ID Android TechTalk Series #6 : Google Service and Gradle - Andrew Kurniadi

1. Firebase
Cloud Messaging &
Authentication
Andrew Kurniadi, GDE

2. GCM

3. “a free service that enables developers to send
messages between servers and client apps. This
includes downstream messages from servers to
client apps, and upstream messages from client
apps to servers.”

4. GCM == FCM ?

5. Why FCM?
● Registration and subscription retry logic handled by FCM
SDK
● GCM will not get any new features
● Google ❤ ❤ ❤ Firebase

6. Message Components
● Target
● Options
● Payload
● Priority

7. Target
{
"to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification" : {
"body" : "Hello World. This is me Andrew",
"title" : "Hello World",
"icon" : "myicon"
}
}

8. Payload
{
"to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"notification" : {
"body" : "Hello World. This is me Andrew",
"title" : "Hello World",
"icon" : "myicon"
},
"data" : {
"City" : "Jakarta",
"Provider" : "Cinema21"
}
}

9. 2KB
Notification Limit

10. 4KB
Data Limit

11. Common Message Options
● Collapsible Messages
○ Chat Messages
○ Important message
● Non-Collapsible Messages
○ Send-to-sync
○ Ping

12. Priority
{
"to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
"priority" : "normal",
"notification" : {
"body" : "Hello World. This is me Andrew",
"title" : "Hello World",
"icon" : "myicon"
}
}

13. Do I need to migrate from GCM?
● Google will continue to support GCM
● No new Client-Side feature will be added to GCM

14. Services
<service
// You only need to have this service if you want to handle the payload manually
android:name=".MyFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
<service
// Extends FirebaseInstanceIdService
android:name=".MyFirebaseInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>

15. FirebaseInstanceIdService
@Override
public void onTokenRefresh() {
// Get updated InstanceID token.
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
Log.d(TAG, "Refreshed token: " + refreshedToken);
// TODO: Implement this method to send any registration to your app's
servers.
sendRegistrationToServer(refreshedToken);
}

16. FirebaseMessagingService
● Handle background messages manually
● Handle data payload
● Send upstream messages
● Receive message in foregrounded app

17. Code Demo

18. Firebase Authentication

19. How does it work?

20. Supported Authentication Method
● Popular Services (Google, Facebook, Twitter, Github)
● Email & Password
● Anonymous Login
● Custom Backend Auth

21. FirebaseUI Auth
● Drop-In solution
● Customizable

22. Firebase Authentication SDK
● Implement Custom Flow
● More Work

23. Terima Kasih