Android - Notification received but no notification popup (Foreground)

Question

My app is receiving the notification correctly but is failing to show a notification pop up with the received info (If the app is opened).

N.B.: In case if the app is in the background, the notifications are displayed without any issue.

My Code:

I receive the notification in this method:

@Override
public void onMessageReceived(RemoteMessage remoteMessage)
{
    Log.d(TAG, "From: " + remoteMessage.getFrom());

    if(remoteMessage!=null)
    {
        String id = null;
        String title = null;
        String body = null;
        String launchPage = null;

        if(remoteMessage.getNotification()!=null)
        {
            title = remoteMessage.getNotification().getTitle();
            body = remoteMessage.getNotification().getBody();
        }

        if(remoteMessage.getMessageId()!=null)
        {
            id = remoteMessage.getMessageId();
        }

        Log.i(TAG, "id: " + id);
        Log.i(TAG, "title: "+ title);
        Log.i(TAG, "body: " + body);

        int notif_id = 0;

        sendNotification(notif_id, title, body, launchPage);
    }
}

then it calls this one (which is supposed to show the notification as i understand):

private void sendNotification(int id, String title, String messageBody, String launchPage)

    Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                    .setSmallIcon(android.R.drawable.stat_sys_download)
                    .setContentTitle("OMR - "+title)
                    .setContentText(messageBody)
                    .setAutoCancel(true)
                    .setSound(defaultSoundUri)
                    .setColor(ContextCompat.getColor(this, R.color.colorPrimary))
                    .setChannelId(CHANNEL_ID);

    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        createChannel(notificationManager, CHANNEL_ID);
    }

    Toast.makeText(this, "Received a notif...", Toast.LENGTH_SHORT).show();

    //this line is not showing a notification
    notificationManager.notify(id, notificationBuilder.build());
}

Firebase notification

{
"data": {
    "message": "data payload only used to force using OnMessageReceived() if in BACKGROUND",
    "notif_id": 1
},
"to" : "e04OAVaRw30:APA91bGyv5_tt4IWRkurjlqkqNlCxTBV8oRne18tQ5puniHPItOMgg11kdt56t5jfZnasb4Ms-tH9xUgWQhHy2eM487llRtlM9_V_PoWJI9KSr6XgCaysiDyS",
"notification": {
    "title": "Notification",
    "body": "This is Notification 2",
    "sound":"default"
}

}

Result

the notification is built correctly
sound played correctly
notif put in system tray
BUT no notification popup appears (i have to show a custom dialog for that)

My Problem lies in this specific line

notificationManager.notify(id, notificationBuilder.build());

which is failing to show the notification

Update i have read more about Android notifications in

https://developer.android.com/guide/topics/ui/notifiers/notifications

and found out that notifications only show in the notification drawer without popping up (as Heads-up notifications).

and according to this question, i can force the notifications to show as Heads-up notifications if i added a high priority to them. Unfortunately this is not working either.

https://stackoverflow.com/questions/48918490/app-not-showing-notification-receiving-fcm-when-the-app-is-open check this link — Rahul Arora, Feb 20 '19 at 13:15
Need `onMessageReceived` code as well. Most probably `sendNotification` isn't getting called due to some condition in `onMessageReceived`. — Ranjan, Feb 20 '19 at 13:17
Check for Payload and the code in `onMessageReceived(RemoteMessage remoteMessage)`. You might getting a values that doesn't exist in Payload. — Abid Khan, Feb 20 '19 at 13:23
I am not using the data payload at all, and the content is received well in the sendNotification() method — SoliQuiD, Feb 20 '19 at 13:27
Put a break point on `onMessageReceived(RemoteMessage remoteMessage)` method and debug to see if there is any error. — Abid Khan, Feb 20 '19 at 13:30
In addition to @Shivam Yadav answer, Remember not to send notification key if you want call in onMessageReceived. — Priya Yadav, Feb 26 '19 at 19:13
Please follow these instructions https://stackoverflow.com/a/51501821 — Raj Kumar, Jul 15 '21 at 04:40

score 7 · Answer 1 · answered Feb 20 '19 at 13:50

7

This image explains it all if you are using FCM.

answered Feb 20 '19 at 13:50

Shivam Yadav

958
11
23

thank you, ur chart is very enlightening. however, i am using both payloads in the foreground and im having my notif sent to system tray. – SoliQuiD Feb 20 '19 at 13:54
2

@SoliQuiD Yeah, but you will get the call in onMessageReceived also then it's upto you how do you handle it. – Shivam Yadav Feb 21 '19 at 07:58

score 0 · Answer 2 · answered Apr 30 '20 at 04:46

0

Well, in my case some of the data I'm passing into the message body is null in the onReceived.

Fixed that and my notification popup was showing again

answered Apr 30 '20 at 04:46

HUSSENI ABDULHAKEEM

614
7
9

score 0 · Answer 3 · answered Feb 03 '23 at 14:49

0

Change

val notificationManager = packageContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

to

val notificationManager = NotificationManagerCompat.from(packageContext.applicationContext)

helps to me

answered Feb 03 '23 at 14:49

pirogtm

90
7

Android - Notification received but no notification popup (Foreground)

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