Java – Swipe application background service stopped on Chinese phones

I was looking for an answer to this question about Chinese phones (Oppo, Huawei, Xiaomi, Vivo, etc.) where background services stop working when the app swipes up (closes).

Most of the solutions are:

1. Include START_STICKY and start the service using AlarmManager.
2. Programmatically direct the user to the Autostart Manager to enable the app by the user.
3. Manually exclude my app from battery saving mode or treat my app as protected.

My question is, how can an app like Whatsapp still receive messages or notifications or even swipe up?
Also, the solutions mentioned in 1. and 2. don’t work after the phone restarts, but how can Whatsapp still get a message?
I have tested Samsung devices and even swiping up the apps they run background services without problems.
Has anyone encountered the same problem with a Chinese phone?

try {
            Intent intent = new Intent();
            String manufacturer = android.os.Build.MANUFACTURER;
            if ("xiaomi".equalsIgnoreCase(manufacturer)) {
                intent.setComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity"));
            } else if ("oppo".equalsIgnoreCase(manufacturer)) {
                intent.setComponent(new ComponentName("com.coloros.safecenter", "com.coloros.safecenter.permission.startup.StartupAppListActivity"));
            } else if ("vivo".equalsIgnoreCase(manufacturer)) {
                intent.setComponent(new ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.BgStartUpManagerActivity"));
            } else if ("oneplus".equalsIgnoreCase(manufacturer)) {
                intent.setComponent(new ComponentName("com.oneplus.security", "com.oneplus.security.chainlaunch.view.ChainLaunchAppListAct‌​ivity"));
            } else if ("Letv".equalsIgnoreCase(manufacturer)) {
                intent.setComponent(new ComponentName("com.letv.android.letvsafe", "com.letv.android.letvsafe.AutobootManageActivity"));
            } else if ("Honor".equalsIgnoreCase(manufacturer)) {
                intent.setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.optimize.process.ProtectActivity"));
            }
            else if ("huawei".equalsIgnoreCase(manufacturer)) {
                intent.setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.optimize.process.ProtectActivity"));
            }
            else if ("asus".equalsIgnoreCase(manufacturer)) {
                intent.setComponent(new ComponentName("com.asus.mobilemanager","com.asus.mobilemanager.autostart.AutoStartActivity"));
            }
            else {
                Log.e("other phone ", "===>");
            }
            List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
            if (list.size() > 0) {
                startActivity(intent);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }