Workmanager with foreground service

TestService.kt

package com.sumanmsoft.dashboard

import android.app.NotificationChannel
import android.app.NotificationManager
import android.app.Service
import android.content.Context
import android.content.Context.NOTIFICATION_SERVICE
import android.content.Intent
import android.os.Build
import android.os.Handler
import android.os.IBinder
import androidx.annotation.RequiresApi
import androidx.core.app.NotificationCompat
import androidx.work.*
import com.google.common.util.concurrent.ListenableFuture
import kotlinx.coroutines.delay

class TestService(val context: Context, workerParams: WorkerParameters) : CoroutineWorker(context, workerParams) {


    override suspend fun doWork(): Result {
        delay(10000) //simulating long work
        return Result.success()
    }

    override suspend fun getForegroundInfo(): ForegroundInfo {
        return createForegroundInfo()
    }

    private fun createForegroundInfo(): ForegroundInfo {
        val id = "213"
        val title ="title"
        val cancel = "cancel"
        // This PendingIntent can be used to cancel the worker
        val intent = WorkManager.getInstance(applicationContext)
            .createCancelPendingIntent(getId())

        // Create a Notification channel if necessary
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            createChannel()
        }

        val notification = NotificationCompat.Builder(applicationContext, id)
            .setContentTitle(title)
            .setTicker(title)
            .setContentText("test")
            .setSmallIcon(R.drawable.ic_telegram)
            .setOngoing(true)
            // Add the cancel action to the notification which can
            // be used to cancel the worker
            .addAction(android.R.drawable.ic_delete, cancel, intent)
            .build()

        return ForegroundInfo(100, notification)
    }

    @RequiresApi(Build.VERSION_CODES.O)
    private fun createChannel() {
        val mChannel = NotificationChannel("CHANNEL_ID", "nam", NotificationManager.IMPORTANCE_DEFAULT)
        mChannel.description = "descriptionText"
        // Register the channel with the system; you can't change the importance
        // or other notification behaviors after this
        val notificationManager = context.getSystemService(NOTIFICATION_SERVICE) as NotificationManager
        notificationManager.createNotificationChannel(mChannel)
        // Create a Notification channel
    }
}