Not receiving FCM messages when app is killed and in Optimised battery mode| OnePlus 5t |OnePlus 6 | Error broadcast intent callback: result=CANCELLED

Question

I'm trying to send FCM messages to my device. I receive them correctly when app is in background or foreground. However, when my app is killed i.e. when removed from recent apps, I don't receive notifications if it is in the default "Optimized" battery usage mode. When I set my app's battery mode to "Not optimized", I receive notifications correctly even when app is killed.

And yes, I've tried sending FCM messages and FCM notifications with "High" Priority but logcat on recieving meassge shows this:

Error broadcast intent callback: result=CANCELLED forIntent { act=com.google.android.c2dm.intent.RECEIVE pkg=com.flagg327.guicomaipu (has extras) }

All other apps (WhatsApp, Facebook etc.) on my device are in "Optimised" mode yet they receive push notifications even when they're killed.

I have tried installing signed apk version of my app still no response in background

Right now I have implemented a basic functionality

@Override
protected void onStart() {
    super.onStart();  
packageName = getApplication().getPackageName();
intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
pm = (PowerManager) 
getApplication().getSystemService(Context.POWER_SERVICE);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && 
!pm.isIgnoringBatteryOptimizations(packageName)) {

intent.setAction(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS);
    getApplication().startActivity(intent);
        }
        }

This basically takes the user to settings and forces him to disable optimisation but this is a bad approach how can we progamatically solve this.

I'm using OnePlus 5T (Android 8.1.0). Can anyone explain why is this happening in my app specifically?and how to add my app to whitelist

can this be implemented heres my code for data payload

JSONObject root = new JSONObject();

                    JSONObject data = new JSONObject();

                    data.put("type", type);
                    data.put("message", message);
                    data.put("id", pNumber);
                    data.put("count",count);
                    JSONObject android = new JSONObject();
                    android.put("priority","high");
                    root.put("android",android);
                    root.put("data", data);
                    root.put("to", "/topics/"+recipients);



                    String result = postToFCM(root.toString());

Any help will be apreciated...

OOS is incredibly aggressive when it comes to notifications, to the point where many people simply install LineageOS to avoid it. — TheWanderer, Sep 10 '18 at 17:41
Similar and possibly helpful [post](https://stackoverflow.com/q/39504805/4625829) — AL., Sep 11 '18 at 03:27
no I have tried all the solutions mentioned in the above post doesn't works for me :( — Khush Chandawat, Sep 11 '18 at 13:16

score 0 · Answer 1 · answered Sep 10 '18 at 17:44

0

Here is a solution to your problem.

Go to your phone's Settings.
Tap on Apps and then Application List.
Scroll down to locate your app and tap on it.
Tap on Notifications and ensure that it is enabled.
In the same screen, tap on Battery.
Tap on Battery Optimization.
Scroll down to locate your app and tap on it.
Select Don't Optimize and tap on Done.

answered Sep 10 '18 at 17:44

Anubhav Gupta

2,492
14
27

1

Sorry looking for a programmatic approach please answer keeping developers point of view. – Khush Chandawat Sep 10 '18 at 17:59
there is no programmatic way possible to do so – Anubhav Gupta Sep 10 '18 at 18:00
can I whitelist the application so that it can run in background like whatsapp even when optimised? – Khush Chandawat Sep 10 '18 at 18:09
refer this https://stackoverflow.com/questions/19345008/need-code-example-on-how-to-run-an-android-service-forever-in-the-background-eve – Anubhav Gupta Sep 10 '18 at 18:13
alarm manager gets triggered in every periodic interval but, I'm looking for asynchronous approach i.e. whenever a notification arrives it needs to be live handled – Khush Chandawat Sep 10 '18 at 18:30

Not receiving FCM messages when app is killed and in Optimised battery mode| OnePlus 5t |OnePlus 6 | Error broadcast intent callback: result=CANCELLED

1 Answers1