Barrier

Artifact: androidx.constraintlayout:constraintlayout

Added in 2.2.0

Kotlin |Java

public class Barrier extends ConstraintHelper

java.lang.Object
↳	android.view.View
	↳	androidx.constraintlayout.widget.ConstraintHelper
		↳	androidx.constraintlayout.widget.Barrier

Added in 1.1

A Barrier references multiple widgets as input, and creates a virtual guideline based on the most extreme widget on the specified side. For example, a left barrier will align to the left of all the referenced views.

Example

Let's have two buttons, @id/button1 and @id/button2. The constraint_referenced_ids field will reference them by simply having them as comma-separated list:

        <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" />

With the barrier direction set to start, we will have the following result:

Reversely, with the direction set to end, we will have:

If the widgets dimensions change, the barrier will automatically move according to its direction to get the most extreme widget:

Other widgets can then be constrained to the barrier itself, instead of the individual widget. This allows a layout to automatically adapt on widget dimension changes (e.g. different languages will end up with different length for similar worlds).

GONE widgets handling

If the barrier references GONE widgets, the default behavior is to create a barrier on the resolved position of the GONE widget. If you do not want to have the barrier take GONE widgets into account, you can change this by setting the attribute barrierAllowsGoneWidgets to false (default being true).

Summary

Constants
`static final int`	`BOTTOM = 3` Bottom direction constant
`static final int`	`END = 6` End Barrier constant
`static final int`	`LEFT = 0` Left direction constant
`static final int`	`RIGHT = 1` Right direction constant
`static final int`	`START = 5` Start direction constant
`static final int`	`TOP = 2` Top direction constant

Public constructors
`Barrier(Context context)`
`Barrier(Context context, AttributeSet attrs)`
`Barrier(Context context, AttributeSet attrs, int defStyleAttr)`

Public methods
`boolean`	`allowsGoneWidget()` This method is deprecated. This method should be called `getAllowsGoneWidget` such that `allowsGoneWidget` can be accessed as a property from Kotlin; {@see https://android.github.io/kotlin-guides/interop.html#property-prefixes}.
`boolean`	`getAllowsGoneWidget()` Find if this barrier supports gone widgets.
`int`	`getMargin()` Returns the barrier margin
`int`	`getType()` Get the barrier type (`Barrier.LEFT`, `Barrier.TOP`, `Barrier.RIGHT`, `Barrier.BOTTOM`, `Barrier.END`, `Barrier.START`)
`void`	`loadParameters( ConstraintSet.Constraint constraint, HelperWidget child, ConstraintLayout.LayoutParams layoutParams, SparseArray<ConstraintWidget> mapIdToWidget )` Load the parameters
`void`	`resolveRtl(ConstraintWidget widget, boolean isRtl)` resolve the RTL
`void`	`setAllowsGoneWidget(boolean supportGone)` allows gone widgets to be included in the barrier
`void`	`setDpMargin(int margin)` Set a margin on the barrier
`void`	`setMargin(int margin)` Set the barrier margin
`void`	`setType(int type)` Set the barrier type (`Barrier.LEFT`, `Barrier.TOP`, `Barrier.RIGHT`, `Barrier.BOTTOM`, `Barrier.END`, `Barrier.START`)

Protected methods
`void`	`init(AttributeSet attrs)`

Inherited Constants

From androidx.constraintlayout.widget.ConstraintHelper

static final String

CHILD_TAG = "CONSTRAINT_LAYOUT_HELPER_CHILD"

From android.view.View

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

Inherited fields

From androidx.constraintlayout.widget.ConstraintHelper

`int`	`mCount`
`Helper`	`mHelperWidget`
`int[]`	`mIds`
`HashMap<Integer, String>`	`mMap`
`String`	`mReferenceIds`
`String`	`mReferenceTags`
`boolean`	`mUseViewMeasure`
`Context`	`myContext`

Inherited methods

From androidx.constraintlayout.widget.ConstraintHelper

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

From android.view.View

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

Constants

BOTTOM

Added in 2.2.0

public static final int BOTTOM = 3

Bottom direction constant

END

Added in 2.2.0

public static final int END = 6

End Barrier constant

LEFT

Added in 2.2.0

public static final int LEFT = 0

Left direction constant

RIGHT

Added in 2.2.0

public static final int RIGHT = 1

Right direction constant

START

Added in 2.2.0

public static final int START = 5

Start direction constant

TOP

Added in 2.2.0

public static final int TOP = 2

Top direction constant

Public constructors

Barrier

Added in 2.2.0

public Barrier(Context context)

Barrier

Added in 2.2.0

public Barrier(Context context, AttributeSet attrs)

Barrier

Added in 2.2.0

public Barrier(Context context, AttributeSet attrs, int defStyleAttr)

Public methods

allowsGoneWidget

Added in 2.2.0

Deprecated in 2.2.0

public boolean allowsGoneWidget()

Find if this barrier supports gone widgets.

Returns
`boolean`	true if this barrier supports gone widgets, otherwise false

getAllowsGoneWidget

Added in 2.2.0

public boolean getAllowsGoneWidget()

Find if this barrier supports gone widgets.

Returns
`boolean`	true if this barrier supports gone widgets, otherwise false

getMargin

Added in 2.2.0

public int getMargin()

Returns the barrier margin

Returns
`int`	the barrier margin (in pixels)

getType

Added in 2.2.0

public int getType()

Get the barrier type (Barrier.LEFT, Barrier.TOP, Barrier.RIGHT, Barrier.BOTTOM, Barrier.END, Barrier.START)

public void loadParameters(
    ConstraintSet.Constraint constraint,
    HelperWidget child,
    ConstraintLayout.LayoutParams layoutParams,
    SparseArray<ConstraintWidget> mapIdToWidget
)

Load the parameters

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

resolveRtl

public void resolveRtl(ConstraintWidget widget, boolean isRtl)

resolve the RTL

Parameters
`ConstraintWidget widget`
`boolean isRtl`

setAllowsGoneWidget

Added in 2.2.0

public void setAllowsGoneWidget(boolean supportGone)

allows gone widgets to be included in the barrier

Parameters
`boolean supportGone`

setDpMargin

Added in 2.2.0

public void setDpMargin(int margin)

Set a margin on the barrier

Parameters
`int margin`	in dp

setMargin

Added in 2.2.0

public void setMargin(int margin)

Set the barrier margin

Parameters
`int margin`	in pixels

setType

Added in 2.2.0

public void setType(int type)

Set the barrier type (Barrier.LEFT, Barrier.TOP, Barrier.RIGHT, Barrier.BOTTOM, Barrier.END, Barrier.START)

Protected methods

init

protected void init(AttributeSet attrs)

Parameters
`AttributeSet attrs`