Some Oreo devices are not getting Push Notification

Question

Samsung S8/S5/J2/Note3 are getting Firebase Push Notification successfully either app is killed, in background or foreground,

but In

Answer 1

Source : Enable background services and Jobs (or FCM) in Chinese ROMs

Infinix Note 5 (Android One- Oreo) and Oppo F9(Oreo) are not getting push notification if app is killed, they work fine if app is in background or foreground.

Chinese ROMs using (Oxygen OS, MIUI etc) when the apps are swiped from the recent app tray your app gets terminated ( similar to Force Stop). And due to this every task running in the background like Services, Jobs gets killed with the app. Even High priority FCM doesn’t see the daylight in Chinese ROMs

Real time problems :

1) You can’t fetch location of the user. So, no app would work properly if it depends on real-time location

2) You can’t recevie the FCM high priority notifications

3) No time specific task/Job would execute if app is not in the tray and many more ….

Solution

user needs to enable auto start in settings for app to keep background service/Job running.By default it is off.To do this in some of the devices we can use,

Sample code

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Intent intent = new Intent();

        String manufacturer = android.os.Build.MANUFACTURER;

        switch (manufacturer) {

            case "xiaomi":
                intent.setComponent(new ComponentName("com.miui.securitycenter",
                        "com.miui.permcenter.autostart.AutoStartManagementActivity"));
                break;
            case "oppo":
                intent.setComponent(new ComponentName("com.coloros.safecenter",
                        "com.coloros.safecenter.permission.startup.StartupAppListActivity"));

                break;
            case "vivo":
                intent.setComponent(new ComponentName("com.vivo.permissionmanager",
                        "com.vivo.permissionmanager.activity.BgStartUpManagerActivity"));
                break;
        }

      List arrayList =  getPackageManager().queryIntentActivities(intent,
              PackageManager.MATCH_DEFAULT_ONLY);

        if (arrayList.size() > 0) {
            startActivity(intent);
        }
    }

}