androidx.constraintlayout.core.widgets

Class VirtualLayout

java.lang.Object

androidx.constraintlayout.core.widgets.ConstraintWidget

androidx.constraintlayout.core.widgets.HelperWidget

androidx.constraintlayout.core.widgets.VirtualLayout

All Implemented Interfaces:

Helper

Direct Known Subclasses:

Flow, Placeholder

public class VirtualLayout
extends HelperWidget

Nested Class Summary

Nested classes/interfaces inherited from class androidx.constraintlayout.core.widgets.ConstraintWidget

ConstraintWidget.DimensionBehaviour

Field Summary

Fields

Modifier and Type	Field and Description
protected BasicMeasure.Measure	mMeasure

Fields inherited from class androidx.constraintlayout.core.widgets.HelperWidget

mWidgets, mWidgetsCount

Fields inherited from class androidx.constraintlayout.core.widgets.ConstraintWidget

ANCHOR_BASELINE, ANCHOR_BOTTOM, ANCHOR_LEFT, ANCHOR_RIGHT, ANCHOR_TOP, BOTH, CHAIN_PACKED, CHAIN_SPREAD, CHAIN_SPREAD_INSIDE, DEFAULT_BIAS, DIRECT, frame, GONE, HORIZONTAL, horizontalChainRun, horizontalGroup, horizontalRun, INVISIBLE, isTerminalWidget, mAnchors, MATCH_CONSTRAINT_PERCENT, MATCH_CONSTRAINT_RATIO, MATCH_CONSTRAINT_RATIO_RESOLVED, MATCH_CONSTRAINT_SPREAD, MATCH_CONSTRAINT_WRAP, mBaseline, mBottom, mCenter, mDimensionRatio, mDimensionRatioSide, measured, mHorizontalResolution, mIsHeightWrapContent, mIsWidthWrapContent, mLeft, mListAnchors, mListDimensionBehaviors, mListNextMatchConstraintsWidget, mMatchConstraintDefaultHeight, mMatchConstraintDefaultWidth, mMatchConstraintMaxHeight, mMatchConstraintMaxWidth, mMatchConstraintMinHeight, mMatchConstraintMinWidth, mMatchConstraintPercentHeight, mMatchConstraintPercentWidth, mMinHeight, mMinWidth, mNextChainWidget, mOffsetX, mOffsetY, mParent, mResolvedMatchConstraintDefault, mRight, mTop, mVerticalResolution, mWeight, mX, mY, run, SOLVER, stringId, UNKNOWN, VERTICAL, verticalChainRun, verticalGroup, verticalRun, VISIBLE, WRAP_BEHAVIOR_HORIZONTAL_ONLY, WRAP_BEHAVIOR_INCLUDED, WRAP_BEHAVIOR_SKIPPED, WRAP_BEHAVIOR_VERTICAL_ONLY

Constructor Summary

Constructors

Constructor and Description
VirtualLayout()

Method Summary

Modifier and Type	Method and Description
void	applyRtl(boolean isRtl)
void	captureWidgets()
boolean	contains(java.util.HashSet<ConstraintWidget> widgets)
int	getMeasuredHeight()
int	getMeasuredWidth()
int	getPaddingBottom()
int	getPaddingLeft()
int	getPaddingRight()
int	getPaddingTop()
protected void	measure(ConstraintWidget widget, ConstraintWidget.DimensionBehaviour horizontalBehavior, int horizontalDimension, ConstraintWidget.DimensionBehaviour verticalBehavior, int verticalDimension)
void	measure(int widthMode, int widthSize, int heightMode, int heightSize)
protected boolean	measureChildren()
protected void	needsCallbackFromSolver(boolean value)
boolean	needSolverPass()
void	setMeasure(int width, int height)
void	setPadding(int value)
void	setPaddingBottom(int value)
void	setPaddingEnd(int value)
void	setPaddingLeft(int value)
void	setPaddingRight(int value)
void	setPaddingStart(int value)
void	setPaddingTop(int value)
void	updateConstraints(ConstraintWidgetContainer container)

Methods inherited from class androidx.constraintlayout.core.widgets.HelperWidget

add, addDependents, copy, findGroupInDependents, removeAllIds

Methods inherited from class androidx.constraintlayout.core.widgets.ConstraintWidget

addChildrenToSolverByDependency, addToSolver, allowedInBarrier, connect, connect, connect, connectCircularConstraint, createObjectVariables, ensureMeasureRequested, ensureWidgetRuns, getAnchor, getAnchors, getBaselineDistance, getBiasPercent, getBottom, getCompanionWidget, getContainerItemSkip, getDebugName, getDimensionBehaviour, getDimensionRatio, getDimensionRatioSide, getHasBaseline, getHeight, getHorizontalBiasPercent, getHorizontalChainControlWidget, getHorizontalChainStyle, getHorizontalDimensionBehaviour, getHorizontalMargin, getLastHorizontalMeasureSpec, getLastVerticalMeasureSpec, getLeft, getLength, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getNextChainMember, getOptimizerWrapHeight, getOptimizerWrapWidth, getParent, getPreviousChainMember, getRight, getRootX, getRootY, getRun, getSceneString, getTop, getType, getVerticalBiasPercent, getVerticalChainControlWidget, getVerticalChainStyle, getVerticalDimensionBehaviour, getVerticalMargin, getVisibility, getWidth, getWrapBehaviorInParent, getX, getY, hasBaseline, hasDanglingDimension, hasDependencies, hasDimensionOverride, hasResolvedTargets, immediateConnect, isHeightWrapContent, isHorizontalSolvingPassDone, isInBarrier, isInHorizontalChain, isInPlaceholder, isInVerticalChain, isInVirtualLayout, isMeasureRequested, isResolvedHorizontally, isResolvedVertically, isRoot, isSpreadHeight, isSpreadWidth, isVerticalSolvingPassDone, isWidthWrapContent, markHorizontalSolvingPassDone, markVerticalSolvingPassDone, oppositeDimensionDependsOn, oppositeDimensionsTied, reset, resetAllConstraints, resetAnchor, resetAnchors, resetFinalResolution, resetSolverVariables, resetSolvingPassFlag, serialize, setBaselineDistance, setCompanionWidget, setContainerItemSkip, setDebugName, setDebugSolverName, setDimension, setDimensionRatio, setDimensionRatio, setFinalBaseline, setFinalFrame, setFinalHorizontal, setFinalLeft, setFinalTop, setFinalVertical, setFrame, setFrame, setGoneMargin, setHasBaseline, setHeight, setHeightWrapContent, setHorizontalBiasPercent, setHorizontalChainStyle, setHorizontalDimension, setHorizontalDimensionBehaviour, setHorizontalMatchStyle, setHorizontalWeight, setInBarrier, setInPlaceholder, setInVirtualLayout, setLastMeasureSpec, setLength, setMaxHeight, setMaxWidth, setMeasureRequested, setMinHeight, setMinWidth, setOffset, setOrigin, setParent, setType, setupDimensionRatio, setVerticalBiasPercent, setVerticalChainStyle, setVerticalDimension, setVerticalDimensionBehaviour, setVerticalMatchStyle, setVerticalWeight, setVisibility, setWidth, setWidthWrapContent, setWrapBehaviorInParent, setX, setY, toString, updateFromRuns, updateFromSolver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

mMeasure

protected BasicMeasure.Measure mMeasure

Constructor Detail

VirtualLayout

public VirtualLayout()

Method Detail

setPadding

public void setPadding(int value)

setPaddingStart

public void setPaddingStart(int value)

setPaddingEnd

public void setPaddingEnd(int value)

setPaddingLeft

public void setPaddingLeft(int value)

applyRtl

public void applyRtl(boolean isRtl)

setPaddingTop

public void setPaddingTop(int value)

setPaddingRight

public void setPaddingRight(int value)

setPaddingBottom

public void setPaddingBottom(int value)

getPaddingTop

public int getPaddingTop()

getPaddingBottom

public int getPaddingBottom()

getPaddingLeft

public int getPaddingLeft()

getPaddingRight

public int getPaddingRight()

needsCallbackFromSolver

protected void needsCallbackFromSolver(boolean value)

needSolverPass

public boolean needSolverPass()

measure

public void measure(int widthMode,
                    int widthSize,
                    int heightMode,
                    int heightSize)

updateConstraints

public void updateConstraints(ConstraintWidgetContainer container)

Specified by:

updateConstraints in interface Helper

Overrides:

updateConstraints in class HelperWidget

captureWidgets

public void captureWidgets()

getMeasuredWidth

public int getMeasuredWidth()

getMeasuredHeight

public int getMeasuredHeight()

setMeasure

public void setMeasure(int width,
                       int height)

measureChildren

protected boolean measureChildren()

measure

protected void measure(ConstraintWidget widget,
                       ConstraintWidget.DimensionBehaviour horizontalBehavior,
                       int horizontalDimension,
                       ConstraintWidget.DimensionBehaviour verticalBehavior,
                       int verticalDimension)

contains

public boolean contains(java.util.HashSet<ConstraintWidget> widgets)