used to get Autostart option for Alarm Manager in Android

Autostart.java

 private void addAutoStartupswitch() {

        try {
            Intent intent = new Intent();
            String manufacturer = android.os.Build.MANUFACTURER .toLowerCase();
            String model= Build.MODEL;
            Log.d("DeviceModel",model.toString());

            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;
                case "Letv":
                    intent.setComponent(new ComponentName("com.letv.android.letvsafe", "com.letv.android.letvsafe.AutobootManageActivity"));
                    break;
                case "Honor":
                    intent.setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.optimize.process.ProtectActivity"));
                    break;
                case "oneplus":
                    intent.setComponent(new ComponentName("com.oneplus.security", "com.oneplus.security.chainlaunch.view.ChainLaunchAppListAct‌​ivity"));
                    break;
            }

            List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
            if  (list.size() > 0) {
                startActivity(intent);
            }
        } catch (Exception e) {
            Log.e("exc" , String.valueOf(e));
        }

    }

i have oneplus nord2 5g and not work with me