FCM notification message are not received in android Oreo version?

Question

I have send FCM notification from server to users. It works fine(until api 25) but in Oreo when the application have not in background(services are closed) (or) completely close

Answer 1

  notification = new NotificationCompat.Builder(this, ANDROID_CHANNEL_ID)
                    .setSmallIcon(R.drawable.ic_small_logo)
                    .setLargeIcon(picture)
                    .setContentTitle("Title")
                    .setContentText("Body")
                    .setContentIntent(pendingIntent)
                    .setAutoCancel(true)
                    .build();

• ANDROID_CHANNEL_ID = "CHANNEL_ID"
• PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
• intent = new Intent(getApplicationContext(), HomeActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);