node.js returns null push messages

2019-06-04 10:26发布

问题:

I want to implement pushmessages in my phonegap application.

I am using phonegap and followed the tutorial from http://devgirl.org/2013/07/17/tutorial-implement-push-notifications-in-your-phonegap-application/.

But when I run node.js and type node notify.js it returns null.

Could someone help me out?

Code I have used:

notify.js

var gcm = require('node-gcm');
var message = new gcm.Message();

//API Server Key
var sender = new gcm.Sender('MY SENDER ID');

var registrationIds = [];


// Value the payload data to send...
message.addData('message',"Bericht ontvangen!");
message.addData('title','Sample APP');
message.addData('msgcnt','3'); // Shows up in the notification in the status bar
message.timeToLive = 3;// Duration in seconds to hold and retry to deliver the message in GCM before timing out. Default 4 weeks if not specified

registrationIds.push('MY REGID');
/**
 * Parameters: message-literal, registrationIds-array, No. of retries, callback-function
 */


sender.send(message, registrationIds, 4, function (result) {
    console.log(result);
});

index.js:

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * 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
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
var app = {
    // Application Constructor
    initialize: function() {
        this.bindEvents();
    },
    // Bind Event Listeners
    //
    // Bind any events that are required on startup. Common events are:
    // 'load', 'deviceready', 'offline', and 'online'.
    bindEvents: function() {
        document.addEventListener('deviceready', this.onDeviceReady, false);
    },
    // deviceready Event Handler
    //
    // The scope of 'this' is the event. In order to call the 'receivedEvent'
    // function, we must explicity call 'app.receivedEvent(...);'
    onDeviceReady: function() {
        app.receivedEvent('deviceready');
    },
    // Update DOM on a Received Event
    receivedEvent: function(id) {
        var parentElement = document.getElementById(id);
        var listeningElement = parentElement.querySelector('.listening');
        var receivedElement = parentElement.querySelector('.received');

        listeningElement.setAttribute('style', 'display:none;');
        receivedElement.setAttribute('style', 'display:block;');

        console.log('Received Event: ' + id);
        var pushNotification = window.plugins.pushNotification;
        if (device.platform == 'android' || device.platform == 'Android') {
            alert("Register called");
            pushNotification.register(this.successHandler, this.errorHandler,{"senderID":"130874160086","ecb":"app.onNotificationGCM"});
        }
        else {
            alert("Register called");
            pushNotification.register(this.successHandler,this.errorHandler,{"badge":"true","sound":"true","alert":"true","ecb":"app.onNotificationAPN"});
        }
    },
    // result contains any message sent from the plugin call
    successHandler: function(result) {
        alert('Callback Success! Result = '+result)
    },
    errorHandler:function(error) {
        alert(error);
    },
    onNotificationGCM: function(e) {
        switch( e.event )
        {
            case 'registered':
                if ( e.regid.length > 0 )
                {
                    console.log("Regid " + e.regid);
                    alert('registration id = '+e.regid);
                }
            break;

            case 'message':
              // this is the actual push notification. its format depends on the data model from the push server
              alert('message = '+e.message+' msgcnt = '+e.msgcnt);
            break;

            case 'error':
              alert('GCM error = '+e.msg);
            break;

            default:
              alert('An unknown GCM event has occurred');
              break;
        }
    },
    onNotificationAPN: function(event) {
        var pushNotification = window.plugins.pushNotification;
        alert("Running in JS - onNotificationAPN - Received a notification! " + event.alert);

        if (event.alert) {
            navigator.notification.alert(event.alert);
        }
        if (event.badge) {
            pushNotification.setApplicationIconBadgeNumber(this.successHandler, this.errorHandler, event.badge);
        }
        if (event.sound) {
            var snd = new Media(event.sound);
            snd.play();
        }
    }
};

and when I open node.js go to my folder where notify.js is located the result I get is 'null'.

回答1:

Try building with:

cordova platform add android
cordova build android

instead of with:

ionic platform add android
ionic build android

I had the same problem when I followed this tutorial: http://devgirl.org/2014/12/16/push-notifications-sample-app-with-ionic-and-ngcordova/ but building with cordova solved it for me.