Flow

Artifact: androidx.constraintlayout:constraintlayout

Added in 2.2.2

Kotlin |Java

class Flow : VirtualLayout

kotlin.Any
↳	android.view.View
	↳	androidx.constraintlayout.widget.ConstraintHelper
		↳	androidx.constraintlayout.widget.VirtualLayout
			↳	androidx.constraintlayout.helper.widget.Flow

Flow VirtualLayout. Added in 2.0 Allows positioning of referenced widgets horizontally or vertically, similar to a Chain. The elements referenced are indicated via constraint_referenced_ids, as with other ConstraintHelper implementations. Those referenced widgets are then laid out by the Flow virtual layout in three possible ways:

wrap none : simply create a chain out of the referenced elements
wrap chain : create multiple chains (one after the other) if the referenced elements do not fit
wrap aligned : similar to wrap chain, but will align the elements by creating rows and columns

As VirtualLayouts are ConstraintHelpers, they are normal views; you can thus treat them as such, and setting up constraints on them (position, dimension) or some view attributes (background, padding) will work. The main difference between VirtualLayouts and ViewGroups is that:

VirtualLayout keep the hierarchy flat
Other views can thus reference / constrain to not only the VirtualLayout, but also the views laid out by the VirtualLayout
VirtualLayout allow on the fly behavior modifications (e.g. for Flow, changing the orientation)

flow_wrapMode = "none"

This will simply create an horizontal or vertical chain out of the referenced widgets. This is the default behavior of Flow. XML attributes that are allowed in this mode:

flow_horizontalStyle = "spread|spread_inside|packed"
flow_verticalStyle = "spread|spread_inside|packed"
flow_horizontalBias = "float"
flow_verticalBias = "float"
flow_horizontalGap = "dimension"
flow_verticalGap = "dimension"
flow_horizontalAlign = "start|end"
flow_verticalAlign = "top|bottom|center|baseline

While the elements are laid out as a chain in the orientation defined, the way they are laid out in the other dimension is controlled by flow_horizontalAlign and flow_verticalAlign attributes.

flow_wrapMode = "chain"

Similar to wrap none in terms of creating chains, but if the referenced widgets do not fit the horizontal or vertical dimension (depending on the orientation picked), they will wrap around to the next line / column. XML attributes are the same same as in wrap_none, with the addition of attributes specifying chain style and chain bias applied to the first chain. This way, it is possible to specify different chain behavior between the first chain and the rest of the chains eventually created.

flow_firstHorizontalStyle = "spread|spread_inside|packed"
flow_firstVerticalStyle = "spread|spread_inside|packed"
flow_firstHorizontalBias = "float"
flow_firstVerticalBias = "float"

One last important attribute is flow_maxElementsWrap, which specify the number of elements before wrapping, regardless if they fit or not in the available space.

flow_wrapMode = "aligned"

Same XML attributes as for WRAP_CHAIN, with the difference that the elements are going to be laid out in a set of rows and columns instead of chains. The attribute specifying chains style and bias are thus not going to be applied.

Summary

Constants
`const Int`	`CHAIN_PACKED = 2`
`const Int`	`CHAIN_SPREAD = 0`
`const Int`	`CHAIN_SPREAD_INSIDE = 1`
`const Int`	`HORIZONTAL = 0`
`const Int`	`HORIZONTAL_ALIGN_CENTER = 2`
`const Int`	`HORIZONTAL_ALIGN_END = 1`
`const Int`	`HORIZONTAL_ALIGN_START = 0`
`const Int`	`VERTICAL = 1`
`const Int`	`VERTICAL_ALIGN_BASELINE = 3`
`const Int`	`VERTICAL_ALIGN_BOTTOM = 1`
`const Int`	`VERTICAL_ALIGN_CENTER = 2`
`const Int`	`VERTICAL_ALIGN_TOP = 0`
`const Int`	`WRAP_ALIGNED = 2`
`const Int`	`WRAP_CHAIN = 1`
`const Int`	`WRAP_NONE = 0`

Public constructors
`Flow(context: Context!)`
`Flow(context: Context!, attrs: AttributeSet!)`
`Flow(context: Context!, attrs: AttributeSet!, defStyleAttr: Int)`

Public functions
`Unit`	`loadParameters( constraint: ConstraintSet.Constraint!, child: HelperWidget!, layoutParams: ConstraintLayout.LayoutParams!, mapIdToWidget: SparseArray<ConstraintWidget!>! )`
`Unit`	`onMeasure( layout: VirtualLayout!, widthMeasureSpec: Int, heightMeasureSpec: Int )`
`Unit`	`resolveRtl(widget: ConstraintWidget!, isRtl: Boolean)`
`Unit`	`setFirstHorizontalBias(bias: Float)` Similar to setHorizontalBias(), but only applied to the first chain.
`Unit`	`setFirstHorizontalStyle(style: Int)` Similar to setHorizontalStyle(), but only applies to the first chain.
`Unit`	`setFirstVerticalBias(bias: Float)` Similar to setVerticalBias(), but only applied to the first chain.
`Unit`	`setFirstVerticalStyle(style: Int)` Similar to setVerticalStyle(), but only applies to the first chain.
`Unit`	`setHorizontalAlign(align: Int)` Set up the horizontal alignment of the elements in the layout, if the layout orientation is set to Flow.VERTICAL Can be either: Flow.HORIZONTAL_ALIGN_START Flow.HORIZONTAL_ALIGN_END Flow.HORIZONTAL_ALIGN_CENTER
`Unit`	`setHorizontalBias(bias: Float)` Set the horizontal bias applied to the chain
`Unit`	`setHorizontalGap(gap: Int)` Set up the horizontal gap between elements
`Unit`	`setHorizontalStyle(style: Int)` Set horizontal chain style.
`Unit`	`setLastHorizontalBias(bias: Float)` Set the bias of the last Horizontal column.
`Unit`	`setLastHorizontalStyle(style: Int)` Set the style of the last Horizontal column.
`Unit`	`setLastVerticalBias(bias: Float)` Set the bias of the last vertical row.
`Unit`	`setLastVerticalStyle(style: Int)` Set the style of the last vertical row.
`Unit`	`setMaxElementsWrap(max: Int)` Set up the maximum number of elements before wrapping.
`Unit`	`setOrientation(orientation: Int)` Set the orientation of the layout
`Unit`	`setPadding(padding: Int)` Set padding around the content
`Unit`	`setPaddingBottom(paddingBottom: Int)` Set padding bottom around the content
`Unit`	`setPaddingLeft(paddingLeft: Int)` Set padding left around the content
`Unit`	`setPaddingRight(paddingRight: Int)` Set padding right around the content
`Unit`	`setPaddingTop(paddingTop: Int)` Set padding top around the content
`Unit`	`setVerticalAlign(align: Int)` Set up the vertical alignment of the elements in the layout, if the layout orientation is set to Flow.HORIZONTAL Can be either: Flow.VERTICAL_ALIGN_TOP Flow.VERTICAL_ALIGN_BOTTOM Flow.VERTICAL_ALIGN_CENTER Flow.VERTICAL_ALIGN_BASELINE
`Unit`	`setVerticalBias(bias: Float)` Set the vertical bias applied to the chain
`Unit`	`setVerticalGap(gap: Int)` Set up the vertical gap between elements
`Unit`	`setVerticalStyle(style: Int)` Set vertical chain style.
`Unit`	`setWrapMode(mode: Int)` Set wrap mode for the layout.

Protected functions
`Unit`	`init(attrs: AttributeSet!)`
`Unit`	`onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int)`

Inherited Constants

From androidx.constraintlayout.widget.ConstraintHelper

const String!

CHILD_TAG = "CONSTRAINT_LAYOUT_HELPER_CHILD"

From android.view.View

`const Int`	`ACCESSIBILITY_DATA_SENSITIVE_AUTO = 0`
`const Int`	`ACCESSIBILITY_DATA_SENSITIVE_NO = 2`
`const Int`	`ACCESSIBILITY_DATA_SENSITIVE_YES = 1`
`const Int`	`ACCESSIBILITY_LIVE_REGION_ASSERTIVE = 2`
`const Int`	`ACCESSIBILITY_LIVE_REGION_NONE = 0`
`const Int`	`ACCESSIBILITY_LIVE_REGION_POLITE = 1`
`const Property<View!, Float!>!`	`ALPHA`
`const Int`	`AUTOFILL_FLAG_INCLUDE_NOT_IMPORTANT_VIEWS = 1`
`const String!`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DATE = "creditCardExpirationDate"`
`const String!`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DAY = "creditCardExpirationDay"`
`const String!`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_MONTH = "creditCardExpirationMonth"`
`const String!`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_YEAR = "creditCardExpirationYear"`
`const String!`	`AUTOFILL_HINT_CREDIT_CARD_NUMBER = "creditCardNumber"`
`const String!`	`AUTOFILL_HINT_CREDIT_CARD_SECURITY_CODE = "creditCardSecurityCode"`
`const String!`	`AUTOFILL_HINT_EMAIL_ADDRESS = "emailAddress"`
`const String!`	`AUTOFILL_HINT_NAME = "name"`
`const String!`	`AUTOFILL_HINT_PASSWORD = "password"`
`const String!`	`AUTOFILL_HINT_PHONE = "phone"`
`const String!`	`AUTOFILL_HINT_POSTAL_ADDRESS = "postalAddress"`
`const String!`	`AUTOFILL_HINT_POSTAL_CODE = "postalCode"`
`const String!`	`AUTOFILL_HINT_USERNAME = "username"`
`const Int`	`AUTOFILL_TYPE_DATE = 4`
`const Int`	`AUTOFILL_TYPE_LIST = 3`
`const Int`	`AUTOFILL_TYPE_NONE = 0`
`const Int`	`AUTOFILL_TYPE_TEXT = 1`
`const Int`	`AUTOFILL_TYPE_TOGGLE = 2`
`const Int`	`CONTENT_SENSITIVITY_AUTO = 0`
`const Int`	`CONTENT_SENSITIVITY_NOT_SENSITIVE = 2`
`const Int`	`CONTENT_SENSITIVITY_SENSITIVE = 1`
`const Int`	`DRAG_FLAG_ACCESSIBILITY_ACTION = 1024`
`const Int`	`DRAG_FLAG_GLOBAL = 256`
`const Int`	`DRAG_FLAG_GLOBAL_PERSISTABLE_URI_PERMISSION = 64`
`const Int`	`DRAG_FLAG_GLOBAL_PREFIX_URI_PERMISSION = 128`
`const Int`	`DRAG_FLAG_GLOBAL_SAME_APPLICATION = 4096`
`const Int`	`DRAG_FLAG_GLOBAL_URI_READ = 1`
`const Int`	`DRAG_FLAG_GLOBAL_URI_WRITE = 2`
`const Int`	`DRAG_FLAG_HIDE_CALLING_TASK_ON_DRAG_START = 16384`
`const Int`	`DRAG_FLAG_OPAQUE = 512`
`const Int`	`DRAG_FLAG_START_INTENT_SENDER_ON_UNHANDLED_DRAG = 8192`
`const Int`	`DRAWING_CACHE_QUALITY_AUTO = 0` This property is deprecated.
`const Int`	`DRAWING_CACHE_QUALITY_HIGH = 1048576` This property is deprecated.
`const Int`	`DRAWING_CACHE_QUALITY_LOW = 524288` This property is deprecated.
`const Array<Int>!`	`EMPTY_STATE_SET`
`const Array<Int>!`	`ENABLED_FOCUSED_SELECTED_STATE_SET`
`const Array<Int>!`	`ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`ENABLED_FOCUSED_STATE_SET`
`const Array<Int>!`	`ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`ENABLED_SELECTED_STATE_SET`
`const Array<Int>!`	`ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`ENABLED_STATE_SET`
`const Array<Int>!`	`ENABLED_WINDOW_FOCUSED_STATE_SET`
`const Int`	`FIND_VIEWS_WITH_CONTENT_DESCRIPTION = 2`
`const Int`	`FIND_VIEWS_WITH_TEXT = 1`
`const Int`	`FOCUSABLE = 1`
`const Int`	`FOCUSABLES_ALL = 0`
`const Int`	`FOCUSABLES_TOUCH_MODE = 1`
`const Int`	`FOCUSABLE_AUTO = 16`
`const Array<Int>!`	`FOCUSED_SELECTED_STATE_SET`
`const Array<Int>!`	`FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`FOCUSED_STATE_SET`
`const Array<Int>!`	`FOCUSED_WINDOW_FOCUSED_STATE_SET`
`const Int`	`FOCUS_BACKWARD = 1`
`const Int`	`FOCUS_DOWN = 130`
`const Int`	`FOCUS_FORWARD = 2`
`const Int`	`FOCUS_LEFT = 17`
`const Int`	`FOCUS_RIGHT = 66`
`const Int`	`FOCUS_UP = 33`
`const Int`	`GONE = 8`
`const Int`	`HAPTIC_FEEDBACK_ENABLED = 268435456`
`const Int`	`IMPORTANT_FOR_ACCESSIBILITY_AUTO = 0`
`const Int`	`IMPORTANT_FOR_ACCESSIBILITY_NO = 2`
`const Int`	`IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS = 4`
`const Int`	`IMPORTANT_FOR_ACCESSIBILITY_YES = 1`
`const Int`	`IMPORTANT_FOR_AUTOFILL_AUTO = 0`
`const Int`	`IMPORTANT_FOR_AUTOFILL_NO = 2`
`const Int`	`IMPORTANT_FOR_AUTOFILL_NO_EXCLUDE_DESCENDANTS = 8`
`const Int`	`IMPORTANT_FOR_AUTOFILL_YES = 1`
`const Int`	`IMPORTANT_FOR_AUTOFILL_YES_EXCLUDE_DESCENDANTS = 4`
`const Int`	`IMPORTANT_FOR_CONTENT_CAPTURE_AUTO = 0`
`const Int`	`IMPORTANT_FOR_CONTENT_CAPTURE_NO = 2`
`const Int`	`IMPORTANT_FOR_CONTENT_CAPTURE_NO_EXCLUDE_DESCENDANTS = 8`
`const Int`	`IMPORTANT_FOR_CONTENT_CAPTURE_YES = 1`
`const Int`	`IMPORTANT_FOR_CONTENT_CAPTURE_YES_EXCLUDE_DESCENDANTS = 4`
`const Int`	`INVISIBLE = 4`
`const Int`	`KEEP_SCREEN_ON = 67108864`
`const Int`	`LAYER_TYPE_HARDWARE = 2`
`const Int`	`LAYER_TYPE_NONE = 0`
`const Int`	`LAYER_TYPE_SOFTWARE = 1`
`const Int`	`LAYOUT_DIRECTION_INHERIT = 2`
`const Int`	`LAYOUT_DIRECTION_LOCALE = 3`
`const Int`	`LAYOUT_DIRECTION_LTR = 0`
`const Int`	`LAYOUT_DIRECTION_RTL = 1`
`const Int`	`MEASURED_HEIGHT_STATE_SHIFT = 16`
`const Int`	`MEASURED_SIZE_MASK = 16777215`
`const Int`	`MEASURED_STATE_MASK = -16777216`
`const Int`	`MEASURED_STATE_TOO_SMALL = 16777216`
`const Int`	`NOT_FOCUSABLE = 0`
`const Int`	`NO_ID = -1`
`const Int`	`OVER_SCROLL_ALWAYS = 0`
`const Int`	`OVER_SCROLL_IF_CONTENT_SCROLLS = 1`
`const Int`	`OVER_SCROLL_NEVER = 2`
`const Int`	`POINTER_CAPTURE_MODE_ABSOLUTE = 1`
`const Int`	`POINTER_CAPTURE_MODE_RELATIVE = 2`
`const Int`	`POINTER_CAPTURE_MODE_UNCAPTURED = 0`
`const Array<Int>!`	`PRESSED_ENABLED_FOCUSED_SELECTED_STATE_SET`
`const Array<Int>!`	`PRESSED_ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_ENABLED_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_ENABLED_SELECTED_STATE_SET`
`const Array<Int>!`	`PRESSED_ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_ENABLED_STATE_SET`
`const Array<Int>!`	`PRESSED_ENABLED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_FOCUSED_SELECTED_STATE_SET`
`const Array<Int>!`	`PRESSED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_SELECTED_STATE_SET`
`const Array<Int>!`	`PRESSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const Array<Int>!`	`PRESSED_STATE_SET`
`const Array<Int>!`	`PRESSED_WINDOW_FOCUSED_STATE_SET`
`const Int`	`RECTANGLE_ON_SCREEN_REQUEST_SOURCE_INPUT_FOCUS = 3`
`const Int`	`RECTANGLE_ON_SCREEN_REQUEST_SOURCE_SCROLL_ONLY = 1`
`const Int`	`RECTANGLE_ON_SCREEN_REQUEST_SOURCE_TEXT_CURSOR = 2`
`const Int`	`RECTANGLE_ON_SCREEN_REQUEST_SOURCE_UNDEFINED = 0`
`const Float`	`REQUESTED_FRAME_RATE_CATEGORY_DEFAULT`
`const Float`	`REQUESTED_FRAME_RATE_CATEGORY_HIGH = -4.0f`
`const Float`	`REQUESTED_FRAME_RATE_CATEGORY_LOW = -2.0f`
`const Float`	`REQUESTED_FRAME_RATE_CATEGORY_NORMAL = -3.0f`
`const Float`	`REQUESTED_FRAME_RATE_CATEGORY_NO_PREFERENCE = -1.0f`
`const Property<View!, Float!>!`	`ROTATION`
`const Property<View!, Float!>!`	`ROTATION_X`
`const Property<View!, Float!>!`	`ROTATION_Y`
`const Property<View!, Float!>!`	`SCALE_X`
`const Property<View!, Float!>!`	`SCALE_Y`
`const Int`	`SCREEN_STATE_OFF = 0`
`const Int`	`SCREEN_STATE_ON = 1`
`const Int`	`SCROLLBARS_INSIDE_INSET = 16777216`
`const Int`	`SCROLLBARS_INSIDE_OVERLAY = 0`
`const Int`	`SCROLLBARS_OUTSIDE_INSET = 50331648`
`const Int`	`SCROLLBARS_OUTSIDE_OVERLAY = 33554432`
`const Int`	`SCROLLBAR_POSITION_DEFAULT = 0`
`const Int`	`SCROLLBAR_POSITION_LEFT = 1`
`const Int`	`SCROLLBAR_POSITION_RIGHT = 2`
`const Int`	`SCROLL_AXIS_HORIZONTAL = 1`
`const Int`	`SCROLL_AXIS_NONE = 0`
`const Int`	`SCROLL_AXIS_VERTICAL = 2`
`const Int`	`SCROLL_CAPTURE_HINT_AUTO = 0`
`const Int`	`SCROLL_CAPTURE_HINT_EXCLUDE = 1`
`const Int`	`SCROLL_CAPTURE_HINT_EXCLUDE_DESCENDANTS = 4`
`const Int`	`SCROLL_CAPTURE_HINT_INCLUDE = 2`
`const Int`	`SCROLL_INDICATOR_BOTTOM = 2`
`const Int`	`SCROLL_INDICATOR_END = 32`
`const Int`	`SCROLL_INDICATOR_LEFT = 4`
`const Int`	`SCROLL_INDICATOR_RIGHT = 8`
`const Int`	`SCROLL_INDICATOR_START = 16`
`const Int`	`SCROLL_INDICATOR_TOP = 1`
`const Array<Int>!`	`SELECTED_STATE_SET`
`const Array<Int>!`	`SELECTED_WINDOW_FOCUSED_STATE_SET`
`const Int`	`SOUND_EFFECTS_ENABLED = 134217728`
`const Int`	`STATUS_BAR_HIDDEN = 1` This property is deprecated.
`const Int`	`STATUS_BAR_VISIBLE = 0` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_FULLSCREEN = 4` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_HIDE_NAVIGATION = 2` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_IMMERSIVE = 2048` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_IMMERSIVE_STICKY = 4096` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN = 1024` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION = 512` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_LAYOUT_STABLE = 256` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR = 16` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_LIGHT_STATUS_BAR = 8192` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_LOW_PROFILE = 1` This property is deprecated.
`const Int`	`SYSTEM_UI_FLAG_VISIBLE = 0` This property is deprecated.
`const Int`	`SYSTEM_UI_LAYOUT_FLAGS = 1536` This property is deprecated.
`const Int`	`TEXT_ALIGNMENT_CENTER = 4`
`const Int`	`TEXT_ALIGNMENT_GRAVITY = 1`
`const Int`	`TEXT_ALIGNMENT_INHERIT = 0`
`const Int`	`TEXT_ALIGNMENT_TEXT_END = 3`
`const Int`	`TEXT_ALIGNMENT_TEXT_START = 2`
`const Int`	`TEXT_ALIGNMENT_VIEW_END = 6`
`const Int`	`TEXT_ALIGNMENT_VIEW_START = 5`
`const Int`	`TEXT_DIRECTION_ANY_RTL = 2`
`const Int`	`TEXT_DIRECTION_FIRST_STRONG = 1`
`const Int`	`TEXT_DIRECTION_FIRST_STRONG_LTR = 6`
`const Int`	`TEXT_DIRECTION_FIRST_STRONG_RTL = 7`
`const Int`	`TEXT_DIRECTION_INHERIT = 0`
`const Int`	`TEXT_DIRECTION_LOCALE = 5`
`const Int`	`TEXT_DIRECTION_LTR = 3`
`const Int`	`TEXT_DIRECTION_RTL = 4`
`const Property<View!, Float!>!`	`TRANSLATION_X`
`const Property<View!, Float!>!`	`TRANSLATION_Y`
`const Property<View!, Float!>!`	`TRANSLATION_Z`
`const String!`	`VIEW_LOG_TAG = "View"`
`const Int`	`VISIBLE = 0`
`const Array<Int>!`	`WINDOW_FOCUSED_STATE_SET`
`const Property<View!, Float!>!`	`X`
`const Property<View!, Float!>!`	`Y`
`const Property<View!, Float!>!`	`Z`

Inherited functions

From androidx.constraintlayout.widget.ConstraintHelper

`Unit`	`addView(view: View!)` Add a view to the helper.
`Unit`	`applyHelperParams()` hook for helpers to apply parameters in MotionLayout
`Unit`	`applyLayoutFeatures()`
`Unit`	`applyLayoutFeatures(container: ConstraintLayout!)`
`Boolean`	`containsId(id: Int)` does id table contain the id
`Array<Int>!`	`getReferencedIds()` Helpers typically reference a collection of ids
`Array<View!>!`	`getViews(layout: ConstraintLayout!)`
`Int`	`indexFromId(id: Int)` find the position of an id
`java-static Boolean`	`isChildOfHelper(v: View!)`
`Unit`	`onDraw(canvas: Canvas)`
`Int`	`removeView(view: View!)` Remove a given view from the helper.
`Unit`	`setIds(idList: String!)`
`Unit`	`setReferenceTags(tagList: String!)`
`Unit`	`setReferencedIds(ids: IntArray<Int>!)` Helpers typically reference a collection of ids
`Unit`	`setTag(key: Int, tag: Any!)`
`Unit`	`updatePostConstraints(container: ConstraintLayout!)` update after constraints are resolved
`Unit`	`updatePostLayout(container: ConstraintLayout!)` Allows a helper a chance to update its internal object post layout or set up connections for the pointed elements
`Unit`	`updatePostMeasure(container: ConstraintLayout!)`
`Unit`	`updatePreDraw(container: ConstraintLayout!)` called before the draw
`Unit`	`updatePreLayout(container: ConstraintLayout!)` Allows a helper a chance to update its internal object pre layout or set up connections for the pointed elements
`Unit`	`updatePreLayout( container: ConstraintWidgetContainer!, helper: Helper!, map: SparseArray<ConstraintWidget!>! )` called before solver resolution
`Unit`	`validateParams()` Allows a helper to replace the default ConstraintWidget in LayoutParams by its own subclass

From android.view.View

`Unit`	`addChildrenForAccessibility(outChildren: ArrayList<View!>!)`
`Unit`	`addExtraDataToAccessibilityNodeInfo( info: AccessibilityNodeInfo!, extraDataKey: String!, arguments: Bundle! )`
`Unit`	`addFocusables(views: ArrayList<View!>!, direction: Int)`
`Unit`	`addKeyboardNavigationClusters( views: (Mutable)Collection<View!>!, direction: Int )`
`Unit`	`addOnAttachStateChangeListener( listener: View.OnAttachStateChangeListener! )`
`Unit`	`addOnLayoutChangeListener(listener: View.OnLayoutChangeListener!)`
`Unit`	`addOnUnhandledKeyEventListener( listener: View.OnUnhandledKeyEventListener! )`
`Unit`	`addTouchables(views: ArrayList<View!>!)`
`ViewPropertyAnimator!`	`animate()`
`Unit`	`announceForAccessibility(text: CharSequence!)` This function is deprecated.
`Unit`	`autofill(values: SparseArray<AutofillValue!>!)`
`Boolean`	`awakenScrollBars()`
`Unit`	`bringToFront()`
`Unit`	`buildDrawingCache()` This function is deprecated.
`Unit`	`buildLayer()`
`Boolean`	`callOnClick()`
`Boolean`	`canResolveLayoutDirection()`
`Boolean`	`canResolveTextAlignment()`
`Boolean`	`canResolveTextDirection()`
`Boolean`	`canScrollHorizontally(direction: Int)`
`Boolean`	`canScrollVertically(direction: Int)`
`Unit`	`cancelDragAndDrop()`
`Unit`	`cancelLongPress()`
`Unit`	`cancelPendingInputEvents()`
`Boolean`	`checkInputConnectionProxy(view: View!)`
`Unit`	`clearAnimation()`
`Unit`	`clearFocus()`
`Unit`	`clearPendingCredentialRequest()`
`Unit`	`clearViewTranslationCallback()`
`java-static Int`	`combineMeasuredStates(curState: Int, newState: Int)`
`Int`	`computeHorizontalScrollExtent()`
`Int`	`computeHorizontalScrollOffset()`
`Int`	`computeHorizontalScrollRange()`
`Unit`	`computeScroll()`
`WindowInsets!`	`computeSystemWindowInsets(in: WindowInsets!, outLocalInsets: Rect!)`
`Int`	`computeVerticalScrollExtent()`
`Int`	`computeVerticalScrollOffset()`
`Int`	`computeVerticalScrollRange()`
`AccessibilityNodeInfo!`	`createAccessibilityNodeInfo()`
`Unit`	`createContextMenu(menu: ContextMenu!)`
`Unit`	`destroyDrawingCache()` This function is deprecated.
`WindowInsets!`	`dispatchApplyWindowInsets(insets: WindowInsets!)`
`Boolean`	`dispatchCapturedPointerEvent(event: MotionEvent!)`
`Unit`	`dispatchConfigurationChanged(newConfig: Configuration!)`
`Unit`	`dispatchCreateViewTranslationRequest( viewIds: (Mutable)Map<AutofillId!, LongArray<Long>!>!, supportedFormats: IntArray<Int>!, capability: TranslationCapability!, requests: (Mutable)List<ViewTranslationRequest!>! )`
`Unit`	`dispatchDisplayHint(hint: Int)`
`Boolean`	`dispatchDragEvent(event: DragEvent!)`
`Unit`	`dispatchDraw(canvas: Canvas!)`
`Unit`	`dispatchDrawableHotspotChanged(x: Float, y: Float)`
`Unit`	`dispatchFinishTemporaryDetach()`
`Boolean`	`dispatchGenericFocusedEvent(event: MotionEvent!)`
`Boolean`	`dispatchGenericMotionEvent(event: MotionEvent!)`
`Boolean`	`dispatchGenericPointerEvent(event: MotionEvent!)`
`Boolean`	`dispatchHoverEvent(event: MotionEvent!)`
`Boolean`	`dispatchKeyEvent(event: KeyEvent!)`
`Boolean`	`dispatchKeyEventPreIme(event: KeyEvent!)`
`Boolean`	`dispatchKeyShortcutEvent(event: KeyEvent!)`
`Boolean`	`dispatchNestedFling(velocityX: Float, velocityY: Float, consumed: Boolean)`
`Boolean`	`dispatchNestedPreFling(velocityX: Float, velocityY: Float)`
`Boolean`	`dispatchNestedPrePerformAccessibilityAction( action: Int, arguments: Bundle! )`
`Boolean`	`dispatchNestedPreScroll( dx: Int, dy: Int, consumed: IntArray<Int>!, offsetInWindow: IntArray<Int>! )`
`Boolean`	`dispatchNestedScroll( dxConsumed: Int, dyConsumed: Int, dxUnconsumed: Int, dyUnconsumed: Int, offsetInWindow: IntArray<Int>! )`
`Unit`	`dispatchPointerCaptureChanged(hasCapture: Boolean)`
`Boolean`	`dispatchPopulateAccessibilityEvent(event: AccessibilityEvent!)`
`Unit`	`dispatchProvideAutofillStructure(structure: ViewStructure!, flags: Int)`
`Unit`	`dispatchProvideStructure(structure: ViewStructure!)`
`Unit`	`dispatchRestoreInstanceState(container: SparseArray<Parcelable!>!)`
`Unit`	`dispatchSaveInstanceState(container: SparseArray<Parcelable!>!)`
`Unit`	`dispatchScrollCaptureSearch( localVisibleRect: Rect!, windowOffset: Point!, targets: Consumer<ScrollCaptureTarget!>! )`
`Unit`	`dispatchSetActivated(activated: Boolean)`
`Unit`	`dispatchSetPressed(pressed: Boolean)`
`Unit`	`dispatchSetSelected(selected: Boolean)`
`Unit`	`dispatchStartTemporaryDetach()`
`Unit`	`dispatchSystemUiVisibilityChanged(visibility: Int)` This function is deprecated.
`Boolean`	`dispatchTouchEvent(event: MotionEvent!)`
`Boolean`	`dispatchTrackballEvent(event: MotionEvent!)`
`Boolean`	`dispatchUnhandledMove(focused: View!, direction: Int)`
`Unit`	`dispatchVisibilityChanged(changedView: View!, visibility: Int)`
`Unit`	`dispatchWindowFocusChanged(hasFocus: Boolean)`
`Unit`	`dispatchWindowInsetsAnimationEnd(animation: WindowInsetsAnimation!)`
`Unit`	`dispatchWindowInsetsAnimationPrepare(animation: WindowInsetsAnimation!)`
`WindowInsets!`	`dispatchWindowInsetsAnimationProgress( insets: WindowInsets!, runningAnimations: (Mutable)List<WindowInsetsAnimation!>! )`
`WindowInsetsAnimation.Bounds!`	`dispatchWindowInsetsAnimationStart( animation: WindowInsetsAnimation!, bounds: WindowInsetsAnimation.Bounds! )`
`Unit`	`dispatchWindowSystemUiVisiblityChanged(visible: Int)` This function is deprecated.
`Unit`	`dispatchWindowVisibilityChanged(visibility: Int)`
`Unit`	`draw(canvas: Canvas!)`
`Unit`	`drawableHotspotChanged(x: Float, y: Float)`
`Unit`	`drawableStateChanged()`
`View!`	`findFocus()`
`OnBackInvokedDispatcher!`	`findOnBackInvokedDispatcher()`
`T!`	`<T : View?> findViewById(id: Int)`
`T!`	`<T : View?> findViewWithTag(tag: Any!)`
`Unit`	`findViewsWithText( outViews: ArrayList<View!>!, searched: CharSequence!, flags: Int )`
`Boolean`	`fitSystemWindows(insets: Rect!)` This function is deprecated.
`View!`	`focusSearch(direction: Int)`
`Unit`	`forceHasOverlappingRendering(hasOverlappingRendering: Boolean)`
`Unit`	`forceLayout()`
`Boolean`	`gatherTransparentRegion(region: Region!)`
`Unit`	`generateDisplayHash( hashAlgorithm: String!, bounds: Rect!, executor: Executor!, callback: DisplayHashResultCallback! )`
`java-static Int`	`generateViewId()`
`CharSequence!`	`getAccessibilityClassName()`
`View.AccessibilityDelegate!`	`getAccessibilityDelegate()`
`Int`	`getAccessibilityLiveRegion()`
`AccessibilityNodeProvider!`	`getAccessibilityNodeProvider()`
`CharSequence!`	`getAccessibilityPaneTitle()`
`Int`	`getAccessibilityTraversalAfter()`
`Int`	`getAccessibilityTraversalBefore()`
`String!`	`getAllowedHandwritingDelegatePackageName()`
`String!`	`getAllowedHandwritingDelegatorPackageName()`
`Float`	`getAlpha()`
`Animation!`	`getAnimation()`
`Matrix!`	`getAnimationMatrix()`
`IBinder!`	`getApplicationWindowToken()`
`Array<Int>!`	`getAttributeResolutionStack(attribute: Int)`
`(Mutable)Map<Int!, Int!>!`	`getAttributeSourceResourceMap()`
`Array<String!>!`	`getAutofillHints()`
`AutofillId!`	`getAutofillId()`
`Int`	`getAutofillType()`
`AutofillValue!`	`getAutofillValue()`
`Drawable!`	`getBackground()`
`BlendMode!`	`getBackgroundTintBlendMode()`
`ColorStateList!`	`getBackgroundTintList()`
`PorterDuff.Mode!`	`getBackgroundTintMode()`
`Int`	`getBaseline()`
`Int`	`getBottom()`
`Float`	`getBottomFadingEdgeStrength()`
`Int`	`getBottomPaddingOffset()`
`Float`	`getCameraDistance()`
`Rect!`	`getClipBounds()`
`Boolean`	`getClipBounds(outRect: Rect!)`
`Boolean`	`getClipToOutline()`
`ContentCaptureSession!`	`getContentCaptureSession()`
`CharSequence!`	`getContentDescription()`
`Int`	`getContentSensitivity()`
`Context!`	`getContext()`
`ContextMenu.ContextMenuInfo!`	`getContextMenuInfo()`
`Boolean`	`getDefaultFocusHighlightEnabled()`
`java-static Int`	`getDefaultSize(size: Int, measureSpec: Int)`
`Display!`	`getDisplay()`
`Array<Int>!`	`getDrawableState()`
`Bitmap!`	`getDrawingCache()` This function is deprecated.
`Int`	`getDrawingCacheBackgroundColor()` This function is deprecated.
`Int`	`getDrawingCacheQuality()` This function is deprecated.
`Unit`	`getDrawingRect(outRect: Rect!)`
`Long`	`getDrawingTime()`
`Float`	`getElevation()`
`Int`	`getExplicitStyle()`
`Boolean`	`getFilterTouchesWhenObscured()`
`Boolean`	`getFitsSystemWindows()`
`Int`	`getFocusable()`
`ArrayList<View!>!`	`getFocusables(direction: Int)`
`Unit`	`getFocusedRect(r: Rect!)`
`Drawable!`	`getForeground()`
`Int`	`getForegroundGravity()`
`BlendMode!`	`getForegroundTintBlendMode()`
`ColorStateList!`	`getForegroundTintList()`
`PorterDuff.Mode!`	`getForegroundTintMode()`
`Float`	`getFrameContentVelocity()`
`Boolean`	`getGlobalVisibleRect(r: Rect!)`
`Handler!`	`getHandler()`
`Float`	`getHandwritingBoundsOffsetBottom()`
`Float`	`getHandwritingBoundsOffsetLeft()`
`Float`	`getHandwritingBoundsOffsetRight()`
`Float`	`getHandwritingBoundsOffsetTop()`
`Int`	`getHandwritingDelegateFlags()`
`Runnable!`	`getHandwritingDelegatorCallback()`
`Boolean`	`getHasOverlappingRendering()`
`Int`	`getHeight()`
`Unit`	`getHitRect(outRect: Rect!)`
`Int`	`getHorizontalFadingEdgeLength()`
`Int`	`getHorizontalScrollbarHeight()`
`Drawable!`	`getHorizontalScrollbarThumbDrawable()`
`Drawable!`	`getHorizontalScrollbarTrackDrawable()`
`Int`	`getId()`
`Int`	`getImportantForAccessibility()`
`Int`	`getImportantForAutofill()`
`Int`	`getImportantForContentCapture()`
`Boolean`	`getKeepScreenOn()`
`KeyEvent.DispatcherState!`	`getKeyDispatcherState()`
`Int`	`getLabelFor()`
`Int`	`getLayerType()`
`Int`	`getLayoutDirection()`
`ViewGroup.LayoutParams!`	`getLayoutParams()`
`Int`	`getLeft()`
`Float`	`getLeftFadingEdgeStrength()`
`Int`	`getLeftPaddingOffset()`
`Boolean`	`getLocalVisibleRect(r: Rect!)`
`Unit`	`getLocationInSurface(location: IntArray<Int>!)`
`Unit`	`getLocationInWindow(outLocation: IntArray<Int>!)`
`Unit`	`getLocationOnScreen(outLocation: IntArray<Int>!)`
`Matrix!`	`getMatrix()`
`Int`	`getMeasuredHeight()`
`Int`	`getMeasuredHeightAndState()`
`Int`	`getMeasuredState()`
`Int`	`getMeasuredWidth()`
`Int`	`getMeasuredWidthAndState()`
`Int`	`getMinimumHeight()`
`Int`	`getMinimumWidth()`
`Int`	`getNextClusterForwardId()`
`Int`	`getNextFocusDownId()`
`Int`	`getNextFocusForwardId()`
`Int`	`getNextFocusLeftId()`
`Int`	`getNextFocusRightId()`
`Int`	`getNextFocusUpId()`
`View.OnFocusChangeListener!`	`getOnFocusChangeListener()`
`Int`	`getOutlineAmbientShadowColor()`
`ViewOutlineProvider!`	`getOutlineProvider()`
`Int`	`getOutlineSpotShadowColor()`
`Int`	`getOverScrollMode()`
`ViewOverlay!`	`getOverlay()`
`Int`	`getPaddingBottom()`
`Int`	`getPaddingEnd()`
`Int`	`getPaddingLeft()`
`Int`	`getPaddingRight()`
`Int`	`getPaddingStart()`
`Int`	`getPaddingTop()`
`ViewParent!`	`getParent()`
`ViewParent!`	`getParentForAccessibility()`
`OutcomeReceiver<GetCredentialResponse!, GetCredentialException!>!`	`getPendingCredentialCallback()`
`GetCredentialRequest!`	`getPendingCredentialRequest()`
`Float`	`getPivotX()`
`Float`	`getPivotY()`
`PointerIcon!`	`getPointerIcon()`
`(Mutable)List<Rect!>!`	`getPreferKeepClearRects()`
`Array<String!>!`	`getReceiveContentMimeTypes()`
`Float`	`getRequestedFrameRate()`
`Resources!`	`getResources()`
`Boolean`	`getRevealOnFocusHint()`
`Int`	`getRight()`
`Float`	`getRightFadingEdgeStrength()`
`Int`	`getRightPaddingOffset()`
`AttachedSurfaceControl!`	`getRootSurfaceControl()`
`View!`	`getRootView()`
`WindowInsets!`	`getRootWindowInsets()`
`Float`	`getRotation()`
`Float`	`getRotationX()`
`Float`	`getRotationY()`
`Float`	`getScaleX()`
`Float`	`getScaleY()`
`Int`	`getScrollBarDefaultDelayBeforeFade()`
`Int`	`getScrollBarFadeDuration()`
`Int`	`getScrollBarSize()`
`Int`	`getScrollBarStyle()`
`Int`	`getScrollCaptureHint()`
`Int`	`getScrollIndicators()`
`Int`	`getScrollX()`
`Int`	`getScrollY()`
`Int`	`getSolidColor()`
`Int`	`getSourceLayoutResId()`
`CharSequence!`	`getStateDescription()`
`StateListAnimator!`	`getStateListAnimator()`
`Int`	`getSuggestedMinimumHeight()`
`Int`	`getSuggestedMinimumWidth()`
`CharSequence!`	`getSupplementalDescription()`
`(Mutable)List<Rect!>!`	`getSystemGestureExclusionRects()`
`Int`	`getSystemUiVisibility()` This function is deprecated.
`Any!`	`getTag()`
`Int`	`getTextAlignment()`
`Int`	`getTextDirection()`
`CharSequence!`	`getTooltipText()`
`Int`	`getTop()`
`Float`	`getTopFadingEdgeStrength()`
`Int`	`getTopPaddingOffset()`
`TouchDelegate!`	`getTouchDelegate()`
`ArrayList<View!>!`	`getTouchables()`
`Float`	`getTransitionAlpha()`
`String!`	`getTransitionName()`
`Float`	`getTranslationX()`
`Float`	`getTranslationY()`
`Float`	`getTranslationZ()`
`Long`	`getUniqueDrawingId()`
`Int`	`getVerticalFadingEdgeLength()`
`Int`	`getVerticalScrollbarPosition()`
`Drawable!`	`getVerticalScrollbarThumbDrawable()`
`Drawable!`	`getVerticalScrollbarTrackDrawable()`
`Int`	`getVerticalScrollbarWidth()`
`ViewTranslationResponse!`	`getViewTranslationResponse()`
`ViewTreeObserver!`	`getViewTreeObserver()`
`Int`	`getVisibility()`
`Int`	`getWidth()`
`Int`	`getWindowAttachCount()`
`WindowId!`	`getWindowId()`
`WindowInsetsController!`	`getWindowInsetsController()`
`Int`	`getWindowSystemUiVisibility()` This function is deprecated.
`IBinder!`	`getWindowToken()`
`Int`	`getWindowVisibility()`
`Unit`	`getWindowVisibleDisplayFrame(outRect: Rect!)`
`Float`	`getX()`
`Float`	`getY()`
`Float`	`getZ()`
`Boolean`	`hasExplicitFocusable()`
`Boolean`	`hasFocus()`
`Boolean`	`hasFocusable()`
`Boolean`	`hasNestedScrollingParent()`
`Boolean`	`hasOnClickListeners()`
`Boolean`	`hasOnLongClickListeners()`
`Boolean`	`hasOverlappingRendering()`
`Boolean`	`hasPointerCapture()`
`Boolean`	`hasTransientState()`
`Boolean`	`hasWindowFocus()`
`java-static View!`	`inflate(context: Context!, resource: Int, root: ViewGroup!)`
`Unit`	`invalidate()`
`Unit`	`invalidateDrawable(drawable: Drawable!)`
`Unit`	`invalidateOutline()`
`Boolean`	`isAccessibilityDataSensitive()`
`Boolean`	`isAccessibilityFocused()`
`Boolean`	`isAccessibilityHeading()`
`Boolean`	`isActivated()`
`Boolean`	`isAttachedToWindow()`
`Boolean`	`isAutoHandwritingEnabled()`
`Boolean`	`isClickable()`
`Boolean`	`isContentSensitive()`
`Boolean`	`isContextClickable()`
`Boolean`	`isCredential()` This function is deprecated.
`Boolean`	`isDirty()`
`Boolean`	`isDrawingCacheEnabled()` This function is deprecated.
`Boolean`	`isDuplicateParentStateEnabled()`
`Boolean`	`isEnabled()`
`Boolean`	`isFocusable()`
`Boolean`	`isFocusableInTouchMode()`
`Boolean`	`isFocused()`
`Boolean`	`isFocusedByDefault()`
`Boolean`	`isForceDarkAllowed()`
`Boolean`	`isHandwritingDelegate()`
`Boolean`	`isHapticFeedbackEnabled()`
`Boolean`	`isHardwareAccelerated()`
`Boolean`	`isHorizontalFadingEdgeEnabled()`
`Boolean`	`isHorizontalScrollBarEnabled()`
`Boolean`	`isHovered()`
`Boolean`	`isImportantForAccessibility()`
`Boolean`	`isImportantForAutofill()`
`Boolean`	`isImportantForContentCapture()`
`Boolean`	`isInEditMode()`
`Boolean`	`isInLayout()`
`Boolean`	`isInTouchMode()`
`Boolean`	`isKeyboardNavigationCluster()`
`Boolean`	`isLaidOut()`
`Boolean`	`isLayoutDirectionResolved()`
`Boolean`	`isLayoutRequested()`
`Boolean`	`isLongClickable()`
`Boolean`	`isNestedScrollingEnabled()`
`Boolean`	`isOpaque()`
`Boolean`	`isPaddingOffsetRequired()`
`Boolean`	`isPaddingRelative()`
`Boolean`	`isPivotSet()`
`Boolean`	`isPreferKeepClear()`
`Boolean`	`isPressed()`
`Boolean`	`isSaveEnabled()`
`Boolean`	`isSaveFromParentEnabled()`
`Boolean`	`isScreenReaderFocusable()`
`Boolean`	`isScrollContainer()`
`Boolean`	`isScrollbarFadingEnabled()`
`Boolean`	`isSelected()`
`Boolean`	`isShowingLayoutBounds()`
`Boolean`	`isShown()`
`Boolean`	`isSoundEffectsEnabled()`
`Boolean`	`isTemporarilyDetached()`
`Boolean`	`isTextAlignmentResolved()`
`Boolean`	`isTextDirectionResolved()`
`Boolean`	`isVerticalFadingEdgeEnabled()`
`Boolean`	`isVerticalScrollBarEnabled()`
`Boolean`	`isVisibleToUserForAutofill(virtualId: Int)`
`Unit`	`jumpDrawablesToCurrentState()`
`View!`	`keyboardNavigationClusterSearch(currentCluster: View!, direction: Int)`
`Unit`	`layout(l: Int, t: Int, r: Int, b: Int)`
`Unit`	`measure(widthMeasureSpec: Int, heightMeasureSpec: Int)`
`java-static Array<Int>!`	`mergeDrawableStates( baseState: IntArray<Int>!, additionalState: IntArray<Int>! )`
`Unit`	`offsetLeftAndRight(offset: Int)`
`Unit`	`offsetTopAndBottom(offset: Int)`
`Unit`	`onAnimationEnd()`
`Unit`	`onAnimationStart()`
`WindowInsets!`	`onApplyWindowInsets(insets: WindowInsets!)`
`Unit`	`onAttachedToWindow()`
`Unit`	`onCancelPendingInputEvents()`
`Boolean`	`onCapturedPointerEvent(event: MotionEvent!)`
`Boolean`	`onCheckIsTextEditor()`
`Unit`	`onConfigurationChanged(newConfig: Configuration!)`
`Unit`	`onCreateContextMenu(menu: ContextMenu!)`
`Array<Int>!`	`onCreateDrawableState(extraSpace: Int)`
`InputConnection!`	`onCreateInputConnection(outAttrs: EditorInfo!)`
`Unit`	`onCreateViewTranslationRequest( supportedFormats: IntArray<Int>!, requestsCollector: Consumer<ViewTranslationRequest!>! )`
`Unit`	`onCreateVirtualViewTranslationRequests( virtualIds: LongArray<Long>!, supportedFormats: IntArray<Int>!, requestsCollector: Consumer<ViewTranslationRequest!>! )`
`Unit`	`onDetachedFromWindow()`
`Unit`	`onDisplayHint(hint: Int)`
`Boolean`	`onDragEvent(event: DragEvent!)`
`Unit`	`onDraw(canvas: Canvas!)`
`Unit`	`onDrawForeground(canvas: Canvas!)`
`Unit`	`onDrawScrollBars(canvas: Canvas!)`
`Boolean`	`onFilterTouchEventForSecurity(event: MotionEvent!)`
`Unit`	`onFinishInflate()`
`Unit`	`onFinishTemporaryDetach()`
`Unit`	`onFocusChanged( gainFocus: Boolean, direction: Int, previouslyFocusedRect: Rect! )`
`Boolean`	`onGenericMotionEvent(event: MotionEvent!)`
`Unit`	`onHoverChanged(hovered: Boolean)`
`Boolean`	`onHoverEvent(event: MotionEvent!)`
`Unit`	`onInitializeAccessibilityEvent(event: AccessibilityEvent!)`
`Unit`	`onInitializeAccessibilityNodeInfo(info: AccessibilityNodeInfo!)`
`Boolean`	`onKeyDown(keyCode: Int, event: KeyEvent!)`
`Boolean`	`onKeyLongPress(keyCode: Int, event: KeyEvent!)`
`Boolean`	`onKeyMultiple(keyCode: Int, repeatCount: Int, event: KeyEvent!)`
`Boolean`	`onKeyPreIme(keyCode: Int, event: KeyEvent!)`
`Boolean`	`onKeyShortcut(keyCode: Int, event: KeyEvent!)`
`Boolean`	`onKeyUp(keyCode: Int, event: KeyEvent!)`
`Unit`	`onLayout(changed: Boolean, left: Int, top: Int, right: Int, bottom: Int)`
`Unit`	`onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int)`
`Unit`	`onOverScrolled( scrollX: Int, scrollY: Int, clampedX: Boolean, clampedY: Boolean )`
`Unit`	`onPointerCaptureChange(hasCapture: Boolean)`
`Unit`	`onPopulateAccessibilityEvent(event: AccessibilityEvent!)`
`Unit`	`onProvideAutofillStructure(structure: ViewStructure!, flags: Int)`
`Unit`	`onProvideAutofillVirtualStructure(structure: ViewStructure!, flags: Int)`
`Unit`	`onProvideContentCaptureStructure(structure: ViewStructure!, flags: Int)`
`Unit`	`onProvideStructure(structure: ViewStructure!)`
`Unit`	`onProvideVirtualStructure(structure: ViewStructure!)`
`ContentInfo!`	`onReceiveContent(payload: ContentInfo!)`
`PointerIcon!`	`onResolvePointerIcon(event: MotionEvent!, pointerIndex: Int)`
`Unit`	`onRestoreInstanceState(state: Parcelable!)`
`Unit`	`onRtlPropertiesChanged(layoutDirection: Int)`
`Parcelable!`	`onSaveInstanceState()`
`Unit`	`onScreenStateChanged(screenState: Int)`
`Unit`	`onScrollCaptureSearch( localVisibleRect: Rect!, windowOffset: Point!, targets: Consumer<ScrollCaptureTarget!>! )`
`Unit`	`onScrollChanged(l: Int, t: Int, oldl: Int, oldt: Int)`
`Boolean`	`onSetAlpha(alpha: Int)`
`Unit`	`onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int)`
`Unit`	`onStartTemporaryDetach()`
`Boolean`	`onTouchEvent(event: MotionEvent!)`
`Boolean`	`onTrackballEvent(event: MotionEvent!)`
`Unit`	`onViewTranslationResponse(response: ViewTranslationResponse!)`
`Unit`	`onVirtualViewTranslationResponses( response: LongSparseArray<ViewTranslationResponse!>! )`
`Unit`	`onVisibilityAggregated(isVisible: Boolean)`
`Unit`	`onVisibilityChanged(changedView: View!, visibility: Int)`
`Unit`	`onWindowFocusChanged(hasWindowFocus: Boolean)`
`Unit`	`onWindowSystemUiVisibilityChanged(visible: Int)` This function is deprecated.
`Unit`	`onWindowVisibilityChanged(visibility: Int)`
`Boolean`	`overScrollBy( deltaX: Int, deltaY: Int, scrollX: Int, scrollY: Int, scrollRangeX: Int, scrollRangeY: Int, maxOverScrollX: Int, maxOverScrollY: Int, isTouchEvent: Boolean )`
`Boolean`	`performAccessibilityAction(action: Int, arguments: Bundle!)`
`Boolean`	`performClick()`
`Boolean`	`performContextClick()`
`Boolean`	`performHapticFeedback(request: HapticFeedbackRequest!)`
`Boolean`	`performLongClick()`
`ContentInfo!`	`performReceiveContent(payload: ContentInfo!)`
`Unit`	`playSoundEffect(soundConstant: Int)`
`Boolean`	`post(action: Runnable!)`
`Boolean`	`postDelayed(action: Runnable!, delayMillis: Long)`
`Unit`	`postInvalidate()`
`Unit`	`postInvalidateDelayed(delayMilliseconds: Long)`
`Unit`	`postInvalidateOnAnimation()`
`Unit`	`postOnAnimation(action: Runnable!)`
`Unit`	`postOnAnimationDelayed(action: Runnable!, delayMillis: Long)`
`Unit`	`refreshDrawableState()`
`java-static Unit`	`registerCalledFromWrongThreadListener( listener: View.CalledFromWrongThreadListener! )`
`Unit`	`releasePointerCapture()`
`Boolean`	`removeCallbacks(action: Runnable!)`
`Unit`	`removeOnAttachStateChangeListener( listener: View.OnAttachStateChangeListener! )`
`Unit`	`removeOnLayoutChangeListener(listener: View.OnLayoutChangeListener!)`
`Unit`	`removeOnUnhandledKeyEventListener( listener: View.OnUnhandledKeyEventListener! )`
`Unit`	`reportAppJankStats(appJankStats: AppJankStats!)`
`Unit`	`requestApplyInsets()`
`Unit`	`requestFitSystemWindows()` This function is deprecated.
`Boolean`	`requestFocus()`
`Boolean`	`requestFocusFromTouch()`
`Unit`	`requestLayout()`
`Unit`	`requestPointerCapture()`
`Boolean`	`requestRectangleOnScreen(rectangle: Rect!)`
`Unit`	`requestUnbufferedDispatch(event: MotionEvent!)`
`T!`	`<T : View?> requireViewById(id: Int)`
`Unit`	`resetPivot()`
`java-static Int`	`resolveSize(size: Int, measureSpec: Int)`
`java-static Int`	`resolveSizeAndState(size: Int, measureSpec: Int, childMeasuredState: Int)`
`Boolean`	`restoreDefaultFocus()`
`Unit`	`restoreHierarchyState(container: SparseArray<Parcelable!>!)`
`Unit`	`saveAttributeDataForStyleable( context: Context!, styleable: IntArray<Int>!, attrs: AttributeSet!, t: TypedArray!, defStyleAttr: Int, defStyleRes: Int )`
`Unit`	`saveHierarchyState(container: SparseArray<Parcelable!>!)`
`Unit`	`scheduleDrawable(who: Drawable!, what: Runnable!, when: Long)`
`Unit`	`scrollBy(x: Int, y: Int)`
`Unit`	`scrollTo(x: Int, y: Int)`
`Unit`	`sendAccessibilityEvent(eventType: Int)`
`Unit`	`sendAccessibilityEventUnchecked(event: AccessibilityEvent!)`
`Unit`	`setAccessibilityDataSensitive(accessibilityDataSensitive: Int)`
`Unit`	`setAccessibilityDelegate(delegate: View.AccessibilityDelegate!)`
`Unit`	`setAccessibilityHeading(isHeading: Boolean)`
`Unit`	`setAccessibilityLiveRegion(mode: Int)`
`Unit`	`setAccessibilityPaneTitle(accessibilityPaneTitle: CharSequence!)`
`Unit`	`setAccessibilityTraversalAfter(afterId: Int)`
`Unit`	`setAccessibilityTraversalBefore(beforeId: Int)`
`Unit`	`setActivated(activated: Boolean)`
`Unit`	`setAllowClickWhenDisabled(clickableWhenDisabled: Boolean)`
`Unit`	`setAllowedHandwritingDelegatePackage(allowedPackageName: String!)`
`Unit`	`setAllowedHandwritingDelegatorPackage(allowedPackageName: String!)`
`Unit`	`setAlpha(alpha: Float)`
`Unit`	`setAnimation(animation: Animation!)`
`Unit`	`setAnimationMatrix(matrix: Matrix!)`
`Unit`	`setAutoHandwritingEnabled(enabled: Boolean)`
`Unit`	`setAutofillHints(autofillHints: Array<String!>!)`
`Unit`	`setAutofillId(id: AutofillId!)`
`Unit`	`setBackground(background: Drawable!)`
`Unit`	`setBackgroundColor(color: Int)`
`Unit`	`setBackgroundDrawable(background: Drawable!)` This function is deprecated.
`Unit`	`setBackgroundResource(resid: Int)`
`Unit`	`setBackgroundTintBlendMode(blendMode: BlendMode!)`
`Unit`	`setBackgroundTintList(tint: ColorStateList!)`
`Unit`	`setBackgroundTintMode(tintMode: PorterDuff.Mode!)`
`Unit`	`setBottom(bottom: Int)`
`Unit`	`setCameraDistance(distance: Float)`
`Unit`	`setClickable(clickable: Boolean)`
`Unit`	`setClipBounds(clipBounds: Rect!)`
`Unit`	`setClipToOutline(clipToOutline: Boolean)`
`Unit`	`setContentCaptureSession(contentCaptureSession: ContentCaptureSession!)`
`Unit`	`setContentDescription(contentDescription: CharSequence!)`
`Unit`	`setContentSensitivity(mode: Int)`
`Unit`	`setContextClickable(contextClickable: Boolean)`
`Unit`	`setDefaultFocusHighlightEnabled(defaultFocusHighlightEnabled: Boolean)`
`Unit`	`setDrawingCacheBackgroundColor(color: Int)` This function is deprecated.
`Unit`	`setDrawingCacheEnabled(enabled: Boolean)` This function is deprecated.
`Unit`	`setDrawingCacheQuality(quality: Int)` This function is deprecated.
`Unit`	`setDuplicateParentStateEnabled(enabled: Boolean)`
`Unit`	`setElevation(elevation: Float)`
`Unit`	`setEnabled(enabled: Boolean)`
`Unit`	`setFadingEdgeLength(length: Int)`
`Unit`	`setFilterTouchesWhenObscured(enabled: Boolean)`
`Unit`	`setFitsSystemWindows(fitSystemWindows: Boolean)`
`Unit`	`setFocusable(focusable: Boolean)`
`Unit`	`setFocusableInTouchMode(focusableInTouchMode: Boolean)`
`Unit`	`setFocusedByDefault(isFocusedByDefault: Boolean)`
`Unit`	`setForceDarkAllowed(allow: Boolean)`
`Unit`	`setForeground(foreground: Drawable!)`
`Unit`	`setForegroundGravity(gravity: Int)`
`Unit`	`setForegroundTintBlendMode(blendMode: BlendMode!)`
`Unit`	`setForegroundTintList(tint: ColorStateList!)`
`Unit`	`setForegroundTintMode(tintMode: PorterDuff.Mode!)`
`Unit`	`setFrameContentVelocity(pixelsPerSecond: Float)`
`Unit`	`setHandwritingBoundsOffsets( offsetLeft: Float, offsetTop: Float, offsetRight: Float, offsetBottom: Float )`
`Unit`	`setHandwritingDelegateFlags(flags: Int)`
`Unit`	`setHandwritingDelegatorCallback(callback: Runnable!)`
`Unit`	`setHapticFeedbackEnabled(hapticFeedbackEnabled: Boolean)`
`Unit`	`setHasTransientState(hasTransientState: Boolean)`
`Unit`	`setHorizontalFadingEdgeEnabled(horizontalFadingEdgeEnabled: Boolean)`
`Unit`	`setHorizontalScrollBarEnabled(horizontalScrollBarEnabled: Boolean)`
`Unit`	`setHorizontalScrollbarThumbDrawable(drawable: Drawable!)`
`Unit`	`setHorizontalScrollbarTrackDrawable(drawable: Drawable!)`
`Unit`	`setHovered(hovered: Boolean)`
`Unit`	`setId(id: Int)`
`Unit`	`setImportantForAccessibility(mode: Int)`
`Unit`	`setImportantForAutofill(mode: Int)`
`Unit`	`setImportantForContentCapture(mode: Int)`
`Unit`	`setIsCredential(isCredential: Boolean)` This function is deprecated.
`Unit`	`setIsHandwritingDelegate(isHandwritingDelegate: Boolean)`
`Unit`	`setKeepScreenOn(keepScreenOn: Boolean)`
`Unit`	`setKeyboardNavigationCluster(isCluster: Boolean)`
`Unit`	`setLabelFor(id: Int)`
`Unit`	`setLayerPaint(paint: Paint!)`
`Unit`	`setLayerType(layerType: Int, paint: Paint!)`
`Unit`	`setLayoutDirection(layoutDirection: Int)`
`Unit`	`setLayoutParams(params: ViewGroup.LayoutParams!)`
`Unit`	`setLeft(left: Int)`
`Unit`	`setLeftTopRightBottom(left: Int, top: Int, right: Int, bottom: Int)`
`Unit`	`setLongClickable(longClickable: Boolean)`
`Unit`	`setMeasuredDimension(measuredWidth: Int, measuredHeight: Int)`
`Unit`	`setMinimumHeight(minHeight: Int)`
`Unit`	`setMinimumWidth(minWidth: Int)`
`Unit`	`setNestedScrollingEnabled(enabled: Boolean)`
`Unit`	`setNextClusterForwardId(nextClusterForwardId: Int)`
`Unit`	`setNextFocusDownId(nextFocusDownId: Int)`
`Unit`	`setNextFocusForwardId(nextFocusForwardId: Int)`
`Unit`	`setNextFocusLeftId(nextFocusLeftId: Int)`
`Unit`	`setNextFocusRightId(nextFocusRightId: Int)`
`Unit`	`setNextFocusUpId(nextFocusUpId: Int)`
`Unit`	`setOnApplyWindowInsetsListener( listener: View.OnApplyWindowInsetsListener! )`
`Unit`	`setOnCapturedPointerListener(l: View.OnCapturedPointerListener!)`
`Unit`	`setOnClickListener(l: View.OnClickListener!)`
`Unit`	`setOnContextClickListener(l: View.OnContextClickListener!)`
`Unit`	`setOnCreateContextMenuListener(l: View.OnCreateContextMenuListener!)`
`Unit`	`setOnDragListener(l: View.OnDragListener!)`
`Unit`	`setOnFocusChangeListener(l: View.OnFocusChangeListener!)`
`Unit`	`setOnGenericMotionListener(l: View.OnGenericMotionListener!)`
`Unit`	`setOnHoverListener(l: View.OnHoverListener!)`
`Unit`	`setOnKeyListener(l: View.OnKeyListener!)`
`Unit`	`setOnLongClickListener(l: View.OnLongClickListener!)`
`Unit`	`setOnReceiveContentListener( mimeTypes: Array<String!>!, listener: OnReceiveContentListener! )`
`Unit`	`setOnScrollChangeListener(l: View.OnScrollChangeListener!)`
`Unit`	`setOnSystemUiVisibilityChangeListener( l: View.OnSystemUiVisibilityChangeListener! )` This function is deprecated.
`Unit`	`setOnTouchListener(l: View.OnTouchListener!)`
`Unit`	`setOutlineAmbientShadowColor(color: Int)`
`Unit`	`setOutlineProvider(provider: ViewOutlineProvider!)`
`Unit`	`setOutlineSpotShadowColor(color: Int)`
`Unit`	`setOverScrollMode(overScrollMode: Int)`
`Unit`	`setPadding(left: Int, top: Int, right: Int, bottom: Int)`
`Unit`	`setPaddingRelative(start: Int, top: Int, end: Int, bottom: Int)`
`Unit`	`setPendingCredentialRequest( request: GetCredentialRequest!, callback: OutcomeReceiver<GetCredentialResponse!, GetCredentialException!>! )`
`Unit`	`setPivotX(pivotX: Float)`
`Unit`	`setPivotY(pivotY: Float)`
`Unit`	`setPointerIcon(pointerIcon: PointerIcon!)`
`Unit`	`setPreferKeepClear(preferKeepClear: Boolean)`
`Unit`	`setPreferKeepClearRects(rects: (Mutable)List<Rect!>!)`
`Unit`	`setPressed(pressed: Boolean)`
`Unit`	`setRenderEffect(renderEffect: RenderEffect!)`
`Unit`	`setRequestedFrameRate(frameRate: Float)`
`Unit`	`setRevealOnFocusHint(revealOnFocus: Boolean)`
`Unit`	`setRight(right: Int)`
`Unit`	`setRotation(rotation: Float)`
`Unit`	`setRotationX(rotationX: Float)`
`Unit`	`setRotationY(rotationY: Float)`
`Unit`	`setSaveEnabled(enabled: Boolean)`
`Unit`	`setSaveFromParentEnabled(enabled: Boolean)`
`Unit`	`setScaleX(scaleX: Float)`
`Unit`	`setScaleY(scaleY: Float)`
`Unit`	`setScreenReaderFocusable(screenReaderFocusable: Boolean)`
`Unit`	`setScrollBarDefaultDelayBeforeFade( scrollBarDefaultDelayBeforeFade: Int )`
`Unit`	`setScrollBarFadeDuration(scrollBarFadeDuration: Int)`
`Unit`	`setScrollBarSize(scrollBarSize: Int)`
`Unit`	`setScrollBarStyle(style: Int)`
`Unit`	`setScrollCaptureCallback(callback: ScrollCaptureCallback!)`
`Unit`	`setScrollCaptureHint(hint: Int)`
`Unit`	`setScrollContainer(isScrollContainer: Boolean)`
`Unit`	`setScrollIndicators(indicators: Int)`
`Unit`	`setScrollX(value: Int)`
`Unit`	`setScrollY(value: Int)`
`Unit`	`setScrollbarFadingEnabled(fadeScrollbars: Boolean)`
`Unit`	`setSelected(selected: Boolean)`
`Unit`	`setSoundEffectsEnabled(soundEffectsEnabled: Boolean)`
`Unit`	`setStateDescription(stateDescription: CharSequence!)`
`Unit`	`setStateListAnimator(stateListAnimator: StateListAnimator!)`
`Unit`	`setSupplementalDescription(supplementalDescription: CharSequence!)`
`Unit`	`setSystemGestureExclusionRects(rects: (Mutable)List<Rect!>!)`
`Unit`	`setSystemUiVisibility(visibility: Int)` This function is deprecated.
`Unit`	`setTag(key: Int, tag: Any!)`
`Unit`	`setTextAlignment(textAlignment: Int)`
`Unit`	`setTextDirection(textDirection: Int)`
`Unit`	`setTooltipText(tooltipText: CharSequence!)`
`Unit`	`setTop(top: Int)`
`Unit`	`setTouchDelegate(delegate: TouchDelegate!)`
`Unit`	`setTransitionAlpha(alpha: Float)`
`Unit`	`setTransitionName(transitionName: String!)`
`Unit`	`setTransitionVisibility(visibility: Int)`
`Unit`	`setTranslationX(translationX: Float)`
`Unit`	`setTranslationY(translationY: Float)`
`Unit`	`setTranslationZ(translationZ: Float)`
`Unit`	`setVerticalFadingEdgeEnabled(verticalFadingEdgeEnabled: Boolean)`
`Unit`	`setVerticalScrollBarEnabled(verticalScrollBarEnabled: Boolean)`
`Unit`	`setVerticalScrollbarPosition(position: Int)`
`Unit`	`setVerticalScrollbarThumbDrawable(drawable: Drawable!)`
`Unit`	`setVerticalScrollbarTrackDrawable(drawable: Drawable!)`
`Unit`	`setViewTranslationCallback(callback: ViewTranslationCallback!)`
`Unit`	`setVisibility(visibility: Int)`
`Unit`	`setWillNotCacheDrawing(willNotCacheDrawing: Boolean)` This function is deprecated.
`Unit`	`setWillNotDraw(willNotDraw: Boolean)`
`Unit`	`setWindowInsetsAnimationCallback( callback: WindowInsetsAnimation.Callback! )`
`Unit`	`setX(x: Float)`
`Unit`	`setY(y: Float)`
`Unit`	`setZ(z: Float)`
`Boolean`	`showContextMenu()`
`ActionMode!`	`startActionMode(callback: ActionMode.Callback!)`
`Unit`	`startAnimation(animation: Animation!)`
`Boolean`	`startDrag( data: ClipData!, shadowBuilder: View.DragShadowBuilder!, myLocalState: Any!, flags: Int )` This function is deprecated.
`Boolean`	`startDragAndDrop( data: ClipData!, shadowBuilder: View.DragShadowBuilder!, myLocalState: Any!, flags: Int )`
`Boolean`	`startNestedScroll(axes: Int)`
`Unit`	`stopNestedScroll()`
`String!`	`toString()`
`Unit`	`transformMatrixToGlobal(matrix: Matrix!)`
`Unit`	`transformMatrixToLocal(matrix: Matrix!)`
`java-static Unit`	`unregisterCalledFromWrongThreadListener( listener: View.CalledFromWrongThreadListener! )`
`Unit`	`unscheduleDrawable(who: Drawable!)`
`Unit`	`updateDragShadow(shadowBuilder: View.DragShadowBuilder!)`
`Boolean`	`verifyDrawable(who: Drawable!)`
`Boolean`	`willNotCacheDrawing()` This function is deprecated.
`Boolean`	`willNotDraw()`

From androidx.constraintlayout.widget.VirtualLayout

`Unit`	`applyLayoutFeaturesInConstraintSet(container: ConstraintLayout!)`
`Unit`	`onAttachedToWindow()`
`Unit`	`setElevation(elevation: Float)`
`Unit`	`setVisibility(visibility: Int)`

Inherited properties

From androidx.constraintlayout.widget.ConstraintHelper

`Int`	`mCount`
`Helper!`	`mHelperWidget`
`Array<Int>!`	`mIds`
`HashMap<Int!, String!>!`	`mMap`
`String!`	`mReferenceIds`
`String!`	`mReferenceTags`
`Boolean`	`mUseViewMeasure`
`Context!`	`myContext`

Constants

CHAIN_PACKED

Added in 2.2.2

const val CHAIN_PACKED = 2: Int

CHAIN_SPREAD

Added in 2.2.2

const val CHAIN_SPREAD = 0: Int

CHAIN_SPREAD_INSIDE

Added in 2.2.2

const val CHAIN_SPREAD_INSIDE = 1: Int

HORIZONTAL

Added in 2.2.2

const val HORIZONTAL = 0: Int

HORIZONTAL_ALIGN_CENTER

Added in 2.2.2

const val HORIZONTAL_ALIGN_CENTER = 2: Int

HORIZONTAL_ALIGN_END

Added in 2.2.2

const val HORIZONTAL_ALIGN_END = 1: Int

HORIZONTAL_ALIGN_START

Added in 2.2.2

const val HORIZONTAL_ALIGN_START = 0: Int

VERTICAL

Added in 2.2.2

const val VERTICAL = 1: Int

VERTICAL_ALIGN_BASELINE

Added in 2.2.2

const val VERTICAL_ALIGN_BASELINE = 3: Int

VERTICAL_ALIGN_BOTTOM

Added in 2.2.2

const val VERTICAL_ALIGN_BOTTOM = 1: Int

VERTICAL_ALIGN_CENTER

Added in 2.2.2

const val VERTICAL_ALIGN_CENTER = 2: Int

VERTICAL_ALIGN_TOP

Added in 2.2.2

const val VERTICAL_ALIGN_TOP = 0: Int

WRAP_ALIGNED

Added in 2.2.2

const val WRAP_ALIGNED = 2: Int

WRAP_CHAIN

Added in 2.2.2

const val WRAP_CHAIN = 1: Int

WRAP_NONE

Added in 2.2.2

const val WRAP_NONE = 0: Int

Public constructors

Flow

Added in 2.2.2

Flow(context: Context!)

Flow

Added in 2.2.2

Flow(context: Context!, attrs: AttributeSet!)

Flow

Added in 2.2.2

Flow(context: Context!, attrs: AttributeSet!, defStyleAttr: Int)

Public functions

fun loadParameters(
    constraint: ConstraintSet.Constraint!,
    child: HelperWidget!,
    layoutParams: ConstraintLayout.LayoutParams!,
    mapIdToWidget: SparseArray<ConstraintWidget!>!
): Unit

Parameters
`constraint: ConstraintSet.Constraint!`
`child: HelperWidget!`
`layoutParams: ConstraintLayout.LayoutParams!`
`mapIdToWidget: SparseArray<ConstraintWidget!>!`

onMeasure

fun onMeasure(
    layout: VirtualLayout!,
    widthMeasureSpec: Int,
    heightMeasureSpec: Int
): Unit

Parameters
`layout: VirtualLayout!`
`widthMeasureSpec: Int`
`heightMeasureSpec: Int`

resolveRtl

fun resolveRtl(widget: ConstraintWidget!, isRtl: Boolean): Unit

Parameters
`widget: ConstraintWidget!`
`isRtl: Boolean`

setFirstHorizontalBias

Added in 2.2.2

fun setFirstHorizontalBias(bias: Float): Unit

Similar to setHorizontalBias(), but only applied to the first chain.

Parameters
`bias: Float`

setFirstHorizontalStyle

Added in 2.2.2

fun setFirstHorizontalStyle(style: Int): Unit

Similar to setHorizontalStyle(), but only applies to the first chain.

Parameters
`style: Int`

setFirstVerticalBias

Added in 2.2.2

fun setFirstVerticalBias(bias: Float): Unit

Similar to setVerticalBias(), but only applied to the first chain.

Parameters
`bias: Float`

setFirstVerticalStyle

Added in 2.2.2

fun setFirstVerticalStyle(style: Int): Unit

Similar to setVerticalStyle(), but only applies to the first chain.

Parameters
`style: Int`

setHorizontalAlign

Added in 2.2.2

fun setHorizontalAlign(align: Int): Unit

Set up the horizontal alignment of the elements in the layout, if the layout orientation is set to Flow.VERTICAL Can be either: Flow.HORIZONTAL_ALIGN_START Flow.HORIZONTAL_ALIGN_END Flow.HORIZONTAL_ALIGN_CENTER

Parameters
`align: Int`

setHorizontalBias

Added in 2.2.2

fun setHorizontalBias(bias: Float): Unit

Set the horizontal bias applied to the chain

Parameters
`bias: Float`	from 0 to 1

setHorizontalGap

Added in 2.2.2

fun setHorizontalGap(gap: Int): Unit

Set up the horizontal gap between elements

Parameters
`gap: Int`

setHorizontalStyle

Added in 2.2.2

fun setHorizontalStyle(style: Int): Unit

Set horizontal chain style. Can be: Flow.CHAIN_SPREAD Flow.CHAIN_SPREAD_INSIDE Flow.CHAIN_PACKED

Parameters
`style: Int`

setLastHorizontalBias

Added in 2.2.2

fun setLastHorizontalBias(bias: Float): Unit

Set the bias of the last Horizontal column.

Parameters
`bias: Float`

setLastHorizontalStyle

Added in 2.2.2

fun setLastHorizontalStyle(style: Int): Unit

Set the style of the last Horizontal column.

Parameters
`style: Int`	Flow.CHAIN_SPREAD, Flow.CHAIN_SPREAD_INSIDE, or Flow.CHAIN_PACKED

setLastVerticalBias

Added in 2.2.2

fun setLastVerticalBias(bias: Float): Unit

Set the bias of the last vertical row.

Parameters
`bias: Float`

setLastVerticalStyle

Added in 2.2.2

fun setLastVerticalStyle(style: Int): Unit

Set the style of the last vertical row.

Parameters
`style: Int`	Flow.CHAIN_SPREAD, Flow.CHAIN_SPREAD_INSIDE, or Flow.CHAIN_PACKED

setMaxElementsWrap

Added in 2.2.2

fun setMaxElementsWrap(max: Int): Unit

Set up the maximum number of elements before wrapping.

Parameters
`max: Int`

setOrientation

Added in 2.2.2

fun setOrientation(orientation: Int): Unit

Set the orientation of the layout

Parameters
`orientation: Int`	either Flow.HORIZONTAL or FLow.VERTICAL

setPadding

Added in 2.2.2

fun setPadding(padding: Int): Unit

Set padding around the content

Parameters
`padding: Int`

setPaddingBottom

Added in 2.2.2

fun setPaddingBottom(paddingBottom: Int): Unit

Set padding bottom around the content

Parameters
`paddingBottom: Int`

setPaddingLeft

Added in 2.2.2

fun setPaddingLeft(paddingLeft: Int): Unit

Set padding left around the content

Parameters
`paddingLeft: Int`

setPaddingRight

Added in 2.2.2

fun setPaddingRight(paddingRight: Int): Unit

Set padding right around the content

Parameters
`paddingRight: Int`

setPaddingTop

Added in 2.2.2

fun setPaddingTop(paddingTop: Int): Unit

Set padding top around the content

Parameters
`paddingTop: Int`

setVerticalAlign

Added in 2.2.2

fun setVerticalAlign(align: Int): Unit

Set up the vertical alignment of the elements in the layout, if the layout orientation is set to Flow.HORIZONTAL Can be either: Flow.VERTICAL_ALIGN_TOP Flow.VERTICAL_ALIGN_BOTTOM Flow.VERTICAL_ALIGN_CENTER Flow.VERTICAL_ALIGN_BASELINE

Parameters
`align: Int`

setVerticalBias

Added in 2.2.2

fun setVerticalBias(bias: Float): Unit

Set the vertical bias applied to the chain

Parameters
`bias: Float`	from 0 to 1

setVerticalGap

Added in 2.2.2

fun setVerticalGap(gap: Int): Unit

Set up the vertical gap between elements

Parameters
`gap: Int`

setVerticalStyle

Added in 2.2.2

fun setVerticalStyle(style: Int): Unit

Set vertical chain style. Can be: Flow.CHAIN_SPREAD Flow.CHAIN_SPREAD_INSIDE Flow.CHAIN_PACKED

Parameters
`style: Int`

setWrapMode

Added in 2.2.2

fun setWrapMode(mode: Int): Unit

Set wrap mode for the layout. Can be: Flow.WRAP_NONE (default) -- no wrap behavior, create a single chain Flow.WRAP_CHAIN -- if not enough space to fit the referenced elements, will create additional chains after the first one Flow.WRAP_ALIGNED -- if not enough space to fit the referenced elements, will wrap the elements, keeping them aligned (like a table)

Parameters
`mode: Int`

Protected functions

init

protected fun init(attrs: AttributeSet!): Unit

Parameters
`attrs: AttributeSet!`

onMeasure

protected fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int): Unit