---
title: "onFocusEvent"
description: "Add this modifier to a component to observe focus state events."
type: "modifier"
---

<div class='type'>Compose Modifier</div>

<a id='references'></a>
<div class='sourceset sourceset-common'>Common</div>


```kotlin
fun Modifier.onFocusEvent(onFocusEvent: (FocusState) -> Unit): Modifier
```


Add this modifier to a component to observe focus state events.