Как правильно реализовать свой reminder в android?

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public class ReminderManager {

    public static void setReminder(Context context, Class<?> cls, int hour, int minute) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, hour);
        calendar.set(Calendar.MINUTE, minute);
        calendar.set(Calendar.SECOND, 0);

        Intent intent = new Intent(context, cls);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
        alarmManager.setExact(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
    }

    public static void cancelReminder(Context context, Class<?> cls) {
        Intent intent = new Intent(context, cls);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
        alarmManager.cancel(pendingIntent);
        pendingIntent.cancel();
    }
}

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public class ReminderReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // Здесь можно реализовать логику создания уведомления
    }
}

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<receiver android:name=".ReminderReceiver" />

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ReminderManager.setReminder(this, ReminderReceiver.class, hour, minute);

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ReminderManager.cancelReminder(this, ReminderReceiver.class);