Notification not showing

Chung_Xa · February 21, 2024, 10:05am

I’m implementing Defold Push notification for Android, however when testing I see that the listener got messages (payload is the data) but the notification popup is not showing. What did I miss to have it showing?

Here is my curl command for testing:

./curl  -X POST  -H "Content-type: application/json"  -H 'Authorization: key="[SERVER_KEY]"' -d '{\"registration_ids\":[\"[MY_TOKEN]\"],\"notification\":{\"title\":\"Kỳ Hoàng\",\"body\":\"Hello\"},\"data\":{\"alert\":\"Alert!\",\"title\":\"Ky Hoang\",\"body\":\"Test\"} }' https://fcm.googleapis.com/fcm/send

britzl · February 21, 2024, 1:11pm

If I recall correctly the notification will only show if the game is not in the foreground. If the game is running you’ll get the callback but no notification. Could this be the case?

Chung_Xa · February 21, 2024, 2:03pm

I checked both cases, when app opening and when app not running. There were no notifications in both.

I recently known a reason. There are configs in game.project

[android]
push_field_title = title
push_field_text = body

It seems having these configs helps. But there’s another strange thing, after a few notifications showed, there’s no more appearing… though I used the same command.

britzl · February 21, 2024, 2:06pm

Could it be something which the OS or the GCP backend throttles?

Chung_Xa · February 21, 2024, 2:21pm

I don’t think so, I just tested a few and when the app in foreground I can see the messages deliveried (via listener), the send result is also showing it succeeded.

I think for some reasons the notification is just not showing, or the background service dropped it.

I have an app (not built by Defold) and notifications always showing when I do testing. But as I’m not familiar with native code so I have no ideas what is differrent

Chung_Xa · February 21, 2024, 2:37pm

Somehows I just reinstalled the app then it’s working again.

There’s another reason for not showing notifications I just found that is having notification field as in my curl command above will make it not showing

Chung_Xa · February 22, 2024, 5:44am

After taking a look at the extension code, I see there are something need to be considered:

The title & body should be taken from notification field instead of data field.
Support Request runtime notification permission on Android 13+

For the notification not showing issue, I think I got the way to avoid it. We could close this thread for now

britzl · February 22, 2024, 6:45am

Are you referring to this?

github.com

defold/extension-push/blob/master/extension-push/src/java/com/defold/push/FirebaseMessagingService.java#L24

    
      
          }
          
          
@Override
          public void onMessageReceived(RemoteMessage remoteMessage) {
              super.onMessageReceived(remoteMessage);
              Log.d(TAG, "From: " + remoteMessage.getFrom());
          
          
    // Check if message contains a data payload.
              if (remoteMessage.getData().size() > 0) {
                  Log.d(TAG, "Message data payload: " + remoteMessage.getData());
                  Push.getInstance().showNotification(this, remoteMessage.getData());
              }
          }
          
          
/**
           * Called if InstanceID token is updated. This may occur if the security of
           * the previous token had been compromised. Note that this is called when the InstanceID token
           * is initially generated so this is where you would retrieve the token.
           */
          @Override
          public void onNewToken(String token) {

There is an extension that you can use for this:

Chung_Xa · February 22, 2024, 8:20am

Yes, that is. However, after having closer look, I see it’s on a purpose. Having unstandard notification message will help to manually show a custom notification
firebase-android-sdk/firebase-messaging/src/main/java/com/google/firebase/messaging/FirebaseMessagingService.java at master · firebase/firebase-android-sdk (github.com)

Thanks, I’ll try that once I do testing on Android 13+ devices.