ConstraintHelper

Artifact: androidx.constraintlayout:constraintlayout

Added in 2.2.1

Kotlin |Java

abstract class ConstraintHelper : View

kotlin.Any
↳	android.view.View
	↳	androidx.constraintlayout.widget.ConstraintHelper

Known direct subclasses

Barrier, Group, Layer, MotionHelper, VirtualLayout

`Barrier`	Added in 1.1
`Group`	Control the visibility and elevation of the referenced views Added in 1.1
`Layer`	Layer adds the ability to move and rotate a group of views as if they were contained in a viewGroup Added in 2.0 Methods such as setRotation(float) rotate all views about a common center.
`MotionHelper`
`VirtualLayout`	Added in 2.0

Known indirect subclasses

Carousel, CircularFlow, Flow, Grid, MotionEffect, MotionPlaceholder

`Carousel`	Carousel works within a MotionLayout to provide a simple recycler like pattern.
`CircularFlow`	CircularFlow virtual layout.
`Flow`	Flow VirtualLayout.
`Grid`	A helper class that helps arrange widgets in a grid form
`MotionEffect`	MotionHelper that automatically inserts keyframes for views moving in a given direction, out of:
`MotionPlaceholder`

Added in 1.1

This class manages a set of referenced widgets. HelperWidget objects can be created to act upon the set of referenced widgets. The difference between ConstraintHelper and ViewGroup is that multiple ConstraintHelper can reference the same widgets.

Widgets are referenced by being added to a comma separated list of ids, e.g.:

        <androidx.constraintlayout.widget.Barrier
             android:id="@+id/barrier"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             app:barrierDirection="start"
             app:constraint_referenced_ids="button1,button2" />

Summary

Constants
`const String!`	`CHILD_TAG = "CONSTRAINT_LAYOUT_HELPER_CHILD"`

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

Public functions
`Unit`	`addView(view: View!)` Add a view to the helper.
`Unit`	`applyHelperParams()` hook for helpers to apply parameters in MotionLayout
`Boolean`	`containsId(id: Int)` does id table contain the id
`IntArray<Int>!`	`getReferencedIds()` Helpers typically reference a collection of ids
`Int`	`indexFromId(id: Int)` find the position of an id
`java-static Boolean`	`isChildOfHelper(v: View!)`
`Unit`	`loadParameters( constraint: ConstraintSet.Constraint!, child: HelperWidget!, layoutParams: ConstraintLayout.LayoutParams!, mapIdToWidget: SparseArray<ConstraintWidget!>! )` Load the parameters
`Unit`	`onDraw(canvas: Canvas)`
`Int`	`removeView(view: View!)` Remove a given view from the helper.
`Unit`	`resolveRtl(widget: ConstraintWidget!, isRtl: Boolean)` resolve the RTL
`Unit`	`setReferencedIds(ids: IntArray!)` 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

Protected functions
`Unit`	`applyLayoutFeatures()`
`Unit`	`applyLayoutFeatures(container: ConstraintLayout!)`
`Unit`	`applyLayoutFeaturesInConstraintSet(container: ConstraintLayout!)`
`Array<View!>!`	`getViews(layout: ConstraintLayout!)`
`Unit`	`init(attrs: AttributeSet!)`
`Unit`	`onAttachedToWindow()`
`Unit`	`onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int)`
`Unit`	`setIds(idList: String!)`
`Unit`	`setReferenceTags(tagList: String!)`

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

Inherited Constants

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 IntArray<Int>!`	`EMPTY_STATE_SET`
`const IntArray<Int>!`	`ENABLED_FOCUSED_SELECTED_STATE_SET`
`const IntArray<Int>!`	`ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`ENABLED_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`ENABLED_SELECTED_STATE_SET`
`const IntArray<Int>!`	`ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`ENABLED_STATE_SET`
`const IntArray<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 IntArray<Int>!`	`FOCUSED_SELECTED_STATE_SET`
`const IntArray<Int>!`	`FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`FOCUSED_STATE_SET`
`const IntArray<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 IntArray<Int>!`	`PRESSED_ENABLED_FOCUSED_SELECTED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_ENABLED_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_ENABLED_SELECTED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_ENABLED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_ENABLED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_FOCUSED_SELECTED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_FOCUSED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_SELECTED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_SELECTED_WINDOW_FOCUSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_STATE_SET`
`const IntArray<Int>!`	`PRESSED_WINDOW_FOCUSED_STATE_SET`
`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 IntArray<Int>!`	`SELECTED_STATE_SET`
`const IntArray<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 IntArray<Int>!`	`WINDOW_FOCUSED_STATE_SET`
`const Property<View!, Float!>!`	`X`
`const Property<View!, Float!>!`	`Y`
`const Property<View!, Float!>!`	`Z`

Inherited functions

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!>!, supportedFormats: IntArray!, 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!, offsetInWindow: IntArray! )`
`Boolean`	`dispatchNestedScroll( dxConsumed: Int, dyConsumed: Int, dxUnconsumed: Int, dyUnconsumed: Int, offsetInWindow: IntArray! )`
`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()`
`IntArray<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()`
`IntArray<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!)`
`Unit`	`getLocationInWindow(outLocation: IntArray!)`
`Unit`	`getLocationOnScreen(outLocation: IntArray!)`
`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()`
`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 IntArray<Int>!`	`mergeDrawableStates(baseState: IntArray!, additionalState: IntArray!)`
`Unit`	`offsetLeftAndRight(offset: Int)`
`Unit`	`offsetTopAndBottom(offset: Int)`
`Unit`	`onAnimationEnd()`
`Unit`	`onAnimationStart()`
`WindowInsets!`	`onApplyWindowInsets(insets: WindowInsets!)`
`Unit`	`onCancelPendingInputEvents()`
`Boolean`	`onCapturedPointerEvent(event: MotionEvent!)`
`Boolean`	`onCheckIsTextEditor()`
`Unit`	`onConfigurationChanged(newConfig: Configuration!)`
`Unit`	`onCreateContextMenu(menu: ContextMenu!)`
`IntArray<Int>!`	`onCreateDrawableState(extraSpace: Int)`
`InputConnection!`	`onCreateInputConnection(outAttrs: EditorInfo!)`
`Unit`	`onCreateViewTranslationRequest( supportedFormats: IntArray!, requestsCollector: Consumer<ViewTranslationRequest!>! )`
`Unit`	`onCreateVirtualViewTranslationRequests( virtualIds: LongArray!, supportedFormats: IntArray!, requestsCollector: Consumer<ViewTranslationRequest!>! )`
`Unit`	`onDetachedFromWindow()`
`Unit`	`onDisplayHint(hint: Int)`
`Boolean`	`onDragEvent(event: DragEvent!)`
`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`	`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(feedbackConstant: Int)`
`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()`
`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!, 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)`
`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`	`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!)`
`Unit`	`unscheduleDrawable(who: Drawable!)`
`Unit`	`updateDragShadow(shadowBuilder: View.DragShadowBuilder!)`
`Boolean`	`verifyDrawable(who: Drawable!)`
`Boolean`	`willNotCacheDrawing()` This function is deprecated.
`Boolean`	`willNotDraw()`

Constants

CHILD_TAG

Added in 2.2.1

protected const val CHILD_TAG = "CONSTRAINT_LAYOUT_HELPER_CHILD": String!

Public constructors

ConstraintHelper

Added in 2.2.1

ConstraintHelper(context: Context!)

ConstraintHelper

Added in 2.2.1

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

ConstraintHelper

Added in 2.2.1

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

Public functions

addView

Added in 2.2.1

fun addView(view: View!): Unit

Add a view to the helper. The referenced view need to be a child of the helper's parent. The view also need to have its id set in order to be added.

Parameters
`view: View!`

applyHelperParams

Added in 2.2.1

fun applyHelperParams(): Unit

hook for helpers to apply parameters in MotionLayout

containsId

Added in 2.2.1

fun containsId(id: Int): Boolean

does id table contain the id

Parameters
`id: Int`

Returns
`Boolean`

getReferencedIds

Added in 2.2.1

fun getReferencedIds(): IntArray<Int>!

Helpers typically reference a collection of ids

Returns
`IntArray<Int>!`	ids referenced

indexFromId

Added in 2.2.1

fun indexFromId(id: Int): Int

find the position of an id

Parameters
`id: Int`

Returns
`Int`

isChildOfHelper

Added in 2.2.1

java-static fun isChildOfHelper(v: View!): Boolean

Added in 2.2.1

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

Load the parameters

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

onDraw

Added in 2.2.1

fun onDraw(canvas: Canvas): Unit

removeView

Added in 2.2.1

fun removeView(view: View!): Int

Remove a given view from the helper.

Parameters
`view: View!`

Returns
`Int`	index of view removed

resolveRtl

Added in 2.2.1

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

resolve the RTL

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

setReferencedIds

Added in 2.2.1

fun setReferencedIds(ids: IntArray!): Unit

Helpers typically reference a collection of ids

setTag

fun setTag(key: Int, tag: Any!): Unit

Added in 2.2.1

fun updatePostConstraints(container: ConstraintLayout!): Unit

update after constraints are resolved

Parameters
`container: ConstraintLayout!`

Added in 2.2.1

fun updatePostLayout(container: ConstraintLayout!): Unit

Allows a helper a chance to update its internal object post layout or set up connections for the pointed elements

Parameters
`container: ConstraintLayout!`

Added in 2.2.1

fun updatePostMeasure(container: ConstraintLayout!): Unit

Parameters
`container: ConstraintLayout!`

Added in 2.2.1

fun updatePreDraw(container: ConstraintLayout!): Unit

called before the draw

Parameters
`container: ConstraintLayout!`

Added in 2.2.1

fun updatePreLayout(container: ConstraintLayout!): Unit

Allows a helper a chance to update its internal object pre layout or set up connections for the pointed elements

Parameters
`container: ConstraintLayout!`

updatePreLayout

Added in 2.2.1

fun updatePreLayout(
    container: ConstraintWidgetContainer!,
    helper: Helper!,
    map: SparseArray<ConstraintWidget!>!
): Unit

called before solver resolution

Parameters
`container: ConstraintWidgetContainer!`
`helper: Helper!`
`map: SparseArray<ConstraintWidget!>!`

validateParams

Added in 2.2.1

fun validateParams(): Unit

Allows a helper to replace the default ConstraintWidget in LayoutParams by its own subclass

Protected functions

applyLayoutFeatures

Added in 2.2.1

protected fun applyLayoutFeatures(): Unit

Added in 2.2.1

protected fun applyLayoutFeatures(container: ConstraintLayout!): Unit

Parameters
`container: ConstraintLayout!`

Added in 2.2.1

protected fun applyLayoutFeaturesInConstraintSet(container: ConstraintLayout!): Unit

Added in 2.2.1

protected fun getViews(layout: ConstraintLayout!): Array<View!>!

init

Added in 2.2.1

protected fun init(attrs: AttributeSet!): Unit

onAttachedToWindow

protected fun onAttachedToWindow(): Unit

onMeasure

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

setIds

Added in 2.2.1

protected fun setIds(idList: String!): Unit

setReferenceTags

Added in 2.2.1

protected fun setReferenceTags(tagList: String!): Unit

Protected properties

mCount

Added in 2.2.1

protected val mCount: Int

mHelperWidget

Added in 2.2.1

protected val mHelperWidget: Helper!

mIds

Added in 2.2.1

protected val mIds: IntArray<Int>!

mMap

Added in 2.2.1

protected val mMap: HashMap<Int!, String!>!

mReferenceIds

Added in 2.2.1

protected val mReferenceIds: String!

mReferenceTags

Added in 2.2.1

protected val mReferenceTags: String!

mUseViewMeasure

Added in 2.2.1

protected val mUseViewMeasure: Boolean

myContext

Added in 2.2.1

protected val myContext: Context!