androidx.constraintlayout.core.widgets

Class WidgetContainer

java.lang.Object

androidx.constraintlayout.core.widgets.ConstraintWidget

androidx.constraintlayout.core.widgets.WidgetContainer

Direct Known Subclasses:

ConstraintWidgetContainer

public class WidgetContainer
extends ConstraintWidget

A container of ConstraintWidget

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
java.util.ArrayList<ConstraintWidget>	mChildren

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
WidgetContainer() Default constructor
WidgetContainer(int width, int height) Constructor
WidgetContainer(int x, int y, int width, int height) Constructor

Method Summary

Modifier and Type	Method and Description
void	add(ConstraintWidget... widgets) Add multiple child widgets.
void	add(ConstraintWidget widget) Add a child widget
java.util.ArrayList<ConstraintWidget>	getChildren() Access the children
ConstraintWidgetContainer	getRootConstraintContainer() Return the top-level ConstraintWidgetContainer
void	layout() Function implemented by ConstraintWidgetContainer
void	remove(ConstraintWidget widget) Remove a child widget
void	removeAllChildren()
void	reset()
void	resetSolverVariables(Cache cache) Reset the solver variables of the anchors
void	setOffset(int x, int y) Set the offset of this widget relative to the root widget.

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

addChildrenToSolverByDependency, addToSolver, allowedInBarrier, connect, connect, connect, connectCircularConstraint, copy, 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, isAnimated, isHeightWrapContent, isHorizontalSolvingPassDone, isInBarrier, isInHorizontalChain, isInPlaceholder, isInVerticalChain, isInVirtualLayout, isMeasureRequested, isResolvedHorizontally, isResolvedVertically, isRoot, isSpreadHeight, isSpreadWidth, isVerticalSolvingPassDone, isWidthWrapContent, markHorizontalSolvingPassDone, markVerticalSolvingPassDone, oppositeDimensionDependsOn, oppositeDimensionsTied, resetAllConstraints, resetAnchor, resetAnchors, resetFinalResolution, resetSolvingPassFlag, serialize, setAnimated, 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, 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

mChildren

public java.util.ArrayList<ConstraintWidget> mChildren

Constructor Detail

WidgetContainer

public WidgetContainer()

Default constructor

WidgetContainer

public WidgetContainer(int x,
                       int y,
                       int width,
                       int height)

Constructor

Parameters:

x - x position

y - y position

width - width of the layout

height - height of the layout

WidgetContainer

public WidgetContainer(int width,
                       int height)

Constructor

Parameters:

width - width of the layout

height - height of the layout

Method Detail

reset

public void reset()

Overrides:

reset in class ConstraintWidget

add

public void add(ConstraintWidget widget)

Add a child widget

Parameters:

widget - to add

add

public void add(ConstraintWidget... widgets)

Add multiple child widgets.

Parameters:

widgets - to add

remove

public void remove(ConstraintWidget widget)

Remove a child widget

Parameters:

widget - to remove

getChildren

public java.util.ArrayList<ConstraintWidget> getChildren()

Access the children

Returns:

the array of children

getRootConstraintContainer

public ConstraintWidgetContainer getRootConstraintContainer()

Return the top-level ConstraintWidgetContainer

Returns:

top-level ConstraintWidgetContainer

setOffset

public void setOffset(int x,
                      int y)

Set the offset of this widget relative to the root widget. We then set the offset of our children as well.

Overrides:

setOffset in class ConstraintWidget

Parameters:

x - horizontal offset

y - vertical offset

layout

public void layout()

Function implemented by ConstraintWidgetContainer

resetSolverVariables

public void resetSolverVariables(Cache cache)

Description copied from class: ConstraintWidget

Reset the solver variables of the anchors

Overrides:

resetSolverVariables in class ConstraintWidget

removeAllChildren

public void removeAllChildren()