How to create a custom Snackbar with fixed width in Jetpack Compose?

I'm trying to implement a custom Snackbar in Jetpack Compose. I want the Snackbar to have a fixed width (something like wrapContent), but the standard Android Snackbar always stretches to the full screen width.

Is it possible to customize the default Snackbar to achieve this behavior? Or would it be better to implement my own Snackbar from scratch using Box, Card, or another composable?

What is the recommended approach for creating a Snackbar with a fixed width in Jetpack Compose?

Expected Snackbar:

Actual:

Code sample:

import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.layout.wrapContentWidth
import androidx.compose.material3.Button
import androidx.compose.material3.CircularProgressIndicator
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Snackbar
import androidx.compose.material3.SnackbarDuration
import androidx.compose.material3.SnackbarHost
import androidx.compose.material3.SnackbarHostState
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.rememberCoroutineScope
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch

@Composable
fun LoadingSnackbarContent(message: String) {
    Row(
        modifier = Modifier
            .padding(16.dp),
        verticalAlignment = Alignment.CenterVertically,
        horizontalArrangement = Arrangement.spacedBy(16.dp)
    ) {
        CircularProgressIndicator(
            modifier = Modifier.size(24.dp),
            color = Color.White,
            strokeWidth = 2.dp
        )
        Text(
            text = message,
            color = Color.White,
        )
    }
}

@Composable
fun LoadingSnackbarDemo() {
    val snackbarHostState = remember { SnackbarHostState() }
    val coroutineScope = rememberCoroutineScope()
    var isLoading by remember { mutableStateOf(false) }

    Scaffold(
        snackbarHost = {
            SnackbarHost(snackbarHostState) { data ->
                Snackbar(
                    modifier = Modifier
                        .padding(horizontal = 16.dp)
                        .wrapContentWidth(align = Alignment.CenterHorizontally),
                    content = { LoadingSnackbarContent(message = "Loading...") }
                )
            }
        },
        content = { paddingValues ->
            Column(
                modifier = Modifier
                    .fillMaxSize()
                    .padding(paddingValues)
                    .padding(16.dp),
                horizontalAlignment = Alignment.CenterHorizontally,
                verticalArrangement = Arrangement.Center
            ) {
                Button(
                    onClick = {
                        if (!isLoading) {
                            isLoading = true
                            coroutineScope.launch {
                                snackbarHostState.showSnackbar(
                                    message = "Verifying...",
                                    duration = SnackbarDuration.Indefinite
                                )
                                delay(3000)
                                snackbarHostState.currentSnackbarData?.dismiss()
                                isLoading = false
                            }
                        }
                    },
                    enabled = !isLoading
                ) {
                    Text(if (isLoading) "Loading..." else "Start Verification")
                }
            }
        }
    )
}

@Preview
@Composable
private fun LoadingSnackbarContentPreview() {
    LoadingSnackbarContent("Loading...")
}

@Preview(showBackground = true)
@Composable
fun PreviewLoadingSnackbarDemo() {
    LoadingSnackbarDemo()
}

Sadly it is not possible to change the default behaviour of the SnackbarHost. Therefore it will always stretch the full width of the screen.

Thus if you want it to just wrap the content you would have to make a custom snackbar like you mentioned.