Google Cloud Messaging with CCS and XMPP

A talk about the new features in Google Cloud Messaging

Transcript

1. Google Cloud Messaging
   Cloud Connection Server and XMPP
   

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2. Google Play Services
   ●
   This meeting is about Android 4.4
   ●
   But this talk is not :-)
   ●
   Google Play Services is all that's needed
   

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3. CCS
   ●
   Upstream messaging possible
   ●
   Permanent connection between servers
   – But Google keeps messages around a while
   ●
   XMPP instead of HTTP
   ●
   You cannot use it right away
   – You have to sign up for it
   

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4. Flow of Events
   

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5. Android Code
   

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6. Sample Message I
   

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7. Sample Message II
   

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8. Benefits
   ●
   Reuses Connection
   – Battery friendly
   ●
   More messages in a shorter timeframe
   ●
   Android Client easier to develop
   – You need not care about queuing
   – No need to check for network availability
   ●
   Notification cancellation
   

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9. Drawbacks
   ●
   XMPP is less known than HTTP
   ●
   Less information online about XMPP
   ●
   I have found only one maintained Java lib
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   Less information online about CCS
   ●
   Manual ACK / NACK handling
   ●
   Proxy servers can be an issue
   ●
   No Cloud Services support (as of yet)
   – Not even Google App Engine!
   

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10. Recommendation
    ●
    It's beta, so stay calm :-)
    ●
    Ideal for sending out many messages
    ●
    To a very large user base
    ●
    And for many return messages from device
    ●
    Do not trust the emulator!
    

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11. What else
    ●
    Github links:
    https://github.com/writtmeyer/gcm_sample
    https://github.com/writtmeyer/gcm_server
    ●
    Blog post in the next days on
    grokkingandroid.com
    ●
    A big thank you to Dennis Geurts!
    

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12. https://plus.google.com/+WolframRittmeyer
    https://www.twitter.com/RittmeyerW
    http://www.grokkingandroid.com
    http://www.grokkingandroid.com/gcm_ccs
    

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