Create Notification Channel

NotificationHelper.kt

package com.example.direct_reply_notification

import android.app.NotificationChannel
import android.app.NotificationManager
import android.content.Context
import android.graphics.Color
import android.os.Build
import androidx.core.app.NotificationManagerCompat

object NotificationHelper {
    private const val CHANNEL_ID = "01"
    private const val CHANNEL_NAME = "Ideas"

    fun createChannel(context: Context) {
        val manager = NotificationManagerCompat.from(context)

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { // check if build version is later than Android 8.0 (Oreo, API level 26)
            val importance = NotificationManager.IMPORTANCE_DEFAULT
            val channel = NotificationChannel(CHANNEL_ID, CHANNEL_NAME, importance)
            channel.description = "It's a personal channel"
            channel.enableVibration(false)
            channel.enableLights(true)
            channel.lightColor = Color.RED
            manager.createNotificationChannel(channel)
        }
    }

}