Post Notification

WorkerUtils.kt

/**
 * Create a Notification that is shown as a heads-up notification if possible.
 *
 * For this project, this is used to show a notification so that you know when different steps
 * of the background work chain are starting
 *
 * @param message Message shown on the notification
 * @param context Context needed to create Toast
 *
 * Created by Arindam Karmakar on 16/5/19.
 */

internal fun makeStatusNotification(message: String, context: Context) {

    // Make a channel if necessary
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        // Create the NotificationChannel, but only on API 26+ because
        // the NotificationChannel class is new and not in the support library
        val name = VERBOSE_NOTIFICATION_CHANNEL_NAME
        val description = VERBOSE_NOTIFICATION_CHANNEL_DESCRIPTION
        val importance = NotificationManager.IMPORTANCE_HIGH
        val channel = NotificationChannel(CHANNEL_ID, name, importance)
        channel.description = description

        // Add the channel
        val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager?

        notificationManager?.createNotificationChannel(channel)
    }

    // Create the notification
    val builder = NotificationCompat.Builder(context, CHANNEL_ID)
        .setSmallIcon(R.drawable.ic_launcher_foreground)
        .setContentTitle(NOTIFICATION_TITLE)
        .setContentText(message)
        .setPriority(NotificationCompat.PRIORITY_HIGH)
        .setVibrate(LongArray(0))

    // Show the notification
    NotificationManagerCompat.from(context).notify(NOTIFICATION_ID, builder.build())
}