "wifi";
    public static final String TYPE_2G = "2g";
    public static final String TYPE_3G = "3g";
    public static final String TYPE_4G = "4g";
    public static final String TYPE_NONE = "none";

    private static final String LOG_TAG = "NetworkManager";

    private CallbackContext connectionCallbackContext;
    private boolean registered = false;

    ConnectivityManager sockMan;
    BroadcastReceiver receiver;
    private String lastStatus = "";

     * Constructor.
    public NetworkManager() {
        this.receiver = null;

     * Sets the context of the Command. This can then be used to do things like
     * get file paths associated with the Activity.
     * @param cordova The context of the main Activity.
     * @param webView The CordovaWebView Cordova is running in.
    public void initialize(CordovaInterface cordova, CordovaWebView webView) {
        super.initialize(cordova, webView);
        this.sockMan = (ConnectivityManager) cordova.getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
        this.connectionCallbackContext = null;

        // We need to listen to connectivity events to update navigator.connection
        IntentFilter intentFilter = new IntentFilter();
        if (this.receiver == null) {
            this.receiver = new BroadcastReceiver() {
                public void onReceive(Context context, Intent intent) {
                    // (The null check is for the ARM Emulator, please use Intel Emulator for better results)
                    if(NetworkManager.this.webView != null)                        
            cordova.getActivity().registerReceiver(this.receiver, intentFilter);
            this.registered = true;


     * Executes the request and returns PluginResult.
     * @param action            The action to execute.
     * @param args              JSONArry of arguments for the plugin.
     * @param callbackContext   The callback id used when calling back into JavaScript.
     * @return                  True if the action was valid, false otherwise.
    public boolean execute(String action, JSONArray args, CallbackContext callbackContext) {
        if (action.equals("getConnectionInfo")) {
            this.connectionCallbackContext = callbackContext;
            NetworkInfo info = sockMan.getActiveNetworkInfo();
            PluginResult pluginResult = new PluginResult(PluginResult.Status.OK, this.getConnectionInfo(info));
            return true;
        return false;

     * Stop network receiver.
    public void onDestroy() {
        if (this.receiver != null && this.registered) {
            try {
                this.registered = false;
            } catch (Exception e) {
                Log.e(LOG_TAG, "Error unregistering network receiver: " + e.getMessage(), e);


     * Updates the JavaScript side whenever the connection changes
     * @param info the current active network info
     * @return
    private void updateConnectionInfo(NetworkInfo info) {
        // send update to javascript ""
        // Jellybean sends its own info
        String thisStatus = this.getConnectionInfo(info);
            lastStatus = thisStatus;

     * Get the latest network connection information
     * @param info the current active network info
     * @return a JSONObject that represents the network info
    private String getConnectionInfo(NetworkInfo info) {
        String type = TYPE_NONE;
        if (info != null) {
            // If we are not connected to any network set type to none
            if (!info.isConnected()) {
                type = TYPE_NONE;
            else {
                type = getType(info);
        Log.d("CordovaNetworkManager", "Connection Type: " + type);
        return type;

     * Create a new plugin result and send it back to JavaScript
     * @param connection the network info to set as navigator.connection
    private void sendUpdate(String type) {
        if (connectionCallbackContext != null) {
            PluginResult result = new PluginResult(PluginResult.Status.OK, type);
        webView.postMessage("networkconnection", type);

     * Determine the type of connection
     * @param info the network info so we can determine connection type.
     * @return the type of mobile network we are on
    private String getType(NetworkInfo info) {
        if (info != null) {
            String type = info.getTypeName();

            if (type.toLowerCase().equals(WIFI)) {
                return TYPE_WIFI;
            else if (type.toLowerCase().equals(MOBILE)) {
                type = info.getSubtypeName();
                if (type.toLowerCase().equals(GSM) ||
                        type.toLowerCase().equals(GPRS) ||
                        type.toLowerCase().equals(EDGE)) {
                    return TYPE_2G;
                else if (type.toLowerCase().startsWith(CDMA) ||
                        type.toLowerCase().equals(UMTS) ||
                        type.toLowerCase().equals(ONEXRTT) ||
                        type.toLowerCase().equals(EHRPD) ||
                        type.toLowerCase().equals(HSUPA) ||
                        type.toLowerCase().equals(HSDPA) ||
                        type.toLowerCase().equals(HSPA)) {
                    return TYPE_3G;
                else if (type.toLowerCase().equals(LTE) ||
                        type.toLowerCase().equals(UMB) ||
                        type.toLowerCase().equals(HSPA_PLUS)) {
                    return TYPE_4G;
        else {
            return TYPE_NONE;
        return TYPE_UNKNOWN;

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