计步器应用程序不会在午夜重置步数

我正在编写一个类似于计步器的Android应用程序。我已经为每日半夜清洁脚步的功能苦苦挣扎了很长一段时间。我的功能无法正常工作，请帮助我。

听众：

    public void onSensorChanged(SensorEvent event) {
        if (event.sensor.getType() == Sensor.TYPE_STEP_COUNTER) {
            SharedPreferences prefs = getSharedPreferences("stats", Context.MODE_PRIVATE);
            float stepsAtMidnight = prefs.getFloat("steps", 0);

            float stepsToday = event.values[0] - stepsAtMidnight;

            if (stepsToday >= 0) {
                dsteps.setText(String.valueOf((int) stepsToday));
                dsteps1.setText(String.valueOf((int) stepsToday));
                float kmm = (stepsToday * 75) / 100000;
                km.setText(String.format("%.1f km", kmm));
                kcal.setText((int)(stepsToday * 0.04) + " kcal");
            }
        }
    }

警报：

public void setMidnightResetAlarm(Context context) {
        AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
        Intent intent = new Intent(context, StepCounterResetReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        Calendar calendar = Calendar.getInstance();
        calendar.setTimeZone(TimeZone.getTimeZone("Europe/Moscow"));
        calendar.set(Calendar.HOUR_OF_DAY, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);

        Toast.makeText(context, "Alarm set for midnight", Toast.LENGTH_SHORT).show();

        alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
                AlarmManager.INTERVAL_DAY, pendingIntent);
    }

接收者：

@Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "Сброс шагов", Toast.LENGTH_SHORT).show();
        SharedPreferences prefs = context.getSharedPreferences("stats", Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = prefs.edit();

        float lastSavedSteps = prefs.getFloat("laststeps", 0);
        editor.putFloat("steps", lastSavedSteps);
        editor.apply();
    }