Implementing Push Notifications in Android

Push notifications are used to send alerts or updates to users even when the app is not actively running. Firebase Cloud Messaging (FCM) is the most commonly used service for this in Android.

Firebase Push Notification Example:

    FirebaseMessaging.getInstance().getToken()
        .addOnCompleteListener(task -> {
            if (!task.isSuccessful()) {
                return;
            }
            String token = task.getResult();
            // Send token to your server
        });
  

Push notifications can be used for delivering important updates, marketing campaigns, and user engagement.