Autofill.kt

import androidx.compose.ui.Modifier
import androidx.compose.ui.composed
import androidx.compose.ui.ExperimentalComposeUiApi
import androidx.compose.ui.focus.onFocusChanged
import androidx.compose.ui.layout.boundsInWindow
import androidx.compose.ui.layout.onGloballyPositioned
import androidx.compose.ui.autofill.AutofillNode
import androidx.compose.ui.autofill.AutofillType
import androidx.compose.ui.platform.LocalAutofill
import androidx.compose.ui.platform.LocalAutofillTree

@ExperimentalComposeUiApi
public fun Modifier.autofill(
    autofillTypes: List<AutofillType>,
    onFill: (String) -> Unit
): Modifier = composed {
    val autofill = LocalAutofill.current
    val autofillNode = AutofillNode(
        onFill = onFill,
        autofillTypes = autofillTypes
    )

    LocalAutofillTree.current += autofillNode

    this.onGloballyPositioned { layoutCoordinates ->
        autofillNode.boundingBox = layoutCoordinates.boundsInWindow()
    }.onFocusChanged { focusState ->
        if (autofill != null) {
            if (focusState.isFocused) {
                autofill.requestAutofillForNode(
                    autofillNode = autofillNode
                )
            } else {
                autofill.cancelAutofillForNode(
                    autofillNode = autofillNode
                )
            }
        }
    }
}