# LayoutReference

Artifact: [androidx.constraintlayout:constraintlayout-compose](https://developer.android.com/jetpack/androidx/releases/constraintlayout) [View Source](https://cs.android.com/search?q=file:androidx/constraintlayout/compose/ConstraintLayoutBaseScope.kt+class:androidx.constraintlayout.compose.LayoutReference) Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)


```
abstract class LayoutReference
```

<br />

Known direct subclasses [ConstrainedLayoutReference](https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/ConstrainedLayoutReference), [HorizontalChainReference](https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/HorizontalChainReference), [VerticalChainReference](https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/VerticalChainReference)

|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/ConstrainedLayoutReference` | Represents a layout within a `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/ConstraintLayout.composable#ConstraintLayout(androidx.compose.ui.Modifier,kotlin.Int,androidx.compose.animation.core.AnimationSpec,kotlin.Function0,kotlin.Function1)`. |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/HorizontalChainReference` | Represents a horizontal chain within a `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/ConstraintLayout.composable#ConstraintLayout(androidx.compose.ui.Modifier,kotlin.Int,androidx.compose.animation.core.AnimationSpec,kotlin.Function0,kotlin.Function1)`. |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/VerticalChainReference` | Represents a vertical chain within a `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/ConstraintLayout.composable#ConstraintLayout(androidx.compose.ui.Modifier,kotlin.Int,androidx.compose.animation.core.AnimationSpec,kotlin.Function0,kotlin.Function1)`. |

*** ** * ** ***

Represents a `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/ConstraintLayout.composable#ConstraintLayout(androidx.compose.ui.Modifier,kotlin.Int,androidx.compose.animation.core.AnimationSpec,kotlin.Function0,kotlin.Function1)` item that requires a unique identifier. Typically a layout or a helper such as barriers, guidelines or chains.

## Summary

| ### Public functions |
|---|---|
| `open operator https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/LayoutReference#equals(kotlin.Any)(other: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html?)` |
| `open https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/compose/LayoutReference#hashCode()()` |

## Public functions

### equals

```
open operator fun equals(other: Any?): Boolean
```

### hashCode

```
open fun hashCode(): Int
```