How to Get the Device's IMEI/ESN Programmatically in Android using Jetpack Compose?

package com.geeksforgeeks.demo

import android.Manifest
import android.app.Activity
import android.content.Context
import android.content.Context.TELEPHONY_SERVICE
import android.content.pm.PackageManager
import android.os.*
import android.telephony.TelephonyManager
import android.widget.Toast
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.annotation.RequiresApi
import androidx.compose.foundation.layout.*
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.*
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.*
import androidx.core.app.ActivityCompat
import com.geeksforgeeks.demo.ui.theme.DemoTheme

class MainActivity : ComponentActivity() {

    @RequiresApi(Build.VERSION_CODES.O)
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            DemoTheme {
                val context = LocalContext.current
                val activity = context as Activity
                DisplayIMEI(context, activity)
            }
        }
    }

    override fun onRequestPermissionsResult(
        requestCode: Int,
        permissions: Array<out String>,
        grantResults: IntArray,
        deviceId: Int
    ) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults, deviceId)
        
        // checking request code.
        if (requestCode == 101) {
            
            // checking if permission is granted.
            if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED
            ) {
                Toast.makeText(this, "Permission granted.", Toast.LENGTH_SHORT).show()
            } else {
                Toast.makeText(this, "Permission denied.", Toast.LENGTH_SHORT).show()
            }
        }
    }
}

@RequiresApi(Build.VERSION_CODES.O)
@Composable
fun DisplayIMEI(context: Context, activity: Activity) {
    Column(
        modifier = Modifier
            .fillMaxWidth()
            .fillMaxHeight(),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {

        // checking for permissions
        if (ActivityCompat.checkSelfPermission(
                context,
                Manifest.permission.READ_PHONE_STATE
            ) != PackageManager.PERMISSION_GRANTED
        ) {
            
            // if permissions are not provided, request for permissions
            ActivityCompat.requestPermissions(
                activity,
                arrayOf(Manifest.permission.READ_PHONE_STATE), 101
            )
        }

        Text(
            text = "IMEI Number of Android Device",
            fontSize = 20.sp,
            modifier = Modifier.padding(5.dp),
            fontWeight = FontWeight.Bold
        )

        val telephonyManager = context.getSystemService(TELEPHONY_SERVICE) as TelephonyManager

        // get imei from Telephony Manager.
        val imei = telephonyManager.imei

        // IMEI text display
        Text(
            text = imei,
            modifier = Modifier.padding(5.dp),
            fontSize = 20.sp,
            fontWeight = FontWeight.Bold
        )
    }
}