Push Notification - Android

Step by step using drupal 
http://www.codeproject.com/Articles/715415/Sending-Push-Notifications-from-a-Drupal-site



Notification are sent via Google Cloud Messaging (GCM) 

Steps: 

1. Setting up Google Cloud Messaging
2. Push Configuration in ACS Console
3. CloudPush Module Implementation
4. Retrieve Device Token
5. Cloud User Login
6. Subscribe a Channel

1. Setting up GCM 
- create Google API project in developer console
- https://developers.google.com/mobile/add
  enable GCM service for your app (require app name and package name)
- obtain the Server API key and Sender ID
- download configuration file (google-services.json) and copy & paste to app/ or mobile/ module directory in Android project
- In developer console, go to app > Services & APIs > link SenderID (copy & paste the server API key)

2. Push Configuration in ACS Console
- login to Appcelerator dashboard
- select Apps from pull-down menu
- select "push notification" on left sidebar
- select "Android Push" and enter the API Key and SenderID obtained in Step 1

3. CloudPush Module Implementation
- open project in Appcelerator Studio
- add module ti.cloudpush, ti.cloud
- edit tiapp.xml to add property "acs-push-type", "acs-push-type-development", "acs-push-type-production" and set its value to gcm

Remark: If got permission error, make sure proper permission has been added in tiapp.xml: 

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> 

<uses-permission android:name="android.permission.READ_PHONE_STATE" /> 

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 

<uses-permission android:name="android.permission.INTERNET" /> 

<uses-permission android:name="android.permission.VIBRATE" /> 

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 

4. Retrieve Device Token
- add code in project to retrieve device token (utility/PushNotificationConfig)