How to Get the Build Version Number of an Android Application using Jetpack Compose?

Version Name and Version Code in an Android application tell us about the current app version installed on the user’s mobile device. This information is generally used when we prompt users to update to the new version of the older version of the application. In this article, we will look at How to get the Build Version Number of an Android application 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.Manifest.permission.READ_EXTERNAL_STORAGE
import android.app.Activity
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import android.content.pm.PackageManager
import android.database.Cursor
import android.os.Bundle
import android.os.Environment
import android.provider.MediaStore
import android.util.Log
import android.widget.Toast

import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.ExperimentalFoundationApi
import androidx.compose.foundation.Image
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.lazy.GridCells
import androidx.compose.foundation.lazy.LazyVerticalGrid
import androidx.compose.material.*
import androidx.compose.runtime.*
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.res.painterResource
import androidx.compose.ui.semantics.Role.Companion.Image
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.*
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import androidx.localbroadcastmanager.content.LocalBroadcastManager
import coil.compose.rememberImagePainter
import com.example.newcanaryproject.ui.theme.*
import java.io.File

class MainActivity : ComponentActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            NewCanaryProjectTheme {
                // on below line we are specifying
                // background color for our application
                Surface(
                    modifier = Modifier.fillMaxSize(), color = MaterialTheme.colors.background
                ) {
                    // on below line we are specifying theme as scaffold.
                    Scaffold(
                        // in scaffold we are specifying 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 display Version Method.
                        displayVersion()
                    }
                }
            }
        }
    }

}


@Composable
fun displayVersion() {

    // on below line we are creating a column
    Column(
        // on below line we are adding a modifier to it
        modifier = Modifier
            .fillMaxWidth()
            .fillMaxHeight(),
        verticalArrangement = Arrangement.Center,
        horizontalAlignment = Alignment.CenterHorizontally
    ) {

        // on below line we are creating a simple
        // text view for displaying heading.
        Text(
            text = "Build Version Number of Android App",
            fontSize = 20.sp,
            modifier = Modifier.padding(5.dp),
            fontWeight = FontWeight.Bold
        )


        // on below line we are creating a variable
        // and storing our version name
        // and version code.
        val version =
            "Version Name : " + BuildConfig.VERSION_NAME + "\n" + "Version Code : " + BuildConfig.VERSION_CODE.toString()

        Text(
            text = version,
            modifier = Modifier.padding(5.dp),
            fontSize = 20.sp,
            fontWeight = FontWeight.Bold
        )

    }

}

Now run your application to see the output of it. 

Output: