# ConstraintReference 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/state/ConstraintReference.java+class:androidx.constraintlayout.core.state.ConstraintReference) Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) *** ** * ** *** ``` public class ConstraintReference implements Reference ```
Known direct subclasses [HelperReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/HelperReference) |---|---| | `https://developer.android.com/reference/androidx/constraintlayout/core/state/HelperReference` | | Known indirect subclasses [AlignHorizontallyReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/AlignHorizontallyReference), [AlignVerticallyReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/AlignVerticallyReference), [BarrierReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/BarrierReference), [ChainReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/ChainReference), [FlowReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/FlowReference), [GridReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/GridReference), [HorizontalChainReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/HorizontalChainReference), [VerticalChainReference](https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/VerticalChainReference) |---|---| | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/AlignHorizontallyReference` | | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/AlignVerticallyReference` | | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/BarrierReference` | | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/ChainReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/HelperReference` for Chains. | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/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. | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/GridReference` | A HelperReference of a Grid Helper that helps enable Grid in Compose | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/HorizontalChainReference` | | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/VerticalChainReference` | | *** ** * ** *** ## Summary | ### Nested types | |---| | `public interface https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference.ConstraintReferenceFactory` | | ### Protected fields | |---|---| | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mBottomToBottom()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mBottomToTop()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mEndToEnd()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mEndToStart()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mHorizontalBias()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mLeftToLeft()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mLeftToRight()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginBottom()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginBottomGone()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginEnd()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginEndGone()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginLeft()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginLeftGone()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginRight()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginRightGone()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginStart()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginStartGone()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginTop()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mMarginTopGone()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mRightToLeft()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mRightToRight()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mStartToEnd()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mStartToStart()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mTopToBottom()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mTopToTop()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#mVerticalBias()` | | ### Public constructors | |---| | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#ConstraintReference(androidx.constraintlayout.core.state.State)(https://developer.android.com/reference/androidx/constraintlayout/core/state/State state)` | | ### Public methods | |---|---| | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#addCustomColor(java.lang.String,int)(https://developer.android.com/reference/java/lang/String.html name, int color)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#addCustomFloat(java.lang.String,float)(https://developer.android.com/reference/java/lang/String.html name, float value)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#alpha(float)(float alpha)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#apply()()` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#applyWidgetConstraints()()` apply all the constraints attributes of the mConstraintWidget | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#baseline()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#baselineToBaseline(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#baselineToBottom(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#baselineToTop(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#bias(float)(float value)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#bottom()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#bottomToBottom(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#bottomToTop(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#centerHorizontally(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#centerVertically(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#circularConstraint(java.lang.Object,float,float)(https://developer.android.com/reference/java/lang/Object.html reference, float angle, float distance)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#clear()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#clearAll()()` Clears all constraints. | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#clearHorizontal()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#clearVertical()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/widgets/ConstraintWidget` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#createConstraintWidget()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#end()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#endToEnd(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#endToStart(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getAlpha()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/widgets/ConstraintWidget` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getConstraintWidget()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/Facade` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getFacade()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/Dimension` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getHeight()()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getHorizontalChainStyle()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getHorizontalChainWeight()()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getKey()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getPivotX()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getPivotY()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getRotationX()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getRotationY()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getRotationZ()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getScaleX()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getScaleY()()` | | `https://developer.android.com/reference/java/lang/String.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getTag()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getTranslationX()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getTranslationY()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getTranslationZ()()` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getVerticalChainStyle(int)(int chainStyle)` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getVerticalChainWeight()()` | | `https://developer.android.com/reference/java/lang/Object.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getView()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/Dimension` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#getWidth()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#height(androidx.constraintlayout.core.state.Dimension)(https://developer.android.com/reference/androidx/constraintlayout/core/state/Dimension dimension)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#horizontalBias(float)(float value)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#left()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#leftToLeft(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#leftToRight(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#margin(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html marginValue)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#margin(int)(int value)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#marginGone(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html marginGoneValue)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#marginGone(int)(int value)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#pivotX(float)(float x)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#pivotY(float)(float y)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#right()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#rightToLeft(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#rightToRight(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#rotationX(float)(float x)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#rotationY(float)(float y)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#rotationZ(float)(float z)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#scaleX(float)(float x)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#scaleY(float)(float y)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setConstraintWidget(androidx.constraintlayout.core.widgets.ConstraintWidget)(https://developer.android.com/reference/androidx/constraintlayout/core/widgets/ConstraintWidget widget)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setFacade(androidx.constraintlayout.core.state.helpers.Facade)(https://developer.android.com/reference/androidx/constraintlayout/core/state/helpers/Facade facade)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setHeight(androidx.constraintlayout.core.state.Dimension)(https://developer.android.com/reference/androidx/constraintlayout/core/state/Dimension dimension)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setHorizontalChainStyle(int)(int chainStyle)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setHorizontalChainWeight(float)(float weight)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setKey(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html key)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setTag(java.lang.String)(https://developer.android.com/reference/java/lang/String.html tag)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setVerticalChainStyle(int)(int chainStyle)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setVerticalChainWeight(float)(float weight)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setView(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html view)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#setWidth(androidx.constraintlayout.core.state.Dimension)(https://developer.android.com/reference/androidx/constraintlayout/core/state/Dimension dimension)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#start()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#startToEnd(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#startToStart(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#top()()` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#topToBottom(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#topToTop(java.lang.Object)(https://developer.android.com/reference/java/lang/Object.html reference)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#translationX(float)(float x)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#translationY(float)(float y)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#translationZ(float)(float z)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#validate()()` Validate the constraints | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#verticalBias(float)(float value)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#visibility(int)(int visibility)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference` | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference#width(androidx.constraintlayout.core.state.Dimension)(https://developer.android.com/reference/androidx/constraintlayout/core/state/Dimension dimension)` | ## Protected fields ### mBottomToBottom Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mBottomToBottom ``` ### mBottomToTop Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mBottomToTop ``` ### mEndToEnd Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mEndToEnd ``` ### mEndToStart Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mEndToStart ``` ### mHorizontalBias Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected float mHorizontalBias ``` ### mLeftToLeft Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mLeftToLeft ``` ### mLeftToRight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mLeftToRight ``` ### mMarginBottom Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginBottom ``` ### mMarginBottomGone Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginBottomGone ``` ### mMarginEnd Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginEnd ``` ### mMarginEndGone Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginEndGone ``` ### mMarginLeft Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginLeft ``` ### mMarginLeftGone Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginLeftGone ``` ### mMarginRight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginRight ``` ### mMarginRightGone Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginRightGone ``` ### mMarginStart Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginStart ``` ### mMarginStartGone Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginStartGone ``` ### mMarginTop Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginTop ``` ### mMarginTopGone Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected int mMarginTopGone ``` ### mRightToLeft Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mRightToLeft ``` ### mRightToRight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mRightToRight ``` ### mStartToEnd Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mStartToEnd ``` ### mStartToStart Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mStartToStart ``` ### mTopToBottom Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mTopToBottom ``` ### mTopToTop Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected Object mTopToTop ``` ### mVerticalBias Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` protected float mVerticalBias ``` ## Public constructors ### ConstraintReference Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference(State state) ``` ## Public methods ### addCustomColor Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void addCustomColor(String name, int color) ``` ### addCustomFloat Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void addCustomFloat(String name, float value) ``` ### alpha Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference alpha(float alpha) ``` ### apply Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void apply() ``` ### applyWidgetConstraints Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void applyWidgetConstraints() ``` apply all the constraints attributes of the mConstraintWidget ### baseline Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference baseline() ``` ### baselineToBaseline Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference baselineToBaseline(Object reference) ``` ### baselineToBottom Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference baselineToBottom(Object reference) ``` ### baselineToTop Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference baselineToTop(Object reference) ``` ### bias Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference bias(float value) ``` ### bottom Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference bottom() ``` ### bottomToBottom Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference bottomToBottom(Object reference) ``` ### bottomToTop Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference bottomToTop(Object reference) ``` ### centerHorizontally Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference centerHorizontally(Object reference) ``` ### centerVertically Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference centerVertically(Object reference) ``` ### circularConstraint Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference circularConstraint(Object reference, float angle, float distance) ``` ### clear Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference clear() ``` ### clearAll Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference clearAll() ``` Clears all constraints. ### clearHorizontal Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference clearHorizontal() ``` ### clearVertical Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference clearVertical() ``` ### createConstraintWidget Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintWidget createConstraintWidget() ``` ### end Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference end() ``` ### endToEnd Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference endToEnd(Object reference) ``` ### endToStart Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference endToStart(Object reference) ``` ### getAlpha Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getAlpha() ``` ### getConstraintWidget Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintWidget getConstraintWidget() ``` ### getFacade Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public Facade getFacade() ``` ### getHeight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public Dimension getHeight() ``` ### getHorizontalChainStyle Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public int getHorizontalChainStyle() ``` ### getHorizontalChainWeight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getHorizontalChainWeight() ``` ### getKey Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public Object getKey() ``` ### getPivotX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getPivotX() ``` ### getPivotY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getPivotY() ``` ### getRotationX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getRotationX() ``` ### getRotationY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getRotationY() ``` ### getRotationZ Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getRotationZ() ``` ### getScaleX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getScaleX() ``` ### getScaleY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getScaleY() ``` ### getTag Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public String getTag() ``` ### getTranslationX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getTranslationX() ``` ### getTranslationY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getTranslationY() ``` ### getTranslationZ Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getTranslationZ() ``` ### getVerticalChainStyle Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public int getVerticalChainStyle(int chainStyle) ``` ### getVerticalChainWeight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getVerticalChainWeight() ``` ### getView Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public Object getView() ``` ### getWidth Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public Dimension getWidth() ``` ### height Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference height(Dimension dimension) ``` ### horizontalBias Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference horizontalBias(float value) ``` ### left Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference left() ``` ### leftToLeft Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference leftToLeft(Object reference) ``` ### leftToRight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference leftToRight(Object reference) ``` ### margin Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference margin(Object marginValue) ``` ### margin Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference margin(int value) ``` ### marginGone Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference marginGone(Object marginGoneValue) ``` ### marginGone Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference marginGone(int value) ``` ### pivotX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference pivotX(float x) ``` ### pivotY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference pivotY(float y) ``` ### right Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference right() ``` ### rightToLeft Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference rightToLeft(Object reference) ``` ### rightToRight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference rightToRight(Object reference) ``` ### rotationX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference rotationX(float x) ``` ### rotationY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference rotationY(float y) ``` ### rotationZ Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference rotationZ(float z) ``` ### scaleX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference scaleX(float x) ``` ### scaleY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference scaleY(float y) ``` ### setConstraintWidget Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setConstraintWidget(ConstraintWidget widget) ``` ### setFacade Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setFacade(Facade facade) ``` ### setHeight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference setHeight(Dimension dimension) ``` ### setHorizontalChainStyle Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setHorizontalChainStyle(int chainStyle) ``` ### setHorizontalChainWeight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setHorizontalChainWeight(float weight) ``` ### setKey Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setKey(Object key) ``` ### setTag Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setTag(String tag) ``` ### setVerticalChainStyle Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setVerticalChainStyle(int chainStyle) ``` ### setVerticalChainWeight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setVerticalChainWeight(float weight) ``` ### setView Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setView(Object view) ``` ### setWidth Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference setWidth(Dimension dimension) ``` ### start Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference start() ``` ### startToEnd Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference startToEnd(Object reference) ``` ### startToStart Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference startToStart(Object reference) ``` ### top Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference top() ``` ### topToBottom Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference topToBottom(Object reference) ``` ### topToTop Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference topToTop(Object reference) ``` ### translationX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference translationX(float x) ``` ### translationY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference translationY(float y) ``` ### translationZ Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference translationZ(float z) ``` ### validate Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void validate() ``` Validate the constraints | Throws | |---|---| | `https://developer.android.com/reference/androidx/constraintlayout/core/state/ConstraintReference.IncorrectConstraintException` | | ### verticalBias Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference verticalBias(float value) ``` ### visibility Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference visibility(int visibility) ``` ### width Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public ConstraintReference width(Dimension dimension) ```