Bottom Sheet

import androidx.compose.foundation.layout.*
import androidx.compose.material3.*
import androidx.compose.runtime.*
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
import kotlinx.coroutines.launch

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun MyBottomSheet() {
    val sheetState = rememberModalBottomSheetState(
        skipPartiallyExpanded = false
    )
    val scope = rememberCoroutineScope()
    var showBottomSheet by remember { mutableStateOf(false) }

    Button(onClick = { showBottomSheet = true }) {
        Text("Show bottom sheet")
    }

    if (showBottomSheet) {
        ModalBottomSheet(
            onDismissRequest = {
                showBottomSheet = false
            },
            sheetState = sheetState,
            dragHandle = { BottomSheetDefaults.DragHandle() },
        ) {
            // Sheet content
            Column(modifier = Modifier.padding(16.dp).fillMaxWidth()) {
                Text("Comments", style = MaterialTheme.typography.titleLarge)
                Spacer(modifier = Modifier.height(16.dp))
                Text("This looks great! Can we change the color scheme?")
                Spacer(modifier = Modifier.height(16.dp))
                Button(
                    modifier = Modifier.fillMaxWidth(),
                    onClick = {
                        scope.launch { sheetState.hide() }.invokeOnCompletion {
                            if (!sheetState.isVisible) {
                                showBottomSheet = false
                            }
                        }
                    }
                ) {
                    Text("Close bottom sheet")
                }
            }
        }
    }
}