How to use broadcast reciever to get sent intent from smsmanager (nativescript)

Question

I am using nativescript to build an app that will programmatically send a pre-built text to multiple preset parties in case of emergency.

I have an array of phone numbers and want to iterate over each one, using SMSmanager to send the text and the sentIntent argument seen in android docs to verify that the text was sent before moving on to the next array item.

I have created the pendingIntent variable to pass into "sms.sendTextMessage" as follows:

var sms = android.telephony.SmsManager.getDefault();
var utils = require("utils/utils");

//Gets application's current state
var context = utils.ad.getApplicationContext();
//Create a replica of Android's intent object
var intent = new android.content.Intent(context, com.tns.NativeScriptActivity.class);

//Create a replica of Android's pendingIntent object using context and intent
var pendingIntent = android.app.PendingIntent.getActivity(context, 1, intent, android.app.PendingIntent.FLAG_UPDATE_CURRENT);

I then send the text, passing in the pending intent var:

sms.sendTextMessage("5555555555", null, "hello", pendingIntent, null);

I then attempt to make a basic broadcast receiver using the information I found in the nativescript docs which should just log something to the console when it recieves the expected data.

app.android.registerBroadcastReceiver(pendingIntent, function() {
        console.log("@@@@@ text sent @@@@@");
    });

The problem is: nothing happens. I'd expect to get ""@@@@@ text sent @@@@@" logged to the console. I've googled a lot and am thinking maybe I need to add something about this broadcast reciever in the manifest, or perhaps my implimentation is wrong somewhere, but this is my first crack at an android app and I'm at a bit of a loss. Any help would be appreciated.

Answer 1

I'm going to answer my own question here in case anyone else runs into this.

The code that worked is:

    var app = require("application");
    var utils = require("utils/utils");
    var context = utils.ad.getApplicationContext();
    var sms = android.telephony.SmsManager.getDefault();

    var SendMessages = {

        init: function() {
                var id = "messageSent";
                this.sendText(id, this.pendingIntent(id));
        },

        sendText: function(id, pendingIntent) {
            sms.sendTextMessage("5555555555", null, "Hello :)", pendingIntent, null);
            this.broadcastReceiver(id, function() {
                console.log("$$$$$ text sent $$$$$");
            });
        },

        pendingIntent: function(id) {
            var intent = new android.content.Intent(id);
            return android.app.PendingIntent.getBroadcast(context, 0, intent, 0);
        },

        broadcastReceiver: function(id, callback) {
            app.android.registerBroadcastReceiver(id, function() {
                callback();
            });
        }

    };

module.exports = SendMessages;

To explain: it seems as @Mike M mentioned each intent object needs some string as an id.

Then to make the "pendingIntent" object, again as @Mike M. mentioned I needed to hook to "getBroadcast" method, then I needed to pass pending intent the app context as the first argument, then 0, then the intent object with the id.

The pending intent then is receivable in a simple broadcast receiver function by simply passing the intent id as the first argument and the callback as the second. I've tested and it's working perfectly.