---
title: "BackdropScaffoldState"
description: "State of the persistent bottom sheet in [BackdropScaffold]."
type: "function"
---

<div class='type'>Function</div>


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


```kotlin
fun BackdropScaffoldState(
    initialValue: BackdropValue,
    density: Density,
    animationSpec: AnimationSpec<Float> = BackdropScaffoldDefaults.AnimationSpec,
    confirmValueChange: (BackdropValue) -> Boolean = { true },
    snackbarHostState: SnackbarHostState = SnackbarHostState(),
) =
    BackdropScaffoldState(initialValue, animationSpec, confirmValueChange, snackbarHostState).also {
        it.density = density
    }
```


State of the persistent bottom sheet in `BackdropScaffold`.

#### Parameters

| | |
| --- | --- |
| initialValue | The initial value of the state. |
| density | The density that this state can use to convert values to and from dp. |
| animationSpec | The default animation that will be used to animate to a new state. |
| confirmValueChange | Optional callback invoked to confirm or veto a pending state change. |
| snackbarHostState | The `SnackbarHostState` used to show snackbars inside the scaffold. |