How to choose the most suitable notification type depending on the str coefficient level in the product?

The choice of notification type in Android depends on the importance and urgency of the information you want to convey to the user, as well as the value of the str coefficient in your product.

If the str coefficient is high (for example, a critical level), it is advisable to use more noticeable notifications, such as high-priority push notifications or heads-up notifications, which appear over the current screen and require the user's attention.

For a medium level of the coefficient, standard notifications with an icon and sound can be used, which do not interrupt the user but inform about the event.

For a low level, quiet notifications without sound or updating information within the app (for example, a badge on the icon) can suffice.

Example:

val notificationBuilder = NotificationCompat.Builder(context, CHANNEL_ID)

when {
    str >= 80 -> { // high level
        notificationBuilder.setPriority(NotificationCompat.PRIORITY_HIGH)
            .setDefaults(NotificationCompat.DEFAULT_ALL) // sound, vibration
            .setFullScreenIntent(pendingIntent, true) // heads-up
    }
    str >= 50 -> { // medium level
        notificationBuilder.setPriority(NotificationCompat.PRIORITY_DEFAULT)
            .setSound(defaultSoundUri)
    }
    else -> { // low level
        notificationBuilder.setPriority(NotificationCompat.PRIORITY_LOW)
            .setSilent(true)
    }
}

notificationManager.notify(notificationId, notificationBuilder.build())

Thus, the notification type is selected based on the value of the str coefficient to optimally attract the user's attention without causing excessive irritation.