How to Get the Connection Information in Android using Jetpack Compose?

Many times while building an android application we require connection-related information about the android device such as IP address, link speed, and others within our android application. In this article, we will take a look at How to obtain connection-related information in the android applications using Jetpack Compose.

Step by Step Implementation

Step 1: Create a New Project in Android Studio

To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. While choosing the template, select Empty Compose Activity. If you do not find this template, try upgrading the Android Studio to the latest version. We demonstrated the application in Kotlin, so make sure you select Kotlin as the primary language while creating a New Project.

Step 2: Working with the MainActivity.kt file

Go to the MainActivity.kt file and refer to the following code. Below is the code for the MainActivity.kt file. Comments are added inside the code to understand the code in more detail.

Kotlin

package com.example.newcanaryproject

import android.content.Context
import android.content.Context.BATTERY_SERVICE
import android.content.Intent
import android.net.wifi.WifiManager
import android.text.format.Formatter
import android.os.BatteryManager
import android.os.Build
import android.os.Bundle
import android.provider.Settings
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.annotation.RequiresApi
import androidx.compose.foundation.layout.*
import androidx.compose.material.*
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.example.newcanaryproject.ui.theme.NewCanaryProjectTheme
import com.example.newcanaryproject.ui.theme.greenColor
import com.github.skydoves.colorpicker.compose.*

class MainActivity : ComponentActivity() {

    @RequiresApi(Build.VERSION_CODES.M)
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            NewCanaryProjectTheme {
                // on below line we are specifying background
                // color for our application
                Surface(
                    // on below line we are specifying modifier and color for our app
                    modifier = Modifier.fillMaxSize(), color = MaterialTheme.colors.background
                ) {

                    // on the below line we are specifying
                    // the theme as the scaffold.
                    Scaffold(

                        // in scaffold we are specifying the top bar.
                        topBar = {

                            // inside top bar we are specifying
                            // background color.
                            TopAppBar(backgroundColor = greenColor,

                                // along with that we are specifying
                                // title for our top bar.
                                title = {

                                    // in the top bar we are specifying
                                    // tile as a text
                                    Text(
                                        // on below line we are specifying
                                        // text to display in top app bar.
                                        text = "GFG",

                                        // on below line we are specifying
                                        // modifier to fill max width.
                                        modifier = Modifier.fillMaxWidth(),

                                        // on below line we are specifying
                                        // text alignment.
                                        textAlign = TextAlign.Center,

                                        // on below line we are specifying
                                        // color for our text.
                                        color = Color.White
                                    )
                                })
                        }) {
                        // on below line we are calling connection information
                        // method to get connection info
                        connectionInformation(context = LocalContext.current)
                    }
                }
            }
        }
    }
}

@Composable
fun connectionInformation(context: Context) {
    // on below line we are creating a column,
    Column(
        // on below line we are adding a modifier to it,
        modifier = Modifier
            .fillMaxSize()
            // on below line we are adding a padding.
            .padding(all = 30.dp),
        horizontalAlignment = Alignment.CenterHorizontally,
        verticalArrangement = Arrangement.Center,
    ) {
        // on below line we are adding a text for heading.
        Text(
            // on below line we are specifying text
            text = "Device Connection Information",
            // on below line we are specifying text color,
            // font size and font weight
            color = greenColor,
            fontSize = 20.sp,
            fontWeight = FontWeight.Bold
        )

        // Invoking the Wifi Manager
        val wifiManager = context.getSystemService(Context.WIFI_SERVICE) as WifiManager

        // Method to get the current connection info
        val wifiInfo = wifiManager.connectionInfo

        // Extracting the information from the received connection info
        val ipAddress = Formatter.formatIpAddress(wifiInfo.ipAddress)
        val linkSpeed = wifiInfo.linkSpeed
        val networkID = wifiInfo.networkId
        val ssid = wifiInfo.ssid
        val hssid = wifiInfo.hiddenSSID
        val bssid = wifiInfo.bssid

        // on below line we are creating a string for
        // displaying connection information.
        val connectionInfo = "IP Address:\t$ipAddress\n" +
                "Link Speed:\t$linkSpeed\n" +
                "Network ID:\t$networkID\n" +
                "SSID:\t$ssid\n" +
                "Hidden SSID:\t$hssid\n" +
                "BSSID:\t$bssid\n"

        // on below line we are creating a text for
        // displaying a connection information.
        Text(
            // on below line we are specifying text
            text = connectionInfo,
            // on below line we are specifying
            // text color, font size and font weight
            color = Color.Black,
            fontSize = 18.sp,
            fontWeight = FontWeight.Normal
        )

    }
}

Output: