71.3 Creating the Notification Channel

As with the example in the previous chapter, a channel must be created before a notification can be sent. Edit the MainActivity.kt file and add code to create a new channel as follows:

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import android.app.NotificationChannel

import android.app.NotificationManager

import android.content.Context

import android.graphics.Color

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class MainActivity : AppCompatActivity() {

 

    private var notificationManager: NotificationManager? = null

    private val channelID = "com.ebookfrenzy.directreply.news"

    

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)

        setContentView(R.layout.activity_main)

 

        notificationManager...