Android push notification GCM

Question

I am working on android GCM for my application to send push notification to users. And I am following this tutorial

http://www.androidhive.info/2012/10/android-push-notifications-using-google-cloud-messaging-gcm-php-and-mysql/

But in This tutorial its shown that we can send push notification to individual device. But I want to send push notification to all the users at once. So how can I implement this technique.

S. M. Sakil Imran S. M. Sakil Imran · Accepted Answer · 2013-09-03T12:01:05

I have already faced the same problem and solved it. To send push notification to all the users at once, you have to do all the things listed on the tutorial you've mentioned. But you have to change two files: index.php and send_message.php

In index.php:

a. Replace the JavaScript code with the following:

$(document).ready(function(){

});
function sendToAll(){
    var data = $("#sendtoall").serialize();
    $("#sendtoall").unbind('submit');               
    $.ajax({
        url: "send_message.php",
        type: 'GET',
        data: data,
        beforeSend: function() {

        },
        success: function(data, textStatus, xhr) {
              $('.txt_message').val("");
        },
        error: function(xhr, textStatus, errorThrown) {

        }
    });
    return false;
}

b. Replace the code inside body tag with the following (skipping first five lines):

<div class="container">
    <h1>No of Devices Registered: <?php echo $no_of_users; ?></h1>
    <hr/>
    <ul class="devices">
        <?php
        if ($no_of_users > 0) {
            ?>
            <li>
                <form id="sendtoall" name="" method="post" onsubmit="return sendToAll()">
                    <div class="send_container">                               
                        <textarea rows="3" name="message" cols="25" class="txt_message" placeholder="Type message here"></textarea>
                        <?php
                        while ($row = mysql_fetch_array($users)) {
                        ?>
                        <input type="hidden" name="regId[]" value="<?php echo $row["gcm_regid"]; ?>"/>
                        <?php
                        }
                        ?>
                        <input type="submit" class="send_btn" value="Send To All" onclick=""/>
                    </div>
                </form>
            </li>
            <?php
        } else { ?>
            <li>
                No Users Registered Yet!
            </li>
        <?php } ?>
    </ul>
</div>
<div class="clear"></div>

In send_message.php:

Replace the line:

$registatoin_ids = array($regId);

with

$registatoin_ids = $regId;

Android push notification GCM

4 Answers