Google Cloud Messaging (GCM) Demo

This simple demo was created to show how to use Google Cloud Messaging via HTTP.

Steps to reuse this demo

• Visit http://developer.android.com/google/gcm/gs.html and follow the steps to activate GCM, you can stop following that guide once you have a Project ID and an API Key.
• Create a MySQL database named 'gcm' with a table named 'users'
  • The 'users' table will have one field named 'id' of type TEXT
  • Be sure to set the username and password so the script can access the database in /GCM_PHP/config.php
  • [Optional] If you need to change the name of the database this can be done in /GCM_PHP/config.php
• Open /GCM_PHP/gcm_helper.php find the 'sendGCM' function near the bottom and enter your API Key.

$apiKey = "Your API Key";

• Copy the /GCM_PHP folder to your server's root web directory.

• Open /Android/src/com/example/gcmdemo/Globals.java and update the following variables with your server domain and your Project ID.

public static final String GCM_SENDER_ID = "Your Project ID";
private static final String SERVER_URL = "http://your_server_domain.com/";

• Import the Android project into eclipse and install on a device.
• Click the register button, if all went well you will see a long user id appear in the TextView above
• Enter some text in the EditText and hit the send button, you should see a notification appear with the text you entered.
• To confirm the message came from your server install on a seconde device, when a message is sent, it will be received by all devices.

NOTE: If you find any issues with these instructions feel free to comment or open an issue.