Android - Steps to run GCM Demo

I would insist to first go through Android Docs and then try to implement using below steps.

Make sure you have installed Apache Tomcat and Apache Ant.

Steps:-

1.) Make sure you have dowloaded support library from SDK Manager -> "Google Cloud Messaging             for Android Library".
2.) This will add "gcm" folder with demo application in your SDK folder.
3.) So go to "your_sdk\extras\google\gcm\samples\gcm-demo-server\WebContent\WEB-INF\classes\api.key". And here enter your API-KEY that you got from registering to
    Google Console.

4.)

•     Now you have to set System variables for Ant upto its "bin". So, edit Path and append it at the end using a semi-colon - "your_path\apache-ant-1.8.4\bin".
•     Now set the user variable for "JAVA_HOME" - "C:\Program Files\Java\jdk1.6.0_23"(without "bin") and Ant upto its "bin" folder. Go to cmd and type ant.

Buildfile: build.xml does not exist!
Build failed

If you get above error means your Ant is working fine.

5.) Now go to "your_sdk\extras\google\gcm\samples\gcm-demo-server" and type ant.

If successful you will see output like,


init:
    [mkdir] Created dir: your_sdk\extras\google\gcm\samples\gcm-demo-
server\build\classes
    [mkdir] Created dir: your_sdk\extras\google\gcm\samples\gcm-demo-
server\dist

compile:
    [javac] Compiling 7 source files to your_sdk\extras\google\gcm\sa
mples\gcm-demo-server\build\classes

war:
      [war] Building war: your_sdk\extras\google\gcm\samples\gcm-demo
-server\dist\gcm-demo.war

dist:

BUILD SUCCESSFUL
Total time: 0 seconds


Also you will see a "dist" folder created with "gcm-demo.war" file.

6.) Now start your apache tomcat server and check that its working fine by running it using "http://your_host_ip:8080/"
7.) If its working fine go to "C:\Program Files\Apache Software Foundation\Tomcat 7.0\webapps\copy gcm-demo.war" here.
8.) Restart your Server and open the gcm-demo in browser - "http://your_host_ip:8080/gcm-demo/"

You will see result as,

Unregistered device #0
No devices registered!

So, server side is completed now.


9.) Now, import "gcm-demo-client" Application from "your_sdk\extras\google\gcm\samples\gcm-demo-client"
10.) Open "CommonUtilities.java" - here you need to give
SERVER_URL="http://your_host_ip/gcm-demo/" and
SENDER_ID="sender id you got from google console url".
11.) Build "gcm-demo-client" into your Android Device to register to your Server

Succesfully sent message to device #0
1 device(s) registered!

You will see above output if successfully registered will a send button.

12.) Press Send Button to get Notification on your device.

You can find the sorce demo from github, it also include the gcm-demo.war file that you have to deploy. The things that are required to be change are,

1.) API Key,
2.) SENDER_ID
3.) SERVER_URL

Thanks :)