Notification With Oreo Support

private void displayNotification(RemoteMessage.Notification notification) {
        Random rnd = new Random();
        Random rnd2 = new Random();
        int r = rnd.nextInt();
        int r2 = rnd2.nextInt();
        int id = (r * r2)+r;
        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        String NOTIFICATION_CHANNEL_ID = "102356";
        Intent intent = new Intent(this, MainActivity.class); //Set the activity
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,PendingIntent.FLAG_ONE_SHOT);
        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            @SuppressLint("WrongConstant") NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "My Notifications", NotificationManager.IMPORTANCE_MAX);


            notificationChannel.setDescription("Channel description");
            notificationChannel.enableLights(true);
            notificationChannel.setLightColor(Color.RED);
            notificationChannel.setVibrationPattern(new long[]{0, 1000, 500, 1000});
            notificationChannel.enableVibration(true);
            notificationManager.createNotificationChannel(notificationChannel);


            NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);

            notificationBuilder.setAutoCancel(true)
                    .setDefaults(Notification.DEFAULT_ALL)
                    .setWhen(System.currentTimeMillis())
                    .setSmallIcon(R.drawable.myicon)
                    .setTicker("ApptojoBusiness pr the name of the app")
                    .setContentIntent(pendingIntent)
                    .setContentTitle(notification.getTitle())
                    .setContentText(notification.getBody())
                    .setContentInfo(notification.getBody());

            notificationManager.notify(id, notificationBuilder.build());
        }else{

            NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                    .setSmallIcon(R.drawable.myicon)
                    .setContentTitle(notification.getTitle())
                    .setContentText(notification.getBody())
                    .setAutoCancel(true)
                    .setSound(defaultSoundUri)
                    .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
                    .setContentIntent(pendingIntent);
            NotificationManager notificationManager2 = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            notificationManager2.notify(id, notificationBuilder.build());
        }





    }