Open activity on firebase notification received in foreground

Question

When my application is open and I receive a notification I want to be able to open the activity associated immediately without the need of the user to tap on the notification.

This question is very similar: Open app on firebase notification received (FCM)

But it opens the app when it is in background, I need to do it when my app is in foreground.

From the firebase documentation:

Notifications delivered when your app is in the background. In this case, the notification is delivered to the device’s system tray. A user tap on a notification opens the app launcher by default. Messages with both notification and data payload, both background and foreground. In this case, the notification is delivered to the device’s system tray, and the data payload is delivered in the extras of the intent of your launcher Activity.

This is my implmentation of onMessageReceived

@Override
    public void onMessageReceived(RemoteMessage remoteMessage) {

       // Check if message contains a data payload.
        if (remoteMessage.getData().size() > 0) {
            Log.d(TAG, "Message data payload: " + remoteMessage.getData());
        }

        // Check if message contains a notification payload.
        if (remoteMessage.getNotification() != null) {
            Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
            sendNotification( remoteMessage);              
        }     
    }

    /**
     * Create and show a simple notification containing the received FCM message.
     *
     * @param remoteMessage FCM message message received.
     */
    private void sendNotification(RemoteMessage remoteMessage) {
        Intent intent = new Intent(this, MyActivity.class);

        Map<String, String> hmap ;
        hmap = remoteMessage.getData();
        hmap.get("data_info");
        intent.putExtra("data_info", hmap.get("data_info"));
        intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);


        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
                PendingIntent.FLAG_ONE_SHOT);

    }

I am able to get the notification correctly but the activity only starts once I tap the notification on the system tray.

Is there a way to start the activity without tapping the notification while in foreground?

The method onMessageReceived() from the class MyFirebaseMessagingService that extends FirebaseMessagingService is getting called correctly while in foreground, but the activity is not getting started. I have also tried with the flag FLAG_ACTIVITY_NEW_TASK also with no luck. Thanks in advance.

Answer 1

You can achieve that registering a broadcast receiver in you foreground activity and sending a broadcast from your onReceiveMessage() method.

ForegroundActivity

mReceiver = new BroadcastReceiver() {
 @Override
 public void onReceive(Context context, Intent intent) {
     Intent myNewActivity = new Intent(this, MyActivity.class);
     startActivity(myNewActivity);
   }
 };

mIntentFilter=new IntentFilter("OPEN_NEW_ACTIVITY");

@Override
protected void onResume() {
     super.onResume();
     registerReceiver(mReceiver, mIntentFilter);
}



@Override
protected void onPause() {
     if(mReceiver != null) 
            unregisterReceiver(mReceiver);
            mReceiver = null;
     }
     super.onPause();
   }

FirebaseNotificationReceiver

@Override
    public void onMessageReceived(RemoteMessage remoteMessage) {

   // Check if message contains a data payload.
    if (remoteMessage.getData().size() > 0) {
        Log.d(TAG, "Message data payload: " + remoteMessage.getData());
    }

    // Check if message contains a notification payload.
    if (remoteMessage.getNotification() != null) {
        Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
        sendNotification( remoteMessage);  

        Intent broadcast = new Intent();
        broadcast.setAction("OPEN_NEW_ACTIVITY);
        sendBroadcast(broadcast);
    }     
}

You can add a check to know if the app is in foreground or not to choose between send a notification or send a broadcast.