ComboboxTrigger

fun ComboboxTrigger(state: ComboboxState, modifier: Modifier = Modifier, enabled: Boolean = true, isError: Boolean = false, content: @Composable RowScope.() -> Unit = { ComboboxValue(state = state) Spacer(Modifier.weight(1f)) Icon( imageVector = if (state.expanded) Icons.Default.KeyboardArrowUp else Icons.Default.KeyboardArrowDown, contentDescription = null, modifier = Modifier.size(16.dp), tint = MaterialTheme.colorScheme.onSurfaceVariant ) })(source)

Button-style trigger that opens/closes the dropdown.