Jetpack Compose - Navigation Rail

Navigation rails provide ergonomic movement between primary destinations in apps.

This example demonstrates how to make a Jetpack Compose Navigation Rail

package io.material.compose

import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Home
import androidx.compose.material.icons.filled.Search
import androidx.compose.material.icons.filled.Settings
import androidx.compose.material3.*
import androidx.compose.runtime.*
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
import io.material.compose.model.post1
import io.material.compose.ui.design.PostCardPopular

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun NavigationRailSample() {
    var selectedItem by remember { mutableStateOf(0) }
    LazyColumn(
        Modifier.padding(75.dp,0.dp,0.dp,0.dp),
        verticalArrangement = Arrangement.spacedBy(8.dp)
    ) {
        val list = (0..25).map { it.toString() }
        items(count = list.size) {
            // * card view
            PostCardPopular(post1, {})
        }
    }

    val items = listOf("Home", "Search", "Settings")
    val icons = listOf(Icons.Filled.Home, Icons.Filled.Search, Icons.Filled.Settings)
    //..........................................................................................
    // Navigation Rail Sample
    NavigationRail {
        items.forEachIndexed { index, item ->
            NavigationRailItem(
                icon = { Icon(icons[index], contentDescription = item) },
                label = { Text(item) },
                selected = selectedItem == index,
                onClick = { selectedItem = index }
            )
        }
    }
}

• Navigation rail with only selected label

NavigationRail {
        items.forEachIndexed { index, item ->
            NavigationRailItem(
                icon = { Icon(icons[index], contentDescription = item) },
                label = { Text(item) },
                selected = selectedItem == index,
                onClick = { selectedItem = index },
                alwaysShowLabel = false
            )
        }
    }

• Navigation rail bottom align

A Spacer that pushes the NavigationRail items to the bottom of the NavigationRail.

 NavigationRail {
        // A Spacer that pushes the NavigationRail items to the bottom of the NavigationRail.
        Spacer(Modifier.weight(1f))
        items.forEachIndexed { index, item ->
            NavigationRailItem(
                icon = { Icon(icons[index], contentDescription = item) },
                label = { Text(item) },
                selected = selectedItem == index,
                onClick = { selectedItem = index },
                alwaysShowLabel = false
            )
        }
    }

..