Foreground Service with Notification chennal

Example code for notification in foreground service

Here we are starting the foreground service from the MainActivity.kt

        //Start foreground service using notification channel id
        button.setOnClickListener {
            val intent = Intent(this, ForeGrService::class.java)
            intent.putExtra("extraText", editText.text.toString())
//            startService(intent) //or
            ContextCompat.startForegroundService(this, intent)
        }

Stop the service from the Activity class

        btn_stop.setOnClickListener {
            val intent: Intent = Intent(this, ForeGrService::class.java)
            stopService(intent)
        }

onStartComment override method will trigger the notification using channel id in ForegroundService class

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {

        val extraText = intent?.getStringExtra("extraText");

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            val intent = Intent(this, MainActivity::class.java)
            val pendingIntent:PendingIntent = PendingIntent.getActivity(this, 1,intent, 0)

            val notification: Notification = Notification.Builder(this, CHENNEL_2_ID)
                .setContentText("Service text $extraText")
                .setContentTitle("Service title")
                .setSmallIcon(R.drawable.ic_launcher_background)
                .setLargeIcon(
                    BitmapFactory.decodeResource(
                        this.resources,
                        R.drawable.ic_launcher_background
                    )
                )
                .setContentIntent(pendingIntent)
                .build()

            startForeground(1, notification)
        }

//        stopSelf()

        return START_STICKY;

    }

You can get full source code from the GitHub link

https://github.com/AndroidManikandan5689/Notification-in-Foreground-Service-Android