Introduction to Firebase Notifications

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1. Firebase Notifications wasabeef shibuya.apk #8 at Google Japan

2. About me Daichi Furiya wasabeef @wasabeef_jp CyberAgent, Inc.

3. Firebase

4. Firebase https://firebase.google.com/

5. Analytics

6. Crash Reporting

7. Notifications

8. Firebase Notifications

9. Why?

10. Create Android app

11. Create Android app

12. Create Android app

13. Dependencies dependencies { // ... compile 'com.google.firebase:firebase-messaging:9.0.2' }

14. FirebaseMessagingService public class MyMessagingService extends FirebaseMessagingService { @Override public void

    onMessageReceived(RemoteMessage msg) { sendNotification(msg.getNotification().getBody()); } private void sendNotification(String body) { // NotificationManager#notify } }

15. FirebaseInstancedIdService public class MyIdService extends FirebaseInstanceIdService { @Override public void

    onTokenRefresh() { sendRegistrationToServer(refreshedToken); } private void sendRegistrationToServer(String token) { // send to your server } }

16. Topic findViewById(R.id.button).setOnClickListener(v -> { FirebaseMessaging.getInstance() .subscribeToTopic("mytopic"); // FirebaseMessaging.getInstance() .unsubscribeFromTopic("mytopic"); });

17. Compose message

18. Status

19. Conclusion

20. Thank you. twitter.com/wasabeef_jp wasabeef.jp github.com/wasabeef