Скачать или смотреть Steps to Implement Push Notifications in Android (Kotlin)

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🎙️ Intro
"Hi everyone! In this video, I’m going to show you how to implement push notifications in an Android app using Kotlin, Firebase Cloud Messaging, and also how to test it using Postman. Let’s get started!"

🎙️ Step 1: Firebase Setup
"First, go to Firebase Console and create a new project.
Then, add your Android app by entering the package name.
Download the google-services.json file and place it inside the app folder of your Android project.
Finally, enable Cloud Messaging in your Firebase project."

🎙️ Step 2: Add Dependencies
"Now, open your build.gradle file.
Add the Firebase Messaging dependency, and also apply the Google Services plugin.
This will allow our app to connect with Firebase."

🎙️ Step 3: Create Messaging Service
"Next, create a new Kotlin class called MyFirebaseMessagingService.
This will handle incoming notifications.
Here we override two methods:

onNewToken, which gives us the FCM device token,

and onMessageReceived, which triggers when a new push notification arrives.
Inside onMessageReceived, we build a notification and show it using NotificationManager."

🎙️ Step 4: Register Service in Manifest
"Don’t forget to register this service inside the AndroidManifest file with the Firebase Messaging intent filter."

🎙️ Step 5: Get FCM Token
"In your MainActivity, fetch the FCM token using FirebaseMessaging.getInstance().token.
This token is unique for each device and is required to send notifications."

🎙️ Step 6: Test with Postman
"Now let’s test it with Postman.
Create a POST request to https://fcm.googleapis.com/fcm/send
.
In the Headers section, add Content-Type as application/json and Authorization as your Firebase Server Key.
In the Body, add a JSON object with the device token, title, and message body.
Click Send, and boom! Your Android device should instantly receive the notification."