ExposedDropdownMenuBox

@ExperimentalMaterialApi
@Composable
fun ExposedDropdownMenuBox(
    expanded: Boolean,
    onExpandedChange: (Boolean) -> Unit,
    modifier: Modifier = Modifier,
    content: @Composable ExposedDropdownMenuBoxScope.() -> Unit
): Unit

import androidx.compose.foundation.text.input.rememberTextFieldState
import androidx.compose.foundation.text.input.setTextAndPlaceCursorAtEnd
import androidx.compose.material.DropdownMenuItem
import androidx.compose.material.ExposedDropdownMenuBox
import androidx.compose.material.ExposedDropdownMenuDefaults
import androidx.compose.material.Text
import androidx.compose.material.TextField
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember

val options = listOf("Option 1", "Option 2", "Option 3", "Option 4", "Option 5")
var expanded by remember { mutableStateOf(false) }
val textFieldState = rememberTextFieldState(options[0])
// We want to react on tap/press on TextField to show menu
ExposedDropdownMenuBox(expanded = expanded, onExpandedChange = { expanded = it }) {
    TextField(
        readOnly = true,
        state = textFieldState,
        label = { Text("Label") },
        trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = expanded) },
        colors = ExposedDropdownMenuDefaults.textFieldColors(),
    )
    ExposedDropdownMenu(expanded = expanded, onDismissRequest = { expanded = false }) {
        options.forEach { selectionOption ->
            DropdownMenuItem(
                onClick = {
                    textFieldState.setTextAndPlaceCursorAtEnd(selectionOption)
                    expanded = false
                }
            ) {
                Text(text = selectionOption)
            }
        }
    }
}

import androidx.compose.foundation.text.input.rememberTextFieldState
import androidx.compose.foundation.text.input.setTextAndPlaceCursorAtEnd
import androidx.compose.material.DropdownMenuItem
import androidx.compose.material.ExposedDropdownMenuBox
import androidx.compose.material.ExposedDropdownMenuDefaults
import androidx.compose.material.Text
import androidx.compose.material.TextField
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember

val options = listOf("Option 1", "Option 2", "Option 3", "Option 4", "Option 5")
var expanded by remember { mutableStateOf(false) }
val textFieldState = rememberTextFieldState()
ExposedDropdownMenuBox(expanded = expanded, onExpandedChange = { expanded = it }) {
    TextField(
        state = textFieldState,
        label = { Text("Label") },
        trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(expanded = expanded) },
        colors = ExposedDropdownMenuDefaults.textFieldColors(),
    )
    // filter options based on text field value
    val filteringOptions =
        options.filter { it.contains(textFieldState.text, ignoreCase = true) }
    if (filteringOptions.isNotEmpty()) {
        ExposedDropdownMenu(expanded = expanded, onDismissRequest = { expanded = false }) {
            filteringOptions.forEach { selectionOption ->
                DropdownMenuItem(
                    onClick = {
                        textFieldState.setTextAndPlaceCursorAtEnd(selectionOption)
                        expanded = false
                    }
                ) {
                    Text(text = selectionOption)
                }
            }
        }
    }
}