GCM Technology for Android
- 3. Introduction C2DM Technology C2DM Advantages&Disadvantages GCM Definition GCM characteristics GCM Working Summary References
- 4. POLL AND PUSH NOTIFICATIONS Poll :- Application contact cloud to check new message Simple to implement Device periodically ask server for new data Used widely where the content changes continuously Disadvantage :- Extra Network Usages Reduced Battery life Server/Cloud App / Device
- 5. Push :-It defines type of internet based communication in which Server contact Application or device whenever new message is available Advantages :- Reduce extra network uses Consumes less battery Harder to implement Server/Cloud App / Device
- 6. Stands for Cloud to Device Messaging Used to send message from cloud to device or application Support Push Notification C2DM retired and It’s time to GCM (Google Cloud Messaging) Part of Google API
- 7. App Server C2DM Server App / Device
- 8. Advantages : Using C2DM Developers can develop more productive apps C2DM is connected to cloud so developers can get benefits of cloud computing in their apps Disadvantage : Internet connectivity is required Limited message size
- 10. GCM (Google Cloud Messaging) is a free service that helps developers send data from servers to their Android applications on Android devices. Lightweight message to applications telling that there is new data to be fetched from the server or a message containing up to 4kb of payload data (e.g: instant messaging apps).
- 11. ● Allows 3rd-party application servers to send messages to their Android applications. ● GCM makes no guarantees about delivery or the order of messages. ● Application on an Android device doesn't need to be running to receive messages. ● Uses an existing connection for Google services. For pre-4.0devices, this requires users to set up their Google account on their mobile devices.
- 12. GCM ConnectionServer Client App App Server Google server sending messages between the app server and the client app Client app with GCM- enabled communicate with your app server An app server that you write as part of implementing GCM. This server sends data to a client app using GCM connection server. Component Discription
- 13. Google migrated its products like : Blogger to Google Blogs Picasa to Google Image AdMob to Google AdMob Android marketplace to Google play So It’s time to C2DM to GCM Overcome disadvantages of C2DM
- 14. • Android 2.2 + • Android market place should be installed • Emulator with Google APIs • Internet connection • Google account ( device version < 4.0.4 )
- 15. App Server GCM Server App / Device
- 16. HOW GCM WORKS (contd.) The Three Components of GCM 1)Mobile Device: The device that is running an Android applica tion that uses GCM. 2) 3rd-party Application Server 3) GCM Servers 1) Your application attempts to register with the Google Cloud messaging (GCM) servers..
- 17. 5) The AirBop servers send the message to GCM using t he registration Id to target the app and device AirBop delivers the message to the GCM servers along with th e registration Ids of registered clients. 6) GCM sends the message to the apps and devices tha t match the registration Id(s). 4) You compose a message on the AirBop website 2) GCM registers your device and generates a registrati on Id for your application. 3) Your app sends the registration Id (plus optional addi tional information) to the AirBop servers.
- 18. 7) Your app opens the message and handles the data appr opriately. 8) The message can be sent to as many devices that have installed your app and registered with the server. Of course in a real situation your message will probably be deliv ered to tens of thousands of devices not just on e or two.
- 19. Google Play : Google play uses GCM to install requested android apps from Google play official site. (http://play.google.com) Google play android app uses GCM to receive requested apps from google play
- 20. Message Multicasting for News Multiple Senders for Social Updates Time to Live for Events and Promos Messages with Payload for IM
- 21. Thank you for your time.