Get Battery Level in Android using Jetpack Compose

package com.geeksforgeeks.demo

import android.content.Context
import android.content.Context.BATTERY_SERVICE
import android.os.*
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
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.unit.*
import com.geeksforgeeks.demo.ui.theme.DemoTheme

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            DemoTheme {
                GetBatteryLevel(LocalContext.current)
            }
        }
    }
}

@Composable
fun GetBatteryLevel(context: Context) {
    Column(
        modifier = Modifier
            .fillMaxSize()
            .padding(all = 30.dp),
        horizontalAlignment = Alignment.CenterHorizontally,
        verticalArrangement = Arrangement.Center,
    ) {
        // Call battery manager service
        val batteryManager = context.getSystemService(BATTERY_SERVICE) as BatteryManager

        // Get the battery percentage and store it in a INT variable
        val batteryLevel: Int = batteryManager.getIntProperty(BatteryManager.BATTERY_PROPERTY_CAPACITY)

        // text to display battery level.
        Text(
            text = "Battery Level : " + batteryLevel,
            fontSize = 20.sp
        )
    }
}