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GCM with Pushbots
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- 2. About me Research Scholar Developercum Corporate Trainer at Xperia Technologies Pvt. Ltd. Workshop Event Organizer – National Android Development Challenge (NADC)
- 3. What we willbe discussing today. Google Cloud Messaging What is GCM? Why do we need GCM? How it is implemented ?
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- 5. GCM definition GCMstands for Google Cloud Messaging . It is a free service that allows developers to send data from third party servers to their applications running on android devices Handles queuing of messages and delivery to the target application running on the target device. Intended use is not to send huge amount of data to the client device
- 6. Things to keepin mind Application on the android device DOES NOT need to be running to receive messages. Requires user to set up a Google account on the device. It is purely a routing component There is no guaranteed delivery of messages to the device .
- 7. Focus of GCM Easeof use. No sign-up forms. No quotas. GCM stats are available through the Android Developer Console. Battery efficiency. Rich set of new APIs
- 8. Difference between GCMand C2DM Simple API Key from Google APIs console page. Sender id is the project id rather than email address Supports data in JSON format and plain text
- 9. Difference between GCMand C2DM Multicast message support Multiple senders Messages have time to live ( 0 ~ 4 weeks ) eg. Expiring invitations Payload up to 4kb
- 10. Why do weneed GCM?
- 11. The need touse GCM Client server architecture is the most common architecture . Most application do all the heavy lifting and processing at the servers and then use the processed data within the applications . Scalability & extensibility More computing power Background process polling server for information at regular intervals is a bad design Battery performance System resource usage ( memory , CPU ) Complicated coding
- 12. The need touse GCM Less coding required Not need to worry about queuing of messages Differed delivery Simpler application flow Application does not need to be running in the background for receiving data messages. Lower cost and better tracking than SMS.
- 13. How it isimplemented?
- 14. Major Components Your applicationserver GCM servers Mobile device
- 15. Typical sequence ofevents The application server sends a message to GCM servers. Google queues and stores the message in case the device is offline. When the device is online, Google sends the message to the device. On the device, the system broadcasts the message to the specified Android. This wakes the Android application up. The Android application processes the message
- 16. Minimum requirements (device side ) Android 2.2 + Android market place should be installed Emulator with Google APIs Internet connection Google account ( device version < 4.0.4 )
- 17. Minimum requirements (server side ) HTTPS application server that should be Able to communicate with your client. Able to fire off HTTP requests to the GCM server. Able to handle requests and queue data as needed. For example, it should be able to perform exponential back off. Able to store the user device registration id .
- 18. PushBots application Creating GCM Sender ID Creating GCMAPI Key Add API Key to your PushBots Applicati on Create your Android project Impleme nt PushBots framewor k Send your first Push
- 19. Snapshots 1 Creating GCMSender ID Sender ID
- 20. 2. Creating GCMAPI Key
- 21. 3. Add APIKey to your PushBots Application
- 22. 4. Create yourAndroid project
- 23. 5. Implement PushBotsframework
- 24. 6. Send yourfirst Push
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