InProgressStrokesView

Kotlin |Java

public final class InProgressStrokesView extends FrameLayout

java.lang.Object
↳	android.view.View
	↳	android.view.ViewGroup
		↳	android.widget.FrameLayout
			↳	androidx.ink.authoring.InProgressStrokesView

Displays in-progress ink strokes as MotionEvent user inputs are provided to it.

Summary

Public constructors
`InProgressStrokesView( @NonNull Context context, AttributeSet attrs, @AttrRes int defStyleAttr )`

Public methods
`final void`	`addFinishedStrokesListener( @NonNull InProgressStrokesFinishedListener listener )` Add a listener to be notified when strokes are finished.
`final void`	`addToStroke( @NonNull StrokeInputBatch inputs, @NonNull InProgressStrokeId strokeId, @NonNull StrokeInputBatch prediction )` Add input data from a `StrokeInputBatch` to an existing stroke.
`final void`	`addToStroke( @NonNull MotionEvent event, int pointerId, @NonNull InProgressStrokeId strokeId, MotionEvent prediction )` Add input data, from a particular pointer within a `MotionEvent`, to an existing stroke.
`final void`	`cancelStroke(@NonNull InProgressStrokeId strokeId, MotionEvent event)` Cancel the building of a stroke.
`final void`	`eagerInit()` Eagerly initialize rather than waiting for the first stroke to be drawn.
`final void`	`finishStroke( @NonNull StrokeInput input, @NonNull InProgressStrokeId strokeId )` Complete the building of a stroke, with the last input data coming from a `StrokeInput`.
`final void`	`finishStroke( @NonNull MotionEvent event, int pointerId, @NonNull InProgressStrokeId strokeId )` Complete the building of a stroke, with the last input data coming from a particular pointer of a `MotionEvent`.
`final @NonNull Map<@NonNull InProgressStrokeId, @NonNull Stroke>`	`getFinishedStrokes()` Returns all the finished strokes that are still being rendered by this view.
`final CountingIdlingResource`	`getInProgressStrokeCounter()` Allows a test to easily wait until all in-progress strokes are completed and handed off.
`final Path`	`getMaskPath()` Denote an area of this `InProgressStrokesView` where no ink should be visible.
`final @NonNull Matrix`	`getMotionEventToViewTransform()` The transform matrix to convert `MotionEvent` coordinates, as passed to `startStroke`, `addToStroke`, and `finishStroke`, into coordinates of this `InProgressStrokesView` for rendering.
`final @NonNull Function0<@NonNull CanvasStrokeRenderer>`	`getRendererFactory()` A function that creates a `CanvasStrokeRenderer` when invoked.
`final void`	`removeFinishedStrokes(@NonNull Set<@NonNull InProgressStrokeId> strokeIds)` Stop this view from rendering the strokes with the given IDs.
`final void`	`removeFinishedStrokesListener( @NonNull InProgressStrokesFinishedListener listener )` Removes a listener that had previously been added with `addFinishedStrokesListener`.
`final void`	`setInProgressStrokeCounter( @VisibleForTesting CountingIdlingResource inProgressStrokeCounter )` Allows a test to easily wait until all in-progress strokes are completed and handed off.
`final void`	`setMaskPath(Path maskPath)` Denote an area of this `InProgressStrokesView` where no ink should be visible.
`final void`	`setMotionEventToViewTransform( @NonNull Matrix motionEventToViewTransform )` The transform matrix to convert `MotionEvent` coordinates, as passed to `startStroke`, `addToStroke`, and `finishStroke`, into coordinates of this `InProgressStrokesView` for rendering.
`final void`	`setRendererFactory( @NonNull Function0<@NonNull CanvasStrokeRenderer> rendererFactory )` A function that creates a `CanvasStrokeRenderer` when invoked.
`final @NonNull InProgressStrokeId`	`startStroke( @NonNull StrokeInput input, @NonNull Brush brush, @NonNull Matrix strokeToViewTransform )` Start building a stroke with the provided `input`.
`final @NonNull InProgressStrokeId`	`startStroke( @NonNull MotionEvent event, int pointerId, @NonNull Brush brush, @NonNull Matrix motionEventToWorldTransform, @NonNull Matrix strokeToWorldTransform )` Start building a stroke using a particular pointer within a `MotionEvent`.

Protected methods
`void`	`onAttachedToWindow()`

Inherited methods

From android.widget.FrameLayout

`boolean`	`checkLayoutParams(@NonNull ViewGroup.LayoutParams p0)`
`@NonNull FrameLayout.LayoutParams`	`generateDefaultLayoutParams()`
`@NonNull FrameLayout.LayoutParams`	`generateLayoutParams(@NonNull AttributeSet p0)`
`@NonNull ViewGroup.LayoutParams`	`generateLayoutParams(@NonNull ViewGroup.LayoutParams p0)`
`@NonNull CharSequence`	`getAccessibilityClassName()`
`boolean`	`getConsiderGoneChildrenWhenMeasuring()` This method is deprecated. Deprecated in Java
`boolean`	`getMeasureAllChildren()`
`void`	`onLayout(boolean p0, int p1, int p2, int p3, int p4)`
`void`	`onMeasure(int p0, int p1)`
`void`	`setForegroundGravity(int p0)`
`void`	`setMeasureAllChildren(boolean p0)`
`boolean`	`shouldDelayChildPressedState()`

From android.view.View

`void`	`addFocusables(@NonNull ArrayList<@NonNull View> p0, int p1)`
`void`	`addOnAttachStateChangeListener( @NonNull View.OnAttachStateChangeListener p0 )`
`void`	`addOnLayoutChangeListener(@NonNull View.OnLayoutChangeListener p0)`
`void`	`addOnUnhandledKeyEventListener( @NonNull View.OnUnhandledKeyEventListener p0 )`
`@NonNull ViewPropertyAnimator`	`animate()`
`void`	`announceForAccessibility(@NonNull CharSequence p0)`
`void`	`autofill(@NonNull AutofillValue p0)`
`void`	`autofill(@NonNull SparseArray<@NonNull AutofillValue> p0)`
`boolean`	`awakenScrollBars()`
`boolean`	`awakenScrollBars(int p0)`
`boolean`	`awakenScrollBars(int p0, boolean p1)`
`void`	`bringToFront()`
`void`	`buildDrawingCache()` This method is deprecated. Deprecated in Java
`void`	`buildDrawingCache(boolean p0)` This method is deprecated. Deprecated in Java
`void`	`buildLayer()`
`boolean`	`callOnClick()`
`boolean`	`canResolveLayoutDirection()`
`boolean`	`canResolveTextAlignment()`
`boolean`	`canResolveTextDirection()`
`boolean`	`canScrollHorizontally(int p0)`
`boolean`	`canScrollVertically(int p0)`
`final void`	`cancelDragAndDrop()`
`void`	`cancelLongPress()`
`final void`	`cancelPendingInputEvents()`
`boolean`	`checkInputConnectionProxy(@NonNull View p0)`
`void`	`clearAnimation()`
`void`	`clearViewTranslationCallback()`
`int`	`computeHorizontalScrollExtent()`
`int`	`computeHorizontalScrollOffset()`
`int`	`computeHorizontalScrollRange()`
`void`	`computeScroll()`
`@NonNull WindowInsets`	`computeSystemWindowInsets(@NonNull WindowInsets p0, @NonNull Rect p1)`
`int`	`computeVerticalScrollExtent()`
`int`	`computeVerticalScrollOffset()`
`int`	`computeVerticalScrollRange()`
`@NonNull AccessibilityNodeInfo`	`createAccessibilityNodeInfo()`
`void`	`createContextMenu(@NonNull ContextMenu p0)`
`void`	`destroyDrawingCache()` This method is deprecated. Deprecated in Java
`boolean`	`dispatchGenericMotionEvent(@NonNull MotionEvent p0)`
`boolean`	`dispatchNestedFling(float p0, float p1, boolean p2)`
`boolean`	`dispatchNestedPreFling(float p0, float p1)`
`boolean`	`dispatchNestedPrePerformAccessibilityAction(int p0, @Nullable Bundle p1)`
`boolean`	`dispatchNestedPreScroll( int p0, int p1, @Nullable int[] p2, @Nullable int[] p3 )`
`boolean`	`dispatchNestedScroll(int p0, int p1, int p2, int p3, @Nullable int[] p4)`
`boolean`	`dispatchPopulateAccessibilityEvent(@NonNull AccessibilityEvent p0)`
`void`	`draw(@NonNull Canvas p0)`
`void`	`drawableHotspotChanged(float p0, float p1)`
`final @Nullable OnBackInvokedDispatcher`	`findOnBackInvokedDispatcher()`
`final @NonNull T`	`<T extends View> findViewById(int p0)`
`final @NonNull T`	`<T extends View> findViewWithTag(@NonNull Object p0)`
`boolean`	`fitSystemWindows(@NonNull Rect p0)` This method is deprecated. Deprecated in Java
`@NonNull View`	`focusSearch(int p0)`
`void`	`forceHasOverlappingRendering(boolean p0)`
`void`	`forceLayout()`
`void`	`generateDisplayHash( @NonNull String p0, @Nullable Rect p1, @NonNull Executor p2, @NonNull DisplayHashResultCallback p3 )`
`@NonNull View.AccessibilityDelegate`	`getAccessibilityDelegate()`
`int`	`getAccessibilityLiveRegion()`
`@NonNull AccessibilityNodeProvider`	`getAccessibilityNodeProvider()`
`@Nullable CharSequence`	`getAccessibilityPaneTitle()`
`int`	`getAccessibilityTraversalAfter()`
`int`	`getAccessibilityTraversalBefore()`
`@Nullable String`	`getAllowedHandwritingDelegatePackageName()`
`@Nullable String`	`getAllowedHandwritingDelegatorPackageName()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getAlpha()`
`@NonNull Animation`	`getAnimation()`
`@Nullable Matrix`	`getAnimationMatrix()`
`@NonNull IBinder`	`getApplicationWindowToken()`
`@NonNull int[]`	`getAttributeResolutionStack(int p0)`
`@NonNull Map<@NonNull Integer, @NonNull Integer>`	`getAttributeSourceResourceMap()`
`@Nullable String[]`	`@ViewDebug.ExportedProperty getAutofillHints()`
`final @NonNull AutofillId`	`getAutofillId()`
`int`	`getAutofillType()`
`@Nullable AutofillValue`	`getAutofillValue()`
`@NonNull Drawable`	`getBackground()`
`@Nullable BlendMode`	`getBackgroundTintBlendMode()`
`@Nullable ColorStateList`	`getBackgroundTintList()`
`@Nullable PorterDuff.Mode`	`getBackgroundTintMode()`
`int`	`@ViewDebug.ExportedProperty(category = "layout") getBaseline()`
`final int`	`@ViewDebug.CapturedViewProperty getBottom()`
`float`	`getBottomFadingEdgeStrength()`
`int`	`getBottomPaddingOffset()`
`float`	`getCameraDistance()`
`@NonNull Rect`	`getClipBounds()`
`boolean`	`getClipBounds(@NonNull Rect p0)`
`final boolean`	`getClipToOutline()`
`final @Nullable ContentCaptureSession`	`getContentCaptureSession()`
`@NonNull CharSequence`	`@ViewDebug.ExportedProperty(category = "accessibility") getContentDescription()`
`final @NonNull Context`	`@ViewDebug.CapturedViewProperty getContext()`
`@NonNull ContextMenu.ContextMenuInfo`	`getContextMenuInfo()`
`final boolean`	`@ViewDebug.ExportedProperty(category = "focus") getDefaultFocusHighlightEnabled()`
`@NonNull Display`	`getDisplay()`
`final @NonNull int[]`	`getDrawableState()`
`@NonNull Bitmap`	`getDrawingCache()` This method is deprecated. Deprecated in Java
`@NonNull Bitmap`	`getDrawingCache(boolean p0)` This method is deprecated. Deprecated in Java
`int`	`getDrawingCacheBackgroundColor()` This method is deprecated. Deprecated in Java
`int`	`getDrawingCacheQuality()` This method is deprecated. Deprecated in Java
`void`	`getDrawingRect(@NonNull Rect p0)`
`long`	`getDrawingTime()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getElevation()`
`int`	`getExplicitStyle()`
`boolean`	`@ViewDebug.ExportedProperty getFilterTouchesWhenObscured()`
`boolean`	`@ViewDebug.ExportedProperty getFitsSystemWindows()`
`int`	`@ViewDebug.ExportedProperty(mapping = [@ViewDebug.IntToString(from = 0, to = "NOT_FOCUSABLE"), @ViewDebug.IntToString(from = 1, to = "FOCUSABLE"), @ViewDebug.IntToString(from = 16, to = "FOCUSABLE_AUTO")], category = "focus") getFocusable()`
`@NonNull ArrayList<@NonNull View>`	`getFocusables(int p0)`
`void`	`getFocusedRect(@NonNull Rect p0)`
`@NonNull Drawable`	`getForeground()`
`int`	`getForegroundGravity()`
`@Nullable BlendMode`	`getForegroundTintBlendMode()`
`@Nullable ColorStateList`	`getForegroundTintList()`
`@Nullable PorterDuff.Mode`	`getForegroundTintMode()`
`final boolean`	`getGlobalVisibleRect(@NonNull Rect p0)`
`boolean`	`getGlobalVisibleRect(@NonNull Rect p0, @NonNull Point p1)`
`@NonNull Handler`	`getHandler()`
`float`	`getHandwritingBoundsOffsetBottom()`
`float`	`getHandwritingBoundsOffsetLeft()`
`float`	`getHandwritingBoundsOffsetRight()`
`float`	`getHandwritingBoundsOffsetTop()`
`@Nullable Runnable`	`getHandwritingDelegatorCallback()`
`final boolean`	`getHasOverlappingRendering()`
`final int`	`@ViewDebug.ExportedProperty(category = "layout") getHeight()`
`void`	`getHitRect(@NonNull Rect p0)`
`int`	`getHorizontalFadingEdgeLength()`
`int`	`getHorizontalScrollbarHeight()`
`@Nullable Drawable`	`getHorizontalScrollbarThumbDrawable()`
`@Nullable Drawable`	`getHorizontalScrollbarTrackDrawable()`
`int`	`@ViewDebug.CapturedViewProperty getId()`
`int`	`@ViewDebug.ExportedProperty(category = "accessibility", mapping = [@ViewDebug.IntToString(from = 0, to = "auto"), @ViewDebug.IntToString(from = 1, to = "yes"), @ViewDebug.IntToString(from = 2, to = "no"), @ViewDebug.IntToString(from = 4, to = "noHideDescendants")]) getImportantForAccessibility()`
`int`	`@ViewDebug.ExportedProperty(mapping = [@ViewDebug.IntToString(from = 0, to = "auto"), @ViewDebug.IntToString(from = 1, to = "yes"), @ViewDebug.IntToString(from = 2, to = "no"), @ViewDebug.IntToString(from = 4, to = "yesExcludeDescendants"), @ViewDebug.IntToString(from = 8, to = "noExcludeDescendants")]) getImportantForAutofill()`
`int`	`@ViewDebug.ExportedProperty(mapping = [@ViewDebug.IntToString(from = 0, to = "auto"), @ViewDebug.IntToString(from = 1, to = "yes"), @ViewDebug.IntToString(from = 2, to = "no"), @ViewDebug.IntToString(from = 4, to = "yesExcludeDescendants"), @ViewDebug.IntToString(from = 8, to = "noExcludeDescendants")]) getImportantForContentCapture()`
`boolean`	`getKeepScreenOn()`
`@NonNull KeyEvent.DispatcherState`	`getKeyDispatcherState()`
`int`	`@ViewDebug.ExportedProperty(category = "accessibility") getLabelFor()`
`int`	`getLayerType()`
`int`	`@ViewDebug.ExportedProperty(category = "layout", mapping = [@ViewDebug.IntToString(from = 0, to = "RESOLVED_DIRECTION_LTR"), @ViewDebug.IntToString(from = 1, to = "RESOLVED_DIRECTION_RTL")]) getLayoutDirection()`
`@NonNull ViewGroup.LayoutParams`	`@ViewDebug.ExportedProperty(deepExport = true, prefix = "layout_") getLayoutParams()`
`final int`	`@ViewDebug.CapturedViewProperty getLeft()`
`float`	`getLeftFadingEdgeStrength()`
`int`	`getLeftPaddingOffset()`
`final boolean`	`getLocalVisibleRect(@NonNull Rect p0)`
`void`	`getLocationInSurface(@NonNull int[] p0)`
`void`	`getLocationInWindow(@NonNull int[] p0)`
`void`	`getLocationOnScreen(@NonNull int[] p0)`
`@NonNull Matrix`	`getMatrix()`
`final int`	`getMeasuredHeight()`
`final int`	`@ViewDebug.ExportedProperty(category = "measurement", flagMapping = [@ViewDebug.FlagToString(mask = -16777216, equals = 16777216, name = "MEASURED_STATE_TOO_SMALL")]) getMeasuredHeightAndState()`
`final int`	`getMeasuredState()`
`final int`	`getMeasuredWidth()`
`final int`	`@ViewDebug.ExportedProperty(category = "measurement", flagMapping = [@ViewDebug.FlagToString(mask = -16777216, equals = 16777216, name = "MEASURED_STATE_TOO_SMALL")]) getMeasuredWidthAndState()`
`int`	`getMinimumHeight()`
`int`	`getMinimumWidth()`
`int`	`getNextClusterForwardId()`
`int`	`getNextFocusDownId()`
`int`	`getNextFocusForwardId()`
`int`	`getNextFocusLeftId()`
`int`	`getNextFocusRightId()`
`int`	`getNextFocusUpId()`
`@NonNull View.OnFocusChangeListener`	`getOnFocusChangeListener()`
`int`	`getOutlineAmbientShadowColor()`
`@NonNull ViewOutlineProvider`	`getOutlineProvider()`
`int`	`getOutlineSpotShadowColor()`
`int`	`getOverScrollMode()`
`int`	`getPaddingBottom()`
`int`	`getPaddingEnd()`
`int`	`getPaddingLeft()`
`int`	`getPaddingRight()`
`int`	`getPaddingStart()`
`int`	`getPaddingTop()`
`final @NonNull ViewParent`	`getParent()`
`@NonNull ViewParent`	`getParentForAccessibility()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getPivotX()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getPivotY()`
`@NonNull PointerIcon`	`getPointerIcon()`
`final @NonNull List<@NonNull Rect>`	`getPreferKeepClearRects()`
`@Nullable String[]`	`getReceiveContentMimeTypes()`
`@NonNull Resources`	`getResources()`
`final boolean`	`getRevealOnFocusHint()`
`final int`	`@ViewDebug.CapturedViewProperty getRight()`
`float`	`getRightFadingEdgeStrength()`
`int`	`getRightPaddingOffset()`
`@Nullable AttachedSurfaceControl`	`getRootSurfaceControl()`
`@NonNull View`	`getRootView()`
`@NonNull WindowInsets`	`getRootWindowInsets()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getRotation()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getRotationX()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getRotationY()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getScaleX()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getScaleY()`
`int`	`getScrollBarDefaultDelayBeforeFade()`
`int`	`getScrollBarFadeDuration()`
`int`	`getScrollBarSize()`
`int`	`@ViewDebug.ExportedProperty(mapping = [@ViewDebug.IntToString(from = 0, to = "INSIDE_OVERLAY"), @ViewDebug.IntToString(from = 16777216, to = "INSIDE_INSET"), @ViewDebug.IntToString(from = 33554432, to = "OUTSIDE_OVERLAY"), @ViewDebug.IntToString(from = 50331648, to = "OUTSIDE_INSET")]) getScrollBarStyle()`
`int`	`getScrollCaptureHint()`
`int`	`getScrollIndicators()`
`final int`	`getScrollX()`
`final int`	`getScrollY()`
`int`	`@ViewDebug.ExportedProperty(category = "drawing") getSolidColor()`
`int`	`getSourceLayoutResId()`
`final @Nullable CharSequence`	`@ViewDebug.ExportedProperty(category = "accessibility") getStateDescription()`
`@NonNull StateListAnimator`	`getStateListAnimator()`
`int`	`getSuggestedMinimumHeight()`
`int`	`getSuggestedMinimumWidth()`
`@NonNull List<@NonNull Rect>`	`getSystemGestureExclusionRects()`
`int`	`getSystemUiVisibility()` This method is deprecated. Deprecated in Java
`@NonNull Object`	`@ViewDebug.ExportedProperty getTag()`
`@NonNull Object`	`getTag(int p0)`
`int`	`@ViewDebug.ExportedProperty(category = "text", mapping = [@ViewDebug.IntToString(from = 0, to = "INHERIT"), @ViewDebug.IntToString(from = 1, to = "GRAVITY"), @ViewDebug.IntToString(from = 2, to = "TEXT_START"), @ViewDebug.IntToString(from = 3, to = "TEXT_END"), @ViewDebug.IntToString(from = 4, to = "CENTER"), @ViewDebug.IntToString(from = 5, to = "VIEW_START"), @ViewDebug.IntToString(from = 6, to = "VIEW_END")]) getTextAlignment()`
`int`	@ViewDebug.ExportedProperty(category = "text", mapping = [@ViewDebug.IntToString(from = 0, to = "INHERIT"), @ViewDebug.IntToString(from = 1, to = "FIRST_STRONG"), @ViewDebug.IntToString(from = 2, to = "ANY_RTL"), @ViewDebug.IntToString(from = 3, to = "LTR"), @ViewDebug.IntToString(from = 4, to = "RTL"), @ViewDebug.IntToString(from = 5, to = "LOCALE"), @ViewDebug.IntToString(from = 6, to = "FIRST_STRONG_LTR"), @ViewDebug.IntToString(from = 7, to = "FIRST_STRONG_RTL")]) getTextDirection()
`@Nullable CharSequence`	`getTooltipText()`
`final int`	`@ViewDebug.CapturedViewProperty getTop()`
`float`	`getTopFadingEdgeStrength()`
`int`	`getTopPaddingOffset()`
`@NonNull TouchDelegate`	`getTouchDelegate()`
`@NonNull ArrayList<@NonNull View>`	`getTouchables()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getTransitionAlpha()`
`@NonNull String`	`@ViewDebug.ExportedProperty getTransitionName()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getTranslationX()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getTranslationY()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getTranslationZ()`
`long`	`getUniqueDrawingId()`
`int`	`getVerticalFadingEdgeLength()`
`int`	`getVerticalScrollbarPosition()`
`@Nullable Drawable`	`getVerticalScrollbarThumbDrawable()`
`@Nullable Drawable`	`getVerticalScrollbarTrackDrawable()`
`int`	`getVerticalScrollbarWidth()`
`@Nullable ViewTranslationResponse`	`getViewTranslationResponse()`
`@NonNull ViewTreeObserver`	`getViewTreeObserver()`
`int`	`@ViewDebug.ExportedProperty(mapping = [@ViewDebug.IntToString(from = 0, to = "VISIBLE"), @ViewDebug.IntToString(from = 4, to = "INVISIBLE"), @ViewDebug.IntToString(from = 8, to = "GONE")]) getVisibility()`
`final int`	`@ViewDebug.ExportedProperty(category = "layout") getWidth()`
`int`	`getWindowAttachCount()`
`@NonNull WindowId`	`getWindowId()`
`@Nullable WindowInsetsController`	`getWindowInsetsController()`
`int`	`getWindowSystemUiVisibility()` This method is deprecated. Deprecated in Java
`@NonNull IBinder`	`getWindowToken()`
`int`	`getWindowVisibility()`
`void`	`getWindowVisibleDisplayFrame(@NonNull Rect p0)`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getX()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getY()`
`float`	`@ViewDebug.ExportedProperty(category = "drawing") getZ()`
`boolean`	`hasExplicitFocusable()`
`boolean`	`hasFocusable()`
`boolean`	`hasNestedScrollingParent()`
`boolean`	`hasOnClickListeners()`
`boolean`	`hasOnLongClickListeners()`
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") hasOverlappingRendering()`
`boolean`	`hasPointerCapture()`
`boolean`	`hasWindowFocus()`
`void`	`invalidate()`
`void`	`invalidate(@NonNull Rect p0)` This method is deprecated. Deprecated in Java
`void`	`invalidate(int p0, int p1, int p2, int p3)` This method is deprecated. Deprecated in Java
`void`	`invalidateDrawable(@NonNull Drawable p0)`
`void`	`invalidateOutline()`
`boolean`	`@ViewDebug.ExportedProperty(category = "accessibility") isAccessibilityDataSensitive()`
`boolean`	`isAccessibilityFocused()`
`boolean`	`isAccessibilityHeading()`
`boolean`	`@ViewDebug.ExportedProperty isActivated()`
`boolean`	`isAttachedToWindow()`
`boolean`	`isAutoHandwritingEnabled()`
`boolean`	`@ViewDebug.ExportedProperty isClickable()`
`boolean`	`isContextClickable()`
`boolean`	`isCredential()`
`boolean`	`isDirty()`
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") isDrawingCacheEnabled()` This method is deprecated. Deprecated in Java
`boolean`	`isDuplicateParentStateEnabled()`
`boolean`	`@ViewDebug.ExportedProperty isEnabled()`
`final boolean`	`@ViewDebug.ExportedProperty(category = "focus") isFocusable()`
`final boolean`	`@ViewDebug.ExportedProperty(category = "focus") isFocusableInTouchMode()`
`boolean`	`@ViewDebug.ExportedProperty(category = "focus") isFocused()`
`final boolean`	`@ViewDebug.ExportedProperty(category = "focus") isFocusedByDefault()`
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") isForceDarkAllowed()`
`boolean`	`isHandwritingDelegate()`
`boolean`	`@ViewDebug.ExportedProperty isHapticFeedbackEnabled()`
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") isHardwareAccelerated()`
`boolean`	`isHorizontalFadingEdgeEnabled()`
`boolean`	`isHorizontalScrollBarEnabled()`
`boolean`	`@ViewDebug.ExportedProperty isHovered()`
`boolean`	`isImportantForAccessibility()`
`final boolean`	`isImportantForAutofill()`
`final boolean`	`isImportantForContentCapture()`
`boolean`	`isInEditMode()`
`boolean`	`isInLayout()`
`boolean`	`@ViewDebug.ExportedProperty isInTouchMode()`
`final boolean`	`@ViewDebug.ExportedProperty(category = "focus") isKeyboardNavigationCluster()`
`boolean`	`isLaidOut()`
`boolean`	`isLayoutDirectionResolved()`
`boolean`	`isLayoutRequested()`
`boolean`	`isLongClickable()`
`boolean`	`isNestedScrollingEnabled()`
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") isOpaque()`
`boolean`	`isPaddingOffsetRequired()`
`boolean`	`isPaddingRelative()`
`boolean`	`isPivotSet()`
`final boolean`	`isPreferKeepClear()`
`boolean`	`@ViewDebug.ExportedProperty isPressed()`
`boolean`	`isSaveEnabled()`
`boolean`	`isSaveFromParentEnabled()`
`boolean`	`isScreenReaderFocusable()`
`boolean`	`isScrollContainer()`
`boolean`	`isScrollbarFadingEnabled()`
`boolean`	`@ViewDebug.ExportedProperty isSelected()`
`final boolean`	`isShowingLayoutBounds()`
`boolean`	`isShown()`
`boolean`	`@ViewDebug.ExportedProperty isSoundEffectsEnabled()`
`final boolean`	`isTemporarilyDetached()`
`boolean`	`isTextAlignmentResolved()`
`boolean`	`isTextDirectionResolved()`
`boolean`	`isVerticalFadingEdgeEnabled()`
`boolean`	`isVerticalScrollBarEnabled()`
`boolean`	`isVisibleToUserForAutofill(int p0)`
`@NonNull View`	`keyboardNavigationClusterSearch(@NonNull View p0, int p1)`
`final void`	`measure(int p0, int p1)`
`void`	`offsetLeftAndRight(int p0)`
`void`	`offsetTopAndBottom(int p0)`
`void`	`onAnimationEnd()`
`void`	`onAnimationStart()`
`@NonNull WindowInsets`	`onApplyWindowInsets(@NonNull WindowInsets p0)`
`void`	`onCancelPendingInputEvents()`
`boolean`	`onCapturedPointerEvent(@NonNull MotionEvent p0)`
`boolean`	`onCheckIsTextEditor()`
`void`	`onConfigurationChanged(@NonNull Configuration p0)`
`void`	`onCreateContextMenu(@NonNull ContextMenu p0)`
`@NonNull InputConnection`	`onCreateInputConnection(@NonNull EditorInfo p0)`
`void`	`onCreateViewTranslationRequest( @NonNull int[] p0, @NonNull Consumer<@NonNull ViewTranslationRequest> p1 )`
`void`	`onCreateVirtualViewTranslationRequests( @NonNull long[] p0, @NonNull int[] p1, @NonNull Consumer<@NonNull ViewTranslationRequest> p2 )`
`void`	`onDisplayHint(int p0)`
`boolean`	`onDragEvent(@NonNull DragEvent p0)`
`void`	`onDraw(@NonNull Canvas p0)`
`void`	`onDrawForeground(@NonNull Canvas p0)`
`final void`	`onDrawScrollBars(@NonNull Canvas p0)`
`boolean`	`onFilterTouchEventForSecurity(@NonNull MotionEvent p0)`
`void`	`onFinishInflate()`
`void`	`onFinishTemporaryDetach()`
`void`	`onFocusChanged(boolean p0, int p1, @Nullable Rect p2)`
`boolean`	`onGenericMotionEvent(@NonNull MotionEvent p0)`
`void`	`onHoverChanged(boolean p0)`
`boolean`	`onHoverEvent(@NonNull MotionEvent p0)`
`void`	`onInitializeAccessibilityEvent(@NonNull AccessibilityEvent p0)`
`void`	`onInitializeAccessibilityNodeInfo(@NonNull AccessibilityNodeInfo p0)`
`boolean`	`onKeyDown(int p0, @NonNull KeyEvent p1)`
`boolean`	`onKeyLongPress(int p0, @NonNull KeyEvent p1)`
`boolean`	`onKeyMultiple(int p0, int p1, @NonNull KeyEvent p2)`
`boolean`	`onKeyPreIme(int p0, @NonNull KeyEvent p1)`
`boolean`	`onKeyShortcut(int p0, @NonNull KeyEvent p1)`
`boolean`	`onKeyUp(int p0, @NonNull KeyEvent p1)`
`void`	`onOverScrolled(int p0, int p1, boolean p2, boolean p3)`
`void`	`onPointerCaptureChange(boolean p0)`
`void`	`onPopulateAccessibilityEvent(@NonNull AccessibilityEvent p0)`
`void`	`onProvideAutofillStructure(@NonNull ViewStructure p0, int p1)`
`void`	`onProvideAutofillVirtualStructure(@NonNull ViewStructure p0, int p1)`
`void`	`onProvideContentCaptureStructure(@NonNull ViewStructure p0, int p1)`
`void`	`onProvideStructure(@NonNull ViewStructure p0)`
`void`	`onProvideVirtualStructure(@NonNull ViewStructure p0)`
`@Nullable ContentInfo`	`onReceiveContent(@NonNull ContentInfo p0)`
`void`	`onRestoreInstanceState(@NonNull Parcelable p0)`
`void`	`onRtlPropertiesChanged(int p0)`
`@Nullable Parcelable`	`onSaveInstanceState()`
`void`	`onScreenStateChanged(int p0)`
`void`	`onScrollCaptureSearch( @NonNull Rect p0, @NonNull Point p1, @NonNull Consumer<@NonNull ScrollCaptureTarget> p2 )`
`void`	`onScrollChanged(int p0, int p1, int p2, int p3)`
`boolean`	`onSetAlpha(int p0)`
`void`	`onSizeChanged(int p0, int p1, int p2, int p3)`
`void`	`onStartTemporaryDetach()`
`boolean`	`onTouchEvent(@NonNull MotionEvent p0)`
`boolean`	`onTrackballEvent(@NonNull MotionEvent p0)`
`void`	`onViewTranslationResponse(@NonNull ViewTranslationResponse p0)`
`void`	`onVirtualViewTranslationResponses( @NonNull LongSparseArray<@NonNull ViewTranslationResponse> p0 )`
`void`	`onVisibilityAggregated(boolean p0)`
`void`	`onVisibilityChanged(@NonNull View p0, int p1)`
`void`	`onWindowFocusChanged(boolean p0)`
`void`	`onWindowSystemUiVisibilityChanged(int p0)` This method is deprecated. Deprecated in Java
`void`	`onWindowVisibilityChanged(int p0)`
`boolean`	`overScrollBy( int p0, int p1, int p2, int p3, int p4, int p5, int p6, int p7, boolean p8 )`
`boolean`	`performAccessibilityAction(int p0, @Nullable Bundle p1)`
`boolean`	`performClick()`
`boolean`	`performContextClick()`
`boolean`	`performContextClick(float p0, float p1)`
`boolean`	`performHapticFeedback(int p0)`
`boolean`	`performHapticFeedback(int p0, int p1)`
`boolean`	`performLongClick()`
`boolean`	`performLongClick(float p0, float p1)`
`@Nullable ContentInfo`	`performReceiveContent(@NonNull ContentInfo p0)`
`void`	`playSoundEffect(int p0)`
`boolean`	`post(@NonNull Runnable p0)`
`boolean`	`postDelayed(@NonNull Runnable p0, long p1)`
`void`	`postInvalidate()`
`void`	`postInvalidate(int p0, int p1, int p2, int p3)`
`void`	`postInvalidateDelayed(long p0)`
`void`	`postInvalidateDelayed(long p0, int p1, int p2, int p3, int p4)`
`void`	`postInvalidateOnAnimation()`
`void`	`postInvalidateOnAnimation(int p0, int p1, int p2, int p3)`
`void`	`postOnAnimation(@NonNull Runnable p0)`
`void`	`postOnAnimationDelayed(@NonNull Runnable p0, long p1)`
`void`	`refreshDrawableState()`
`void`	`releasePointerCapture()`
`boolean`	`removeCallbacks(@NonNull Runnable p0)`
`void`	`removeOnAttachStateChangeListener( @NonNull View.OnAttachStateChangeListener p0 )`
`void`	`removeOnLayoutChangeListener(@NonNull View.OnLayoutChangeListener p0)`
`void`	`removeOnUnhandledKeyEventListener( @NonNull View.OnUnhandledKeyEventListener p0 )`
`void`	`requestApplyInsets()`
`void`	`requestFitSystemWindows()` This method is deprecated. Deprecated in Java
`final boolean`	`requestFocus()`
`final boolean`	`requestFocus(int p0)`
`final boolean`	`requestFocusFromTouch()`
`void`	`requestLayout()`
`void`	`requestPointerCapture()`
`boolean`	`requestRectangleOnScreen(@NonNull Rect p0)`
`boolean`	`requestRectangleOnScreen(@NonNull Rect p0, boolean p1)`
`final void`	`requestUnbufferedDispatch(int p0)`
`final void`	`requestUnbufferedDispatch(@NonNull MotionEvent p0)`
`final @NonNull T`	`<T extends View> requireViewById(int p0)`
`void`	`resetPivot()`
`void`	`restoreHierarchyState(@NonNull SparseArray<@NonNull Parcelable> p0)`
`final void`	`saveAttributeDataForStyleable( @NonNull Context p0, @NonNull int[] p1, @Nullable AttributeSet p2, @NonNull TypedArray p3, int p4, int p5 )`
`void`	`saveHierarchyState(@NonNull SparseArray<@NonNull Parcelable> p0)`
`void`	`scheduleDrawable(@NonNull Drawable p0, @NonNull Runnable p1, long p2)`
`void`	`scrollBy(int p0, int p1)`
`void`	`scrollTo(int p0, int p1)`
`void`	`sendAccessibilityEvent(int p0)`
`void`	`sendAccessibilityEventUnchecked(@NonNull AccessibilityEvent p0)`
`void`	`setAccessibilityDataSensitive(int p0)`
`void`	`setAccessibilityDelegate(@Nullable View.AccessibilityDelegate p0)`
`void`	`setAccessibilityHeading(boolean p0)`
`void`	`setAccessibilityLiveRegion(int p0)`
`void`	`setAccessibilityPaneTitle(@Nullable CharSequence p0)`
`void`	`setAccessibilityTraversalAfter(int p0)`
`void`	`setAccessibilityTraversalBefore(int p0)`
`void`	`setActivated(boolean p0)`
`void`	`setAllowClickWhenDisabled(boolean p0)`
`void`	`setAllowedHandwritingDelegatePackage(@Nullable String p0)`
`void`	`setAllowedHandwritingDelegatorPackage(@Nullable String p0)`
`void`	`setAlpha(float p0)`
`void`	`setAnimation(@NonNull Animation p0)`
`void`	`setAnimationMatrix(@Nullable Matrix p0)`
`void`	`setAutoHandwritingEnabled(boolean p0)`
`void`	`setAutofillHints(@Nullable String p0)`
`void`	`setAutofillId(@Nullable AutofillId p0)`
`void`	`setBackground(@NonNull Drawable p0)`
`void`	`setBackgroundColor(int p0)`
`void`	`setBackgroundDrawable(@NonNull Drawable p0)` This method is deprecated. Deprecated in Java
`void`	`setBackgroundResource(int p0)`
`void`	`setBackgroundTintBlendMode(@Nullable BlendMode p0)`
`void`	`setBackgroundTintList(@Nullable ColorStateList p0)`
`void`	`setBackgroundTintMode(@Nullable PorterDuff.Mode p0)`
`final void`	`setBottom(int p0)`
`void`	`setCameraDistance(float p0)`
`void`	`setClickable(boolean p0)`
`void`	`setClipBounds(@NonNull Rect p0)`
`void`	`setClipToOutline(boolean p0)`
`void`	`setContentCaptureSession(@Nullable ContentCaptureSession p0)`
`void`	`setContentDescription(@NonNull CharSequence p0)`
`void`	`setContextClickable(boolean p0)`
`void`	`setDefaultFocusHighlightEnabled(boolean p0)`
`void`	`setDrawingCacheBackgroundColor(int p0)` This method is deprecated. Deprecated in Java
`void`	`setDrawingCacheEnabled(boolean p0)` This method is deprecated. Deprecated in Java
`void`	`setDrawingCacheQuality(int p0)` This method is deprecated. Deprecated in Java
`void`	`setDuplicateParentStateEnabled(boolean p0)`
`void`	`setElevation(float p0)`
`void`	`setEnabled(boolean p0)`
`void`	`setFadingEdgeLength(int p0)`
`void`	`setFilterTouchesWhenObscured(boolean p0)`
`void`	`setFitsSystemWindows(boolean p0)`
`void`	`setFocusable(boolean p0)`
`void`	`setFocusable(int p0)`
`void`	`setFocusableInTouchMode(boolean p0)`
`void`	`setFocusedByDefault(boolean p0)`
`void`	`setForceDarkAllowed(boolean p0)`
`void`	`setForeground(@NonNull Drawable p0)`
`void`	`setForegroundTintBlendMode(@Nullable BlendMode p0)`
`void`	`setForegroundTintList(@Nullable ColorStateList p0)`
`void`	`setForegroundTintMode(@Nullable PorterDuff.Mode p0)`
`void`	`setHandwritingBoundsOffsets(float p0, float p1, float p2, float p3)`
`void`	`setHandwritingDelegatorCallback(@Nullable Runnable p0)`
`void`	`setHapticFeedbackEnabled(boolean p0)`
`void`	`setHasTransientState(boolean p0)`
`void`	`setHorizontalFadingEdgeEnabled(boolean p0)`
`void`	`setHorizontalScrollBarEnabled(boolean p0)`
`void`	`setHorizontalScrollbarThumbDrawable(@Nullable Drawable p0)`
`void`	`setHorizontalScrollbarTrackDrawable(@Nullable Drawable p0)`
`void`	`setHovered(boolean p0)`
`void`	`setId(int p0)`
`void`	`setImportantForAccessibility(int p0)`
`void`	`setImportantForAutofill(int p0)`
`void`	`setImportantForContentCapture(int p0)`
`void`	`setIsCredential(boolean p0)`
`void`	`setIsHandwritingDelegate(boolean p0)`
`void`	`setKeepScreenOn(boolean p0)`
`void`	`setKeyboardNavigationCluster(boolean p0)`
`void`	`setLabelFor(int p0)`
`void`	`setLayerPaint(@Nullable Paint p0)`
`void`	`setLayerType(int p0, @Nullable Paint p1)`
`void`	`setLayoutDirection(int p0)`
`void`	`setLayoutParams(@NonNull ViewGroup.LayoutParams p0)`
`final void`	`setLeft(int p0)`
`final void`	`setLeftTopRightBottom(int p0, int p1, int p2, int p3)`
`void`	`setLongClickable(boolean p0)`
`final void`	`setMeasuredDimension(int p0, int p1)`
`void`	`setMinimumHeight(int p0)`
`void`	`setMinimumWidth(int p0)`
`void`	`setNestedScrollingEnabled(boolean p0)`
`void`	`setNextClusterForwardId(int p0)`
`void`	`setNextFocusDownId(int p0)`
`void`	`setNextFocusForwardId(int p0)`
`void`	`setNextFocusLeftId(int p0)`
`void`	`setNextFocusRightId(int p0)`
`void`	`setNextFocusUpId(int p0)`
`void`	`setOnApplyWindowInsetsListener( @NonNull View.OnApplyWindowInsetsListener p0 )`
`void`	`setOnCapturedPointerListener(@NonNull View.OnCapturedPointerListener p0)`
`void`	`setOnClickListener(@Nullable View.OnClickListener p0)`
`void`	`setOnContextClickListener(@Nullable View.OnContextClickListener p0)`
`void`	`setOnCreateContextMenuListener( @NonNull View.OnCreateContextMenuListener p0 )`
`void`	`setOnDragListener(@NonNull View.OnDragListener p0)`
`void`	`setOnFocusChangeListener(@NonNull View.OnFocusChangeListener p0)`
`void`	`setOnGenericMotionListener(@NonNull View.OnGenericMotionListener p0)`
`void`	`setOnHoverListener(@NonNull View.OnHoverListener p0)`
`void`	`setOnKeyListener(@NonNull View.OnKeyListener p0)`
`void`	`setOnLongClickListener(@Nullable View.OnLongClickListener p0)`
`void`	`setOnReceiveContentListener( @Nullable String[] p0, @Nullable OnReceiveContentListener p1 )`
`void`	`setOnScrollChangeListener(@NonNull View.OnScrollChangeListener p0)`
`void`	`setOnSystemUiVisibilityChangeListener( @NonNull View.OnSystemUiVisibilityChangeListener p0 )` This method is deprecated. Deprecated in Java
`void`	`setOnTouchListener(@NonNull View.OnTouchListener p0)`
`void`	`setOutlineAmbientShadowColor(int p0)`
`void`	`setOutlineProvider(@NonNull ViewOutlineProvider p0)`
`void`	`setOutlineSpotShadowColor(int p0)`
`void`	`setOverScrollMode(int p0)`
`void`	`setPadding(int p0, int p1, int p2, int p3)`
`void`	`setPaddingRelative(int p0, int p1, int p2, int p3)`
`void`	`setPivotX(float p0)`
`void`	`setPivotY(float p0)`
`void`	`setPointerIcon(@NonNull PointerIcon p0)`
`final void`	`setPreferKeepClear(boolean p0)`
`final void`	`setPreferKeepClearRects(@NonNull List<@NonNull Rect> p0)`
`void`	`setPressed(boolean p0)`
`void`	`setRenderEffect(@Nullable RenderEffect p0)`
`final void`	`setRevealOnFocusHint(boolean p0)`
`final void`	`setRight(int p0)`
`void`	`setRotation(float p0)`
`void`	`setRotationX(float p0)`
`void`	`setRotationY(float p0)`
`void`	`setSaveEnabled(boolean p0)`
`void`	`setSaveFromParentEnabled(boolean p0)`
`void`	`setScaleX(float p0)`
`void`	`setScaleY(float p0)`
`void`	`setScreenReaderFocusable(boolean p0)`
`void`	`setScrollBarDefaultDelayBeforeFade(int p0)`
`void`	`setScrollBarFadeDuration(int p0)`
`void`	`setScrollBarSize(int p0)`
`void`	`setScrollBarStyle(int p0)`
`final void`	`setScrollCaptureCallback(@Nullable ScrollCaptureCallback p0)`
`void`	`setScrollCaptureHint(int p0)`
`void`	`setScrollContainer(boolean p0)`
`void`	`setScrollIndicators(int p0)`
`void`	`setScrollIndicators(int p0, int p1)`
`void`	`setScrollX(int p0)`
`void`	`setScrollY(int p0)`
`void`	`setScrollbarFadingEnabled(boolean p0)`
`void`	`setSelected(boolean p0)`
`void`	`setSoundEffectsEnabled(boolean p0)`
`void`	`setStateDescription(@Nullable CharSequence p0)`
`void`	`setStateListAnimator(@NonNull StateListAnimator p0)`
`void`	`setSystemGestureExclusionRects(@NonNull List<@NonNull Rect> p0)`
`void`	`setSystemUiVisibility(int p0)` This method is deprecated. Deprecated in Java
`void`	`setTag(@NonNull Object p0)`
`void`	`setTag(int p0, @NonNull Object p1)`
`void`	`setTextAlignment(int p0)`
`void`	`setTextDirection(int p0)`
`void`	`setTooltipText(@Nullable CharSequence p0)`
`final void`	`setTop(int p0)`
`void`	`setTouchDelegate(@NonNull TouchDelegate p0)`
`void`	`setTransitionAlpha(float p0)`
`final void`	`setTransitionName(@NonNull String p0)`
`void`	`setTransitionVisibility(int p0)`
`void`	`setTranslationX(float p0)`
`void`	`setTranslationY(float p0)`
`void`	`setTranslationZ(float p0)`
`void`	`setVerticalFadingEdgeEnabled(boolean p0)`
`void`	`setVerticalScrollBarEnabled(boolean p0)`
`void`	`setVerticalScrollbarPosition(int p0)`
`void`	`setVerticalScrollbarThumbDrawable(@Nullable Drawable p0)`
`void`	`setVerticalScrollbarTrackDrawable(@Nullable Drawable p0)`
`void`	`setViewTranslationCallback(@NonNull ViewTranslationCallback p0)`
`void`	`setVisibility(int p0)`
`void`	`setWillNotCacheDrawing(boolean p0)` This method is deprecated. Deprecated in Java
`void`	`setWillNotDraw(boolean p0)`
`void`	`setX(float p0)`
`void`	`setY(float p0)`
`void`	`setZ(float p0)`
`boolean`	`showContextMenu()`
`boolean`	`showContextMenu(float p0, float p1)`
`@NonNull ActionMode`	`startActionMode(@NonNull ActionMode.Callback p0)`
`@NonNull ActionMode`	`startActionMode(@NonNull ActionMode.Callback p0, int p1)`
`void`	`startAnimation(@NonNull Animation p0)`
`final boolean`	`startDrag( @NonNull ClipData p0, @NonNull View.DragShadowBuilder p1, @NonNull Object p2, int p3 )` This method is deprecated. Deprecated in Java
`final boolean`	`startDragAndDrop( @NonNull ClipData p0, @NonNull View.DragShadowBuilder p1, @NonNull Object p2, int p3 )`
`boolean`	`startNestedScroll(int p0)`
`void`	`stopNestedScroll()`
`@NonNull String`	`toString()`
`void`	`transformMatrixToGlobal(@NonNull Matrix p0)`
`void`	`transformMatrixToLocal(@NonNull Matrix p0)`
`void`	`unscheduleDrawable(@NonNull Drawable p0)`
`void`	`unscheduleDrawable(@NonNull Drawable p0, @NonNull Runnable p1)`
`final void`	`updateDragShadow(@NonNull View.DragShadowBuilder p0)`
`boolean`	`verifyDrawable(@NonNull Drawable p0)`
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") willNotCacheDrawing()` This method is deprecated. Deprecated in Java
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") willNotDraw()`

From android.view.ViewGroup

`void`	`addChildrenForAccessibility(@NonNull ArrayList<@NonNull View> p0)`
`void`	`addExtraDataToAccessibilityNodeInfo( @NonNull AccessibilityNodeInfo p0, @NonNull String p1, @Nullable Bundle p2 )`
`void`	`addFocusables(@NonNull ArrayList<@NonNull View> p0, int p1, int p2)`
`void`	`addKeyboardNavigationClusters( @NonNull Collection<@NonNull View> p0, int p1 )`
`boolean`	`addStatesFromChildren()`
`void`	`addTouchables(@NonNull ArrayList<@NonNull View> p0)`
`void`	`addView(@NonNull View p0)`
`void`	`addView(@NonNull View p0, int p1)`
`void`	`addView(@NonNull View p0, @NonNull ViewGroup.LayoutParams p1)`
`void`	`addView(@NonNull View p0, int p1, int p2)`
`void`	`addView(@NonNull View p0, int p1, @NonNull ViewGroup.LayoutParams p2)`
`boolean`	`addViewInLayout( @NonNull View p0, int p1, @NonNull ViewGroup.LayoutParams p2 )`
`boolean`	`addViewInLayout( @NonNull View p0, int p1, @NonNull ViewGroup.LayoutParams p2, boolean p3 )`
`void`	`attachLayoutAnimationParameters( @NonNull View p0, @NonNull ViewGroup.LayoutParams p1, int p2, int p3 )`
`void`	`attachViewToParent( @NonNull View p0, int p1, @NonNull ViewGroup.LayoutParams p2 )`
`void`	`bringChildToFront(@NonNull View p0)`
`boolean`	`canAnimate()`
`void`	`childDrawableStateChanged(@NonNull View p0)`
`void`	`childHasTransientStateChanged(@NonNull View p0, boolean p1)`
`void`	`cleanupLayoutState(@NonNull View p0)`
`void`	`clearChildFocus(@NonNull View p0)`
`void`	`clearDisappearingChildren()`
`void`	`clearFocus()`
`void`	`debug(int p0)`
`void`	`detachAllViewsFromParent()`
`void`	`detachViewFromParent(int p0)`
`void`	`detachViewFromParent(@NonNull View p0)`
`void`	`detachViewsFromParent(int p0, int p1)`
`@NonNull WindowInsets`	`dispatchApplyWindowInsets(@NonNull WindowInsets p0)`
`boolean`	`dispatchCapturedPointerEvent(@NonNull MotionEvent p0)`
`void`	`dispatchConfigurationChanged(@NonNull Configuration p0)`
`void`	`dispatchCreateViewTranslationRequest( @NonNull Map<@NonNull AutofillId, @NonNull long[]> p0, @NonNull int[] p1, @Nullable TranslationCapability p2, @NonNull List<@NonNull ViewTranslationRequest> p3 )`
`void`	`dispatchDisplayHint(int p0)`
`boolean`	`dispatchDragEvent(@NonNull DragEvent p0)`
`void`	`dispatchDraw(@NonNull Canvas p0)`
`void`	`dispatchDrawableHotspotChanged(float p0, float p1)`
`void`	`dispatchFinishTemporaryDetach()`
`void`	`dispatchFreezeSelfOnly(@NonNull SparseArray<@NonNull Parcelable> p0)`
`boolean`	`dispatchGenericFocusedEvent(@NonNull MotionEvent p0)`
`boolean`	`dispatchGenericPointerEvent(@NonNull MotionEvent p0)`
`boolean`	`dispatchHoverEvent(@NonNull MotionEvent p0)`
`boolean`	`dispatchKeyEvent(@NonNull KeyEvent p0)`
`boolean`	`dispatchKeyEventPreIme(@NonNull KeyEvent p0)`
`boolean`	`dispatchKeyShortcutEvent(@NonNull KeyEvent p0)`
`void`	`dispatchPointerCaptureChanged(boolean p0)`
`void`	`dispatchProvideAutofillStructure(@NonNull ViewStructure p0, int p1)`
`void`	`dispatchProvideStructure(@NonNull ViewStructure p0)`
`void`	`dispatchRestoreInstanceState(@NonNull SparseArray<@NonNull Parcelable> p0)`
`void`	`dispatchSaveInstanceState(@NonNull SparseArray<@NonNull Parcelable> p0)`
`void`	`dispatchScrollCaptureSearch( @NonNull Rect p0, @NonNull Point p1, @NonNull Consumer<@NonNull ScrollCaptureTarget> p2 )`
`void`	`dispatchSetActivated(boolean p0)`
`void`	`dispatchSetPressed(boolean p0)`
`void`	`dispatchSetSelected(boolean p0)`
`void`	`dispatchStartTemporaryDetach()`
`void`	`dispatchSystemUiVisibilityChanged(int p0)` This method is deprecated. Deprecated in Java
`void`	`dispatchThawSelfOnly(@NonNull SparseArray<@NonNull Parcelable> p0)`
`boolean`	`dispatchTouchEvent(@NonNull MotionEvent p0)`
`boolean`	`dispatchTrackballEvent(@NonNull MotionEvent p0)`
`boolean`	`dispatchUnhandledMove(@NonNull View p0, int p1)`
`void`	`dispatchVisibilityChanged(@NonNull View p0, int p1)`
`void`	`dispatchWindowFocusChanged(boolean p0)`
`void`	`dispatchWindowInsetsAnimationEnd(@NonNull WindowInsetsAnimation p0)`
`void`	`dispatchWindowInsetsAnimationPrepare(@NonNull WindowInsetsAnimation p0)`
`@NonNull WindowInsets`	`dispatchWindowInsetsAnimationProgress( @NonNull WindowInsets p0, @NonNull List<@NonNull WindowInsetsAnimation> p1 )`
`@NonNull WindowInsetsAnimation.Bounds`	`dispatchWindowInsetsAnimationStart( @NonNull WindowInsetsAnimation p0, @NonNull WindowInsetsAnimation.Bounds p1 )`
`void`	`dispatchWindowSystemUiVisiblityChanged(int p0)` This method is deprecated. Deprecated in Java
`void`	`dispatchWindowVisibilityChanged(int p0)`
`boolean`	`drawChild(@NonNull Canvas p0, @NonNull View p1, long p2)`
`void`	`drawableStateChanged()`
`void`	`endViewTransition(@NonNull View p0)`
`@NonNull View`	`findFocus()`
`@Nullable OnBackInvokedDispatcher`	`findOnBackInvokedDispatcherForChild(@NonNull View p0, @NonNull View p1)`
`void`	`findViewsWithText( @NonNull ArrayList<@NonNull View> p0, @NonNull CharSequence p1, int p2 )`
`@NonNull View`	`focusSearch(@NonNull View p0, int p1)`
`void`	`focusableViewAvailable(@NonNull View p0)`
`boolean`	`gatherTransparentRegion(Region p0)`
`@NonNull View`	`getChildAt(int p0)`
`int`	`getChildCount()`
`final int`	`getChildDrawingOrder(int p0)`
`int`	`getChildDrawingOrder(int p0, int p1)`
`boolean`	`getChildStaticTransformation(@NonNull View p0, @NonNull Transformation p1)`
`boolean`	`getChildVisibleRect(@NonNull View p0, @NonNull Rect p1, @NonNull Point p2)`
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") getClipChildren()`
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") getClipToPadding()`
`int`	`@ViewDebug.ExportedProperty(category = "focus", mapping = [@ViewDebug.IntToString(from = 131072, to = "FOCUS_BEFORE_DESCENDANTS"), @ViewDebug.IntToString(from = 262144, to = "FOCUS_AFTER_DESCENDANTS"), @ViewDebug.IntToString(from = 393216, to = "FOCUS_BLOCK_DESCENDANTS")]) getDescendantFocusability()`
`@NonNull View`	`getFocusedChild()`
`@NonNull LayoutAnimationController`	`getLayoutAnimation()`
`@NonNull Animation.AnimationListener`	`getLayoutAnimationListener()`
`int`	`getLayoutMode()`
`@NonNull LayoutTransition`	`getLayoutTransition()`
`int`	`getNestedScrollAxes()`
`@NonNull ViewGroupOverlay`	`getOverlay()`
`int`	`@ViewDebug.ExportedProperty(category = "drawing", mapping = [@ViewDebug.IntToString(from = 0, to = "NONE"), @ViewDebug.IntToString(from = 1, to = "ANIMATION"), @ViewDebug.IntToString(from = 2, to = "SCROLLING"), @ViewDebug.IntToString(from = 3, to = "ALL")]) getPersistentDrawingCache()` This method is deprecated. Deprecated in Java
`boolean`	`@ViewDebug.ExportedProperty(category = "focus") getTouchscreenBlocksFocus()`
`boolean`	`hasFocus()`
`boolean`	`hasTransientState()`
`int`	`indexOfChild(@NonNull View p0)`
`final void`	`invalidateChild(@NonNull View p0, @NonNull Rect p1)` This method is deprecated. Deprecated in Java
`@NonNull ViewParent`	`invalidateChildInParent(@NonNull int[] p0, @NonNull Rect p1)` This method is deprecated. Deprecated in Java
`boolean`	`isAlwaysDrawnWithCacheEnabled()` This method is deprecated. Deprecated in Java
`boolean`	`isAnimationCacheEnabled()` This method is deprecated. Deprecated in Java
`boolean`	`@ViewDebug.ExportedProperty(category = "drawing") isChildrenDrawingOrderEnabled()`
`boolean`	`isChildrenDrawnWithCacheEnabled()` This method is deprecated. Deprecated in Java
`boolean`	`isLayoutSuppressed()`
`boolean`	`isMotionEventSplittingEnabled()`
`boolean`	`isTransitionGroup()`
`void`	`jumpDrawablesToCurrentState()`
`final void`	`layout(int p0, int p1, int p2, int p3)`
`void`	`measureChild(@NonNull View p0, int p1, int p2)`
`void`	`measureChildWithMargins(@NonNull View p0, int p1, int p2, int p3, int p4)`
`void`	`measureChildren(int p0, int p1)`
`void`	`notifySubtreeAccessibilityStateChanged( @NonNull View p0, @NonNull View p1, int p2 )`
`final void`	`offsetDescendantRectToMyCoords(@NonNull View p0, @NonNull Rect p1)`
`final void`	`offsetRectIntoDescendantCoords(@NonNull View p0, @NonNull Rect p1)`
`@NonNull int[]`	`onCreateDrawableState(int p0)`
`void`	`onDescendantInvalidated(@NonNull View p0, @NonNull View p1)`
`void`	`onDetachedFromWindow()`
`boolean`	`onInterceptHoverEvent(@NonNull MotionEvent p0)`
`boolean`	`onInterceptTouchEvent(@NonNull MotionEvent p0)`
`boolean`	`onNestedFling(@NonNull View p0, float p1, float p2, boolean p3)`
`boolean`	`onNestedPreFling(@NonNull View p0, float p1, float p2)`
`boolean`	`onNestedPrePerformAccessibilityAction(@NonNull View p0, int p1, Bundle p2)`
`void`	`onNestedPreScroll(@NonNull View p0, int p1, int p2, @NonNull int[] p3)`
`void`	`onNestedScroll(@NonNull View p0, int p1, int p2, int p3, int p4)`
`void`	`onNestedScrollAccepted(@NonNull View p0, @NonNull View p1, int p2)`
`boolean`	`onRequestFocusInDescendants(int p0, @NonNull Rect p1)`
`boolean`	`onRequestSendAccessibilityEvent( @NonNull View p0, @NonNull AccessibilityEvent p1 )`
`@NonNull PointerIcon`	`onResolvePointerIcon(@NonNull MotionEvent p0, int p1)`
`boolean`	`onStartNestedScroll(@NonNull View p0, @NonNull View p1, int p2)`
`void`	`onStopNestedScroll(@NonNull View p0)`
`void`	`onViewAdded(@NonNull View p0)`
`void`	`onViewRemoved(@NonNull View p0)`
`void`	`recomputeViewAttributes(@NonNull View p0)`
`void`	`removeAllViews()`
`void`	`removeAllViewsInLayout()`
`void`	`removeDetachedView(@NonNull View p0, boolean p1)`
`void`	`removeView(@NonNull View p0)`
`void`	`removeViewAt(int p0)`
`void`	`removeViewInLayout(@NonNull View p0)`
`void`	`removeViews(int p0, int p1)`
`void`	`removeViewsInLayout(int p0, int p1)`
`void`	`requestChildFocus(@NonNull View p0, @NonNull View p1)`
`boolean`	`requestChildRectangleOnScreen( @NonNull View p0, @NonNull Rect p1, boolean p2 )`
`void`	`requestDisallowInterceptTouchEvent(boolean p0)`
`boolean`	`requestFocus(int p0, @NonNull Rect p1)`
`boolean`	`requestSendAccessibilityEvent( @NonNull View p0, @NonNull AccessibilityEvent p1 )`
`void`	`requestTransparentRegion(@NonNull View p0)`
`boolean`	`restoreDefaultFocus()`
`void`	`scheduleLayoutAnimation()`
`void`	`setAddStatesFromChildren(boolean p0)`
`void`	`setAlwaysDrawnWithCacheEnabled(boolean p0)` This method is deprecated. Deprecated in Java
`void`	`setAnimationCacheEnabled(boolean p0)` This method is deprecated. Deprecated in Java
`void`	`setChildrenDrawingCacheEnabled(boolean p0)` This method is deprecated. Deprecated in Java
`void`	`setChildrenDrawingOrderEnabled(boolean p0)`
`void`	`setChildrenDrawnWithCacheEnabled(boolean p0)` This method is deprecated. Deprecated in Java
`void`	`setClipChildren(boolean p0)`
`void`	`setClipToPadding(boolean p0)`
`void`	`setDescendantFocusability(int p0)`
`void`	`setLayoutAnimation(@NonNull LayoutAnimationController p0)`
`void`	`setLayoutAnimationListener(@NonNull Animation.AnimationListener p0)`
`void`	`setLayoutMode(int p0)`
`void`	`setLayoutTransition(@NonNull LayoutTransition p0)`
`void`	`setMotionEventSplittingEnabled(boolean p0)`
`void`	`setOnHierarchyChangeListener( @NonNull ViewGroup.OnHierarchyChangeListener p0 )`
`void`	`setPersistentDrawingCache(int p0)` This method is deprecated. Deprecated in Java
`void`	`setStaticTransformationsEnabled(boolean p0)`
`void`	`setTouchscreenBlocksFocus(boolean p0)`
`void`	`setTransitionGroup(boolean p0)`
`void`	`setWindowInsetsAnimationCallback( @Nullable WindowInsetsAnimation.Callback p0 )`
`boolean`	`showContextMenuForChild(@NonNull View p0)`
`boolean`	`showContextMenuForChild(@NonNull View p0, float p1, float p2)`
`@NonNull ActionMode`	`startActionModeForChild(@NonNull View p0, @NonNull ActionMode.Callback p1)`
`@NonNull ActionMode`	`startActionModeForChild( @NonNull View p0, @NonNull ActionMode.Callback p1, int p2 )`
`void`	`startLayoutAnimation()`
`void`	`startViewTransition(@NonNull View p0)`
`void`	`suppressLayout(boolean p0)`
`void`	`updateViewLayout(@NonNull View p0, @NonNull ViewGroup.LayoutParams p1)`

Public constructors

InProgressStrokesView

Added in 1.0.0-alpha02

public InProgressStrokesView(
    @NonNull Context context,
    AttributeSet attrs,
    @AttrRes int defStyleAttr
)

Public methods

addFinishedStrokesListener

Added in 1.0.0-alpha02

public final void addFinishedStrokesListener(
    @NonNull InProgressStrokesFinishedListener listener
)

Add a listener to be notified when strokes are finished. These strokes will continue to be rendered within this view until removeFinishedStrokes is called. All of the strokes that have been delivered to listeners but have not yet been removed with removeFinishedStrokes are available through getFinishedStrokes.

addToStroke

Added in 1.0.0-alpha02

public final void addToStroke(
    @NonNull StrokeInputBatch inputs,
    @NonNull InProgressStrokeId strokeId,
    @NonNull StrokeInputBatch prediction
)

Add input data from a StrokeInputBatch to an existing stroke.

Parameters
`@NonNull StrokeInputBatch inputs`	The next `StrokeInputBatch` to be added to the stroke.
`@NonNull InProgressStrokeId strokeId`	The `InProgressStrokeId` of the stroke to be built upon.
`@NonNull StrokeInputBatch prediction`	Predicted `StrokeInputBatch` containing predicted inputs between `inputs` and the time of the next frame. This can technically be empty, but it is strongly recommended for it to be non-empty to achieve the best performance.

addToStroke

Added in 1.0.0-alpha02

public final void addToStroke(
    @NonNull MotionEvent event,
    int pointerId,
    @NonNull InProgressStrokeId strokeId,
    MotionEvent prediction
)

Add input data, from a particular pointer within a MotionEvent, to an existing stroke.

Parameters
`@NonNull MotionEvent event`	The next `MotionEvent` as part of a stroke's input data, typically one with `MotionEvent.getActionMasked` of `MotionEvent.ACTION_MOVE`.
`int pointerId`	The identifier of the pointer within `event` to be used for inking, as determined by `MotionEvent.getPointerId` and used as an input to `MotionEvent.findPointerIndex`. Note that this is the ID of the pointer, not its index.
`@NonNull InProgressStrokeId strokeId`	The `InProgressStrokeId` of the stroke to be built upon.
`MotionEvent prediction`	Predicted `MotionEvent` containing predicted inputs between `event` and the time of the next frame. This value typically comes from `androidx.input.motionprediction.MotionEventPredictor.predict`. It is technically optional, but it is strongly recommended to achieve the best performance.

cancelStroke

Added in 1.0.0-alpha02

public final void cancelStroke(@NonNull InProgressStrokeId strokeId, MotionEvent event)

Cancel the building of a stroke. It will no longer be visible within this InProgressStrokesView, and no completed Stroke object will come through InProgressStrokesFinishedListener.

This is typically done for one of three reasons:

A MotionEvent with MotionEvent.getActionMasked of MotionEvent.ACTION_CANCEL. This tends to be when an entire gesture has been canceled, for example when a parent View uses android.view.ViewGroup.onInterceptTouchEvent to intercept and handle the gesture itself.
A MotionEvent with MotionEvent.getFlags containing MotionEvent.FLAG_CANCELED. This tends to be when the system has detected an unintentional touch, such as from the user resting their palm on the screen while writing or drawing, after some events from that unintentional pointer have already been delivered.
An app's business logic reinterprets a gesture previously used for inking as something else, and the earlier inking may be seen as unintentional. For example, an app that uses single-pointer gestures for inking and dual-pointer gestures for pan/zoom/rotate will start inking when the first pointer goes down, but when the second pointer goes down it may want to cancel the stroke from the first pointer rather than leave the small ink marks on the screen.

Parameters
`@NonNull InProgressStrokeId strokeId`	The `InProgressStrokeId` of the stroke to be canceled.
`MotionEvent event`	The `MotionEvent` that led to this cancellation, if applicable.

eagerInit

Added in 1.0.0-alpha02

public final void eagerInit()

Eagerly initialize rather than waiting for the first stroke to be drawn. Since initialization can be somewhat heavyweight, doing this as soon as it's likely for the user to start drawing can prevent initialization from introducing latency to the first stroke.

finishStroke

Added in 1.0.0-alpha02

public final void finishStroke(
    @NonNull StrokeInput input,
    @NonNull InProgressStrokeId strokeId
)

Complete the building of a stroke, with the last input data coming from a StrokeInput.

Parameters
`@NonNull StrokeInput input`	The last `StrokeInput` in the stroke.
`@NonNull InProgressStrokeId strokeId`	The `InProgressStrokeId` of the stroke to be finished.

finishStroke

Added in 1.0.0-alpha02

public final void finishStroke(
    @NonNull MotionEvent event,
    int pointerId,
    @NonNull InProgressStrokeId strokeId
)

Complete the building of a stroke, with the last input data coming from a particular pointer of a MotionEvent.

When the stroke no longer needs to be rendered by this InProgressStrokesView and can instead be rendered anywhere in the View hierarchy using CanvasStrokeRenderer, the resulting Stroke object will be passed to the InProgressStrokesFinishedListener instances registered with this InProgressStrokesView using addFinishedStrokesListener.

Parameters
`@NonNull MotionEvent event`	The last `MotionEvent` as part of a stroke's input data, typically one with `MotionEvent.getActionMasked` of `MotionEvent.ACTION_UP` or `MotionEvent.ACTION_POINTER_UP`, but can also be other actions.
`int pointerId`	The identifier of the pointer within `event` to be used for inking, as determined by `MotionEvent.getPointerId` and used as an input to `MotionEvent.findPointerIndex`. Note that this is the ID of the pointer, not its index.
`@NonNull InProgressStrokeId strokeId`	The `InProgressStrokeId` of the stroke to be finished.

getFinishedStrokes

Added in 1.0.0-alpha02

public final @NonNull Map<@NonNull InProgressStrokeId, @NonNull Stroke> getFinishedStrokes()

Returns all the finished strokes that are still being rendered by this view. The IDs of these strokes should be passed to removeFinishedStrokes when they are handed off to another view.

getInProgressStrokeCounter

Added in 1.0.0-alpha02

public final CountingIdlingResource getInProgressStrokeCounter()

Allows a test to easily wait until all in-progress strokes are completed and handed off. There is no reason to set this in non-test code.

getMaskPath

Added in 1.0.0-alpha02

public final Path getMaskPath()

Denote an area of this InProgressStrokesView where no ink should be visible. This is useful for UI elements that float on top of (in Z order) the drawing surface - without this, a user would be able to draw in-progress ("wet") strokes on top of those UI elements, but then when the stroke is finished, it will appear as a dry stroke underneath of the UI element. If this mask is set to the shape and position of the floating UI element, then the ink will never be rendered in that area, making it appear as if it's being drawn underneath the UI element.

This technique is most convincing when the UI element is opaque. Often there are parts of the UI element that are translucent, such as drop shadows, or anti-aliasing along the edges. The result will look a little different between wet and dry strokes for those cases, but it can be a worthwhile tradeoff compared to the alternative of drawing wet strokes on top of that UI element.

getMotionEventToViewTransform

Added in 1.0.0-alpha02

public final @NonNull Matrix getMotionEventToViewTransform()

The transform matrix to convert MotionEvent coordinates, as passed to startStroke, addToStroke, and finishStroke, into coordinates of this InProgressStrokesView for rendering. Defaults to the identity matrix, for the recommended case where InProgressStrokesView exactly overlays the android.view.View that has the touch listener from which MotionEvent instances are being forwarded.

getRendererFactory

Added in 1.0.0-alpha02

public final @NonNull Function0<@NonNull CanvasStrokeRenderer> getRendererFactory()

A function that creates a CanvasStrokeRenderer when invoked. The default implementation of this will automatically account for the Android OS version of the device. If you choose to replace the default with an alternate implementation, then you must set this variable before the first call to startStroke or eagerInit.

removeFinishedStrokes

Added in 1.0.0-alpha02

public final void removeFinishedStrokes(@NonNull Set<@NonNull InProgressStrokeId> strokeIds)

Stop this view from rendering the strokes with the given IDs.

This should be called in the same UI thread run loop (HWUI frame) as when the strokes start being rendered elsewhere in the view hierarchy. This means they are saved in a location where they will be picked up in a view's next call to onDraw, and that view's invalidate method has been called. If these two operations are not done within the same UI thread run loop (usually side by side - see example below), then there will be brief rendering errors - either a visual gap where the stroke is not drawn during a frame, or a double draw where the stroke is drawn twice and translucent strokes appear more opaque than they should.

removeFinishedStrokesListener

Added in 1.0.0-alpha02

public final void removeFinishedStrokesListener(
    @NonNull InProgressStrokesFinishedListener listener
)

Removes a listener that had previously been added with addFinishedStrokesListener.

setInProgressStrokeCounter

Added in 1.0.0-alpha02

public final void setInProgressStrokeCounter(
    @VisibleForTesting CountingIdlingResource inProgressStrokeCounter
)

Allows a test to easily wait until all in-progress strokes are completed and handed off. There is no reason to set this in non-test code.

setMaskPath

Added in 1.0.0-alpha02

public final void setMaskPath(Path maskPath)

setMotionEventToViewTransform

Added in 1.0.0-alpha02

public final void setMotionEventToViewTransform(
    @NonNull Matrix motionEventToViewTransform
)

setRendererFactory

public final void setRendererFactory(
    @NonNull Function0<@NonNull CanvasStrokeRenderer> rendererFactory
)

startStroke

Added in 1.0.0-alpha02

public final @NonNull InProgressStrokeId startStroke(
    @NonNull StrokeInput input,
    @NonNull Brush brush,
    @NonNull Matrix strokeToViewTransform
)

Start building a stroke with the provided input. This would typically be followed by many calls to addToStroke, and the sequence would end with a call to either finishStroke or cancelStroke.

In most circumstances, the startStroke overload that accepts a MotionEvent is more convenient. However, this overload using a StrokeInput is available for cases where the input data may not come directly from a MotionEvent, such as receiving events over a network connection.

If there is a way to request unbuffered dispatch from the source of the input data used here, equivalent to View.requestUnbufferedDispatch for unbuffered MotionEvent data, then be sure to request it for optimal performance.

Parameters
`@NonNull StrokeInput input`	The `StrokeInput` that started a stroke.
`@NonNull Brush brush`	Brush specification for the stroke being started. Note that if stroke coordinate units (the `StrokeInput.x` and `StrokeInput.y` fields of `input`) are scaled to be very different in size than screen pixels, then it is recommended to update the value of `Brush.epsilon` to reflect that.
`@NonNull Matrix strokeToViewTransform`	The `Matrix` that converts stroke coordinates as provided in `input` into the coordinate space of this `InProgressStrokesView` for rendering.

Returns
`@NonNull InProgressStrokeId`	The `InProgressStrokeId` of the stroke being built, later used to identify which stroke is being updated with `addToStroke` or ended with `finishStroke` or `cancelStroke`.

startStroke

Added in 1.0.0-alpha02

public final @NonNull InProgressStrokeId startStroke(
    @NonNull MotionEvent event,
    int pointerId,
    @NonNull Brush brush,
    @NonNull Matrix motionEventToWorldTransform,
    @NonNull Matrix strokeToWorldTransform
)

Start building a stroke using a particular pointer within a MotionEvent. This would typically be followed by many calls to addToStroke, and the sequence would end with a call to either finishStroke or cancelStroke.

In most circumstances, prefer to use this function over startStroke that accepts a StrokeInput.

For optimum performance, it is strongly recommended to call View.requestUnbufferedDispatch using event and the View that generated event alongside calling this function. When requested this way, unbuffered dispatch mode will automatically end when the gesture is complete.

Parameters
`@NonNull MotionEvent event`	The first `MotionEvent` as part of a Stroke's input data, typically one with a `MotionEvent.getActionMasked` value of `MotionEvent.ACTION_DOWN` or `MotionEvent.ACTION_POINTER_DOWN`, but not restricted to those action types.
`int pointerId`	The identifier of the pointer within `event` to be used for inking, as determined by `MotionEvent.getPointerId` and used as an input to `MotionEvent.findPointerIndex`. Note that this is the ID of the pointer, not its index.
`@NonNull Brush brush`	Brush specification for the stroke being started. Note that the overall scaling factor of `motionEventToWorldTransform` and `strokeToWorldTransform` combined should be related to the value of `Brush.epsilon` - in general, the larger the combined `motionEventToStrokeTransform` scaling factor is, the smaller on screen the stroke units are, so `Brush.epsilon` should be a larger quantity of stroke units to maintain a similar screen size.
`@NonNull Matrix motionEventToWorldTransform`	The matrix that transforms `event` coordinates into the client app's "world" coordinates, which typically is defined by how a client app's document is panned/zoomed/rotated. This defaults to the identity matrix, in which case the world coordinate space is the same as the `MotionEvent` coordinates, but the caller should pass in their own value reflecting a coordinate system that is independent of the device's pixel density (e.g. scaled by 1 / `android.util.DisplayMetrics.density`) and any pan/zoom/rotate gestures that have been applied to the "camera" which portrays the "world" on the device screen. This matrix must be invertible.
`@NonNull Matrix strokeToWorldTransform`	Allows an object-specific (stroke-specific) coordinate space to be defined in relation to the caller's "world" coordinate space. This defaults to the identity matrix, which is typical for many use cases at the time of stroke construction. In typical use cases, stroke coordinates and world coordinates may start to differ from one another after stroke creation as a particular stroke is manipulated within the world, e.g. it may be moved, scaled, or rotated relative to other content within an app's document. This matrix must be invertible.

Returns

Returns
`@NonNull InProgressStrokeId`	The `InProgressStrokeId` of the stroke being built, later used to identify which stroke is being updated with `addToStroke` or ended with `finishStroke` or `cancelStroke`. Callers that assume strokes map one-to-one with pointers in a gesture (as is typical) can skip storing this return value and use the overrides of `addToStroke`, `finishStroke`, and `cancelStroke` that just take a `MotionEvent` and a `pointerId`.

@NonNull InProgressStrokeId

The InProgressStrokeId of the stroke being built, later used to identify which stroke is being updated with addToStroke or ended with finishStroke or cancelStroke. Callers that assume strokes map one-to-one with pointers in a gesture (as is typical) can skip storing this return value and use the overrides of addToStroke, finishStroke, and cancelStroke that just take a MotionEvent and a pointerId.

Throws
`kotlin.IllegalArgumentException`	if `motionEventToWorldTransform` or `strokeToWorldTransform` is not invertible.

Protected methods

onAttachedToWindow

protected void onAttachedToWindow()