2016-07-04 07:41:00 +00:00
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# Firebase Cloud Messaging (FCM)
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2016-06-22 12:54:20 +00:00
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FCM is just a demo of Android Application which implement Firebase Cloud Messaging. It made for Google I/O Extended 2016 Bangkok
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## Prerequisites
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2019-04-16 08:30:00 +00:00
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* Supported Android 4.1 or newer
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2019-04-16 07:55:49 +00:00
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* Android Studio 3.3.2 or higher
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2016-07-22 08:49:42 +00:00
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* google-services.json in app-level folder
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2016-06-22 12:54:20 +00:00
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## Features
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2016-07-03 18:38:21 +00:00
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* Subscribe and Unsubscribe with topics
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* Get token
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* Send message with payload both **notification** and **data**
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* Send message with **a token**, **token group**, **a topic**, **condition**
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* Handle message both **foreground** and **background**
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* Customize notification
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* Support notification channel for Android 0 or newer
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2016-06-22 12:54:20 +00:00
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## Limitation in the message payload
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* Notification : 2KB limit and a predefined set of user-visible keys
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* Data : 4KB of custom key-value pairs
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## Screenshots
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2016-07-04 07:44:28 +00:00
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<table width="100%">
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2016-06-22 12:54:20 +00:00
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<tr>
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2016-07-04 07:45:33 +00:00
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<th width="33%"><img src="https://cloud.githubusercontent.com/assets/1763410/16547014/9f81c04a-4187-11e6-936c-0d901d91b8e5.png"></th>
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<th width="33%"><img src="https://cloud.githubusercontent.com/assets/1763410/16553886/8f8af5da-41f5-11e6-85c4-cb6937c80bab.png"></th>
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<th width="33%"><img src="https://cloud.githubusercontent.com/assets/1763410/16553891/97fa1d18-41f5-11e6-9f53-e76a61e9b435.png"></th>
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2016-06-22 12:54:20 +00:00
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</tr>
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</table>
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2016-06-27 03:46:14 +00:00
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## Slide
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```FCM
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2016-06-23 17:48:08 +00:00
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https://docs.google.com/presentation/d/1HPLk1PXaGUjqTlPB6RHsgrTunJNo10kbGZ-JX_7JELw/edit?usp=sharing
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2016-06-22 12:54:20 +00:00
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```
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