Tinkering with Firebase: Notifications

Here are quick steps/tips to integrate Firebase notifications in your client app:

  • AndroidManifest :

<service android:name=".MyFirebaseMessagingService"> <intent-filter> <action android:name="com.google.firebase.MESSAGING_EVENT"/> </intent-filter> </service> <service android:name=".MyFirebaseInstanceIdService"> <intent-filter> <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/> </intent-filter> </service> </application>
  • app/build.gradle:
dependencies {
    compile 'com.google.firebase:firebase-messaging:9.0.2'}

//Make sure to apply it at the end of the file
apply plugin: 'com.google.gms.google-services'
  • Project level build.gradle:
dependencies {
    classpath 'com.google.gms:google-services:3.0.0'
  • New Classes:
    • class MyFirebaseMessagingService extends FirebaseMessagingService
      • This is where notifications rendering is handled.

      • Method responsible for message handling: 

      @Overridepublic void onMessageReceived(RemoteMessage remoteMessage) {}

    • class MyFirebaseInstanceIdService extends FirebaseInstanceIdService

      • This class is useful in getting the device token. This token is used if you want to send message to that particular device.
      • This token can be collected: FirebaseInstanceId.getInstance().getToken() during app initialization.

  • Side Notes:
    • You app should be signed setup for using Firebase by generating and copying google-services.json under your app/ folder.
    • You'll get opportunity to download google-services.json while configuring your Firebase Notifications via Firebase Console.
    • New SHA can be added from Setting tabs under chosen project.

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