当应用程序被杀死时不显示通知

Question

我的任务是在特定时间制定每天的通知时间表。目前我有当前的实现：

fun scheduleRepeatingRTCNotification(context: Context, hour: Int, min: Int) {
    val calendar: Calendar = Calendar.getInstance()
    calendar.timeInMillis = System.currentTimeMillis()
    calendar.set(Calendar.HOUR_OF_DAY, hour)
    calendar.set(Calendar.MINUTE, min)
    calendar.set(Calendar.SECOND, 0)
    
    val intent = Intent(context, AlarmReceiver::class.java)
    alarmIntentRTC = PendingIntent.getBroadcast(
        context,
        ALARM_TYPE_RTC,
        intent,
        PendingIntent.FLAG_UPDATE_CURRENT
    )
    alarmManagerRTC = context.getSystemService(ALARM_SERVICE) as AlarmManager
    alarmManagerRTC!!.setRepeating(
        AlarmManager.RTC,
        calendar.timeInMillis, AlarmManager.INTERVAL_DAY, alarmIntentRTC
    )
}

还有我的广播接收器类：

class AlarmReceiver : BroadcastReceiver() {


override fun onReceive(context: Context, intent: Intent) {
    val intentToRepeat = Intent(context, MainActivity::class.java)
    intentToRepeat.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP
    
    val pendingIntent = PendingIntent.getActivity(
        context,
        NotificationHelper.ALARM_TYPE_RTC,
        intentToRepeat,
        PendingIntent.FLAG_UPDATE_CURRENT
    )
    
    val repeatedNotification: Notification =
        buildLocalNotification(context, pendingIntent).build()
    
    NotificationHelper.getNotificationManager(context)
        .notify(NotificationHelper.ALARM_TYPE_RTC, repeatedNotification)
}

除非应用程序被终止，否则此代码有效，当应用程序终止时，通知仅在应用程序启动时出现。即使应用程序被杀死，有没有办法让通知出现？我尝试了工作管理器、服务，到处都是相同的行为。