Android Push Notifications implementation made easy with Bloomreach

Aziz — Tue, 30 Dec 2025 03:01:19 +0000

Introduction

Push notifications help your app engage users effectively. This guide explains how to implement push notifications on Android using Bloomreach(formerly Exponea) from scratch to a working feature.

Prerequisites

Android app using Kotlin
Firebase Cloud Messaging (FCM) configured
Bloomreach account with push enabled
Basic understanding of Android app lifecycle

High Level Architecture

App registers with FCM and obtains a device token
Token is sent to Bloomreach SDK
Bloomreach sends push campaigns via FCM
FCM delivers message to device
App displays notification

Firebase Setup

Add Firebase to your project via Firebase Console.
Place google-services.json in your app/ folder.
Add dependencies in build.gradle:

implementation platform('com.google.firebase:firebase-bom:33.0.0')
implementation 'com.google.firebase:firebase-messaging-ktx'

Apply Google services plugin:

plugins {
  id 'com.google.gms.google-services'
}

Integrating the Bloomreach SDK(formerly Exponea)

Step 1: Add Exponea SDK

implementation("com.exponea.sdk:sdk:4.8.1")

Step 2: Initialize SDK

Obtain projectToken, authorization, and baseURL from Bloomreach Engagement portal under Project Settings > Access Management > API
Ensure tracking consent is obtained before initialization

val configuration = ExponeaConfiguration()
configuration.authorization = "Token YOUR_API_KEY"
configuration.projectToken = "YOUR_PROJECT_TOKEN"
configuration.baseURL = "https://api.exponea.com"
Exponea.init(this, configuration)

Step 3: Place SDK Initialization

In your Application subclass onCreate() method:

class MyApplication : Application() {
  override fun onCreate() {
  super.onCreate()

  val configuration = ExponeaConfiguration()
  configuration.authorization = "Token YOUR_API_KEY"
  configuration.projectToken = "YOUR_PROJECT_TOKEN"
  configuration.baseURL = "https://api.exponea.com"

  Exponea.init(this, configuration)
  }
}

<application android:name=".MyApplication">...</application>

Push Notifications Setup

Enable Push Notifications

Bloomreach Engagement sends notifications via scenarios.
Notifications can be standard alerts or silent for background tasks. Implement Firebase Messaging Service

import android.app.NotificationManager
import android.content.Context
import com.exponea.sdk.Exponea
import com.google.firebase.messaging.FirebaseMessagingService
import com.google.firebase.messaging.RemoteMessage

class MyFirebaseMessagingService: FirebaseMessagingService() {
  private val notificationManager by lazy {
    getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
  }

  override fun onMessageReceived(message: RemoteMessage) {
    super.onMessageReceived(message)
    if (!Exponea.handleRemoteMessage(applicationContext, message.data, notificationManager)) {
    // message from another provider
    }
  }

  override fun onNewToken(token: String) {
    super.onNewToken(token)
    Exponea.handleNewToken(applicationContext, token)
  }
}

<service android:name="MyFirebaseMessagingService" android:exported="false">
  <intent-filter>
    <action android:name="com.google.firebase.MESSAGING_EVENT" />
  </intent-filter>
</service>

Configure FCM in Bloomreach

Create a service account in Google Cloud and generate a private key
In Bloomreach Engagement, add Firebase Cloud Messaging integration using the JSON key

Select the integration in Project Settings > Channels > Push Notifications > Firebase Cloud Messaging Integration

After setup, your app can receive push notifications via Bloomreach and track tokens automatically

Forem: Aziz