# VChain

Artifact: [androidx.constraintlayout:constraintlayout-core](https://developer.android.com/jetpack/androidx/releases/constraintlayout) [View Source](https://cs.android.com/search?q=file:androidx/constraintlayout/core/dsl/VChain.java+class:androidx.constraintlayout.core.dsl.VChain) Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

*** ** * ** ***


```
class VChain : Chain
```

<br />

|---|---|---|---|
| [kotlin.Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html) ||||
| ↳ | [androidx.constraintlayout.core.dsl.Helper](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper) |||
|   | ↳ | [androidx.constraintlayout.core.dsl.Chain](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain) ||
|   |   | ↳ | [androidx.constraintlayout.core.dsl.VChain](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain) |

*** ** * ** ***

## Summary

| ### Nested types |
|---|
| `inner class https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain.VAnchor : https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain.Anchor` |

| ### Public constructors |
|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#VChain(java.lang.String)(name: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#VChain(java.lang.String,java.lang.String)(name: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, config: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` |

| ### Public functions |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain.VAnchor!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#getBaseline()()` Get the baseline anchor |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain.VAnchor!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#getBottom()()` Get the bottom anchor |
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain.VAnchor!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#getTop()()` Get the top anchor |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToBaseline(androidx.constraintlayout.core.dsl.Constraint.VAnchor)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!)` Connect anchor to Baseline |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToBaseline(androidx.constraintlayout.core.dsl.Constraint.VAnchor,int)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Connect anchor to Baseline |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToBaseline(androidx.constraintlayout.core.dsl.Constraint.VAnchor,int,int)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, goneMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Connect anchor to Baseline |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToBottom(androidx.constraintlayout.core.dsl.Constraint.VAnchor)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!)` Connect anchor to Bottom |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToBottom(androidx.constraintlayout.core.dsl.Constraint.VAnchor,int)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Connect anchor to Bottom |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToBottom(androidx.constraintlayout.core.dsl.Constraint.VAnchor,int,int)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, goneMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Connect anchor to Bottom |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToTop(androidx.constraintlayout.core.dsl.Constraint.VAnchor)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!)` Connect anchor to Top |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToTop(androidx.constraintlayout.core.dsl.Constraint.VAnchor,int)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Connect anchor to Top |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain#linkToTop(androidx.constraintlayout.core.dsl.Constraint.VAnchor,int,int)(anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!, margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, goneMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Connect anchor to Top |

| ### Inherited Constants |
|---|
| From [androidx.constraintlayout.core.dsl.Chain](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain) |---|---| | `const (https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html<https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain.Style!, https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain#styleMap()` | |
| From [androidx.constraintlayout.core.dsl.Helper](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper) |---|---| | `const (https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html<https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.Side!, https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#sideMap()` | | `const (https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html<https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper.Type!, https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#typeMap()` | |

| ### Inherited functions |
|---|
| From [androidx.constraintlayout.core.dsl.Chain](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain) |---|---| | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain#addReference(androidx.constraintlayout.core.dsl.Ref)(ref: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Ref!)` Add a new reference | | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain#addReference(java.lang.String)(ref: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!)` Add a new reference | | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain.Style!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain#getStyle()()` | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain#referencesToString()()` convert references to a String representation | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain#setStyle(androidx.constraintlayout.core.dsl.Chain.Style)(style: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain.Style!)` | |
| From [androidx.constraintlayout.core.dsl.Helper](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper) |---|---| | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#append(java.util.Map<java.lang.String,java.lang.String>,java.lang.StringBuilder)(map: (https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html<https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>!, ret: https://developer.android.com/reference/java/lang/StringBuilder.html!)` | | `(https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html<https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#convertConfigToMap()()` | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#getConfig()()` | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#getId()()` | | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper.HelperType!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#getType()()` | | `java-static https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#main(java.lang.String[])(args: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html<https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>!)` | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#toString()()` | |

| ### Inherited properties |
|---|
| From [androidx.constraintlayout.core.dsl.Chain](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain) |---|---| | `https://developer.android.com/reference/java/util/ArrayList.html<https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Ref!>!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Chain#references()` | |
| From [androidx.constraintlayout.core.dsl.Helper](https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper) |---|---| | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#config()` | | `(https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html<https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#configMap()` | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#name()` | | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper.HelperType!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Helper#type()` | |

## Public constructors

### VChain

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
VChain(name: String!)
```

### VChain

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
VChain(name: String!, config: String!)
```

## Public functions

### getBaseline

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun getBaseline(): VChain.VAnchor!
```

Get the baseline anchor

| Returns |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain.VAnchor!` | the baseline anchor |

### getBottom

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun getBottom(): VChain.VAnchor!
```

Get the bottom anchor

| Returns |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain.VAnchor!` | the bottom anchor |

### getTop

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun getTop(): VChain.VAnchor!
```

Get the top anchor

| Returns |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/VChain.VAnchor!` | the top anchor |

### linkToBaseline

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToBaseline(anchor: Constraint.VAnchor!): Unit
```

Connect anchor to Baseline

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |

### linkToBaseline

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToBaseline(anchor: Constraint.VAnchor!, margin: Int): Unit
```

Connect anchor to Baseline

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the margin |

### linkToBaseline

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToBaseline(anchor: Constraint.VAnchor!, margin: Int, goneMargin: Int): Unit
```

Connect anchor to Baseline

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the margin |
| `goneMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the goneMargin |

### linkToBottom

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToBottom(anchor: Constraint.VAnchor!): Unit
```

Connect anchor to Bottom

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |

### linkToBottom

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToBottom(anchor: Constraint.VAnchor!, margin: Int): Unit
```

Connect anchor to Bottom

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the margin |

### linkToBottom

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToBottom(anchor: Constraint.VAnchor!, margin: Int, goneMargin: Int): Unit
```

Connect anchor to Bottom

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the margin |
| `goneMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the goneMargin |

### linkToTop

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToTop(anchor: Constraint.VAnchor!): Unit
```

Connect anchor to Top

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |

### linkToTop

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToTop(anchor: Constraint.VAnchor!, margin: Int): Unit
```

Connect anchor to Top

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the margin |

### linkToTop

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun linkToTop(anchor: Constraint.VAnchor!, margin: Int, goneMargin: Int): Unit
```

Connect anchor to Top

| Parameters |
|---|---|
| `anchor: https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/dsl/Constraint.VAnchor!` | anchor to be connected |
| `margin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the margin |
| `goneMargin: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | value of the goneMargin |