在Android上未调用onMessageReceived

Question

Please note that there are NO basic issues with the client code like service registration or token issuance issue.

I am using the FCM REST API to send messaged from my app server. The requirement is to show a dialog when the push messages comes and app is in foreground or if the app is in background, just display a notification.

When I use the simple notification payload, everything works fine as expected. But as soon as my message contains a data payload too (in addition to the notification payload), none of the callbacks on my app gets called irrespective of whether the app is in foreground or background.

From documentation, it sounds like message with both kind of payloads should still work - FireBase Android doc .

To summarise this works -

{  
   "to":"verylongtoken",
   "token":"verylongtoken",
   "notification":{  
      "title":"title",
      "body":"body"
   },
   "priority":"high"
}

But this does not -

{  
   "to":"verylongtoken",
   "token":"verylongtoken",
   "notification":{  
      "title":"title",
      "body":"body"
   },
   "data":{  
      "message_type":"1"
   },
   "priority":"high"
}

Sounds really silly, but what am i missing ?

Answer 1

From FCM official site: https://firebase.google.com/docs/cloud-messaging/concept-options

If you want to set priority for a message then change your json format from

{  
   "to":"verylongtoken",
   "token":"verylongtoken",
   "notification":{  
      "title":"title",
      "body":"body"
   },
   "data":{  
      "message_type":"1"
   },
   "priority":"high"
}

to

{  
   "to":"verylongtoken",
   "token":"verylongtoken",
   "notification":{  
      "title":"title",
      "body":"body"
   },
   "data":{  
      "message_type":"1"
   },
   "android":{
      "priority":"high"
  }
}