A proposition of handling BottomBar, NavRail and NavDrawer in a single-composable.

AutoNavMaterial3.kt

/* Copyright 2022 Cedric Ferry.
   SPDX-License-Identifier: Apache-2.0 */

import android.content.res.Configuration.ORIENTATION_LANDSCAPE
import android.content.res.Configuration.ORIENTATION_PORTRAIT
import androidx.compose.foundation.layout.*
import androidx.compose.material3.*
import androidx.compose.material3.windowsizeclass.WindowSizeClass
import androidx.compose.material3.windowsizeclass.WindowWidthSizeClass
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.LocalConfiguration
import androidx.compose.ui.unit.dp



open class NavigationItemData(
    var label: @Composable () -> Unit,
    var icon: @Composable () -> Unit,
    val onClick: () -> Unit = {},
    var selected: Boolean = false
)

enum class NavType {
    BottomBar,
    NavRail,
    Drawer
}

@Composable
fun getNavType(windowSizeClass: WindowSizeClass): NavType {
    val configuration = LocalConfiguration.current
    return if (configuration.orientation == ORIENTATION_PORTRAIT) {
        if (windowSizeClass.widthSizeClass == WindowWidthSizeClass.Compact) {
            NavType.BottomBar
        } else {
            NavType.NavRail
        }
    } else if (configuration.orientation == ORIENTATION_LANDSCAPE) {
        if (windowSizeClass.widthSizeClass == WindowWidthSizeClass.Compact) {
            NavType.BottomBar
        } else if (windowSizeClass.widthSizeClass == WindowWidthSizeClass.Medium) {
            NavType.NavRail
        } else if (windowSizeClass.widthSizeClass == WindowWidthSizeClass.Expanded) {
            NavType.Drawer
        } else {
            NavType.BottomBar
        }
    } else {
        NavType.BottomBar
    }
}

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun AutoNav(
    windowSizeClass: NavType,
    navContent: List<NavigationItemData>,
    content: @Composable () -> Unit = {}
) {
    if (windowSizeClass == NavType.BottomBar) {
        Box(
            modifier = Modifier
                .fillMaxHeight()
                .fillMaxWidth()
        ) {
            Column(modifier = Modifier.align(alignment = Alignment.TopCenter)) {
                content()
            }

            NavigationBar(modifier = Modifier.align(alignment = Alignment.BottomCenter)) {
                for (navItem in navContent) {
                    NavigationBarItem(
                        selected = navItem.selected,
                        onClick = navItem.onClick,
                        icon = navItem.icon
                    )
                }
            }
        }
    } else {
        Row(
            modifier = Modifier
                .fillMaxHeight()
                .fillMaxWidth()
        ) {
            if (windowSizeClass == NavType.NavRail) {
                //https://developer.android.com/reference/kotlin/androidx/compose/material3/package-summary#NavigationRail(androidx.compose.ui.Modifier,androidx.compose.ui.graphics.Color,androidx.compose.ui.graphics.Color,kotlin.Function1,androidx.compose.foundation.layout.WindowInsets,kotlin.Function1)
                NavigationRail() {
                    for (navItem in navContent) {
                        NavigationRailItem(
                            selected = navItem.selected,
                            onClick = navItem.onClick,
                            icon = navItem.icon
                        )
                    }
                }
                content()
            } else if (windowSizeClass == NavType.Drawer) {
                //https://developer.android.com/reference/kotlin/androidx/compose/material3/package-summary#ModalNavigationDrawer(kotlin.Function0,androidx.compose.ui.Modifier,androidx.compose.material3.DrawerState,kotlin.Boolean,androidx.compose.ui.graphics.Color,kotlin.Function0)
                PermanentNavigationDrawer(drawerContent = {
                    ModalDrawerSheet {
                        Spacer(Modifier.height(12.dp))
                        for (navItem in navContent) {
                            NavigationDrawerItem(
                                selected = navItem.selected,
                                onClick = navItem.onClick,
                                icon = navItem.icon,
                                label = navItem.label
                            )
                        }
                    }
                }) {
                    content()
                }
            }
        }
    }
}