Reference

Artifact: androidx.constraintlayout:constraintlayout-core

Added in 1.1.1

Kotlin |Java

interface Reference

Known direct subclasses

ConstraintReference, GuidelineReference

`ConstraintReference`
`GuidelineReference`

Known indirect subclasses

AlignHorizontallyReference, AlignVerticallyReference, BarrierReference, ChainReference, FlowReference, GridReference, HelperReference, HorizontalChainReference, VerticalChainReference

`AlignHorizontallyReference`
`AlignVerticallyReference`
`BarrierReference`
`ChainReference`	`HelperReference` for Chains.
`FlowReference`	The FlowReference class can be used to store the relevant properties of a Flow Helper when parsing the Flow Helper information in a JSON representation.
`GridReference`	A HelperReference of a Grid Helper that helps enable Grid in Compose
`HelperReference`
`HorizontalChainReference`
`VerticalChainReference`

Summary

Public functions
`Unit`	`apply()`
`ConstraintWidget!`	`getConstraintWidget()`
`Facade!`	`getFacade()`
`Any!`	`getKey()`
`Unit`	`setConstraintWidget(widget: ConstraintWidget!)`
`Unit`	`setKey(key: Any!)`

Public functions

apply

Added in 1.1.1

fun apply(): Unit

getConstraintWidget

Added in 1.1.1

fun getConstraintWidget(): ConstraintWidget!

getFacade

Added in 1.1.1

fun getFacade(): Facade!

getKey

Added in 1.1.1

fun getKey(): Any!

setConstraintWidget

Added in 1.1.1

fun setConstraintWidget(widget: ConstraintWidget!): Unit

setKey

Added in 1.1.1

fun setKey(key: Any!): Unit

Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

Last updated 2025-05-15 UTC.

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