focusable

fun Modifier.focusable(
    enabled: Boolean = true,
    interactionSource: MutableInteractionSource? = null
): Modifier

import androidx.compose.foundation.focusable
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.interaction.collectIsFocusedAsState
import androidx.compose.foundation.layout.Column
import androidx.compose.material.Button
import androidx.compose.material.Text
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier
import androidx.compose.ui.focus.FocusRequester
import androidx.compose.ui.focus.focusRequester

// initialize focus reference to be able to request focus programmatically
val focusRequester = remember { FocusRequester() }
// MutableInteractionSource to track changes of the component's interactions (like "focused")
val interactionSource = remember { MutableInteractionSource() }

// text below will change when we focus it via button click
val isFocused = interactionSource.collectIsFocusedAsState().value
val text =
    if (isFocused) {
        "Focused! tap anywhere to free the focus"
    } else {
        "Bring focus to me by tapping the button below!"
    }
Column {
    // this Text will change it's text parameter depending on the presence of a focus
    Text(
        text = text,
        modifier =
            Modifier
                // add focusRequester modifier before the focusable (or even in the parent)
                .focusRequester(focusRequester)
                .focusable(interactionSource = interactionSource),
    )
    Button(onClick = { focusRequester.requestFocus() }) {
        Text("Bring focus to the text above")
    }
}