如何避免重复启动两个service

    public static List<Boolean> isTwoServiceRunning(Context context, String ServiceName1, String ServiceName2) {
        Boolean serviceNull1 = ("").equals(ServiceName1) || ServiceName1 == null;
        Boolean serviceNull2 = ("").equals(ServiceName2) || ServiceName2 == null;
        List<Boolean> servicesBoolean = new ArrayList<>();
        if (serviceNull1 && serviceNull2) {
            return null;
        }
        Log.d(TAG, "isServiceRunning: " + serviceNull1 + ", " + serviceNull2);
        Boolean serviceOne =false;
        Boolean serviceTwo= false;
        ActivityManager myManager = (ActivityManager) context
                .getSystemService(Context.ACTIVITY_SERVICE);
        ArrayList<ActivityManager.RunningServiceInfo> runningService = (ArrayList<ActivityManager.RunningServiceInfo>) myManager
                .getRunningServices(100);

      for (int i = 0; i < runningService.size(); i++) {
            if (serviceOne && serviceTwo) {
                break;
            }

            if (!serviceNull1 && !serviceOne && runningService.get(i).service.getClassName().equals(ServiceName1)) {
                Log.d(TAG, "isService1Running: ");
                serviceOne = true;
            }

        if (!serviceNull2 && !serviceTwo && runningService.get(i).service.getClassName().equals(ServiceName2)) {
                Log.d(TAG, "isService2Running: ");
                serviceTwo = true;
            }
            //Log.d(TAG, "isServiceRunning: not running" + runningService.get(i).service.getClassName() + i);
        }

        Log.d(TAG, "isServiceRunning: " + serviceOne + ", " + serviceTwo);
        servicesBoolean.add(serviceOne);
        servicesBoolean.add(serviceTwo);
        return servicesBoolean;
    }

      List<Boolean> serviceBoolean = CommonUtils.isTwoServiceRunning(this,"Service1",
                "Service2");
        if(serviceBoolean == null) {
            return;
        }
        startSingleService(serviceBoolean.get(0), ServiceIntent1);
        startSingleService(serviceBoolean.get(1), ServiceIntent2);

    private void startSingleService(Boolean isStart, Intent intent) {
        if (isStart) {
            return;
        }
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.N_MR1) {
            startForegroundService(intent);
        } else {
            startService(intent);
        }
    }