[android 10] 백그라운드 서비스가 동작을 멈추었다.

final WorkManager mWorkManager = WorkManager.getInstance();
//final OneTimeWorkRequest mRequest = new OneTimeWorkRequest.Builder(BatteryWorkManager.class).build();
Constraints constraints = new Constraints.Builder().setRequiredNetworkType(NetworkType.CONNECTED).build();
PeriodicWorkRequest pRequest = new PeriodicWorkRequest.Builder(BatteryWorkManager.class, 15, TimeUnit.MINUTES).build();
//.setConstraints(constraints).build();
mWorkManager.enqueue(pRequest);
Log.d(TAG, “############## BatteryWorkManager 호출완료”);

private void callCompleteActivity(Context context, Intent intent){
    try {
        Log.e("ddolcat", "############################ [callCompleteActivity]  start " );
        Intent sIntent = new Intent(context, MainActivity.class);
        sIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);  
        sIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        //Activity가 아닌 곳에서 startActivity를 사용하려고 할때 필수

        context.startActivity(sIntent);
        Log.e("ddolcat", "############################ [callCompleteActivity]  finish " );
    }catch (Exception e){

    }
}