Kotlin AlarmManager和BroadcastReceiver不工作

    val receiver = object : BroadcastReceiver() {
        override fun onReceive(context: Context, intent: Intent) {
            //Never gets hit
        }
    }
    context.registerReceiver(receiver, IntentFilter(LOCAL_NOTIFICATION))

    val intent = Intent()
    intent.action = LOCAL_NOTIFICATION

    val alarmManager = context.getSystemService(ALARM_SERVICE) as? AlarmManager
    val pendingIntent = PendingIntent.getService(context, 1, intent, PendingIntent.FLAG_UPDATE_CURRENT)

    val calendar = Calendar.getInstance()

    calendar.add(Calendar.SECOND, 10)

    alarmManager?.set(AlarmManager.RTC_WAKEUP, calendar.timeInMillis, pendingIntent)