Firebase Cloud Messaging Notification only shows when I open the "notification tab"

Question

So I got push-notifications working with Google's Firebase Cloud Messaging. The only problem now is that the notification doesn't show any alert, only if I pull down the notification drawer that I see it's there.

I've got this part of the code where I think that "popup" feature is added

public void displayNotification(String title, String body){
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mContext, Constants.CHANNEL_ID)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle(title)
                .setContentText(body);

        Intent intent = new Intent(mContext, MainActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(mContext,0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        mBuilder.setContentIntent(pendingIntent);
        NotificationManager mNotificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
        if(mNotificationManager != null) {
            mNotificationManager.notify(1, mBuilder.build());
        }

    }

Other problem I have is that when I click the notification, it opens the activity but doesn't delete the notification.

jackycflau · Accepted Answer · 2019-03-10T13:48:32.670

2

Foreground pop-up

Under the builder, you are required to set high or max priority as well as the default notification vibration / sound so that you can see the 'pop-up' window

.setPriority(NotificationCompat.PRIORITY_HIGH)
.setDefaults(NotificationCompat.DEFAULT_ALL);

Background pop-up

To achieve background pop-up, you need to fine-tune your FCM payload. If you have both data and notification in your payload, the pop up cannot be handled by your displayNotification method. You will need a data only payload.

Google has placed this behavior in the documentation. Reference - FCM for android: popup system notification when app is in background

AutoCancel

For your second issue, add the setAutoCancel in your builder

.setAutoCancel(true)

Extra note

For some devices like Xiaomi and Redmi, you need to go to Settings to enable floating notification

edited Mar 10 '19 at 13:48

answered Jul 10 '18 at 10:01

jackycflau

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It fixed the problem where the notification wasn't disappearing but the problem where it wasn't alerting still persists – Tiago Vitorino Jul 10 '18 at 10:19
you may be interested in the behavior of fcm in background or foreground: https://stackoverflow.com/questions/42315296/fcm-for-android-popup-system-notification-when-app-is-in-background – jackycflau Jul 10 '18 at 10:27
your payload has both notification and data? – jackycflau Jul 10 '18 at 10:28
@TiagoVitorino I have updated my answer, please check – jackycflau Jul 10 '18 at 10:47

Firebase Cloud Messaging Notification only shows when I open the "notification tab"

1 Answers1