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ScrollView

public class ScrollView
extends FrameLayout

java.lang.Object
↳	android.view.View
	↳	android.view.ViewGroup
		↳	android.widget.FrameLayout
			↳	android.widget.ScrollView

A view group that allows the view hierarchy placed within it to be scrolled. Scroll view may have only one direct child placed within it. To add multiple views within the scroll view, make the direct child you add a view group, for example LinearLayout, and place additional views within that LinearLayout.

Scroll view supports vertical scrolling only. For horizontal scrolling, use HorizontalScrollView instead.

Never add a RecyclerView or ListView to a scroll view. Doing so results in poor user interface performance and a poor user experience.

For vertical scrolling, consider NestedScrollView instead of scroll view which offers greater user interface flexibility and support for the material design scrolling patterns.

Material Design offers guidelines on how the appearance of several UI components, including app bars and banners, should respond to gestures.

Summary

XML attributes
`android:fillViewport`	Defines whether the scrollview should stretch its content to fill the viewport.

Inherited XML attributes

From class android.widget.FrameLayout

`android:foregroundGravity`	Defines the gravity to apply to the foreground drawable.
`android:measureAllChildren`	Determines whether to measure all children or just those in the VISIBLE or INVISIBLE state when measuring.

From class android.view.ViewGroup

`android:addStatesFromChildren`	Sets whether this ViewGroup's drawable states also include its children's drawable states.
`android:alwaysDrawnWithCache`	Defines whether the ViewGroup should always draw its children using their drawing cache or not.
`android:animateLayoutChanges`	Defines whether changes in layout (caused by adding and removing items) should cause a LayoutTransition to run.
`android:animationCache`	Defines whether layout animations should create a drawing cache for their children.
`android:clipChildren`	Defines whether a child is limited to draw inside of its bounds or not.
`android:clipToPadding`	Defines whether the ViewGroup will clip its children and resize (but not clip) any EdgeEffect to its padding, if padding is not zero.
`android:descendantFocusability`	Defines the relationship between the ViewGroup and its descendants when looking for a View to take focus.
`android:layoutAnimation`	Defines the layout animation to use the first time the ViewGroup is laid out.
`android:layoutMode`	Defines the layout mode of this ViewGroup.
`android:persistentDrawingCache`	Defines the persistence of the drawing cache.
`android:splitMotionEvents`	Sets whether this ViewGroup should split MotionEvents to separate child views during touch event dispatch.

From class android.view.View

`android:accessibilityHeading`	Whether or not this view is a heading for accessibility purposes.
`android:accessibilityLiveRegion`	Indicates to accessibility services whether the user should be notified when this view changes.
`android:accessibilityPaneTitle`	The title this view should present to accessibility as a pane title.
`android:accessibilityTraversalAfter`	Sets the id of a view after which this one is visited in accessibility traversal.
`android:accessibilityTraversalBefore`	Sets the id of a view before which this one is visited in accessibility traversal.
`android:alpha`	alpha property of the view, as a value between 0 (completely transparent) and 1 (completely opaque).
`android:autofillHints`	Describes the content of a view so that a autofill service can fill in the appropriate data.
`android:autofilledHighlight`	Drawable to be drawn over the view to mark it as autofilled May be a reference to another resource, in the form "`@[+][package:]type/name`" or a theme attribute in the form "`?[package:]type/name`".
`android:background`	A drawable to use as the background.
`android:backgroundTint`	Tint to apply to the background.
`android:backgroundTintMode`	Blending mode used to apply the background tint.
`android:clickable`	Defines whether this view reacts to click events.
`android:contentDescription`	Defines text that briefly describes content of the view.
`android:contextClickable`	Defines whether this view reacts to context click events.
`android:defaultFocusHighlightEnabled`	Whether this View should use a default focus highlight when it gets focused but doesn't have `R.attr.state_focused` defined in its background.
`android:drawingCacheQuality`	Defines the quality of translucent drawing caches.
`android:duplicateParentState`	When this attribute is set to true, the view gets its drawable state (focused, pressed, etc.) from its direct parent rather than from itself.
`android:elevation`	base z depth of the view.
`android:fadeScrollbars`	Defines whether to fade out scrollbars when they are not in use.
`android:fadingEdgeLength`	Defines the length of the fading edges.
`android:filterTouchesWhenObscured`	Specifies whether to filter touches when the view's window is obscured by another visible window.
`android:fitsSystemWindows`	Boolean internal attribute to adjust view layout based on system windows such as the status bar.
`android:focusable`	Controls whether a view can take focus.
`android:focusableInTouchMode`	Boolean that controls whether a view can take focus while in touch mode.
`android:focusedByDefault`	Whether this view is a default-focus view.
`android:forceHasOverlappingRendering`	Whether this view has elements that may overlap when drawn.
`android:foreground`	Defines the drawable to draw over the content.
`android:foregroundGravity`	Defines the gravity to apply to the foreground drawable.
`android:foregroundTint`	Tint to apply to the foreground.
`android:foregroundTintMode`	Blending mode used to apply the foreground tint.
`android:hapticFeedbackEnabled`	Boolean that controls whether a view should have haptic feedback enabled for events such as long presses.
`android:id`	Supply an identifier name for this view, to later retrieve it with `View.findViewById()` or `Activity.findViewById()`.
`android:importantForAccessibility`	Describes whether or not this view is important for accessibility.
`android:importantForAutofill`	Hints the Android System whether the view node associated with this View should be included in a view structure used for autofill purposes.
`android:importantForContentCapture`	Hints the Android System whether the view node associated with this View should be use for content capture purposes.
`android:isScrollContainer`	Set this if the view will serve as a scrolling container, meaning that it can be resized to shrink its overall window so that there will be space for an input method.
`android:keepScreenOn`	Controls whether the view's window should keep the screen on while visible.
`android:keyboardNavigationCluster`	Whether this view is a root of a keyboard navigation cluster.
`android:layerType`	Specifies the type of layer backing this view.
`android:layoutDirection`	Defines the direction of layout drawing.
`android:longClickable`	Defines whether this view reacts to long click events.
`android:minHeight`	Defines the minimum height of the view.
`android:minWidth`	Defines the minimum width of the view.
`android:nextClusterForward`	Defines the next keyboard navigation cluster.
`android:nextFocusDown`	Defines the next view to give focus to when the next focus is `View.FOCUS_DOWN` If the reference refers to a view that does not exist or is part of a hierarchy that is invisible, a `RuntimeException` will result when the reference is accessed.
`android:nextFocusForward`	Defines the next view to give focus to when the next focus is `View.FOCUS_FORWARD` If the reference refers to a view that does not exist or is part of a hierarchy that is invisible, a `RuntimeException` will result when the reference is accessed.
`android:nextFocusLeft`	Defines the next view to give focus to when the next focus is `View.FOCUS_LEFT`.
`android:nextFocusRight`	Defines the next view to give focus to when the next focus is `View.FOCUS_RIGHT` If the reference refers to a view that does not exist or is part of a hierarchy that is invisible, a `RuntimeException` will result when the reference is accessed.
`android:nextFocusUp`	Defines the next view to give focus to when the next focus is `View.FOCUS_UP` If the reference refers to a view that does not exist or is part of a hierarchy that is invisible, a `RuntimeException` will result when the reference is accessed.
`android:onClick`	Name of the method in this View's context to invoke when the view is clicked.
`android:outlineAmbientShadowColor`	Sets the color of the ambient shadow that is drawn when the view has a positive Z or elevation value.
`android:outlineSpotShadowColor`	Sets the color of the spot shadow that is drawn when the view has a positive Z or elevation value.
`android:padding`	Sets the padding, in pixels, of all four edges.
`android:paddingBottom`	Sets the padding, in pixels, of the bottom edge; see `R.attr.padding`.
`android:paddingEnd`	Sets the padding, in pixels, of the end edge; see `R.attr.padding`.
`android:paddingHorizontal`	Sets the padding, in pixels, of the left and right edges; see `R.attr.padding`.
`android:paddingLeft`	Sets the padding, in pixels, of the left edge; see `R.attr.padding`.
`android:paddingRight`	Sets the padding, in pixels, of the right edge; see `R.attr.padding`.
`android:paddingStart`	Sets the padding, in pixels, of the start edge; see `R.attr.padding`.
`android:paddingTop`	Sets the padding, in pixels, of the top edge; see `R.attr.padding`.
`android:paddingVertical`	Sets the padding, in pixels, of the top and bottom edges; see `R.attr.padding`.
`android:requiresFadingEdge`	Defines which edges should be faded on scrolling.
`android:rotation`	rotation of the view, in degrees.
`android:rotationX`	rotation of the view around the x axis, in degrees.
`android:rotationY`	rotation of the view around the y axis, in degrees.
`android:saveEnabled`	If false, no state will be saved for this view when it is being frozen.
`android:scaleX`	scale of the view in the x direction.
`android:scaleY`	scale of the view in the y direction.
`android:screenReaderFocusable`	Whether this view should be treated as a focusable unit by screen reader accessibility tools.
`android:scrollIndicators`	Defines which scroll indicators should be displayed when the view can be scrolled.
`android:scrollX`	The initial horizontal scroll offset, in pixels.
`android:scrollY`	The initial vertical scroll offset, in pixels.
`android:scrollbarAlwaysDrawHorizontalTrack`	Defines whether the horizontal scrollbar track should always be drawn.
`android:scrollbarAlwaysDrawVerticalTrack`	Defines whether the vertical scrollbar track should always be drawn.
`android:scrollbarDefaultDelayBeforeFade`	Defines the delay in milliseconds that a scrollbar waits before fade out.
`android:scrollbarFadeDuration`	Defines the delay in milliseconds that a scrollbar takes to fade out.
`android:scrollbarSize`	Sets the width of vertical scrollbars and height of horizontal scrollbars.
`android:scrollbarStyle`	Controls the scrollbar style and position.
`android:scrollbarThumbHorizontal`	Defines the horizontal scrollbar thumb drawable.
`android:scrollbarThumbVertical`	Defines the vertical scrollbar thumb drawable.
`android:scrollbarTrackHorizontal`	Defines the horizontal scrollbar track drawable.
`android:scrollbarTrackVertical`	Defines the vertical scrollbar track drawable.
`android:scrollbars`	Defines which scrollbars should be displayed on scrolling or not.
`android:soundEffectsEnabled`	Boolean that controls whether a view should have sound effects enabled for events such as clicking and touching.
`android:stateListAnimator`	Sets the state-based animator for the View.
`android:tag`	Supply a tag for this view containing a String, to be retrieved later with `View.getTag()` or searched for with `View.findViewWithTag()`.
`android:textAlignment`	Defines the alignment of the text.
`android:textDirection`	Defines the direction of the text.
`android:theme`	Specifies a theme override for a view.
`android:tooltipText`	Defines text displayed in a small popup window on hover or long press.
`android:transformPivotX`	x location of the pivot point around which the view will rotate and scale.
`android:transformPivotY`	y location of the pivot point around which the view will rotate and scale.
`android:transitionName`	Names a View such that it can be identified for Transitions.
`android:translationX`	translation in x of the view.
`android:translationY`	translation in y of the view.
`android:translationZ`	translation in z of the view.
`android:visibility`	Controls the initial visibility of the view.

Inherited constants

From class android.view.ViewGroup

`int`	`CLIP_TO_PADDING_MASK` We clip to padding when FLAG_CLIP_TO_PADDING and FLAG_PADDING_NOT_NULL are set at the same time.
`int`	`FOCUS_AFTER_DESCENDANTS` This view will get focus only if none of its descendants want it.
`int`	`FOCUS_BEFORE_DESCENDANTS` This view will get focus before any of its descendants.
`int`	`FOCUS_BLOCK_DESCENDANTS` This view will block any of its descendants from getting focus, even if they are focusable.
`int`	`LAYOUT_MODE_CLIP_BOUNDS` This constant is a `layoutMode`.
`int`	`LAYOUT_MODE_OPTICAL_BOUNDS` This constant is a `layoutMode`.
`int`	`PERSISTENT_ALL_CACHES` This constant is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `View.setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `View.draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`int`	`PERSISTENT_ANIMATION_CACHE` This constant is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `View.setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `View.draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`int`	`PERSISTENT_NO_CACHE` This constant is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `View.setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `View.draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`int`	`PERSISTENT_SCROLLING_CACHE` This constant is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `View.setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `View.draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.

From class android.view.View

`int`	`ACCESSIBILITY_LIVE_REGION_ASSERTIVE` Live region mode specifying that accessibility services should interrupt ongoing speech to immediately announce changes to this view.
`int`	`ACCESSIBILITY_LIVE_REGION_NONE` Live region mode specifying that accessibility services should not automatically announce changes to this view.
`int`	`ACCESSIBILITY_LIVE_REGION_POLITE` Live region mode specifying that accessibility services should announce changes to this view.
`int`	`AUTOFILL_FLAG_INCLUDE_NOT_IMPORTANT_VIEWS` Flag requesting you to add views that are marked as not important for autofill (see `setImportantForAutofill(int)`) to a `ViewStructure`.
`String`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DATE` Hint indicating that this view can be autofilled with a credit card expiration date.
`String`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_DAY` Hint indicating that this view can be autofilled with a credit card expiration day.
`String`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_MONTH` Hint indicating that this view can be autofilled with a credit card expiration month.
`String`	`AUTOFILL_HINT_CREDIT_CARD_EXPIRATION_YEAR` Hint indicating that this view can be autofilled with a credit card expiration year.
`String`	`AUTOFILL_HINT_CREDIT_CARD_NUMBER` Hint indicating that this view can be autofilled with a credit card number.
`String`	`AUTOFILL_HINT_CREDIT_CARD_SECURITY_CODE` Hint indicating that this view can be autofilled with a credit card security code.
`String`	`AUTOFILL_HINT_EMAIL_ADDRESS` Hint indicating that this view can be autofilled with an email address.
`String`	`AUTOFILL_HINT_NAME` Hint indicating that this view can be autofilled with a user's real name.
`String`	`AUTOFILL_HINT_PASSWORD` Hint indicating that this view can be autofilled with a password.
`String`	`AUTOFILL_HINT_PHONE` Hint indicating that this view can be autofilled with a phone number.
`String`	`AUTOFILL_HINT_POSTAL_ADDRESS` Hint indicating that this view can be autofilled with a postal address.
`String`	`AUTOFILL_HINT_POSTAL_CODE` Hint indicating that this view can be autofilled with a postal code.
`String`	`AUTOFILL_HINT_USERNAME` Hint indicating that this view can be autofilled with a username.
`int`	`AUTOFILL_TYPE_DATE` Autofill type for a field that contains a date, which is represented by a long representing the number of milliseconds since the standard base time known as "the epoch", namely January 1, 1970, 00:00:00 GMT (see `Date.getTime()`.
`int`	`AUTOFILL_TYPE_LIST` Autofill type for a selection list field, which is filled by an `int` representing the element index inside the list (starting at `0`).
`int`	`AUTOFILL_TYPE_NONE` Autofill type for views that cannot be autofilled.
`int`	`AUTOFILL_TYPE_TEXT` Autofill type for a text field, which is filled by a `CharSequence`.
`int`	`AUTOFILL_TYPE_TOGGLE` Autofill type for a togglable field, which is filled by a `boolean`.
`int`	`DRAG_FLAG_GLOBAL` Flag indicating that a drag can cross window boundaries.
`int`	`DRAG_FLAG_GLOBAL_PERSISTABLE_URI_PERMISSION` When this flag is used with `DRAG_FLAG_GLOBAL_URI_READ` and/or `DRAG_FLAG_GLOBAL_URI_WRITE`, the URI permission grant can be persisted across device reboots until explicitly revoked with `Context.revokeUriPermission(Uri, int)` Context.revokeUriPermission}.
`int`	`DRAG_FLAG_GLOBAL_PREFIX_URI_PERMISSION` When this flag is used with `DRAG_FLAG_GLOBAL_URI_READ` and/or `DRAG_FLAG_GLOBAL_URI_WRITE`, the URI permission grant applies to any URI that is a prefix match against the original granted URI.
`int`	`DRAG_FLAG_GLOBAL_URI_READ` When this flag is used with `DRAG_FLAG_GLOBAL`, the drag recipient will be able to request read access to the content URI(s) contained in the `ClipData` object.
`int`	`DRAG_FLAG_GLOBAL_URI_WRITE` When this flag is used with `DRAG_FLAG_GLOBAL`, the drag recipient will be able to request write access to the content URI(s) contained in the `ClipData` object.
`int`	`DRAG_FLAG_OPAQUE` Flag indicating that the drag shadow will be opaque.
`int`	`DRAWING_CACHE_QUALITY_AUTO` This constant is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`int`	`DRAWING_CACHE_QUALITY_HIGH` This constant is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`int`	`DRAWING_CACHE_QUALITY_LOW` This constant is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`int`	`FIND_VIEWS_WITH_CONTENT_DESCRIPTION` Find find views that contain the specified content description.
`int`	`FIND_VIEWS_WITH_TEXT` Find views that render the specified text.
`int`	`FOCUSABLE` This view wants keystrokes.
`int`	`FOCUSABLES_ALL` View flag indicating whether `addFocusables(java.util.ArrayList, int, int)` should add all focusable Views regardless if they are focusable in touch mode.
`int`	`FOCUSABLES_TOUCH_MODE` View flag indicating whether `addFocusables(java.util.ArrayList, int, int)` should add only Views focusable in touch mode.
`int`	`FOCUSABLE_AUTO` This view determines focusability automatically.
`int`	`FOCUS_BACKWARD` Use with `focusSearch(int)`.
`int`	`FOCUS_DOWN` Use with `focusSearch(int)`.
`int`	`FOCUS_FORWARD` Use with `focusSearch(int)`.
`int`	`FOCUS_LEFT` Use with `focusSearch(int)`.
`int`	`FOCUS_RIGHT` Use with `focusSearch(int)`.
`int`	`FOCUS_UP` Use with `focusSearch(int)`.
`int`	`GONE` This view is invisible, and it doesn't take any space for layout purposes.
`int`	`HAPTIC_FEEDBACK_ENABLED` View flag indicating whether this view should have haptic feedback enabled for events such as long presses.
`int`	`IMPORTANT_FOR_ACCESSIBILITY_AUTO` Automatically determine whether a view is important for accessibility.
`int`	`IMPORTANT_FOR_ACCESSIBILITY_NO` The view is not important for accessibility.
`int`	`IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS` The view is not important for accessibility, nor are any of its descendant views.
`int`	`IMPORTANT_FOR_ACCESSIBILITY_YES` The view is important for accessibility.
`int`	`IMPORTANT_FOR_AUTOFILL_AUTO` Automatically determine whether a view is important for autofill.
`int`	`IMPORTANT_FOR_AUTOFILL_NO` The view is not important for autofill, but its children (if any) will be traversed.
`int`	`IMPORTANT_FOR_AUTOFILL_NO_EXCLUDE_DESCENDANTS` The view is not important for autofill, and its children (if any) will not be traversed.
`int`	`IMPORTANT_FOR_AUTOFILL_YES` The view is important for autofill, and its children (if any) will be traversed.
`int`	`IMPORTANT_FOR_AUTOFILL_YES_EXCLUDE_DESCENDANTS` The view is important for autofill, but its children (if any) will not be traversed.
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_AUTO` Automatically determine whether a view is important for content capture.
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_NO` The view is not important for content capture, but its children (if any) will be traversed.
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_NO_EXCLUDE_DESCENDANTS` The view is not important for content capture, and its children (if any) will not be traversed.
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_YES` The view is important for content capture, and its children (if any) will be traversed.
`int`	`IMPORTANT_FOR_CONTENT_CAPTURE_YES_EXCLUDE_DESCENDANTS` The view is important for content capture, but its children (if any) will not be traversed.
`int`	`INVISIBLE` This view is invisible, but it still takes up space for layout purposes.
`int`	`KEEP_SCREEN_ON` View flag indicating that the screen should remain on while the window containing this view is visible to the user.
`int`	`LAYER_TYPE_HARDWARE` Indicates that the view has a hardware layer.
`int`	`LAYER_TYPE_NONE` Indicates that the view does not have a layer.
`int`	`LAYER_TYPE_SOFTWARE` Indicates that the view has a software layer.
`int`	`LAYOUT_DIRECTION_INHERIT` Horizontal layout direction of this view is inherited from its parent.
`int`	`LAYOUT_DIRECTION_LOCALE` Horizontal layout direction of this view is from deduced from the default language script for the locale.
`int`	`LAYOUT_DIRECTION_LTR` Horizontal layout direction of this view is from Left to Right.
`int`	`LAYOUT_DIRECTION_RTL` Horizontal layout direction of this view is from Right to Left.
`int`	`MEASURED_HEIGHT_STATE_SHIFT` Bit shift of `MEASURED_STATE_MASK` to get to the height bits for functions that combine both width and height into a single int, such as `getMeasuredState()` and the childState argument of `resolveSizeAndState(int, int, int)`.
`int`	`MEASURED_SIZE_MASK` Bits of `getMeasuredWidthAndState()` and `getMeasuredWidthAndState()` that provide the actual measured size.
`int`	`MEASURED_STATE_MASK` Bits of `getMeasuredWidthAndState()` and `getMeasuredWidthAndState()` that provide the additional state bits.
`int`	`MEASURED_STATE_TOO_SMALL` Bit of `getMeasuredWidthAndState()` and `getMeasuredWidthAndState()` that indicates the measured size is smaller that the space the view would like to have.
`int`	`NOT_FOCUSABLE` This view does not want keystrokes.
`int`	`NO_ID` Used to mark a View that has no ID.
`int`	`OVER_SCROLL_ALWAYS` Always allow a user to over-scroll this view, provided it is a view that can scroll.
`int`	`OVER_SCROLL_IF_CONTENT_SCROLLS` Allow a user to over-scroll this view only if the content is large enough to meaningfully scroll, provided it is a view that can scroll.
`int`	`OVER_SCROLL_NEVER` Never allow a user to over-scroll this view.
`int`	`SCREEN_STATE_OFF` Indicates that the screen has changed state and is now off.
`int`	`SCREEN_STATE_ON` Indicates that the screen has changed state and is now on.
`int`	`SCROLLBARS_INSIDE_INSET` The scrollbar style to display the scrollbars inside the padded area, increasing the padding of the view.
`int`	`SCROLLBARS_INSIDE_OVERLAY` The scrollbar style to display the scrollbars inside the content area, without increasing the padding.
`int`	`SCROLLBARS_OUTSIDE_INSET` The scrollbar style to display the scrollbars at the edge of the view, increasing the padding of the view.
`int`	`SCROLLBARS_OUTSIDE_OVERLAY` The scrollbar style to display the scrollbars at the edge of the view, without increasing the padding.
`int`	`SCROLLBAR_POSITION_DEFAULT` Position the scroll bar at the default position as determined by the system.
`int`	`SCROLLBAR_POSITION_LEFT` Position the scroll bar along the left edge.
`int`	`SCROLLBAR_POSITION_RIGHT` Position the scroll bar along the right edge.
`int`	`SCROLL_AXIS_HORIZONTAL` Indicates scrolling along the horizontal axis.
`int`	`SCROLL_AXIS_NONE` Indicates no axis of view scrolling.
`int`	`SCROLL_AXIS_VERTICAL` Indicates scrolling along the vertical axis.
`int`	`SCROLL_INDICATOR_BOTTOM` Scroll indicator direction for the bottom edge of the view.
`int`	`SCROLL_INDICATOR_END` Scroll indicator direction for the ending edge of the view.
`int`	`SCROLL_INDICATOR_LEFT` Scroll indicator direction for the left edge of the view.
`int`	`SCROLL_INDICATOR_RIGHT` Scroll indicator direction for the right edge of the view.
`int`	`SCROLL_INDICATOR_START` Scroll indicator direction for the starting edge of the view.
`int`	`SCROLL_INDICATOR_TOP` Scroll indicator direction for the top edge of the view.
`int`	`SOUND_EFFECTS_ENABLED` View flag indicating whether this view should have sound effects enabled for events such as clicking and touching.
`int`	`STATUS_BAR_HIDDEN` This constant is deprecated. Use `SYSTEM_UI_FLAG_LOW_PROFILE` instead.
`int`	`STATUS_BAR_VISIBLE` This constant is deprecated. Use `SYSTEM_UI_FLAG_VISIBLE` instead.
`int`	`SYSTEM_UI_FLAG_FULLSCREEN` This constant is deprecated. Use `WindowInsetsController#hide(int)` with `Type#statusBars()` instead.
`int`	`SYSTEM_UI_FLAG_HIDE_NAVIGATION` This constant is deprecated. Use `WindowInsetsController#hide(int)` with `Type#navigationBars()` instead.
`int`	`SYSTEM_UI_FLAG_IMMERSIVE` This constant is deprecated. Use `WindowInsetsController#BEHAVIOR_SHOW_BARS_BY_SWIPE` instead.
`int`	`SYSTEM_UI_FLAG_IMMERSIVE_STICKY` This constant is deprecated. Use `WindowInsetsController#BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE` instead.
`int`	`SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN` This constant is deprecated. For floating windows, use `LayoutParams#setFitInsetsTypes(int)` with `Type#statusBars()` ()}. For non-floating windows that fill the screen, call `Window#setDecorFitsSystemWindows(boolean)` with `false`.
`int`	`SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION` This constant is deprecated. For floating windows, use `LayoutParams#setFitInsetsTypes(int)` with `Type#navigationBars()`. For non-floating windows that fill the screen, call `Window#setDecorFitsSystemWindows(boolean)` with `false`.
`int`	`SYSTEM_UI_FLAG_LAYOUT_STABLE` This constant is deprecated. Use `WindowInsets#getInsetsIgnoringVisibility(int)` instead to retrieve insets that don't change when system bars change visibility state.
`int`	`SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR` This constant is deprecated. Use `WindowInsetsController#APPEARANCE_LIGHT_NAVIGATION_BARS` instead.
`int`	`SYSTEM_UI_FLAG_LIGHT_STATUS_BAR` This constant is deprecated. Use `WindowInsetsController#APPEARANCE_LIGHT_STATUS_BARS` instead.
`int`	`SYSTEM_UI_FLAG_LOW_PROFILE` This constant is deprecated. Low profile mode is deprecated. Hide the system bars instead if the application needs to be in a unobtrusive mode. Use `WindowInsetsController#hide(int)` with `Type#systemBars()`.
`int`	`SYSTEM_UI_FLAG_VISIBLE` This constant is deprecated. SystemUiVisibility flags are deprecated. Use `WindowInsetsController` instead.
`int`	`SYSTEM_UI_LAYOUT_FLAGS` This constant is deprecated. System UI layout flags are deprecated.
`int`	`TEXT_ALIGNMENT_CENTER` Center the paragraph, e.g. ALIGN_CENTER.
`int`	`TEXT_ALIGNMENT_GRAVITY` Default for the root view.
`int`	`TEXT_ALIGNMENT_INHERIT` Default text alignment.
`int`	`TEXT_ALIGNMENT_TEXT_END` Align to the end of the paragraph, e.g. ALIGN_OPPOSITE.
`int`	`TEXT_ALIGNMENT_TEXT_START` Align to the start of the paragraph, e.g. ALIGN_NORMAL.
`int`	`TEXT_ALIGNMENT_VIEW_END` Align to the end of the view, which is ALIGN_RIGHT if the view's resolved layoutDirection is LTR, and ALIGN_LEFT otherwise.
`int`	`TEXT_ALIGNMENT_VIEW_START` Align to the start of the view, which is ALIGN_LEFT if the view's resolved layoutDirection is LTR, and ALIGN_RIGHT otherwise.
`int`	`TEXT_DIRECTION_ANY_RTL` Text direction is using "any-RTL" algorithm.
`int`	`TEXT_DIRECTION_FIRST_STRONG` Text direction is using "first strong algorithm".
`int`	`TEXT_DIRECTION_FIRST_STRONG_LTR` Text direction is using "first strong algorithm".
`int`	`TEXT_DIRECTION_FIRST_STRONG_RTL` Text direction is using "first strong algorithm".
`int`	`TEXT_DIRECTION_INHERIT` Text direction is inherited through `ViewGroup`
`int`	`TEXT_DIRECTION_LOCALE` Text direction is coming from the system Locale.
`int`	`TEXT_DIRECTION_LTR` Text direction is forced to LTR.
`int`	`TEXT_DIRECTION_RTL` Text direction is forced to RTL.
`String`	`VIEW_LOG_TAG` The logging tag used by this class with android.util.Log.
`int`	`VISIBLE` This view is visible.

Inherited fields

From class android.view.View

`public static final Property<View, Float>`	`ALPHA` A Property wrapper around the `alpha` functionality handled by the `View#setAlpha(float)` and `View#getAlpha()` methods.
`protected static final int[]`	`EMPTY_STATE_SET` Indicates the view has no states set.
`protected static final int[]`	`ENABLED_FOCUSED_SELECTED_STATE_SET` Indicates the view is enabled, focused and selected.
`protected static final int[]`	`ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET` Indicates the view is enabled, focused, selected and its window has the focus.
`protected static final int[]`	`ENABLED_FOCUSED_STATE_SET` Indicates the view is enabled and has the focus.
`protected static final int[]`	`ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET` Indicates the view is enabled, focused and its window has the focus.
`protected static final int[]`	`ENABLED_SELECTED_STATE_SET` Indicates the view is enabled and selected.
`protected static final int[]`	`ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET` Indicates the view is enabled, selected and its window has the focus.
`protected static final int[]`	`ENABLED_STATE_SET` Indicates the view is enabled.
`protected static final int[]`	`ENABLED_WINDOW_FOCUSED_STATE_SET` Indicates the view is enabled and that its window has focus.
`protected static final int[]`	`FOCUSED_SELECTED_STATE_SET` Indicates the view is focused and selected.
`protected static final int[]`	`FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET` Indicates the view is focused, selected and its window has the focus.
`protected static final int[]`	`FOCUSED_STATE_SET` Indicates the view is focused.
`protected static final int[]`	`FOCUSED_WINDOW_FOCUSED_STATE_SET` Indicates the view has the focus and that its window has the focus.
`protected static final int[]`	`PRESSED_ENABLED_FOCUSED_SELECTED_STATE_SET` Indicates the view is pressed, enabled, focused and selected.
`protected static final int[]`	`PRESSED_ENABLED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET` Indicates the view is pressed, enabled, focused, selected and its window has the focus.
`protected static final int[]`	`PRESSED_ENABLED_FOCUSED_STATE_SET` Indicates the view is pressed, enabled and focused.
`protected static final int[]`	`PRESSED_ENABLED_FOCUSED_WINDOW_FOCUSED_STATE_SET` Indicates the view is pressed, enabled, focused and its window has the focus.
`protected static final int[]`	`PRESSED_ENABLED_SELECTED_STATE_SET` Indicates the view is pressed, enabled and selected.
`protected static final int[]`	`PRESSED_ENABLED_SELECTED_WINDOW_FOCUSED_STATE_SET` Indicates the view is pressed, enabled, selected and its window has the focus.
`protected static final int[]`	`PRESSED_ENABLED_STATE_SET` Indicates the view is pressed and enabled.
`protected static final int[]`	`PRESSED_ENABLED_WINDOW_FOCUSED_STATE_SET` Indicates the view is pressed, enabled and its window has the focus.
`protected static final int[]`	`PRESSED_FOCUSED_SELECTED_STATE_SET` Indicates the view is pressed, focused and selected.
`protected static final int[]`	`PRESSED_FOCUSED_SELECTED_WINDOW_FOCUSED_STATE_SET` Indicates the view is pressed, focused, selected and its window has the focus.
`protected static final int[]`	`PRESSED_FOCUSED_STATE_SET` Indicates the view is pressed and focused.
`protected static final int[]`	`PRESSED_FOCUSED_WINDOW_FOCUSED_STATE_SET` Indicates the view is pressed, focused and its window has the focus.
`protected static final int[]`	`PRESSED_SELECTED_STATE_SET` Indicates the view is pressed and selected.
`protected static final int[]`	`PRESSED_SELECTED_WINDOW_FOCUSED_STATE_SET` Indicates the view is pressed, selected and its window has the focus.
`protected static final int[]`	`PRESSED_STATE_SET` Indicates the view is pressed.
`protected static final int[]`	`PRESSED_WINDOW_FOCUSED_STATE_SET` Indicates the view is pressed and its window has the focus.
`public static final Property<View, Float>`	`ROTATION` A Property wrapper around the `rotation` functionality handled by the `View#setRotation(float)` and `View#getRotation()` methods.
`public static final Property<View, Float>`	`ROTATION_X` A Property wrapper around the `rotationX` functionality handled by the `View#setRotationX(float)` and `View#getRotationX()` methods.
`public static final Property<View, Float>`	`ROTATION_Y` A Property wrapper around the `rotationY` functionality handled by the `View#setRotationY(float)` and `View#getRotationY()` methods.
`public static final Property<View, Float>`	`SCALE_X` A Property wrapper around the `scaleX` functionality handled by the `View#setScaleX(float)` and `View#getScaleX()` methods.
`public static final Property<View, Float>`	`SCALE_Y` A Property wrapper around the `scaleY` functionality handled by the `View#setScaleY(float)` and `View#getScaleY()` methods.
`protected static final int[]`	`SELECTED_STATE_SET` Indicates the view is selected.
`protected static final int[]`	`SELECTED_WINDOW_FOCUSED_STATE_SET` Indicates the view is selected and that its window has the focus.
`public static final Property<View, Float>`	`TRANSLATION_X` A Property wrapper around the `translationX` functionality handled by the `View#setTranslationX(float)` and `View#getTranslationX()` methods.
`public static final Property<View, Float>`	`TRANSLATION_Y` A Property wrapper around the `translationY` functionality handled by the `View#setTranslationY(float)` and `View#getTranslationY()` methods.
`public static final Property<View, Float>`	`TRANSLATION_Z` A Property wrapper around the `translationZ` functionality handled by the `View#setTranslationZ(float)` and `View#getTranslationZ()` methods.
`protected static final int[]`	`WINDOW_FOCUSED_STATE_SET` Indicates the view's window has focus.
`public static final Property<View, Float>`	`X` A Property wrapper around the `x` functionality handled by the `View#setX(float)` and `View#getX()` methods.
`public static final Property<View, Float>`	`Y` A Property wrapper around the `y` functionality handled by the `View#setY(float)` and `View#getY()` methods.
`public static final Property<View, Float>`	`Z` A Property wrapper around the `z` functionality handled by the `View#setZ(float)` and `View#getZ()` methods.

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

Public methods
`void`	`addView(View child, int index)` Adds a child view.
`void`	`addView(View child, ViewGroup.LayoutParams params)` Adds a child view with the specified layout parameters.
`void`	`addView(View child, int index, ViewGroup.LayoutParams params)` Adds a child view with the specified layout parameters.
`void`	`addView(View child)` Adds a child view.
`boolean`	`arrowScroll(int direction)` Handle scrolling in response to an up or down arrow click.
`void`	`computeScroll()` Called by a parent to request that a child update its values for mScrollX and mScrollY if necessary.
`boolean`	`dispatchKeyEvent(KeyEvent event)` Dispatch a key event to the next view on the focus path.
`void`	`draw(Canvas canvas)` Manually render this view (and all of its children) to the given Canvas.
`boolean`	`executeKeyEvent(KeyEvent event)` You can call this function yourself to have the scroll view perform scrolling from a key event, just as if the event had been dispatched to it by the view hierarchy.
`void`	`fling(int velocityY)` Fling the scroll view
`boolean`	`fullScroll(int direction)` Handles scrolling in response to a "home/end" shortcut press.
`CharSequence`	`getAccessibilityClassName()` Return the class name of this object to be used for accessibility purposes.
`int`	`getBottomEdgeEffectColor()` Returns the bottom edge effect color.
`int`	`getMaxScrollAmount()`
`int`	`getTopEdgeEffectColor()` Returns the top edge effect color.
`boolean`	`isFillViewport()` Indicates whether this ScrollView's content is stretched to fill the viewport.
`boolean`	`isSmoothScrollingEnabled()`
`boolean`	`onGenericMotionEvent(MotionEvent event)` Implement this method to handle generic motion events.
`boolean`	`onInterceptTouchEvent(MotionEvent ev)` Implement this method to intercept all touch screen motion events.
`boolean`	`onNestedFling(View target, float velocityX, float velocityY, boolean consumed)` Request a fling from a nested scroll.
`void`	`onNestedScroll(View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed)` React to a nested scroll in progress.
`void`	`onNestedScrollAccepted(View child, View target, int axes)` React to the successful claiming of a nested scroll operation.
`boolean`	`onStartNestedScroll(View child, View target, int nestedScrollAxes)` React to a descendant view initiating a nestable scroll operation, claiming the nested scroll operation if appropriate.
`void`	`onStopNestedScroll(View target)` React to a nested scroll operation ending.
`boolean`	`onTouchEvent(MotionEvent ev)` Implement this method to handle touch screen motion events.
`boolean`	`pageScroll(int direction)` Handles scrolling in response to a "page up/down" shortcut press.
`void`	`requestChildFocus(View child, View focused)` Called when a child of this parent wants focus
`boolean`	`requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate)` Called when a child of this group wants a particular rectangle to be positioned onto the screen.
`void`	`requestDisallowInterceptTouchEvent(boolean disallowIntercept)` Called when a child does not want this parent and its ancestors to intercept touch events with `ViewGroup#onInterceptTouchEvent(MotionEvent)`.
`void`	`requestLayout()` Call this when something has changed which has invalidated the layout of this view.
`void`	`scrollTo(int x, int y)` Set the scrolled position of your view. This version also clamps the scrolling to the bounds of our child.
`void`	`scrollToDescendant(View child)` Scrolls the view to the given child.
`void`	`setBottomEdgeEffectColor(int color)` Sets the bottom edge effect color.
`void`	`setEdgeEffectColor(int color)` Sets the edge effect color for both top and bottom edge effects.
`void`	`setFillViewport(boolean fillViewport)` Indicates this ScrollView whether it should stretch its content height to fill the viewport or not.
`void`	`setSmoothScrollingEnabled(boolean smoothScrollingEnabled)` Set whether arrow scrolling will animate its transition.
`void`	`setTopEdgeEffectColor(int color)` Sets the top edge effect color.
`boolean`	`shouldDelayChildPressedState()` Return true if the pressed state should be delayed for children or descendants of this ViewGroup.
`final void`	`smoothScrollBy(int dx, int dy)` Like `View#scrollBy`, but scroll smoothly instead of immediately.
`final void`	`smoothScrollTo(int x, int y)` Like `scrollTo(int, int)`, but scroll smoothly instead of immediately.

Protected methods
`int`	`computeScrollDeltaToGetChildRectOnScreen(Rect rect)` Compute the amount to scroll in the Y direction in order to get a rectangle completely on the screen (or, if taller than the screen, at least the first screen size chunk of it).
`int`	`computeVerticalScrollOffset()` Compute the vertical offset of the vertical scrollbar's thumb within the horizontal range.
`int`	`computeVerticalScrollRange()` The scroll range of a scroll view is the overall height of all of its children.
`float`	`getBottomFadingEdgeStrength()` Returns the strength, or intensity, of the bottom faded edge.
`float`	`getTopFadingEdgeStrength()` Returns the strength, or intensity, of the top faded edge.
`void`	`measureChild(View child, int parentWidthMeasureSpec, int parentHeightMeasureSpec)` Ask one of the children of this view to measure itself, taking into account both the MeasureSpec requirements for this view and its padding.
`void`	`measureChildWithMargins(View child, int parentWidthMeasureSpec, int widthUsed, int parentHeightMeasureSpec, int heightUsed)` Ask one of the children of this view to measure itself, taking into account both the MeasureSpec requirements for this view and its padding and margins.
`void`	`onDetachedFromWindow()` This is called when the view is detached from a window.
`void`	`onLayout(boolean changed, int l, int t, int r, int b)` Called from layout when this view should assign a size and position to each of its children.
`void`	`onMeasure(int widthMeasureSpec, int heightMeasureSpec)` Measure the view and its content to determine the measured width and the measured height.
`void`	`onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY)` Called by `overScrollBy(int, int, int, int, int, int, int, int, boolean)` to respond to the results of an over-scroll operation.
`boolean`	`onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect)` When looking for focus in children of a scroll view, need to be a little more careful not to give focus to something that is scrolled off screen.
`void`	`onRestoreInstanceState(Parcelable state)` Hook allowing a view to re-apply a representation of its internal state that had previously been generated by `onSaveInstanceState()`.
`Parcelable`	`onSaveInstanceState()` Hook allowing a view to generate a representation of its internal state that can later be used to create a new instance with that same state.
`void`	`onSizeChanged(int w, int h, int oldw, int oldh)` This is called during layout when the size of this view has changed.

Inherited methods

From class


        
          android.widget.FrameLayout

`boolean`	`checkLayoutParams(ViewGroup.LayoutParams p)`
`FrameLayout.LayoutParams`	`generateDefaultLayoutParams()` Returns a set of layout parameters with a width of `ViewGroup.LayoutParams.MATCH_PARENT`, and a height of `ViewGroup.LayoutParams.MATCH_PARENT`.
`FrameLayout.LayoutParams`	`generateLayoutParams(AttributeSet attrs)` Returns a new set of layout parameters based on the supplied attributes set.
`ViewGroup.LayoutParams`	`generateLayoutParams(ViewGroup.LayoutParams lp)` Returns a safe set of layout parameters based on the supplied layout params.
`CharSequence`	`getAccessibilityClassName()` Return the class name of this object to be used for accessibility purposes.
`boolean`	`getConsiderGoneChildrenWhenMeasuring()` This method is deprecated. This method is deprecated in favor of `getMeasureAllChildren()`, which was renamed for consistency with `setMeasureAllChildren()`.
`boolean`	`getMeasureAllChildren()` Determines whether all children, or just those in the VISIBLE or INVISIBLE state, are considered when measuring.
`void`	`onLayout(boolean changed, int left, int top, int right, int bottom)` Called from layout when this view should assign a size and position to each of its children.
`void`	`onMeasure(int widthMeasureSpec, int heightMeasureSpec)` Measure the view and its content to determine the measured width and the measured height.
`void`	`setForegroundGravity(int foregroundGravity)` Describes how the foreground is positioned.
`void`	`setMeasureAllChildren(boolean measureAll)` Sets whether to consider all children, or just those in the VISIBLE or INVISIBLE state, when measuring.
`boolean`	`shouldDelayChildPressedState()` Return true if the pressed state should be delayed for children or descendants of this ViewGroup.

From class


        
          android.view.ViewGroup

`void`	`addChildrenForAccessibility(ArrayList<View> outChildren)` Adds the children of this View relevant for accessibility to the given list as output.
`void`	`addExtraDataToAccessibilityNodeInfo(AccessibilityNodeInfo info, String extraDataKey, Bundle arguments)` Adds extra data to an `AccessibilityNodeInfo` based on an explicit request for the additional data.
`void`	`addFocusables(ArrayList<View> views, int direction, int focusableMode)` Adds any focusable views that are descendants of this view (possibly including this view if it is focusable itself) to views.
`void`	`addKeyboardNavigationClusters(Collection<View> views, int direction)` Adds any keyboard navigation cluster roots that are descendants of this view (possibly including this view if it is a cluster root itself) to views.
`boolean`	`addStatesFromChildren()` Returns whether this ViewGroup's drawable states also include its children's drawable states.
`void`	`addTouchables(ArrayList<View> views)` Add any touchable views that are descendants of this view (possibly including this view if it is touchable itself) to views.
`void`	`addView(View child, ViewGroup.LayoutParams params)` Adds a child view with the specified layout parameters.
`void`	`addView(View child, int index)` Adds a child view.
`void`	`addView(View child, int index, ViewGroup.LayoutParams params)` Adds a child view with the specified layout parameters.
`void`	`addView(View child)` Adds a child view.
`void`	`addView(View child, int width, int height)` Adds a child view with this ViewGroup's default layout parameters and the specified width and height.
`boolean`	`addViewInLayout(View child, int index, ViewGroup.LayoutParams params, boolean preventRequestLayout)` Adds a view during layout.
`boolean`	`addViewInLayout(View child, int index, ViewGroup.LayoutParams params)` Adds a view during layout.
`void`	`attachLayoutAnimationParameters(View child, ViewGroup.LayoutParams params, int index, int count)` Subclasses should override this method to set layout animation parameters on the supplied child.
`void`	`attachViewToParent(View child, int index, ViewGroup.LayoutParams params)` Attaches a view to this view group.
`void`	`bringChildToFront(View child)` Change the z order of the child so it's on top of all other children.
`boolean`	`canAnimate()` Indicates whether the view group has the ability to animate its children after the first layout.
`boolean`	`checkLayoutParams(ViewGroup.LayoutParams p)`
`void`	`childDrawableStateChanged(View child)` If `addStatesFromChildren()` is true, refreshes this group's drawable state (to include the states from its children).
`void`	`childHasTransientStateChanged(View child, boolean childHasTransientState)` Called when a child view has changed whether or not it is tracking transient state.
`void`	`cleanupLayoutState(View child)` Prevents the specified child to be laid out during the next layout pass.
`void`	`clearChildFocus(View child)` Called when a child of this parent is giving up focus
`void`	`clearDisappearingChildren()` Removes any pending animations for views that have been removed.
`void`	`clearFocus()` Called when this view wants to give up focus.
`void`	`debug(int depth)`
`void`	`detachAllViewsFromParent()` Detaches all views from the parent.
`void`	`detachViewFromParent(int index)` Detaches a view from its parent.
`void`	`detachViewFromParent(View child)` Detaches a view from its parent.
`void`	`detachViewsFromParent(int start, int count)` Detaches a range of views from their parents.
`WindowInsets`	`dispatchApplyWindowInsets(WindowInsets insets)` Request to apply the given window insets to this view or another view in its subtree.
`boolean`	`dispatchCapturedPointerEvent(MotionEvent event)` Pass a captured pointer event down to the focused view.
`void`	`dispatchConfigurationChanged(Configuration newConfig)` Dispatch a notification about a resource configuration change down the view hierarchy.
`void`	`dispatchDisplayHint(int hint)` Dispatch a hint about whether this view is displayed.
`boolean`	`dispatchDragEvent(DragEvent event)` Detects if this View is enabled and has a drag event listener.
`void`	`dispatchDraw(Canvas canvas)` Called by draw to draw the child views.
`void`	`dispatchDrawableHotspotChanged(float x, float y)` Dispatches drawable hotspot changes to child views that meet at least one of the following criteria: Returns `false` from both `View#isClickable()` and `View#isLongClickable()` Requests duplication of parent state via `View#setDuplicateParentStateEnabled(boolean)`
`void`	`dispatchFreezeSelfOnly(SparseArray<Parcelable> container)` Perform dispatching of a `View.saveHierarchyState(android.util.SparseArray)` freeze()} to only this view, not to its children.
`boolean`	`dispatchGenericFocusedEvent(MotionEvent event)` Dispatch a generic motion event to the currently focused view.
`boolean`	`dispatchGenericPointerEvent(MotionEvent event)` Dispatch a generic motion event to the view under the first pointer.
`boolean`	`dispatchHoverEvent(MotionEvent event)` Dispatch a hover event.
`boolean`	`dispatchKeyEvent(KeyEvent event)` Dispatch a key event to the next view on the focus path.
`boolean`	`dispatchKeyEventPreIme(KeyEvent event)` Dispatch a key event before it is processed by any input method associated with the view hierarchy.
`boolean`	`dispatchKeyShortcutEvent(KeyEvent event)` Dispatches a key shortcut event.
`void`	`dispatchPointerCaptureChanged(boolean hasCapture)`
`void`	`dispatchProvideAutofillStructure(ViewStructure structure, int flags)` Dispatches creation of a `ViewStructure`s for autofill purposes down the hierarchy, when an Assist structure is being created as part of an autofill request. This implementation adds in all child views of the view group, in addition to calling the default `View` implementation.
`void`	`dispatchProvideStructure(ViewStructure structure)` Dispatch creation of `ViewStructure` down the hierarchy.
`void`	`dispatchRestoreInstanceState(SparseArray<Parcelable> container)` Called by `restoreHierarchyState(android.util.SparseArray)` to retrieve the state for this view and its children.
`void`	`dispatchSaveInstanceState(SparseArray<Parcelable> container)` Called by `saveHierarchyState(android.util.SparseArray)` to store the state for this view and its children.
`void`	`dispatchSetActivated(boolean activated)` Dispatch setActivated to all of this View's children.
`void`	`dispatchSetPressed(boolean pressed)` Dispatch setPressed to all of this View's children.
`void`	`dispatchSetSelected(boolean selected)` Dispatch setSelected to all of this View's children.
`void`	`dispatchSystemUiVisibilityChanged(int visible)` This method is deprecated. Use `WindowInsets#isVisible(int)` to find out about system bar visibilities by setting a `OnApplyWindowInsetsListener` on this view.
`void`	`dispatchThawSelfOnly(SparseArray<Parcelable> container)` Perform dispatching of a `View.restoreHierarchyState(android.util.SparseArray)` to only this view, not to its children.
`boolean`	`dispatchTouchEvent(MotionEvent ev)` Pass the touch screen motion event down to the target view, or this view if it is the target.
`boolean`	`dispatchTrackballEvent(MotionEvent event)` Pass a trackball motion event down to the focused view.
`boolean`	`dispatchUnhandledMove(View focused, int direction)` This method is the last chance for the focused view and its ancestors to respond to an arrow key.
`void`	`dispatchVisibilityChanged(View changedView, int visibility)` Dispatch a view visibility change down the view hierarchy.
`void`	`dispatchWindowFocusChanged(boolean hasFocus)` Called when the window containing this view gains or loses window focus.
`void`	`dispatchWindowInsetsAnimationEnd(WindowInsetsAnimation animation)` Dispatches `WindowInsetsAnimation.Callback#onEnd(WindowInsetsAnimation)` when Window Insets animation ends.
`void`	`dispatchWindowInsetsAnimationPrepare(WindowInsetsAnimation animation)` Dispatches `WindowInsetsAnimation.Callback#onPrepare(WindowInsetsAnimation)` when Window Insets animation is being prepared.
`WindowInsets`	`dispatchWindowInsetsAnimationProgress(WindowInsets insets, List<WindowInsetsAnimation> runningAnimations)` Dispatches `WindowInsetsAnimation.Callback#onProgress(WindowInsets, List)` when Window Insets animation makes progress.
`WindowInsetsAnimation.Bounds`	`dispatchWindowInsetsAnimationStart(WindowInsetsAnimation animation, WindowInsetsAnimation.Bounds bounds)` Dispatches `WindowInsetsAnimation.Callback#onStart(WindowInsetsAnimation, Bounds)` when Window Insets animation is started.
`void`	`dispatchWindowSystemUiVisiblityChanged(int visible)` This method is deprecated. SystemUiVisibility flags are deprecated. Use `WindowInsetsController` instead.
`void`	`dispatchWindowVisibilityChanged(int visibility)` Dispatch a window visibility change down the view hierarchy.
`boolean`	`drawChild(Canvas canvas, View child, long drawingTime)` Draw one child of this View Group.
`void`	`drawableStateChanged()` This function is called whenever the state of the view changes in such a way that it impacts the state of drawables being shown.
`void`	`endViewTransition(View view)` This method should always be called following an earlier call to `startViewTransition(android.view.View)`.
`View`	`findFocus()` Find the view in the hierarchy rooted at this view that currently has focus.
`void`	`findViewsWithText(ArrayList<View> outViews, CharSequence text, int flags)` Finds the Views that contain given text.
`View`	`focusSearch(View focused, int direction)` Find the nearest view in the specified direction that wants to take focus.
`void`	`focusableViewAvailable(View v)` Tells the parent that a new focusable view has become available.
`boolean`	`gatherTransparentRegion(Region region)`
`ViewGroup.LayoutParams`	`generateDefaultLayoutParams()` Returns a set of default layout parameters.
`ViewGroup.LayoutParams`	`generateLayoutParams(AttributeSet attrs)` Returns a new set of layout parameters based on the supplied attributes set.
`ViewGroup.LayoutParams`	`generateLayoutParams(ViewGroup.LayoutParams p)` Returns a safe set of layout parameters based on the supplied layout params.
`CharSequence`	`getAccessibilityClassName()` Return the class name of this object to be used for accessibility purposes.
`View`	`getChildAt(int index)` Returns the view at the specified position in the group.
`int`	`getChildCount()` Returns the number of children in the group.
`int`	`getChildDrawingOrder(int childCount, int drawingPosition)` Converts drawing order position to container position.
`final int`	`getChildDrawingOrder(int drawingPosition)` Converts drawing order position to container position.
`static int`	`getChildMeasureSpec(int spec, int padding, int childDimension)` Does the hard part of measureChildren: figuring out the MeasureSpec to pass to a particular child.
`boolean`	`getChildStaticTransformation(View child, Transformation t)` Sets `t` to be the static transformation of the child, if set, returning a boolean to indicate whether a static transform was set.
`boolean`	`getChildVisibleRect(View child, Rect r, Point offset)` Compute the visible part of a rectangular region defined in terms of a child view's coordinates.
`boolean`	`getClipChildren()` Returns whether this group's children are clipped to their bounds before drawing.
`boolean`	`getClipToPadding()` Returns whether this ViewGroup will clip its children to its padding, and resize (but not clip) any EdgeEffect to the padded region, if padding is present.
`int`	`getDescendantFocusability()` Gets the descendant focusability of this view group.
`View`	`getFocusedChild()` Returns the focused child of this view, if any.
`LayoutAnimationController`	`getLayoutAnimation()` Returns the layout animation controller used to animate the group's children.
`Animation.AnimationListener`	`getLayoutAnimationListener()` Returns the animation listener to which layout animation events are sent.
`int`	`getLayoutMode()` Returns the basis of alignment during layout operations on this ViewGroup: either `LAYOUT_MODE_CLIP_BOUNDS` or `LAYOUT_MODE_OPTICAL_BOUNDS`.
`LayoutTransition`	`getLayoutTransition()` Gets the LayoutTransition object for this ViewGroup.
`int`	`getNestedScrollAxes()` Return the current axes of nested scrolling for this ViewGroup.
`ViewGroupOverlay`	`getOverlay()` Returns the ViewGroupOverlay for this view group, creating it if it does not yet exist.
`int`	`getPersistentDrawingCache()` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `View.setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `View.draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`boolean`	`getTouchscreenBlocksFocus()` Check whether this ViewGroup should ignore focus requests for itself and its children.
`boolean`	`hasFocus()` Returns true if this view has or contains focus
`boolean`	`hasTransientState()` Indicates whether the view is currently tracking transient state that the app should not need to concern itself with saving and restoring, but that the framework should take special note to preserve when possible.
`int`	`indexOfChild(View child)` Returns the position in the group of the specified child view.
`final void`	`invalidateChild(View child, Rect dirty)` This method is deprecated. Use `onDescendantInvalidated(android.view.View, android.view.View)` instead to observe updates to draw state in descendants.
`ViewParent`	`invalidateChildInParent(int[] location, Rect dirty)` This method is deprecated. Use `onDescendantInvalidated(android.view.View, android.view.View)` instead to observe updates to draw state in descendants.
`boolean`	`isAlwaysDrawnWithCacheEnabled()` This method is deprecated. As of `Build.VERSION_CODES.M`, this property is ignored. Child views may no longer have their caching behavior disabled by parents.
`boolean`	`isAnimationCacheEnabled()` This method is deprecated. As of `Build.VERSION_CODES.M`, this property is ignored. Caching behavior of children may be controlled through `View#setLayerType(int, Paint)`.
`boolean`	`isChildrenDrawingOrderEnabled()` Indicates whether the ViewGroup is drawing its children in the order defined by `getChildDrawingOrder(int, int)`.
`boolean`	`isChildrenDrawnWithCacheEnabled()` This method is deprecated. As of `Build.VERSION_CODES.M`, this property is ignored. Child views may no longer be forced to cache their rendering state by their parents. Use `View#setLayerType(int, Paint)` on individual Views instead.
`boolean`	`isLayoutSuppressed()` Returns whether layout calls on this container are currently being suppressed, due to an earlier call to `suppressLayout(boolean)`.
`boolean`	`isMotionEventSplittingEnabled()` Returns true if MotionEvents dispatched to this ViewGroup can be split to multiple children.
`boolean`	`isTransitionGroup()` Returns true if this ViewGroup should be considered as a single entity for removal when executing an Activity transition.
`void`	`jumpDrawablesToCurrentState()` Call `Drawable#jumpToCurrentState()` on all Drawable objects associated with this view.
`final void`	`layout(int l, int t, int r, int b)` Assign a size and position to a view and all of its descendants This is the second phase of the layout mechanism.
`void`	`measureChild(View child, int parentWidthMeasureSpec, int parentHeightMeasureSpec)` Ask one of the children of this view to measure itself, taking into account both the MeasureSpec requirements for this view and its padding.
`void`	`measureChildWithMargins(View child, int parentWidthMeasureSpec, int widthUsed, int parentHeightMeasureSpec, int heightUsed)` Ask one of the children of this view to measure itself, taking into account both the MeasureSpec requirements for this view and its padding and margins.
`void`	`measureChildren(int widthMeasureSpec, int heightMeasureSpec)` Ask all of the children of this view to measure themselves, taking into account both the MeasureSpec requirements for this view and its padding.
`void`	`notifySubtreeAccessibilityStateChanged(View child, View source, int changeType)` Notifies a view parent that the accessibility state of one of its descendants has changed and that the structure of the subtree is different.
`final void`	`offsetDescendantRectToMyCoords(View descendant, Rect rect)` Offset a rectangle that is in a descendant's coordinate space into our coordinate space.
`final void`	`offsetRectIntoDescendantCoords(View descendant, Rect rect)` Offset a rectangle that is in our coordinate space into an ancestor's coordinate space.
`void`	`onAttachedToWindow()` This is called when the view is attached to a window.
`int[]`	`onCreateDrawableState(int extraSpace)` Generate the new `Drawable` state for this view.
`void`	`onDescendantInvalidated(View child, View target)` The target View has been invalidated, or has had a drawing property changed that requires the hierarchy to re-render. If you override this method you must call through to the superclass implementation.
`void`	`onDetachedFromWindow()` This is called when the view is detached from a window.
`boolean`	`onInterceptHoverEvent(MotionEvent event)` Implement this method to intercept hover events before they are handled by child views.
`boolean`	`onInterceptTouchEvent(MotionEvent ev)` Implement this method to intercept all touch screen motion events.
`abstract void`	`onLayout(boolean changed, int l, int t, int r, int b)` Called from layout when this view should assign a size and position to each of its children.
`boolean`	`onNestedFling(View target, float velocityX, float velocityY, boolean consumed)` Request a fling from a nested scroll.
`boolean`	`onNestedPreFling(View target, float velocityX, float velocityY)` React to a nested fling before the target view consumes it.
`boolean`	`onNestedPrePerformAccessibilityAction(View target, int action, Bundle args)` React to an accessibility action delegated by a target descendant view before the target processes it. Subclasses should always call `super.onNestedPrePerformAccessibilityAction`
`void`	`onNestedPreScroll(View target, int dx, int dy, int[] consumed)` React to a nested scroll in progress before the target view consumes a portion of the scroll.
`void`	`onNestedScroll(View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed)` React to a nested scroll in progress.
`void`	`onNestedScrollAccepted(View child, View target, int axes)` React to the successful claiming of a nested scroll operation.
`boolean`	`onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect)` Look for a descendant to call `View#requestFocus` on.
`boolean`	`onRequestSendAccessibilityEvent(View child, AccessibilityEvent event)` Called when a child has requested sending an `AccessibilityEvent` and gives an opportunity to its parent to augment the event.
`PointerIcon`	`onResolvePointerIcon(MotionEvent event, int pointerIndex)` Returns the pointer icon for the motion event, or null if it doesn't specify the icon.
`boolean`	`onStartNestedScroll(View child, View target, int nestedScrollAxes)` React to a descendant view initiating a nestable scroll operation, claiming the nested scroll operation if appropriate.
`void`	`onStopNestedScroll(View child)` React to a nested scroll operation ending.
`void`	`onViewAdded(View child)` Called when a new child is added to this ViewGroup.
`void`	`onViewRemoved(View child)` Called when a child view is removed from this ViewGroup.
`void`	`recomputeViewAttributes(View child)` Tell view hierarchy that the global view attributes need to be re-evaluated.
`void`	`removeAllViews()` Call this method to remove all child views from the ViewGroup.
`void`	`removeAllViewsInLayout()` Called by a ViewGroup subclass to remove child views from itself, when it must first know its size on screen before it can calculate how many child views it will render.
`void`	`removeDetachedView(View child, boolean animate)` Finishes the removal of a detached view.
`void`	`removeView(View view)` Note: do not invoke this method from `View.draw(android.graphics.Canvas)`, `View.onDraw(android.graphics.Canvas)`, `dispatchDraw(android.graphics.Canvas)` or any related method.
`void`	`removeViewAt(int index)` Removes the view at the specified position in the group.
`void`	`removeViewInLayout(View view)` Removes a view during layout.
`void`	`removeViews(int start, int count)` Removes the specified range of views from the group.
`void`	`removeViewsInLayout(int start, int count)` Removes a range of views during layout.
`void`	`requestChildFocus(View child, View focused)` Called when a child of this parent wants focus
`boolean`	`requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate)` Called when a child of this group wants a particular rectangle to be positioned onto the screen.
`void`	`requestDisallowInterceptTouchEvent(boolean disallowIntercept)` Called when a child does not want this parent and its ancestors to intercept touch events with `ViewGroup#onInterceptTouchEvent(MotionEvent)`.
`boolean`	`requestFocus(int direction, Rect previouslyFocusedRect)` Call this to try to give focus to a specific view or to one of its descendants and give it hints about the direction and a specific rectangle that the focus is coming from. Looks for a view to give focus to respecting the setting specified by `getDescendantFocusability()`.
`boolean`	`requestSendAccessibilityEvent(View child, AccessibilityEvent event)` Called by a child to request from its parent to send an `AccessibilityEvent`.
`void`	`requestTransparentRegion(View child)` Called when a child wants the view hierarchy to gather and report transparent regions to the window compositor.
`boolean`	`restoreDefaultFocus()` Gives focus to the default-focus view in the view hierarchy that has this view as a root.
`void`	`scheduleLayoutAnimation()` Schedules the layout animation to be played after the next layout pass of this view group.
`void`	`setAddStatesFromChildren(boolean addsStates)` Sets whether this ViewGroup's drawable states also include its children's drawable states.
`void`	`setAlwaysDrawnWithCacheEnabled(boolean always)` This method is deprecated. As of `Build.VERSION_CODES.M`, this property is ignored. Child views may no longer have their caching behavior disabled by parents.
`void`	`setAnimationCacheEnabled(boolean enabled)` This method is deprecated. As of `Build.VERSION_CODES.M`, this property is ignored. Caching behavior of children may be controlled through `View#setLayerType(int, Paint)`.
`void`	`setChildrenDrawingCacheEnabled(boolean enabled)` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `View.setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `View.draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`setChildrenDrawingOrderEnabled(boolean enabled)` Tells the ViewGroup whether to draw its children in the order defined by the method `getChildDrawingOrder(int, int)`.
`void`	`setChildrenDrawnWithCacheEnabled(boolean enabled)` This method is deprecated. As of `Build.VERSION_CODES.M`, this property is ignored. Child views may no longer be forced to cache their rendering state by their parents. Use `View#setLayerType(int, Paint)` on individual Views instead.
`void`	`setClipChildren(boolean clipChildren)` By default, children are clipped to their bounds before drawing.
`void`	`setClipToPadding(boolean clipToPadding)` Sets whether this ViewGroup will clip its children to its padding and resize (but not clip) any EdgeEffect to the padded region, if padding is present.
`void`	`setDescendantFocusability(int focusability)` Set the descendant focusability of this view group.
`void`	`setLayoutAnimation(LayoutAnimationController controller)` Sets the layout animation controller used to animate the group's children after the first layout.
`void`	`setLayoutAnimationListener(Animation.AnimationListener animationListener)` Specifies the animation listener to which layout animation events must be sent.
`void`	`setLayoutMode(int layoutMode)` Sets the basis of alignment during the layout of this ViewGroup.
`void`	`setLayoutTransition(LayoutTransition transition)` Sets the LayoutTransition object for this ViewGroup.
`void`	`setMotionEventSplittingEnabled(boolean split)` Enable or disable the splitting of MotionEvents to multiple children during touch event dispatch.
`void`	`setOnHierarchyChangeListener(ViewGroup.OnHierarchyChangeListener listener)` Register a callback to be invoked when a child is added to or removed from this view.
`void`	`setPersistentDrawingCache(int drawingCacheToKeep)` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `View.setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `View.draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`setStaticTransformationsEnabled(boolean enabled)` When this property is set to true, this ViewGroup supports static transformations on children; this causes `getChildStaticTransformation(android.view.View, android.view.animation.Transformation)` to be invoked when a child is drawn.
`void`	`setTouchscreenBlocksFocus(boolean touchscreenBlocksFocus)` Set whether this ViewGroup should ignore focus requests for itself and its children.
`void`	`setTransitionGroup(boolean isTransitionGroup)` Changes whether or not this ViewGroup should be treated as a single entity during Activity Transitions.
`void`	`setWindowInsetsAnimationCallback(WindowInsetsAnimation.Callback callback)` Sets a `WindowInsetsAnimation.Callback` to be notified about animations of windows that cause insets.
`boolean`	`shouldDelayChildPressedState()` Return true if the pressed state should be delayed for children or descendants of this ViewGroup.
`boolean`	`showContextMenuForChild(View originalView, float x, float y)` Shows the context menu for the specified view or its ancestors anchored to the specified view-relative coordinate.
`boolean`	`showContextMenuForChild(View originalView)` Shows the context menu for the specified view or its ancestors.
`ActionMode`	`startActionModeForChild(View originalView, ActionMode.Callback callback, int type)` Start an action mode of a specific type for the specified view.
`ActionMode`	`startActionModeForChild(View originalView, ActionMode.Callback callback)` Start an action mode for the specified view with the default type `ActionMode#TYPE_PRIMARY`.
`void`	`startLayoutAnimation()` Runs the layout animation.
`void`	`startViewTransition(View view)` This method tells the ViewGroup that the given View object, which should have this ViewGroup as its parent, should be kept around (re-displayed when the ViewGroup draws its children) even if it is removed from its parent.
`void`	`suppressLayout(boolean suppress)` Tells this ViewGroup to suppress all layout() calls until layout suppression is disabled with a later call to suppressLayout(false).
`void`	`updateViewLayout(View view, ViewGroup.LayoutParams params)`

From class


        
          android.view.View

`void`	`addChildrenForAccessibility(ArrayList<View> outChildren)` Adds the children of this View relevant for accessibility to the given list as output.
`void`	`addExtraDataToAccessibilityNodeInfo(AccessibilityNodeInfo info, String extraDataKey, Bundle arguments)` Adds extra data to an `AccessibilityNodeInfo` based on an explicit request for the additional data.
`void`	`addFocusables(ArrayList<View> views, int direction)` Add any focusable views that are descendants of this view (possibly including this view if it is focusable itself) to views.
`void`	`addFocusables(ArrayList<View> views, int direction, int focusableMode)` Adds any focusable views that are descendants of this view (possibly including this view if it is focusable itself) to views.
`void`	`addKeyboardNavigationClusters(Collection<View> views, int direction)` Adds any keyboard navigation cluster roots that are descendants of this view (possibly including this view if it is a cluster root itself) to views.
`void`	`addOnAttachStateChangeListener(View.OnAttachStateChangeListener listener)` Add a listener for attach state changes.
`void`	`addOnLayoutChangeListener(View.OnLayoutChangeListener listener)` Add a listener that will be called when the bounds of the view change due to layout processing.
`void`	`addOnUnhandledKeyEventListener(View.OnUnhandledKeyEventListener listener)` Adds a listener which will receive unhandled `KeyEvent`s.
`void`	`addTouchables(ArrayList<View> views)` Add any touchable views that are descendants of this view (possibly including this view if it is touchable itself) to views.
`ViewPropertyAnimator`	`animate()` This method returns a ViewPropertyAnimator object, which can be used to animate specific properties on this View.
`void`	`announceForAccessibility(CharSequence text)` Convenience method for sending a `AccessibilityEvent#TYPE_ANNOUNCEMENT` `AccessibilityEvent` to suggest that an accessibility service announce the specified text to its users.
`void`	`autofill(AutofillValue value)` Automatically fills the content of this view with the `value`.
`void`	`autofill(SparseArray<AutofillValue> values)` Automatically fills the content of the virtual children within this view.
`boolean`	`awakenScrollBars(int startDelay, boolean invalidate)` Trigger the scrollbars to draw.
`boolean`	`awakenScrollBars(int startDelay)` Trigger the scrollbars to draw.
`boolean`	`awakenScrollBars()` Trigger the scrollbars to draw.
`void`	`bringToFront()` Change the view's z order in the tree, so it's on top of other sibling views.
`void`	`buildDrawingCache(boolean autoScale)` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`buildDrawingCache()` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`buildLayer()` Forces this view's layer to be created and this view to be rendered into its layer.
`boolean`	`callOnClick()` Directly call any attached OnClickListener.
`boolean`	`canResolveLayoutDirection()` Check if layout direction resolution can be done.
`boolean`	`canResolveTextAlignment()` Check if text alignment resolution can be done.
`boolean`	`canResolveTextDirection()` Check if text direction resolution can be done.
`boolean`	`canScrollHorizontally(int direction)` Check if this view can be scrolled horizontally in a certain direction.
`boolean`	`canScrollVertically(int direction)` Check if this view can be scrolled vertically in a certain direction.
`final void`	`cancelDragAndDrop()` Cancels an ongoing drag and drop operation.
`void`	`cancelLongPress()` Cancels a pending long press.
`final void`	`cancelPendingInputEvents()` Cancel any deferred high-level input events that were previously posted to the event queue.
`boolean`	`checkInputConnectionProxy(View view)` Called by the `InputMethodManager` when a view who is not the current input connection target is trying to make a call on the manager.
`void`	`clearAnimation()` Cancels any animations for this view.
`void`	`clearFocus()` Called when this view wants to give up focus.
`static int`	`combineMeasuredStates(int curState, int newState)` Merge two states as returned by `getMeasuredState()`.
`int`	`computeHorizontalScrollExtent()` Compute the horizontal extent of the horizontal scrollbar's thumb within the horizontal range.
`int`	`computeHorizontalScrollOffset()` Compute the horizontal offset of the horizontal scrollbar's thumb within the horizontal range.
`int`	`computeHorizontalScrollRange()` Compute the horizontal range that the horizontal scrollbar represents.
`void`	`computeScroll()` Called by a parent to request that a child update its values for mScrollX and mScrollY if necessary.
`WindowInsets`	`computeSystemWindowInsets(WindowInsets in, Rect outLocalInsets)` Compute insets that should be consumed by this view and the ones that should propagate to those under it.
`int`	`computeVerticalScrollExtent()` Compute the vertical extent of the vertical scrollbar's thumb within the vertical range.
`int`	`computeVerticalScrollOffset()` Compute the vertical offset of the vertical scrollbar's thumb within the horizontal range.
`int`	`computeVerticalScrollRange()` Compute the vertical range that the vertical scrollbar represents.
`AccessibilityNodeInfo`	`createAccessibilityNodeInfo()` Returns an `AccessibilityNodeInfo` representing this view from the point of view of an `AccessibilityService`.
`void`	`createContextMenu(ContextMenu menu)` Show the context menu for this view.
`void`	`destroyDrawingCache()` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`WindowInsets`	`dispatchApplyWindowInsets(WindowInsets insets)` Request to apply the given window insets to this view or another view in its subtree.
`boolean`	`dispatchCapturedPointerEvent(MotionEvent event)` Pass a captured pointer event down to the focused view.
`void`	`dispatchConfigurationChanged(Configuration newConfig)` Dispatch a notification about a resource configuration change down the view hierarchy.
`void`	`dispatchDisplayHint(int hint)` Dispatch a hint about whether this view is displayed.
`boolean`	`dispatchDragEvent(DragEvent event)` Detects if this View is enabled and has a drag event listener.
`void`	`dispatchDraw(Canvas canvas)` Called by draw to draw the child views.
`void`	`dispatchDrawableHotspotChanged(float x, float y)` Dispatches drawableHotspotChanged to all of this View's children.
`void`	`dispatchFinishTemporaryDetach()` Dispatch `onFinishTemporaryDetach()` to this View and its direct children if this is a container View.
`boolean`	`dispatchGenericFocusedEvent(MotionEvent event)` Dispatch a generic motion event to the currently focused view.
`boolean`	`dispatchGenericMotionEvent(MotionEvent event)` Dispatch a generic motion event.
`boolean`	`dispatchGenericPointerEvent(MotionEvent event)` Dispatch a generic motion event to the view under the first pointer.
`boolean`	`dispatchHoverEvent(MotionEvent event)` Dispatch a hover event.
`boolean`	`dispatchKeyEvent(KeyEvent event)` Dispatch a key event to the next view on the focus path.
`boolean`	`dispatchKeyEventPreIme(KeyEvent event)` Dispatch a key event before it is processed by any input method associated with the view hierarchy.
`boolean`	`dispatchKeyShortcutEvent(KeyEvent event)` Dispatches a key shortcut event.
`boolean`	`dispatchNestedFling(float velocityX, float velocityY, boolean consumed)` Dispatch a fling to a nested scrolling parent.
`boolean`	`dispatchNestedPreFling(float velocityX, float velocityY)` Dispatch a fling to a nested scrolling parent before it is processed by this view.
`boolean`	`dispatchNestedPrePerformAccessibilityAction(int action, Bundle arguments)` Report an accessibility action to this view's parents for delegated processing.
`boolean`	`dispatchNestedPreScroll(int dx, int dy, int[] consumed, int[] offsetInWindow)` Dispatch one step of a nested scroll in progress before this view consumes any portion of it.
`boolean`	`dispatchNestedScroll(int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int[] offsetInWindow)` Dispatch one step of a nested scroll in progress.
`void`	`dispatchPointerCaptureChanged(boolean hasCapture)`
`boolean`	`dispatchPopulateAccessibilityEvent(AccessibilityEvent event)` Dispatches an `AccessibilityEvent` to the `View` first and then to its children for adding their text content to the event.
`void`	`dispatchProvideAutofillStructure(ViewStructure structure, int flags)` Dispatches creation of a `ViewStructure`s for autofill purposes down the hierarchy, when an Assist structure is being created as part of an autofill request.
`void`	`dispatchProvideStructure(ViewStructure structure)` Dispatch creation of `ViewStructure` down the hierarchy.
`void`	`dispatchRestoreInstanceState(SparseArray<Parcelable> container)` Called by `restoreHierarchyState(android.util.SparseArray)` to retrieve the state for this view and its children.
`void`	`dispatchSaveInstanceState(SparseArray<Parcelable> container)` Called by `saveHierarchyState(android.util.SparseArray)` to store the state for this view and its children.
`void`	`dispatchSetActivated(boolean activated)` Dispatch setActivated to all of this View's children.
`void`	`dispatchSetPressed(boolean pressed)` Dispatch setPressed to all of this View's children.
`void`	`dispatchSetSelected(boolean selected)` Dispatch setSelected to all of this View's children.
`void`	`dispatchStartTemporaryDetach()` Dispatch `onStartTemporaryDetach()` to this View and its direct children if this is a container View.
`void`	`dispatchSystemUiVisibilityChanged(int visibility)` This method is deprecated. Use `WindowInsets#isVisible(int)` to find out about system bar visibilities by setting a `OnApplyWindowInsetsListener` on this view.
`boolean`	`dispatchTouchEvent(MotionEvent event)` Pass the touch screen motion event down to the target view, or this view if it is the target.
`boolean`	`dispatchTrackballEvent(MotionEvent event)` Pass a trackball motion event down to the focused view.
`boolean`	`dispatchUnhandledMove(View focused, int direction)` This method is the last chance for the focused view and its ancestors to respond to an arrow key.
`void`	`dispatchVisibilityChanged(View changedView, int visibility)` Dispatch a view visibility change down the view hierarchy.
`void`	`dispatchWindowFocusChanged(boolean hasFocus)` Called when the window containing this view gains or loses window focus.
`void`	`dispatchWindowInsetsAnimationEnd(WindowInsetsAnimation animation)` Dispatches `WindowInsetsAnimation.Callback#onEnd(WindowInsetsAnimation)` when Window Insets animation ends.
`void`	`dispatchWindowInsetsAnimationPrepare(WindowInsetsAnimation animation)` Dispatches `WindowInsetsAnimation.Callback#onPrepare(WindowInsetsAnimation)` when Window Insets animation is being prepared.
`WindowInsets`	`dispatchWindowInsetsAnimationProgress(WindowInsets insets, List<WindowInsetsAnimation> runningAnimations)` Dispatches `WindowInsetsAnimation.Callback#onProgress(WindowInsets, List)` when Window Insets animation makes progress.
`WindowInsetsAnimation.Bounds`	`dispatchWindowInsetsAnimationStart(WindowInsetsAnimation animation, WindowInsetsAnimation.Bounds bounds)` Dispatches `WindowInsetsAnimation.Callback#onStart(WindowInsetsAnimation, Bounds)` when Window Insets animation is started.
`void`	`dispatchWindowSystemUiVisiblityChanged(int visible)` This method is deprecated. SystemUiVisibility flags are deprecated. Use `WindowInsetsController` instead.
`void`	`dispatchWindowVisibilityChanged(int visibility)` Dispatch a window visibility change down the view hierarchy.
`void`	`draw(Canvas canvas)` Manually render this view (and all of its children) to the given Canvas.
`void`	`drawableHotspotChanged(float x, float y)` This function is called whenever the view hotspot changes and needs to be propagated to drawables or child views managed by the view.
`void`	`drawableStateChanged()` This function is called whenever the state of the view changes in such a way that it impacts the state of drawables being shown.
`View`	`findFocus()` Find the view in the hierarchy rooted at this view that currently has focus.
`final <T extends View> T`	`findViewById(int id)` Finds the first descendant view with the given ID, the view itself if the ID matches `getId()`, or `null` if the ID is invalid (< 0) or there is no matching view in the hierarchy.
`final <T extends View> T`	`findViewWithTag(Object tag)` Look for a child view with the given tag.
`void`	`findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags)` Finds the Views that contain given text.
`boolean`	`fitSystemWindows(Rect insets)` This method is deprecated. As of API 20 use `dispatchApplyWindowInsets(android.view.WindowInsets)` to apply insets to views. Views should override `onApplyWindowInsets(android.view.WindowInsets)` or use `setOnApplyWindowInsetsListener(android.view.View.OnApplyWindowInsetsListener)` to implement handling their own insets.
`View`	`focusSearch(int direction)` Find the nearest view in the specified direction that can take focus.
`void`	`forceHasOverlappingRendering(boolean hasOverlappingRendering)` Sets the behavior for overlapping rendering for this view (see `hasOverlappingRendering()` for more details on this behavior).
`void`	`forceLayout()` Forces this view to be laid out during the next layout pass.
`static int`	`generateViewId()` Generate a value suitable for use in `setId(int)`.
`CharSequence`	`getAccessibilityClassName()` Return the class name of this object to be used for accessibility purposes.
`View.AccessibilityDelegate`	`getAccessibilityDelegate()` Returns the delegate for implementing accessibility support via composition.
`int`	`getAccessibilityLiveRegion()` Gets the live region mode for this View.
`AccessibilityNodeProvider`	`getAccessibilityNodeProvider()` Gets the provider for managing a virtual view hierarchy rooted at this View and reported to `AccessibilityService`s that explore the window content.
`CharSequence`	`getAccessibilityPaneTitle()` Get the title of the pane for purposes of accessibility.
`int`	`getAccessibilityTraversalAfter()` Gets the id of a view after which this one is visited in accessibility traversal.
`int`	`getAccessibilityTraversalBefore()` Gets the id of a view before which this one is visited in accessibility traversal.
`float`	`getAlpha()` The opacity of the view.
`Animation`	`getAnimation()` Get the animation currently associated with this view.
`Matrix`	`getAnimationMatrix()` Return the current transformation matrix of the view.
`IBinder`	`getApplicationWindowToken()` Retrieve a unique token identifying the top-level "real" window of the window that this view is attached to.
`int[]`	`getAttributeResolutionStack(int attribute)` Returns the ordered list of resource ID that are considered when resolving attribute values for this `View`.
`Map<Integer, Integer>`	`getAttributeSourceResourceMap()` Returns the mapping of attribute resource ID to source resource ID where the attribute value was set.
`String[]`	`getAutofillHints()` Gets the hints that help an `AutofillService` determine how to autofill the view with the user's data.
`final AutofillId`	`getAutofillId()` Gets the unique, logical identifier of this view in the activity, for autofill purposes.
`int`	`getAutofillType()` Describes the autofill type of this view, so an `AutofillService` can create the proper `AutofillValue` when autofilling the view.
`AutofillValue`	`getAutofillValue()` Gets the `View`'s current autofill value.
`Drawable`	`getBackground()` Gets the background drawable
`BlendMode`	`getBackgroundTintBlendMode()` Return the blending mode used to apply the tint to the background drawable, if specified.
`ColorStateList`	`getBackgroundTintList()` Return the tint applied to the background drawable, if specified.
`PorterDuff.Mode`	`getBackgroundTintMode()` Return the blending mode used to apply the tint to the background drawable, if specified.
`int`	`getBaseline()` Return the offset of the widget's text baseline from the widget's top boundary.
`final int`	`getBottom()` Bottom position of this view relative to its parent.
`float`	`getBottomFadingEdgeStrength()` Returns the strength, or intensity, of the bottom faded edge.
`int`	`getBottomPaddingOffset()` Amount by which to extend the bottom fading region.
`float`	`getCameraDistance()` Gets the distance along the Z axis from the camera to this view.
`boolean`	`getClipBounds(Rect outRect)` Populates an output rectangle with the clip bounds of the view, returning `true` if successful or `false` if the view's clip bounds are `null`.
`Rect`	`getClipBounds()` Returns a copy of the current `clipBounds`.
`final boolean`	`getClipToOutline()` Returns whether the Outline should be used to clip the contents of the View.
`final ContentCaptureSession`	`getContentCaptureSession()` Gets the session used to notify content capture events.
`CharSequence`	`getContentDescription()` Returns the `View`'s content description.
`final Context`	`getContext()` Returns the context the view is running in, through which it can access the current theme, resources, etc.
`ContextMenu.ContextMenuInfo`	`getContextMenuInfo()` Views should implement this if they have extra information to associate with the context menu.
`final boolean`	`getDefaultFocusHighlightEnabled()` /** Returns whether this View should use a default focus highlight when it gets focused but doesn't have `R.attr.state_focused` defined in its background.
`static int`	`getDefaultSize(int size, int measureSpec)` Utility to return a default size.
`Display`	`getDisplay()` Gets the logical display to which the view's window has been attached.
`final int[]`	`getDrawableState()` Return an array of resource IDs of the drawable states representing the current state of the view.
`Bitmap`	`getDrawingCache()` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`Bitmap`	`getDrawingCache(boolean autoScale)` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`int`	`getDrawingCacheBackgroundColor()` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`int`	`getDrawingCacheQuality()` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`getDrawingRect(Rect outRect)` Return the visible drawing bounds of your view.
`long`	`getDrawingTime()` Return the time at which the drawing of the view hierarchy started.
`float`	`getElevation()` The base elevation of this view relative to its parent, in pixels.
`int`	`getExplicitStyle()` Returns the resource ID for the style specified using `style="..."` in the `AttributeSet`'s backing XML element or `Resources#ID_NULL` otherwise if not specified or otherwise not applicable.
`boolean`	`getFilterTouchesWhenObscured()` Gets whether the framework should discard touches when the view's window is obscured by another visible window.
`boolean`	`getFitsSystemWindows()` Check for state of `setFitsSystemWindows(boolean)`.
`int`	`getFocusable()` Returns the focusable setting for this view.
`ArrayList<View>`	`getFocusables(int direction)` Find and return all focusable views that are descendants of this view, possibly including this view if it is focusable itself.
`void`	`getFocusedRect(Rect r)` When a view has focus and the user navigates away from it, the next view is searched for starting from the rectangle filled in by this method.
`Drawable`	`getForeground()` Returns the drawable used as the foreground of this View.
`int`	`getForegroundGravity()` Describes how the foreground is positioned.
`BlendMode`	`getForegroundTintBlendMode()` Return the blending mode used to apply the tint to the foreground drawable, if specified.
`ColorStateList`	`getForegroundTintList()` Return the tint applied to the foreground drawable, if specified.
`PorterDuff.Mode`	`getForegroundTintMode()` Return the blending mode used to apply the tint to the foreground drawable, if specified.
`final boolean`	`getGlobalVisibleRect(Rect r)`
`boolean`	`getGlobalVisibleRect(Rect r, Point globalOffset)` If some part of this view is not clipped by any of its parents, then return that area in r in global (root) coordinates.
`Handler`	`getHandler()`
`final boolean`	`getHasOverlappingRendering()` Returns the value for overlapping rendering that is used internally.
`final int`	`getHeight()` Return the height of your view.
`void`	`getHitRect(Rect outRect)` Hit rectangle in parent's coordinates
`int`	`getHorizontalFadingEdgeLength()` Returns the size of the horizontal faded edges used to indicate that more content in this view is visible.
`int`	`getHorizontalScrollbarHeight()` Returns the height of the horizontal scrollbar.
`Drawable`	`getHorizontalScrollbarThumbDrawable()` Returns the currently configured Drawable for the thumb of the horizontal scroll bar if it exists, null otherwise.
`Drawable`	`getHorizontalScrollbarTrackDrawable()` Returns the currently configured Drawable for the track of the horizontal scroll bar if it exists, null otherwise.
`int`	`getId()` Returns this view's identifier.
`int`	`getImportantForAccessibility()` Gets the mode for determining whether this View is important for accessibility.
`int`	`getImportantForAutofill()` Gets the mode for determining whether this view is important for autofill.
`int`	`getImportantForContentCapture()` Gets the mode for determining whether this view is important for content capture.
`boolean`	`getKeepScreenOn()` Returns whether the screen should remain on, corresponding to the current value of `KEEP_SCREEN_ON`.
`KeyEvent.DispatcherState`	`getKeyDispatcherState()` Return the global `KeyEvent.DispatcherState` for this view's window.
`int`	`getLabelFor()` Gets the id of a view for which this view serves as a label for accessibility purposes.
`int`	`getLayerType()` Indicates what type of layer is currently associated with this view.
`int`	`getLayoutDirection()` Returns the resolved layout direction for this view.
`ViewGroup.LayoutParams`	`getLayoutParams()` Get the LayoutParams associated with this view.
`final int`	`getLeft()` Left position of this view relative to its parent.
`float`	`getLeftFadingEdgeStrength()` Returns the strength, or intensity, of the left faded edge.
`int`	`getLeftPaddingOffset()` Amount by which to extend the left fading region.
`final boolean`	`getLocalVisibleRect(Rect r)`
`void`	`getLocationInSurface(int[] location)` Compute the view's coordinate within the surface.
`void`	`getLocationInWindow(int[] outLocation)` Computes the coordinates of this view in its window.
`void`	`getLocationOnScreen(int[] outLocation)` Computes the coordinates of this view on the screen.
`Matrix`	`getMatrix()` The transform matrix of this view, which is calculated based on the current rotation, scale, and pivot properties.
`final int`	`getMeasuredHeight()` Like `getMeasuredHeightAndState()`, but only returns the raw height component (that is the result is masked by `MEASURED_SIZE_MASK`).
`final int`	`getMeasuredHeightAndState()` Return the full height measurement information for this view as computed by the most recent call to `measure(int, int)`.
`final int`	`getMeasuredState()` Return only the state bits of `getMeasuredWidthAndState()` and `getMeasuredHeightAndState()`, combined into one integer.
`final int`	`getMeasuredWidth()` Like `getMeasuredWidthAndState()`, but only returns the raw width component (that is the result is masked by `MEASURED_SIZE_MASK`).
`final int`	`getMeasuredWidthAndState()` Return the full width measurement information for this view as computed by the most recent call to `measure(int, int)`.
`int`	`getMinimumHeight()` Returns the minimum height of the view.
`int`	`getMinimumWidth()` Returns the minimum width of the view.
`int`	`getNextClusterForwardId()` Gets the id of the root of the next keyboard navigation cluster.
`int`	`getNextFocusDownId()` Gets the id of the view to use when the next focus is `FOCUS_DOWN`.
`int`	`getNextFocusForwardId()` Gets the id of the view to use when the next focus is `FOCUS_FORWARD`.
`int`	`getNextFocusLeftId()` Gets the id of the view to use when the next focus is `FOCUS_LEFT`.
`int`	`getNextFocusRightId()` Gets the id of the view to use when the next focus is `FOCUS_RIGHT`.
`int`	`getNextFocusUpId()` Gets the id of the view to use when the next focus is `FOCUS_UP`.
`View.OnFocusChangeListener`	`getOnFocusChangeListener()` Returns the focus-change callback registered for this view.
`int`	`getOutlineAmbientShadowColor()`
`ViewOutlineProvider`	`getOutlineProvider()` Returns the current `ViewOutlineProvider` of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping.
`int`	`getOutlineSpotShadowColor()`
`int`	`getOverScrollMode()` Returns the over-scroll mode for this view.
`ViewOverlay`	`getOverlay()` Returns the overlay for this view, creating it if it does not yet exist.
`int`	`getPaddingBottom()` Returns the bottom padding of this view.
`int`	`getPaddingEnd()` Returns the end padding of this view depending on its resolved layout direction.
`int`	`getPaddingLeft()` Returns the left padding of this view.
`int`	`getPaddingRight()` Returns the right padding of this view.
`int`	`getPaddingStart()` Returns the start padding of this view depending on its resolved layout direction.
`int`	`getPaddingTop()` Returns the top padding of this view.
`final ViewParent`	`getParent()` Gets the parent of this view.
`ViewParent`	`getParentForAccessibility()` Gets the parent for accessibility purposes.
`float`	`getPivotX()` The x location of the point around which the view is `rotated` and `scaled`.
`float`	`getPivotY()` The y location of the point around which the view is `rotated` and `scaled`.
`PointerIcon`	`getPointerIcon()` Gets the pointer icon for the current view.
`Resources`	`getResources()` Returns the resources associated with this view.
`final boolean`	`getRevealOnFocusHint()` Returns this view's preference for reveal behavior when it gains focus.
`final int`	`getRight()` Right position of this view relative to its parent.
`float`	`getRightFadingEdgeStrength()` Returns the strength, or intensity, of the right faded edge.
`int`	`getRightPaddingOffset()` Amount by which to extend the right fading region.
`View`	`getRootView()` Finds the topmost view in the current view hierarchy.
`WindowInsets`	`getRootWindowInsets()` Provide original WindowInsets that are dispatched to the view hierarchy.
`float`	`getRotation()` The degrees that the view is rotated around the pivot point.
`float`	`getRotationX()` The degrees that the view is rotated around the horizontal axis through the pivot point.
`float`	`getRotationY()` The degrees that the view is rotated around the vertical axis through the pivot point.
`float`	`getScaleX()` The amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width.
`float`	`getScaleY()` The amount that the view is scaled in y around the pivot point, as a proportion of the view's unscaled height.
`int`	`getScrollBarDefaultDelayBeforeFade()` Returns the delay before scrollbars fade.
`int`	`getScrollBarFadeDuration()` Returns the scrollbar fade duration.
`int`	`getScrollBarSize()` Returns the scrollbar size.
`int`	`getScrollBarStyle()` Returns the current scrollbar style.
`int`	`getScrollIndicators()` Returns a bitmask representing the enabled scroll indicators.
`final int`	`getScrollX()` Return the scrolled left position of this view.
`final int`	`getScrollY()` Return the scrolled top position of this view.
`int`	`getSolidColor()` Override this if your view is known to always be drawn on top of a solid color background, and needs to draw fading edges.
`int`	`getSourceLayoutResId()` A `View` can be inflated from an XML layout.
`final CharSequence`	`getStateDescription()` Returns the `View`'s state description.
`StateListAnimator`	`getStateListAnimator()` Returns the current StateListAnimator if exists.
`int`	`getSuggestedMinimumHeight()` Returns the suggested minimum height that the view should use.
`int`	`getSuggestedMinimumWidth()` Returns the suggested minimum width that the view should use.
`List<Rect>`	`getSystemGestureExclusionRects()` Retrieve the list of areas within this view's post-layout coordinate space where the system should not intercept touch or other pointing device gestures.
`int`	`getSystemUiVisibility()` This method is deprecated. SystemUiVisibility flags are deprecated. Use `WindowInsetsController` instead.
`Object`	`getTag()` Returns this view's tag.
`Object`	`getTag(int key)` Returns the tag associated with this view and the specified key.
`int`	`getTextAlignment()` Return the resolved text alignment.
`int`	`getTextDirection()` Return the resolved text direction.
`CharSequence`	`getTooltipText()` Returns the view's tooltip text.
`final int`	`getTop()` Top position of this view relative to its parent.
`float`	`getTopFadingEdgeStrength()` Returns the strength, or intensity, of the top faded edge.
`int`	`getTopPaddingOffset()` Amount by which to extend the top fading region.
`TouchDelegate`	`getTouchDelegate()` Gets the TouchDelegate for this View.
`ArrayList<View>`	`getTouchables()` Find and return all touchable views that are descendants of this view, possibly including this view if it is touchable itself.
`float`	`getTransitionAlpha()` This property is intended only for use by the Fade transition, which animates it to produce a visual translucency that does not side-effect (or get affected by) the real alpha property.
`String`	`getTransitionName()` Returns the name of the View to be used to identify Views in Transitions.
`float`	`getTranslationX()` The horizontal location of this view relative to its `left` position.
`float`	`getTranslationY()` The vertical location of this view relative to its `top` position.
`float`	`getTranslationZ()` The depth location of this view relative to its `elevation`.
`long`	`getUniqueDrawingId()` Get the identifier used for this view by the drawing system.
`int`	`getVerticalFadingEdgeLength()` Returns the size of the vertical faded edges used to indicate that more content in this view is visible.
`int`	`getVerticalScrollbarPosition()`
`Drawable`	`getVerticalScrollbarThumbDrawable()` Returns the currently configured Drawable for the thumb of the vertical scroll bar if it exists, null otherwise.
`Drawable`	`getVerticalScrollbarTrackDrawable()` Returns the currently configured Drawable for the track of the vertical scroll bar if it exists, null otherwise.
`int`	`getVerticalScrollbarWidth()` Returns the width of the vertical scrollbar.
`ViewTreeObserver`	`getViewTreeObserver()` Returns the ViewTreeObserver for this view's hierarchy.
`int`	`getVisibility()` Returns the visibility status for this view.
`final int`	`getWidth()` Return the width of your view.
`int`	`getWindowAttachCount()`
`WindowId`	`getWindowId()` Retrieve the `WindowId` for the window this view is currently attached to.
`WindowInsetsController`	`getWindowInsetsController()` Retrieves the single `WindowInsetsController` of the window this view is attached to.
`int`	`getWindowSystemUiVisibility()` This method is deprecated. SystemUiVisibility flags are deprecated. Use `WindowInsetsController` instead.
`IBinder`	`getWindowToken()` Retrieve a unique token identifying the window this view is attached to.
`int`	`getWindowVisibility()` Returns the current visibility of the window this view is attached to (either `GONE`, `INVISIBLE`, or `VISIBLE`).
`void`	`getWindowVisibleDisplayFrame(Rect outRect)` Retrieve the overall visible display size in which the window this view is attached to has been positioned in.
`float`	`getX()` The visual x position of this view, in pixels.
`float`	`getY()` The visual y position of this view, in pixels.
`float`	`getZ()` The visual z position of this view, in pixels.
`boolean`	`hasExplicitFocusable()` Returns true if this view is focusable or if it contains a reachable View for which `hasExplicitFocusable()` returns `true`.
`boolean`	`hasFocus()` Returns true if this view has focus itself, or is the ancestor of the view that has focus.
`boolean`	`hasFocusable()` Returns true if this view is focusable or if it contains a reachable View for which `hasFocusable()` returns `true`.
`boolean`	`hasNestedScrollingParent()` Returns true if this view has a nested scrolling parent.
`boolean`	`hasOnClickListeners()` Return whether this view has an attached OnClickListener.
`boolean`	`hasOnLongClickListeners()` Return whether this view has an attached OnLongClickListener.
`boolean`	`hasOverlappingRendering()` Returns whether this View has content which overlaps.
`boolean`	`hasPointerCapture()` Checks pointer capture status.
`boolean`	`hasTransientState()` Indicates whether the view is currently tracking transient state that the app should not need to concern itself with saving and restoring, but that the framework should take special note to preserve when possible.
`boolean`	`hasWindowFocus()` Returns true if this view is in a window that currently has window focus.
`static View`	`inflate(Context context, int resource, ViewGroup root)` Inflate a view from an XML resource.
`void`	`invalidate()` Invalidate the whole view.
`void`	`invalidate(Rect dirty)` This method is deprecated. The switch to hardware accelerated rendering in API 14 reduced the importance of the dirty rectangle. In API 21 the given rectangle is ignored entirely in favor of an internally-calculated area instead. Because of this, clients are encouraged to just call `invalidate()`.
`void`	`invalidate(int l, int t, int r, int b)` This method is deprecated. The switch to hardware accelerated rendering in API 14 reduced the importance of the dirty rectangle. In API 21 the given rectangle is ignored entirely in favor of an internally-calculated area instead. Because of this, clients are encouraged to just call `invalidate()`.
`void`	`invalidateDrawable(Drawable drawable)` Invalidates the specified Drawable.
`void`	`invalidateOutline()` Called to rebuild this View's Outline from its `ViewOutlineProvider`
`boolean`	`isAccessibilityFocused()` Returns whether this View is accessibility focused.
`boolean`	`isAccessibilityHeading()` Gets whether this view is a heading for accessibility purposes.
`boolean`	`isActivated()` Indicates the activation state of this view.
`boolean`	`isAttachedToWindow()` Returns true if this view is currently attached to a window.
`boolean`	`isClickable()` Indicates whether this view reacts to click events or not.
`boolean`	`isContextClickable()` Indicates whether this view reacts to context clicks or not.
`boolean`	`isDirty()` True if this view has changed since the last time being drawn.
`boolean`	`isDrawingCacheEnabled()` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`boolean`	`isDuplicateParentStateEnabled()` Indicates whether this duplicates its drawable state from its parent.
`boolean`	`isEnabled()` Returns the enabled status for this view.
`final boolean`	`isFocusable()` Returns whether this View is currently able to take focus.
`final boolean`	`isFocusableInTouchMode()` When a view is focusable, it may not want to take focus when in touch mode.
`boolean`	`isFocused()` Returns true if this view has focus
`final boolean`	`isFocusedByDefault()` Returns whether this View should receive focus when the focus is restored for the view hierarchy containing this view.
`boolean`	`isForceDarkAllowed()` See `setForceDarkAllowed(boolean)`
`boolean`	`isHapticFeedbackEnabled()`
`boolean`	`isHardwareAccelerated()` Indicates whether this view is attached to a hardware accelerated window or not.
`boolean`	`isHorizontalFadingEdgeEnabled()` Indicate whether the horizontal edges are faded when the view is scrolled horizontally.
`boolean`	`isHorizontalScrollBarEnabled()` Indicate whether the horizontal scrollbar should be drawn or not.
`boolean`	`isHovered()` Returns true if the view is currently hovered.
`boolean`	`isImportantForAccessibility()` Computes whether this view should be exposed for accessibility.
`final boolean`	`isImportantForAutofill()` Hints the Android System whether the `AssistStructure.ViewNode` associated with this view is considered important for autofill purposes.
`final boolean`	`isImportantForContentCapture()` Hints the Android System whether this view is considered important for content capture, based on the value explicitly set by `setImportantForContentCapture(int)` and heuristics when it's `IMPORTANT_FOR_CONTENT_CAPTURE_AUTO`.
`boolean`	`isInEditMode()` Indicates whether this View is currently in edit mode.
`boolean`	`isInLayout()` Returns whether the view hierarchy is currently undergoing a layout pass.
`boolean`	`isInTouchMode()` Returns whether the device is currently in touch mode.
`final boolean`	`isKeyboardNavigationCluster()` Returns whether this View is a root of a keyboard navigation cluster.
`boolean`	`isLaidOut()` Returns true if this view has been through at least one layout since it was last attached to or detached from a window.
`boolean`	`isLayoutDirectionResolved()`
`boolean`	`isLayoutRequested()` Indicates whether or not this view's layout will be requested during the next hierarchy layout pass.
`boolean`	`isLongClickable()` Indicates whether this view reacts to long click events or not.
`boolean`	`isNestedScrollingEnabled()` Returns true if nested scrolling is enabled for this view.
`boolean`	`isOpaque()` Indicates whether this View is opaque.
`boolean`	`isPaddingOffsetRequired()` If the View draws content inside its padding and enables fading edges, it needs to support padding offsets.
`boolean`	`isPaddingRelative()` Return if the padding has been set through relative values `setPaddingRelative(int, int, int, int)` or through
`boolean`	`isPivotSet()` Returns whether or not a pivot has been set by a call to `setPivotX(float)` or `setPivotY(float)`.
`boolean`	`isPressed()` Indicates whether the view is currently in pressed state.
`boolean`	`isSaveEnabled()` Indicates whether this view will save its state (that is, whether its `onSaveInstanceState()` method will be called).
`boolean`	`isSaveFromParentEnabled()` Indicates whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent.
`boolean`	`isScreenReaderFocusable()` Returns whether the view should be treated as a focusable unit by screen reader accessibility tools.
`boolean`	`isScrollContainer()` Indicates whether this view is one of the set of scrollable containers in its window.
`boolean`	`isScrollbarFadingEnabled()` Returns true if scrollbars will fade when this view is not scrolling
`boolean`	`isSelected()` Indicates the selection state of this view.
`final boolean`	`isShowingLayoutBounds()` Returns `true` when the View is attached and the system developer setting to show the layout bounds is enabled or `false` otherwise.
`boolean`	`isShown()` Returns the visibility of this view and all of its ancestors
`boolean`	`isSoundEffectsEnabled()`
`final boolean`	`isTemporarilyDetached()` Tells whether the `View` is in the state between `onStartTemporaryDetach()` and `onFinishTemporaryDetach()`.
`boolean`	`isTextAlignmentResolved()`
`boolean`	`isTextDirectionResolved()`
`boolean`	`isVerticalFadingEdgeEnabled()` Indicate whether the vertical edges are faded when the view is scrolled horizontally.
`boolean`	`isVerticalScrollBarEnabled()` Indicate whether the vertical scrollbar should be drawn or not.
`boolean`	`isVisibleToUserForAutofill(int virtualId)` Computes whether this virtual autofill view is visible to the user.
`void`	`jumpDrawablesToCurrentState()` Call `Drawable#jumpToCurrentState()` on all Drawable objects associated with this view.
`View`	`keyboardNavigationClusterSearch(View currentCluster, int direction)` Find the nearest keyboard navigation cluster in the specified direction.
`void`	`layout(int l, int t, int r, int b)` Assign a size and position to a view and all of its descendants This is the second phase of the layout mechanism.
`final void`	`measure(int widthMeasureSpec, int heightMeasureSpec)` This is called to find out how big a view should be.
`static int[]`	`mergeDrawableStates(int[] baseState, int[] additionalState)` Merge your own state values in `additionalState` into the base state values `baseState` that were returned by `onCreateDrawableState(int)`.
`void`	`offsetLeftAndRight(int offset)` Offset this view's horizontal location by the specified amount of pixels.
`void`	`offsetTopAndBottom(int offset)` Offset this view's vertical location by the specified number of pixels.
`void`	`onAnimationEnd()` Invoked by a parent ViewGroup to notify the end of the animation currently associated with this view.
`void`	`onAnimationStart()` Invoked by a parent ViewGroup to notify the start of the animation currently associated with this view.
`WindowInsets`	`onApplyWindowInsets(WindowInsets insets)` Called when the view should apply `WindowInsets` according to its internal policy.
`void`	`onAttachedToWindow()` This is called when the view is attached to a window.
`void`	`onCancelPendingInputEvents()` Called as the result of a call to `cancelPendingInputEvents()` on this view or a parent view.
`boolean`	`onCapturedPointerEvent(MotionEvent event)` Implement this method to handle captured pointer events
`boolean`	`onCheckIsTextEditor()` Check whether the called view is a text editor, in which case it would make sense to automatically display a soft input window for it.
`void`	`onConfigurationChanged(Configuration newConfig)` Called when the current configuration of the resources being used by the application have changed.
`void`	`onCreateContextMenu(ContextMenu menu)` Views should implement this if the view itself is going to add items to the context menu.
`int[]`	`onCreateDrawableState(int extraSpace)` Generate the new `Drawable` state for this view.
`InputConnection`	`onCreateInputConnection(EditorInfo outAttrs)` Create a new InputConnection for an InputMethod to interact with the view.
`void`	`onDetachedFromWindow()` This is called when the view is detached from a window.
`void`	`onDisplayHint(int hint)` Gives this view a hint about whether is displayed or not.
`boolean`	`onDragEvent(DragEvent event)` Handles drag events sent by the system following a call to `startDragAndDrop()`.
`void`	`onDraw(Canvas canvas)` Implement this to do your drawing.
`void`	`onDrawForeground(Canvas canvas)` Draw any foreground content for this view.
`final void`	`onDrawScrollBars(Canvas canvas)` Request the drawing of the horizontal and the vertical scrollbar.
`boolean`	`onFilterTouchEventForSecurity(MotionEvent event)` Filter the touch event to apply security policies.
`void`	`onFinishInflate()` Finalize inflating a view from XML.
`void`	`onFinishTemporaryDetach()` Called after `onStartTemporaryDetach()` when the container is done changing the view.
`void`	`onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect)` Called by the view system when the focus state of this view changes.
`boolean`	`onGenericMotionEvent(MotionEvent event)` Implement this method to handle generic motion events.
`void`	`onHoverChanged(boolean hovered)` Implement this method to handle hover state changes.
`boolean`	`onHoverEvent(MotionEvent event)` Implement this method to handle hover events.
`void`	`onInitializeAccessibilityEvent(AccessibilityEvent event)` Initializes an `AccessibilityEvent` with information about this View which is the event source.
`void`	`onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info)` Initializes an `AccessibilityNodeInfo` with information about this view.
`boolean`	`onKeyDown(int keyCode, KeyEvent event)` Default implementation of `KeyEvent.Callback#onKeyDown(int, KeyEvent)`: perform press of the view when `KeyEvent#KEYCODE_DPAD_CENTER` or `KeyEvent#KEYCODE_ENTER` is released, if the view is enabled and clickable.
`boolean`	`onKeyLongPress(int keyCode, KeyEvent event)` Default implementation of `KeyEvent.Callback#onKeyLongPress(int, KeyEvent)`: always returns false (doesn't handle the event).
`boolean`	`onKeyMultiple(int keyCode, int repeatCount, KeyEvent event)` Default implementation of `KeyEvent.Callback#onKeyMultiple(int, int, KeyEvent)`: always returns false (doesn't handle the event).
`boolean`	`onKeyPreIme(int keyCode, KeyEvent event)` Handle a key event before it is processed by any input method associated with the view hierarchy.
`boolean`	`onKeyShortcut(int keyCode, KeyEvent event)` Called on the focused view when a key shortcut event is not handled.
`boolean`	`onKeyUp(int keyCode, KeyEvent event)` Default implementation of `KeyEvent.Callback#onKeyUp(int, KeyEvent)`: perform clicking of the view when `KeyEvent#KEYCODE_DPAD_CENTER`, `KeyEvent#KEYCODE_ENTER` or `KeyEvent#KEYCODE_SPACE` is released.
`void`	`onLayout(boolean changed, int left, int top, int right, int bottom)` Called from layout when this view should assign a size and position to each of its children.
`void`	`onMeasure(int widthMeasureSpec, int heightMeasureSpec)` Measure the view and its content to determine the measured width and the measured height.
`void`	`onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY)` Called by `overScrollBy(int, int, int, int, int, int, int, int, boolean)` to respond to the results of an over-scroll operation.
`void`	`onPointerCaptureChange(boolean hasCapture)` Called when the window has just acquired or lost pointer capture.
`void`	`onPopulateAccessibilityEvent(AccessibilityEvent event)` Called from `dispatchPopulateAccessibilityEvent(android.view.accessibility.AccessibilityEvent)` giving a chance to this View to populate the accessibility event with its text content.
`void`	`onProvideAutofillStructure(ViewStructure structure, int flags)` Populates a `ViewStructure` to fullfil an autofill request.
`void`	`onProvideAutofillVirtualStructure(ViewStructure structure, int flags)` Populates a `ViewStructure` containing virtual children to fullfil an autofill request.
`void`	`onProvideContentCaptureStructure(ViewStructure structure, int flags)` Populates a `ViewStructure` for content capture.
`void`	`onProvideStructure(ViewStructure structure)` Called when assist structure is being retrieved from a view as part of `Activity.onProvideAssistData`.
`void`	`onProvideVirtualStructure(ViewStructure structure)` Called when assist structure is being retrieved from a view as part of `Activity.onProvideAssistData` to generate additional virtual structure under this view.
`PointerIcon`	`onResolvePointerIcon(MotionEvent event, int pointerIndex)` Returns the pointer icon for the motion event, or null if it doesn't specify the icon.
`void`	`onRestoreInstanceState(Parcelable state)` Hook allowing a view to re-apply a representation of its internal state that had previously been generated by `onSaveInstanceState()`.
`void`	`onRtlPropertiesChanged(int layoutDirection)` Called when any RTL property (layout direction or text direction or text alignment) has been changed.
`Parcelable`	`onSaveInstanceState()` Hook allowing a view to generate a representation of its internal state that can later be used to create a new instance with that same state.
`void`	`onScreenStateChanged(int screenState)` This method is called whenever the state of the screen this view is attached to changes.
`void`	`onScrollChanged(int l, int t, int oldl, int oldt)` This is called in response to an internal scroll in this view (i.e., the view scrolled its own contents).
`boolean`	`onSetAlpha(int alpha)` Invoked if there is a Transform that involves alpha.
`void`	`onSizeChanged(int w, int h, int oldw, int oldh)` This is called during layout when the size of this view has changed.
`void`	`onStartTemporaryDetach()` This is called when a container is going to temporarily detach a child, with `ViewGroup#detachViewFromParent(View)`.
`boolean`	`onTouchEvent(MotionEvent event)` Implement this method to handle touch screen motion events.
`boolean`	`onTrackballEvent(MotionEvent event)` Implement this method to handle trackball motion events.
`void`	`onVisibilityAggregated(boolean isVisible)` Called when the user-visibility of this View is potentially affected by a change to this view itself, an ancestor view or the window this view is attached to.
`void`	`onVisibilityChanged(View changedView, int visibility)` Called when the visibility of the view or an ancestor of the view has changed.
`void`	`onWindowFocusChanged(boolean hasWindowFocus)` Called when the window containing this view gains or loses focus.
`void`	`onWindowSystemUiVisibilityChanged(int visible)` This method is deprecated. SystemUiVisibility flags are deprecated. Use `WindowInsetsController` instead.
`void`	`onWindowVisibilityChanged(int visibility)` Called when the window containing has change its visibility (between `GONE`, `INVISIBLE`, and `VISIBLE`).
`boolean`	`overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX, int scrollRangeY, int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent)` Scroll the view with standard behavior for scrolling beyond the normal content boundaries.
`boolean`	`performAccessibilityAction(int action, Bundle arguments)` Performs the specified accessibility action on the view.
`boolean`	`performClick()` Call this view's OnClickListener, if it is defined.
`boolean`	`performContextClick(float x, float y)` Call this view's OnContextClickListener, if it is defined.
`boolean`	`performContextClick()` Call this view's OnContextClickListener, if it is defined.
`boolean`	`performHapticFeedback(int feedbackConstant)` BZZZTT!!1! Provide haptic feedback to the user for this view.
`boolean`	`performHapticFeedback(int feedbackConstant, int flags)` BZZZTT!!1! Like `performHapticFeedback(int)`, with additional options.
`boolean`	`performLongClick(float x, float y)` Calls this view's OnLongClickListener, if it is defined.
`boolean`	`performLongClick()` Calls this view's OnLongClickListener, if it is defined.
`void`	`playSoundEffect(int soundConstant)` Play a sound effect for this view.
`boolean`	`post(Runnable action)` Causes the Runnable to be added to the message queue.
`boolean`	`postDelayed(Runnable action, long delayMillis)` Causes the Runnable to be added to the message queue, to be run after the specified amount of time elapses.
`void`	`postInvalidate()` Cause an invalidate to happen on a subsequent cycle through the event loop.
`void`	`postInvalidate(int left, int top, int right, int bottom)` Cause an invalidate of the specified area to happen on a subsequent cycle through the event loop.
`void`	`postInvalidateDelayed(long delayMilliseconds, int left, int top, int right, int bottom)` Cause an invalidate of the specified area to happen on a subsequent cycle through the event loop.
`void`	`postInvalidateDelayed(long delayMilliseconds)` Cause an invalidate to happen on a subsequent cycle through the event loop.
`void`	`postInvalidateOnAnimation(int left, int top, int right, int bottom)` Cause an invalidate of the specified area to happen on the next animation time step, typically the next display frame.
`void`	`postInvalidateOnAnimation()` Cause an invalidate to happen on the next animation time step, typically the next display frame.
`void`	`postOnAnimation(Runnable action)` Causes the Runnable to execute on the next animation time step.
`void`	`postOnAnimationDelayed(Runnable action, long delayMillis)` Causes the Runnable to execute on the next animation time step, after the specified amount of time elapses.
`void`	`refreshDrawableState()` Call this to force a view to update its drawable state.
`void`	`releasePointerCapture()` Releases the pointer capture.
`boolean`	`removeCallbacks(Runnable action)` Removes the specified Runnable from the message queue.
`void`	`removeOnAttachStateChangeListener(View.OnAttachStateChangeListener listener)` Remove a listener for attach state changes.
`void`	`removeOnLayoutChangeListener(View.OnLayoutChangeListener listener)` Remove a listener for layout changes.
`void`	`removeOnUnhandledKeyEventListener(View.OnUnhandledKeyEventListener listener)` Removes a listener which will receive unhandled `KeyEvent`s.
`void`	`requestApplyInsets()` Ask that a new dispatch of `onApplyWindowInsets(android.view.WindowInsets)` be performed.
`void`	`requestFitSystemWindows()` This method is deprecated. Use `requestApplyInsets()` for newer platform versions.
`final boolean`	`requestFocus(int direction)` Call this to try to give focus to a specific view or to one of its descendants and give it a hint about what direction focus is heading.
`final boolean`	`requestFocus()` Call this to try to give focus to a specific view or to one of its descendants.
`boolean`	`requestFocus(int direction, Rect previouslyFocusedRect)` Call this to try to give focus to a specific view or to one of its descendants and give it hints about the direction and a specific rectangle that the focus is coming from.
`final boolean`	`requestFocusFromTouch()` Call this to try to give focus to a specific view or to one of its descendants.
`void`	`requestLayout()` Call this when something has changed which has invalidated the layout of this view.
`void`	`requestPointerCapture()` Requests pointer capture mode.
`boolean`	`requestRectangleOnScreen(Rect rectangle)` Request that a rectangle of this view be visible on the screen, scrolling if necessary just enough.
`boolean`	`requestRectangleOnScreen(Rect rectangle, boolean immediate)` Request that a rectangle of this view be visible on the screen, scrolling if necessary just enough.
`final void`	`requestUnbufferedDispatch(int source)` Request unbuffered dispatch of the given event source class to this view.
`final void`	`requestUnbufferedDispatch(MotionEvent event)` Request unbuffered dispatch of the given stream of MotionEvents to this View.
`final <T extends View> T`	`requireViewById(int id)` Finds the first descendant view with the given ID, the view itself if the ID matches `getId()`, or throws an IllegalArgumentException if the ID is invalid or there is no matching view in the hierarchy.
`void`	`resetPivot()` Clears any pivot previously set by a call to `setPivotX(float)` or `setPivotY(float)`.
`static int`	`resolveSize(int size, int measureSpec)` Version of `resolveSizeAndState(int, int, int)` returning only the `MEASURED_SIZE_MASK` bits of the result.
`static int`	`resolveSizeAndState(int size, int measureSpec, int childMeasuredState)` Utility to reconcile a desired size and state, with constraints imposed by a MeasureSpec.
`boolean`	`restoreDefaultFocus()` Gives focus to the default-focus view in the view hierarchy that has this view as a root.
`void`	`restoreHierarchyState(SparseArray<Parcelable> container)` Restore this view hierarchy's frozen state from the given container.
`final void`	`saveAttributeDataForStyleable(Context context, int[] styleable, AttributeSet attrs, TypedArray t, int defStyleAttr, int defStyleRes)` Stores debugging information about attributes.
`void`	`saveHierarchyState(SparseArray<Parcelable> container)` Store this view hierarchy's frozen state into the given container.
`void`	`scheduleDrawable(Drawable who, Runnable what, long when)` Schedules an action on a drawable to occur at a specified time.
`void`	`scrollBy(int x, int y)` Move the scrolled position of your view.
`void`	`scrollTo(int x, int y)` Set the scrolled position of your view.
`void`	`sendAccessibilityEvent(int eventType)` Sends an accessibility event of the given type.
`void`	`sendAccessibilityEventUnchecked(AccessibilityEvent event)` This method behaves exactly as `sendAccessibilityEvent(int)` but takes as an argument an empty `AccessibilityEvent` and does not perform a check whether accessibility is enabled.
`void`	`setAccessibilityDelegate(View.AccessibilityDelegate delegate)` Sets a delegate for implementing accessibility support via composition (as opposed to inheritance).
`void`	`setAccessibilityHeading(boolean isHeading)` Set if view is a heading for a section of content for accessibility purposes.
`void`	`setAccessibilityLiveRegion(int mode)` Sets the live region mode for this view.
`void`	`setAccessibilityPaneTitle(CharSequence accessibilityPaneTitle)` Visually distinct portion of a window with window-like semantics are considered panes for accessibility purposes.
`void`	`setAccessibilityTraversalAfter(int afterId)` Sets the id of a view after which this one is visited in accessibility traversal.
`void`	`setAccessibilityTraversalBefore(int beforeId)` Sets the id of a view before which this one is visited in accessibility traversal.
`void`	`setActivated(boolean activated)` Changes the activated state of this view.
`void`	`setAlpha(float alpha)` Sets the opacity of the view to a value from 0 to 1, where 0 means the view is completely transparent and 1 means the view is completely opaque.
`void`	`setAnimation(Animation animation)` Sets the next animation to play for this view.
`void`	`setAnimationMatrix(Matrix matrix)` Changes the transformation matrix on the view.
`void`	`setAutofillHints(String... autofillHints)` Sets the hints that help an `AutofillService` determine how to autofill the view with the user's data.
`void`	`setAutofillId(AutofillId id)` Sets the unique, logical identifier of this view in the activity, for autofill purposes.
`void`	`setBackground(Drawable background)` Set the background to a given Drawable, or remove the background.
`void`	`setBackgroundColor(int color)` Sets the background color for this view.
`void`	`setBackgroundDrawable(Drawable background)` This method is deprecated. use `setBackground(android.graphics.drawable.Drawable)` instead
`void`	`setBackgroundResource(int resid)` Set the background to a given resource.
`void`	`setBackgroundTintBlendMode(BlendMode blendMode)` Specifies the blending mode used to apply the tint specified by `setBackgroundTintList(android.content.res.ColorStateList)`} to the background drawable.
`void`	`setBackgroundTintList(ColorStateList tint)` Applies a tint to the background drawable.
`void`	`setBackgroundTintMode(PorterDuff.Mode tintMode)` Specifies the blending mode used to apply the tint specified by `setBackgroundTintList(android.content.res.ColorStateList)`} to the background drawable.
`final void`	`setBottom(int bottom)` Sets the bottom position of this view relative to its parent.
`void`	`setCameraDistance(float distance)` Sets the distance along the Z axis (orthogonal to the X/Y plane on which views are drawn) from the camera to this view.
`void`	`setClickable(boolean clickable)` Enables or disables click events for this view.
`void`	`setClipBounds(Rect clipBounds)` Sets a rectangular area on this view to which the view will be clipped when it is drawn.
`void`	`setClipToOutline(boolean clipToOutline)` Sets whether the View's Outline should be used to clip the contents of the View.
`void`	`setContentCaptureSession(ContentCaptureSession contentCaptureSession)` Sets the (optional) `ContentCaptureSession` associated with this view.
`void`	`setContentDescription(CharSequence contentDescription)` Sets the `View`'s content description.
`void`	`setContextClickable(boolean contextClickable)` Enables or disables context clicking for this view.
`void`	`setDefaultFocusHighlightEnabled(boolean defaultFocusHighlightEnabled)` Sets whether this View should use a default focus highlight when it gets focused but doesn't have `R.attr.state_focused` defined in its background.
`void`	`setDrawingCacheBackgroundColor(int color)` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`setDrawingCacheEnabled(boolean enabled)` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`setDrawingCacheQuality(int quality)` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`setDuplicateParentStateEnabled(boolean enabled)` Enables or disables the duplication of the parent's state into this view.
`void`	`setElevation(float elevation)` Sets the base elevation of this view, in pixels.
`void`	`setEnabled(boolean enabled)` Set the enabled state of this view.
`void`	`setFadingEdgeLength(int length)` Set the size of the faded edge used to indicate that more content in this view is available.
`void`	`setFilterTouchesWhenObscured(boolean enabled)` Sets whether the framework should discard touches when the view's window is obscured by another visible window.
`void`	`setFitsSystemWindows(boolean fitSystemWindows)` Sets whether or not this view should account for system screen decorations such as the status bar and inset its content; that is, controlling whether the default implementation of `fitSystemWindows(android.graphics.Rect)` will be executed.
`void`	`setFocusable(boolean focusable)` Set whether this view can receive the focus.
`void`	`setFocusable(int focusable)` Sets whether this view can receive focus.
`void`	`setFocusableInTouchMode(boolean focusableInTouchMode)` Set whether this view can receive focus while in touch mode.
`void`	`setFocusedByDefault(boolean isFocusedByDefault)` Sets whether this View should receive focus when the focus is restored for the view hierarchy containing this view.
`void`	`setForceDarkAllowed(boolean allow)` Sets whether or not to allow force dark to apply to this view.
`void`	`setForeground(Drawable foreground)` Supply a Drawable that is to be rendered on top of all of the content in the view.
`void`	`setForegroundGravity(int gravity)` Describes how the foreground is positioned.
`void`	`setForegroundTintBlendMode(BlendMode blendMode)` Specifies the blending mode used to apply the tint specified by `setForegroundTintList(android.content.res.ColorStateList)`} to the background drawable.
`void`	`setForegroundTintList(ColorStateList tint)` Applies a tint to the foreground drawable.
`void`	`setForegroundTintMode(PorterDuff.Mode tintMode)` Specifies the blending mode used to apply the tint specified by `setForegroundTintList(android.content.res.ColorStateList)`} to the background drawable.
`void`	`setHapticFeedbackEnabled(boolean hapticFeedbackEnabled)` Set whether this view should have haptic feedback for events such as long presses.
`void`	`setHasTransientState(boolean hasTransientState)` Set whether this view is currently tracking transient state that the framework should attempt to preserve when possible.
`void`	`setHorizontalFadingEdgeEnabled(boolean horizontalFadingEdgeEnabled)` Define whether the horizontal edges should be faded when this view is scrolled horizontally.
`void`	`setHorizontalScrollBarEnabled(boolean horizontalScrollBarEnabled)` Define whether the horizontal scrollbar should be drawn or not.
`void`	`setHorizontalScrollbarThumbDrawable(Drawable drawable)` Defines the horizontal thumb drawable
`void`	`setHorizontalScrollbarTrackDrawable(Drawable drawable)` Defines the horizontal track drawable
`void`	`setHovered(boolean hovered)` Sets whether the view is currently hovered.
`void`	`setId(int id)` Sets the identifier for this view.
`void`	`setImportantForAccessibility(int mode)` Sets how to determine whether this view is important for accessibility which is if it fires accessibility events and if it is reported to accessibility services that query the screen.
`void`	`setImportantForAutofill(int mode)` Sets the mode for determining whether this view is considered important for autofill.
`void`	`setImportantForContentCapture(int mode)` Sets the mode for determining whether this view is considered important for content capture.
`void`	`setKeepScreenOn(boolean keepScreenOn)` Controls whether the screen should remain on, modifying the value of `KEEP_SCREEN_ON`.
`void`	`setKeyboardNavigationCluster(boolean isCluster)` Set whether this view is a root of a keyboard navigation cluster.
`void`	`setLabelFor(int id)` Sets the id of a view for which this view serves as a label for accessibility purposes.
`void`	`setLayerPaint(Paint paint)` Updates the `Paint` object used with the current layer (used only if the current layer type is not set to `LAYER_TYPE_NONE`).
`void`	`setLayerType(int layerType, Paint paint)` Specifies the type of layer backing this view.
`void`	`setLayoutDirection(int layoutDirection)` Set the layout direction for this view.
`void`	`setLayoutParams(ViewGroup.LayoutParams params)` Set the layout parameters associated with this view.
`final void`	`setLeft(int left)` Sets the left position of this view relative to its parent.
`final void`	`setLeftTopRightBottom(int left, int top, int right, int bottom)` Assign a size and position to this view.
`void`	`setLongClickable(boolean longClickable)` Enables or disables long click events for this view.
`final void`	`setMeasuredDimension(int measuredWidth, int measuredHeight)` This method must be called by `onMeasure(int, int)` to store the measured width and measured height.
`void`	`setMinimumHeight(int minHeight)` Sets the minimum height of the view.
`void`	`setMinimumWidth(int minWidth)` Sets the minimum width of the view.
`void`	`setNestedScrollingEnabled(boolean enabled)` Enable or disable nested scrolling for this view.
`void`	`setNextClusterForwardId(int nextClusterForwardId)` Sets the id of the view to use as the root of the next keyboard navigation cluster.
`void`	`setNextFocusDownId(int nextFocusDownId)` Sets the id of the view to use when the next focus is `FOCUS_DOWN`.
`void`	`setNextFocusForwardId(int nextFocusForwardId)` Sets the id of the view to use when the next focus is `FOCUS_FORWARD`.
`void`	`setNextFocusLeftId(int nextFocusLeftId)` Sets the id of the view to use when the next focus is `FOCUS_LEFT`.
`void`	`setNextFocusRightId(int nextFocusRightId)` Sets the id of the view to use when the next focus is `FOCUS_RIGHT`.
`void`	`setNextFocusUpId(int nextFocusUpId)` Sets the id of the view to use when the next focus is `FOCUS_UP`.
`void`	`setOnApplyWindowInsetsListener(View.OnApplyWindowInsetsListener listener)` Set an `OnApplyWindowInsetsListener` to take over the policy for applying window insets to this view.
`void`	`setOnCapturedPointerListener(View.OnCapturedPointerListener l)` Set a listener to receive callbacks when the pointer capture state of a view changes.
`void`	`setOnClickListener(View.OnClickListener l)` Register a callback to be invoked when this view is clicked.
`void`	`setOnContextClickListener(View.OnContextClickListener l)` Register a callback to be invoked when this view is context clicked.
`void`	`setOnCreateContextMenuListener(View.OnCreateContextMenuListener l)` Register a callback to be invoked when the context menu for this view is being built.
`void`	`setOnDragListener(View.OnDragListener l)` Register a drag event listener callback object for this View.
`void`	`setOnFocusChangeListener(View.OnFocusChangeListener l)` Register a callback to be invoked when focus of this view changed.
`void`	`setOnGenericMotionListener(View.OnGenericMotionListener l)` Register a callback to be invoked when a generic motion event is sent to this view.
`void`	`setOnHoverListener(View.OnHoverListener l)` Register a callback to be invoked when a hover event is sent to this view.
`void`	`setOnKeyListener(View.OnKeyListener l)` Register a callback to be invoked when a hardware key is pressed in this view.
`void`	`setOnLongClickListener(View.OnLongClickListener l)` Register a callback to be invoked when this view is clicked and held.
`void`	`setOnScrollChangeListener(View.OnScrollChangeListener l)` Register a callback to be invoked when the scroll X or Y positions of this view change.
`void`	`setOnSystemUiVisibilityChangeListener(View.OnSystemUiVisibilityChangeListener l)` This method is deprecated. Use `WindowInsets#isVisible(int)` to find out about system bar visibilities by setting a `OnApplyWindowInsetsListener` on this view.
`void`	`setOnTouchListener(View.OnTouchListener l)` Register a callback to be invoked when a touch event is sent to this view.
`void`	`setOutlineAmbientShadowColor(int color)` Sets the color of the ambient shadow that is drawn when the view has a positive Z or elevation value.
`void`	`setOutlineProvider(ViewOutlineProvider provider)` Sets the `ViewOutlineProvider` of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping.
`void`	`setOutlineSpotShadowColor(int color)` Sets the color of the spot shadow that is drawn when the view has a positive Z or elevation value.
`void`	`setOverScrollMode(int overScrollMode)` Set the over-scroll mode for this view.
`void`	`setPadding(int left, int top, int right, int bottom)` Sets the padding.
`void`	`setPaddingRelative(int start, int top, int end, int bottom)` Sets the relative padding.
`void`	`setPivotX(float pivotX)` Sets the x location of the point around which the view is `rotated` and `scaled`.
`void`	`setPivotY(float pivotY)` Sets the y location of the point around which the view is `rotated` and `scaled`.
`void`	`setPointerIcon(PointerIcon pointerIcon)` Set the pointer icon for the current view.
`void`	`setPressed(boolean pressed)` Sets the pressed state for this view.
`final void`	`setRevealOnFocusHint(boolean revealOnFocus)` Sets this view's preference for reveal behavior when it gains focus.
`final void`	`setRight(int right)` Sets the right position of this view relative to its parent.
`void`	`setRotation(float rotation)` Sets the degrees that the view is rotated around the pivot point.
`void`	`setRotationX(float rotationX)` Sets the degrees that the view is rotated around the horizontal axis through the pivot point.
`void`	`setRotationY(float rotationY)` Sets the degrees that the view is rotated around the vertical axis through the pivot point.
`void`	`setSaveEnabled(boolean enabled)` Controls whether the saving of this view's state is enabled (that is, whether its `onSaveInstanceState()` method will be called).
`void`	`setSaveFromParentEnabled(boolean enabled)` Controls whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent.
`void`	`setScaleX(float scaleX)` Sets the amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width.
`void`	`setScaleY(float scaleY)` Sets the amount that the view is scaled in Y around the pivot point, as a proportion of the view's unscaled width.
`void`	`setScreenReaderFocusable(boolean screenReaderFocusable)` Sets whether this View should be a focusable element for screen readers and include non-focusable Views from its subtree when providing feedback.
`void`	`setScrollBarDefaultDelayBeforeFade(int scrollBarDefaultDelayBeforeFade)` Define the delay before scrollbars fade.
`void`	`setScrollBarFadeDuration(int scrollBarFadeDuration)` Define the scrollbar fade duration.
`void`	`setScrollBarSize(int scrollBarSize)` Define the scrollbar size.
`void`	`setScrollBarStyle(int style)` Specify the style of the scrollbars.
`void`	`setScrollContainer(boolean isScrollContainer)` Change whether this view is one of the set of scrollable containers in its window.
`void`	`setScrollIndicators(int indicators, int mask)` Sets the state of the scroll indicators specified by the mask.
`void`	`setScrollIndicators(int indicators)` Sets the state of all scroll indicators.
`void`	`setScrollX(int value)` Set the horizontal scrolled position of your view.
`void`	`setScrollY(int value)` Set the vertical scrolled position of your view.
`void`	`setScrollbarFadingEnabled(boolean fadeScrollbars)` Define whether scrollbars will fade when the view is not scrolling.
`void`	`setSelected(boolean selected)` Changes the selection state of this view.
`void`	`setSoundEffectsEnabled(boolean soundEffectsEnabled)` Set whether this view should have sound effects enabled for events such as clicking and touching.
`void`	`setStateDescription(CharSequence stateDescription)` Sets the `View`'s state description.
`void`	`setStateListAnimator(StateListAnimator stateListAnimator)` Attaches the provided StateListAnimator to this View.
`void`	`setSystemGestureExclusionRects(List<Rect> rects)` Sets a list of areas within this view's post-layout coordinate space where the system should not intercept touch or other pointing device gestures.
`void`	`setSystemUiVisibility(int visibility)` This method is deprecated. SystemUiVisibility flags are deprecated. Use `WindowInsetsController` instead.
`void`	`setTag(int key, Object tag)` Sets a tag associated with this view and a key.
`void`	`setTag(Object tag)` Sets the tag associated with this view.
`void`	`setTextAlignment(int textAlignment)` Set the text alignment.
`void`	`setTextDirection(int textDirection)` Set the text direction.
`void`	`setTooltipText(CharSequence tooltipText)` Sets the tooltip text which will be displayed in a small popup next to the view.
`final void`	`setTop(int top)` Sets the top position of this view relative to its parent.
`void`	`setTouchDelegate(TouchDelegate delegate)` Sets the TouchDelegate for this View.
`void`	`setTransitionAlpha(float alpha)` This property is intended only for use by the Fade transition, which animates it to produce a visual translucency that does not side-effect (or get affected by) the real alpha property.
`final void`	`setTransitionName(String transitionName)` Sets the name of the View to be used to identify Views in Transitions.
`void`	`setTransitionVisibility(int visibility)` Changes the visibility of this View without triggering any other changes.
`void`	`setTranslationX(float translationX)` Sets the horizontal location of this view relative to its `left` position.
`void`	`setTranslationY(float translationY)` Sets the vertical location of this view relative to its `top` position.
`void`	`setTranslationZ(float translationZ)` Sets the depth location of this view relative to its `elevation`.
`void`	`setVerticalFadingEdgeEnabled(boolean verticalFadingEdgeEnabled)` Define whether the vertical edges should be faded when this view is scrolled vertically.
`void`	`setVerticalScrollBarEnabled(boolean verticalScrollBarEnabled)` Define whether the vertical scrollbar should be drawn or not.
`void`	`setVerticalScrollbarPosition(int position)` Set the position of the vertical scroll bar.
`void`	`setVerticalScrollbarThumbDrawable(Drawable drawable)` Defines the vertical scrollbar thumb drawable
`void`	`setVerticalScrollbarTrackDrawable(Drawable drawable)` Defines the vertical scrollbar track drawable
`void`	`setVisibility(int visibility)` Set the visibility state of this view.
`void`	`setWillNotCacheDrawing(boolean willNotCacheDrawing)` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`void`	`setWillNotDraw(boolean willNotDraw)` If this view doesn't do any drawing on its own, set this flag to allow further optimizations.
`void`	`setWindowInsetsAnimationCallback(WindowInsetsAnimation.Callback callback)` Sets a `WindowInsetsAnimation.Callback` to be notified about animations of windows that cause insets.
`void`	`setX(float x)` Sets the visual x position of this view, in pixels.
`void`	`setY(float y)` Sets the visual y position of this view, in pixels.
`void`	`setZ(float z)` Sets the visual z position of this view, in pixels.
`boolean`	`showContextMenu()` Shows the context menu for this view.
`boolean`	`showContextMenu(float x, float y)` Shows the context menu for this view anchored to the specified view-relative coordinate.
`ActionMode`	`startActionMode(ActionMode.Callback callback, int type)` Start an action mode with the given type.
`ActionMode`	`startActionMode(ActionMode.Callback callback)` Start an action mode with the default type `ActionMode#TYPE_PRIMARY`.
`void`	`startAnimation(Animation animation)` Start the specified animation now.
`final boolean`	`startDrag(ClipData data, View.DragShadowBuilder shadowBuilder, Object myLocalState, int flags)` This method is deprecated. Use `startDragAndDrop()` for newer platform versions.
`final boolean`	`startDragAndDrop(ClipData data, View.DragShadowBuilder shadowBuilder, Object myLocalState, int flags)` Starts a drag and drop operation.
`boolean`	`startNestedScroll(int axes)` Begin a nestable scroll operation along the given axes.
`void`	`stopNestedScroll()` Stop a nested scroll in progress.
`String`	`toString()` Returns a string representation of the object.
`void`	`transformMatrixToGlobal(Matrix matrix)` Modifies the input matrix such that it maps view-local coordinates to on-screen coordinates.
`void`	`transformMatrixToLocal(Matrix matrix)` Modifies the input matrix such that it maps on-screen coordinates to view-local coordinates.
`void`	`unscheduleDrawable(Drawable who, Runnable what)` Cancels a scheduled action on a drawable.
`void`	`unscheduleDrawable(Drawable who)` Unschedule any events associated with the given Drawable.
`final void`	`updateDragShadow(View.DragShadowBuilder shadowBuilder)` Updates the drag shadow for the ongoing drag and drop operation.
`boolean`	`verifyDrawable(Drawable who)` If your view subclass is displaying its own Drawable objects, it should override this function and return true for any Drawable it is displaying.
`boolean`	`willNotCacheDrawing()` This method is deprecated. The view drawing cache was largely made obsolete with the introduction of hardware-accelerated rendering in API 11. With hardware-acceleration, intermediate cache layers are largely unnecessary and can easily result in a net loss in performance due to the cost of creating and updating the layer. In the rare cases where caching layers are useful, such as for alpha animations, `setLayerType(int, android.graphics.Paint)` handles this with hardware rendering. For software-rendered snapshots of a small part of the View hierarchy or individual Views it is recommended to create a `Canvas` from either a `Bitmap` or `Picture` and call `draw(android.graphics.Canvas)` on the View. However these software-rendered usages are discouraged and have compatibility issues with hardware-only rendering features such as `Config.HARDWARE` bitmaps, real-time shadows, and outline clipping. For screenshots of the UI for feedback reports or unit testing the `PixelCopy` API is recommended.
`boolean`	`willNotDraw()` Returns whether or not this View draws on its own.

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


        
          android.view.ViewParent

`abstract void`	`bringChildToFront(View child)` Change the z order of the child so it's on top of all other children.
`abstract boolean`	`canResolveLayoutDirection()` Tells if this view parent can resolve the layout direction.
`abstract boolean`	`canResolveTextAlignment()` Tells if this view parent can resolve the text alignment.
`abstract boolean`	`canResolveTextDirection()` Tells if this view parent can resolve the text direction.
`abstract void`	`childDrawableStateChanged(View child)` This method is called on the parent when a child's drawable state has changed.
`abstract void`	`childHasTransientStateChanged(View child, boolean hasTransientState)` Called when a child view now has or no longer is tracking transient state.
`abstract void`	`clearChildFocus(View child)` Called when a child of this parent is giving up focus
`abstract void`	`createContextMenu(ContextMenu menu)` Have the parent populate the specified context menu if it has anything to add (and then recurse on its parent).
`abstract View`	`focusSearch(View v, int direction)` Find the nearest view in the specified direction that wants to take focus
`abstract void`	`focusableViewAvailable(View v)` Tells the parent that a new focusable view has become available.
`abstract boolean`	`getChildVisibleRect(View child, Rect r, Point offset)` Compute the visible part of a rectangular region defined in terms of a child view's coordinates.
`abstract int`	`getLayoutDirection()` Return this view parent layout direction.
`abstract ViewParent`	`getParent()` Returns the parent if it exists, or null.
`abstract ViewParent`	`getParentForAccessibility()` Gets the parent of a given View for accessibility.
`abstract int`	`getTextAlignment()` Return this view parent text alignment.
`abstract int`	`getTextDirection()` Return this view parent text direction.
`abstract void`	`invalidateChild(View child, Rect r)` This method is deprecated. Use `onDescendantInvalidated(android.view.View, android.view.View)` instead.
`abstract ViewParent`	`invalidateChildInParent(int[] location, Rect r)` This method is deprecated. Use `onDescendantInvalidated(android.view.View, android.view.View)` instead.
`abstract boolean`	`isLayoutDirectionResolved()` Tells if this view parent layout direction is resolved.
`abstract boolean`	`isLayoutRequested()` Indicates whether layout was requested on this view parent.
`abstract boolean`	`isTextAlignmentResolved()` Tells if this view parent text alignment is resolved.
`abstract boolean`	`isTextDirectionResolved()` Tells if this view parent text direction is resolved.
`abstract View`	`keyboardNavigationClusterSearch(View currentCluster, int direction)` Find the nearest keyboard navigation cluster in the specified direction.
`abstract void`	`notifySubtreeAccessibilityStateChanged(View child, View source, int changeType)` Notifies a view parent that the accessibility state of one of its descendants has changed and that the structure of the subtree is different.
`default void`	`onDescendantInvalidated(View child, View target)` The target View has been invalidated, or has had a drawing property changed that requires the hierarchy to re-render.
`abstract boolean`	`onNestedFling(View target, float velocityX, float velocityY, boolean consumed)` Request a fling from a nested scroll.
`abstract boolean`	`onNestedPreFling(View target, float velocityX, float velocityY)` React to a nested fling before the target view consumes it.
`abstract boolean`	`onNestedPrePerformAccessibilityAction(View target, int action, Bundle arguments)` React to an accessibility action delegated by a target descendant view before the target processes it.
`abstract void`	`onNestedPreScroll(View target, int dx, int dy, int[] consumed)` React to a nested scroll in progress before the target view consumes a portion of the scroll.
`abstract void`	`onNestedScroll(View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed)` React to a nested scroll in progress.
`abstract void`	`onNestedScrollAccepted(View child, View target, int nestedScrollAxes)` React to the successful claiming of a nested scroll operation.
`abstract boolean`	`onStartNestedScroll(View child, View target, int nestedScrollAxes)` React to a descendant view initiating a nestable scroll operation, claiming the nested scroll operation if appropriate.
`abstract void`	`onStopNestedScroll(View target)` React to a nested scroll operation ending.
`abstract void`	`recomputeViewAttributes(View child)` Tell view hierarchy that the global view attributes need to be re-evaluated.
`abstract void`	`requestChildFocus(View child, View focused)` Called when a child of this parent wants focus
`abstract boolean`	`requestChildRectangleOnScreen(View child, Rect rectangle, boolean immediate)` Called when a child of this group wants a particular rectangle to be positioned onto the screen.
`abstract void`	`requestDisallowInterceptTouchEvent(boolean disallowIntercept)` Called when a child does not want this parent and its ancestors to intercept touch events with `ViewGroup#onInterceptTouchEvent(MotionEvent)`.
`abstract void`	`requestFitSystemWindows()` Ask that a new dispatch of `View#fitSystemWindows(Rect)` be performed.
`abstract void`	`requestLayout()` Called when something has changed which has invalidated the layout of a child of this view parent.
`abstract boolean`	`requestSendAccessibilityEvent(View child, AccessibilityEvent event)` Called by a child to request from its parent to send an `AccessibilityEvent`.
`abstract void`	`requestTransparentRegion(View child)` Called when a child wants the view hierarchy to gather and report transparent regions to the window compositor.
`abstract boolean`	`showContextMenuForChild(View originalView)` Shows the context menu for the specified view or its ancestors.
`abstract boolean`	`showContextMenuForChild(View originalView, float x, float y)` Shows the context menu for the specified view or its ancestors anchored to the specified view-relative coordinate.
`abstract ActionMode`	`startActionModeForChild(View originalView, ActionMode.Callback callback, int type)` Start an action mode of a specific type for the specified view.
`abstract ActionMode`	`startActionModeForChild(View originalView, ActionMode.Callback callback)` Start an action mode for the specified view with the default type `ActionMode#TYPE_PRIMARY`.

From interface


        
          android.view.ViewManager

`abstract void`	`addView(View view, ViewGroup.LayoutParams params)` Assign the passed LayoutParams to the passed View and add the view to the window.
`abstract void`	`removeView(View view)`
`abstract void`	`updateViewLayout(View view, ViewGroup.LayoutParams params)`

From interface


        
          android.graphics.drawable.Drawable.Callback

`abstract void`	`invalidateDrawable(Drawable who)` Called when the drawable needs to be redrawn.
`abstract void`	`scheduleDrawable(Drawable who, Runnable what, long when)` A Drawable can call this to schedule the next frame of its animation.
`abstract void`	`unscheduleDrawable(Drawable who, Runnable what)` A Drawable can call this to unschedule an action previously scheduled with `scheduleDrawable(Drawable, Runnable, long)`.

From interface


        
          android.view.KeyEvent.Callback

`abstract boolean`	`onKeyDown(int keyCode, KeyEvent event)` Called when a key down event has occurred.
`abstract boolean`	`onKeyLongPress(int keyCode, KeyEvent event)` Called when a long press has occurred.
`abstract boolean`	`onKeyMultiple(int keyCode, int count, KeyEvent event)` Called when a user's interaction with an analog control, such as flinging a trackball, generates simulated down/up events for the same key multiple times in quick succession.
`abstract boolean`	`onKeyUp(int keyCode, KeyEvent event)` Called when a key up event has occurred.

From interface


        
          android.view.accessibility.AccessibilityEventSource

`abstract void`	`sendAccessibilityEvent(int eventType)` Handles the request for sending an `AccessibilityEvent` given the event type.
`abstract void`	`sendAccessibilityEventUnchecked(AccessibilityEvent event)` Handles the request for sending an `AccessibilityEvent`.

XML attributes

android:fillViewport

Defines whether the scrollview should stretch its content to fill the viewport.

May be a boolean value, such as "true" or "false".

Related methods:

setFillViewport(boolean)

Public constructors

ScrollView

public ScrollView (Context context)

Parameters
`context`	`Context`

ScrollView

public ScrollView (Context context, 
                AttributeSet attrs)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`

ScrollView

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

Parameters
`context`	`Context`
`attrs`	`AttributeSet`
`defStyleAttr`	`int`

ScrollView

public ScrollView (Context context, 
                AttributeSet attrs, 
                int defStyleAttr, 
                int defStyleRes)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`
`defStyleAttr`	`int`
`defStyleRes`	`int`

Public methods

addView

public void addView (View child, 
                int index)

Adds a child view. If no layout parameters are already set on the child, the default parameters for this ViewGroup are set on the child.

Note: do not invoke this method from View.draw(android.graphics.Canvas), View.onDraw(android.graphics.Canvas), dispatchDraw(android.graphics.Canvas) or any related method.

Parameters
`child`	`View`: the child view to add
`index`	`int`: the position at which to add the child

addView

public void addView (View child, 
                ViewGroup.LayoutParams params)

Adds a child view with the specified layout parameters.

Note: do not invoke this method from View.draw(android.graphics.Canvas), View.onDraw(android.graphics.Canvas), dispatchDraw(android.graphics.Canvas) or any related method.

Parameters
`child`	`View`: the child view to add
`params`	`ViewGroup.LayoutParams`: the layout parameters to set on the child

addView

public void addView (View child, 
                int index, 
                ViewGroup.LayoutParams params)

Adds a child view with the specified layout parameters.

Note: do not invoke this method from View.draw(android.graphics.Canvas), View.onDraw(android.graphics.Canvas), dispatchDraw(android.graphics.Canvas) or any related method.

Parameters
`child`	`View`: the child view to add
`index`	`int`: the position at which to add the child or -1 to add last
`params`	`ViewGroup.LayoutParams`: the layout parameters to set on the child

addView

public void addView (View child)

Adds a child view. If no layout parameters are already set on the child, the default parameters for this ViewGroup are set on the child.

Note: do not invoke this method from View.draw(android.graphics.Canvas), View.onDraw(android.graphics.Canvas), dispatchDraw(android.graphics.Canvas) or any related method.

Parameters
`child`	`View`: the child view to add

arrowScroll

public boolean arrowScroll (int direction)

Handle scrolling in response to an up or down arrow click.

Parameters
`direction`	`int`: The direction corresponding to the arrow key that was pressed

Returns
`boolean`	True if we consumed the event, false otherwise

computeScroll

public void computeScroll ()

Called by a parent to request that a child update its values for mScrollX and mScrollY if necessary. This will typically be done if the child is animating a scroll using a Scroller object.

dispatchKeyEvent

public boolean dispatchKeyEvent (KeyEvent event)

Dispatch a key event to the next view on the focus path. This path runs from the top of the view tree down to the currently focused view. If this view has focus, it will dispatch to itself. Otherwise it will dispatch the next node down the focus path. This method also fires any key listeners.

Parameters
`event`	`KeyEvent`: The key event to be dispatched.

Returns
`boolean`	True if the event was handled, false otherwise.

draw

public void draw (Canvas canvas)

Manually render this view (and all of its children) to the given Canvas. The view must have already done a full layout before this function is called. When implementing a view, implement onDraw(android.graphics.Canvas) instead of overriding this method. If you do need to override this method, call the superclass version.
If you override this method you must call through to the superclass implementation.

Parameters
`canvas`	`Canvas`: The Canvas to which the View is rendered.

executeKeyEvent

public boolean executeKeyEvent (KeyEvent event)

You can call this function yourself to have the scroll view perform scrolling from a key event, just as if the event had been dispatched to it by the view hierarchy.

Parameters
`event`	`KeyEvent`: The key event to execute.

Returns
`boolean`	Return true if the event was handled, else false.

fling

public void fling (int velocityY)

Fling the scroll view

Parameters
`velocityY`	`int`: The initial velocity in the Y direction. Positive numbers mean that the finger/cursor is moving down the screen, which means we want to scroll towards the top.

fullScroll

public boolean fullScroll (int direction)

Handles scrolling in response to a "home/end" shortcut press. This method will scroll the view to the top or bottom and give the focus to the topmost/bottommost component in the new visible area. If no component is a good candidate for focus, this scrollview reclaims the focus.

Parameters
`direction`	`int`: the scroll direction: `View.FOCUS_UP` to go the top of the view or `View.FOCUS_DOWN` to go the bottom

Returns
`boolean`	true if the key event is consumed by this method, false otherwise

getAccessibilityClassName

public CharSequence getAccessibilityClassName ()

Return the class name of this object to be used for accessibility purposes. Subclasses should only override this if they are implementing something that should be seen as a completely new class of view when used by accessibility, unrelated to the class it is deriving from. This is used to fill in AccessibilityNodeInfo#setClassName.

Returns
`CharSequence`

getBottomEdgeEffectColor

public int getBottomEdgeEffectColor ()

Returns the bottom edge effect color.

Returns
`int`	The bottom edge effect color.

See also:

getMaxScrollAmount

public int getMaxScrollAmount ()

Returns
`int`	The maximum amount this scroll view will scroll in response to an arrow event.

getTopEdgeEffectColor

public int getTopEdgeEffectColor ()

Returns the top edge effect color.

Returns
`int`	The top edge effect color.

See also:

isFillViewport

public boolean isFillViewport ()

Indicates whether this ScrollView's content is stretched to fill the viewport.

Related XML Attributes:

android:fillViewport

Returns
`boolean`	True if the content fills the viewport, false otherwise.

isSmoothScrollingEnabled

public boolean isSmoothScrollingEnabled ()

Returns
`boolean`	Whether arrow scrolling will animate its transition.

onGenericMotionEvent

public boolean onGenericMotionEvent (MotionEvent event)

Implement this method to handle generic motion events.

Generic motion events describe joystick movements, mouse hovers, track pad touches, scroll wheel movements and other input events. The MotionEvent#getSource() of the motion event specifies the class of input that was received. Implementations of this method must examine the bits in the source before processing the event. The following code example shows how this is done.

Generic motion events with source class InputDevice#SOURCE_CLASS_POINTER are delivered to the view under the pointer. All other generic motion events are delivered to the focused view.

 public boolean onGenericMotionEvent(MotionEvent event) {
     if (event.isFromSource(InputDevice.SOURCE_CLASS_JOYSTICK)) {
         if (event.getAction() == MotionEvent.ACTION_MOVE) {
             // process the joystick movement...
             return true;
         }
     }
     if (event.isFromSource(InputDevice.SOURCE_CLASS_POINTER)) {
         switch (event.getAction()) {
             case MotionEvent.ACTION_HOVER_MOVE:
                 // process the mouse hover movement...
                 return true;
             case MotionEvent.ACTION_SCROLL:
                 // process the scroll wheel movement...
                 return true;
         }
     }
     return super.onGenericMotionEvent(event);
 }

Parameters
`event`	`MotionEvent`: The generic motion event being processed.

Returns
`boolean`	True if the event was handled, false otherwise.

onInterceptTouchEvent

public boolean onInterceptTouchEvent (MotionEvent ev)

Implement this method to intercept all touch screen motion events. This allows you to watch events as they are dispatched to your children, and take ownership of the current gesture at any point.

Using this function takes some care, as it has a fairly complicated interaction with View#onTouchEvent(MotionEvent), and using it requires implementing that method as well as this one in the correct way. Events will be received in the following order:

You will receive the down event here.
The down event will be handled either by a child of this view group, or given to your own onTouchEvent() method to handle; this means you should implement onTouchEvent() to return true, so you will continue to see the rest of the gesture (instead of looking for a parent view to handle it). Also, by returning true from onTouchEvent(), you will not receive any following events in onInterceptTouchEvent() and all touch processing must happen in onTouchEvent() like normal.
For as long as you return false from this function, each following event (up to and including the final up) will be delivered first here and then to the target's onTouchEvent().
If you return true from here, you will not receive any following events: the target view will receive the same event but with the action MotionEvent#ACTION_CANCEL, and all further events will be delivered to your onTouchEvent() method and no longer appear here.

Parameters
`ev`	`MotionEvent`: The motion event being dispatched down the hierarchy.

Returns
`boolean`	Return true to steal motion events from the children and have them dispatched to this ViewGroup through onTouchEvent(). The current target will receive an ACTION_CANCEL event, and no further messages will be delivered here.

onNestedFling

public boolean onNestedFling (View target, 
                float velocityX, 
                float velocityY, 
                boolean consumed)

Request a fling from a nested scroll.

This method signifies that a nested scrolling child has detected suitable conditions for a fling. Generally this means that a touch scroll has ended with a VelocityTracker in the direction of scrolling that meets or exceeds the ViewConfiguration#getScaledMinimumFlingVelocity() along a scrollable axis.

If a nested scrolling child view would normally fling but it is at the edge of its own content, it can use this method to delegate the fling to its nested scrolling parent instead. The parent may optionally consume the fling or observe a child fling.

Parameters
`target`	`View`: View that initiated the nested scroll
`velocityX`	`float`: Horizontal velocity in pixels per second
`velocityY`	`float`: Vertical velocity in pixels per second
`consumed`	`boolean`: true if the child consumed the fling, false otherwise

Returns
`boolean`	true if this parent consumed or otherwise reacted to the fling

onNestedScroll

public void onNestedScroll (View target, 
                int dxConsumed, 
                int dyConsumed, 
                int dxUnconsumed, 
                int dyUnconsumed)

React to a nested scroll in progress.

This method will be called when the ViewParent's current nested scrolling child view dispatches a nested scroll event. To receive calls to this method the ViewParent must have previously returned true for a call to onStartNestedScroll(android.view.View, android.view.View, int).

Both the consumed and unconsumed portions of the scroll distance are reported to the ViewParent. An implementation may choose to use the consumed portion to match or chase scroll position of multiple child elements, for example. The unconsumed portion may be used to allow continuous dragging of multiple scrolling or draggable elements, such as scrolling a list within a vertical drawer where the drawer begins dragging once the edge of inner scrolling content is reached.

Parameters
`target`	`View`: The descendent view controlling the nested scroll
`dxConsumed`	`int`: Horizontal scroll distance in pixels already consumed by target
`dyConsumed`	`int`: Vertical scroll distance in pixels already consumed by target
`dxUnconsumed`	`int`: Horizontal scroll distance in pixels not consumed by target
`dyUnconsumed`	`int`: Vertical scroll distance in pixels not consumed by target

onNestedScrollAccepted

public void onNestedScrollAccepted (View child, 
                View target, 
                int axes)

React to the successful claiming of a nested scroll operation.

This method will be called after onStartNestedScroll returns true. It offers an opportunity for the view and its superclasses to perform initial configuration for the nested scroll. Implementations of this method should always call their superclass's implementation of this method if one is present.

Parameters
`child`	`View`: Direct child of this ViewParent containing target
`target`	`View`: View that initiated the nested scroll
`axes`	`int`: Flags consisting of `View#SCROLL_AXIS_HORIZONTAL`, `View#SCROLL_AXIS_VERTICAL` or both

onStartNestedScroll

public boolean onStartNestedScroll (View child, 
                View target, 
                int nestedScrollAxes)

React to a descendant view initiating a nestable scroll operation, claiming the nested scroll operation if appropriate.

This method will be called in response to a descendant view invoking View#startNestedScroll(int). Each parent up the view hierarchy will be given an opportunity to respond and claim the nested scrolling operation by returning true.

This method may be overridden by ViewParent implementations to indicate when the view is willing to support a nested scrolling operation that is about to begin. If it returns true, this ViewParent will become the target view's nested scrolling parent for the duration of the scroll operation in progress. When the nested scroll is finished this ViewParent will receive a call to onStopNestedScroll(android.view.View).

Parameters
`child`	`View`: Direct child of this ViewParent containing target
`target`	`View`: View that initiated the nested scroll
`nestedScrollAxes`	`int`: Flags consisting of `View#SCROLL_AXIS_HORIZONTAL`, `View#SCROLL_AXIS_VERTICAL` or both

Returns
`boolean`	true if this ViewParent accepts the nested scroll operation

onStopNestedScroll

public void onStopNestedScroll (View target)

React to a nested scroll operation ending.

Perform cleanup after a nested scrolling operation. This method will be called when a nested scroll stops, for example when a nested touch scroll ends with a MotionEvent#ACTION_UP or MotionEvent#ACTION_CANCEL event. Implementations of this method should always call their superclass's implementation of this method if one is present.

Parameters
`target`	`View`: View that initiated the nested scroll

onTouchEvent

public boolean onTouchEvent (MotionEvent ev)

Implement this method to handle touch screen motion events.

If this method is used to detect click actions, it is recommended that the actions be performed by implementing and calling performClick(). This will ensure consistent system behavior, including:

obeying click sound preferences
dispatching OnClickListener calls
handling AccessibilityNodeInfo#ACTION_CLICK when accessibility features are enabled

Parameters
`ev`	`MotionEvent`: The motion event.

Returns
`boolean`	True if the event was handled, false otherwise.

pageScroll

public boolean pageScroll (int direction)

Handles scrolling in response to a "page up/down" shortcut press. This method will scroll the view by one page up or down and give the focus to the topmost/bottommost component in the new visible area. If no component is a good candidate for focus, this scrollview reclaims the focus.

Parameters
`direction`	`int`: the scroll direction: `View.FOCUS_UP` to go one page up or `View.FOCUS_DOWN` to go one page down

Returns
`boolean`	true if the key event is consumed by this method, false otherwise

requestChildFocus

public void requestChildFocus (View child, 
                View focused)

Called when a child of this parent wants focus

Parameters
`child`	`View`: The child of this ViewParent that wants focus. This view will contain the focused view. It is not necessarily the view that actually has focus.
`focused`	`View`: The view that is a descendant of child that actually has focus

requestChildRectangleOnScreen

public boolean requestChildRectangleOnScreen (View child, 
                Rect rectangle, 
                boolean immediate)

Called when a child of this group wants a particular rectangle to be positioned onto the screen. ViewGroups overriding this can trust that:

child will be a direct child of this group
rectangle will be in the child's content coordinates

ViewGroups overriding this should uphold the contract:

nothing will change if the rectangle is already visible
the view port will be scrolled only just enough to make the rectangle visible

Parameters
`child`	`View`: The direct child making the request.
`rectangle`	`Rect`: The rectangle in the child's coordinates the child wishes to be on the screen.
`immediate`	`boolean`: True to forbid animated or delayed scrolling, false otherwise

Returns
`boolean`	Whether the group scrolled to handle the operation

requestDisallowInterceptTouchEvent

public void requestDisallowInterceptTouchEvent (boolean disallowIntercept)

Called when a child does not want this parent and its ancestors to intercept touch events with ViewGroup#onInterceptTouchEvent(MotionEvent).

This parent should pass this call onto its parents. This parent must obey this request for the duration of the touch (that is, only clear the flag after this parent has received an up or a cancel.

Parameters
`disallowIntercept`	`boolean`: True if the child does not want the parent to intercept touch events.

requestLayout

public void requestLayout ()

Call this when something has changed which has invalidated the layout of this view. This will schedule a layout pass of the view tree. This should not be called while the view hierarchy is currently in a layout pass (isInLayout(). If layout is happening, the request may be honored at the end of the current layout pass (and then layout will run again) or after the current frame is drawn and the next layout occurs.

Subclasses which override this method should call the superclass method to handle possible request-during-layout errors correctly.

If you override this method you must call through to the superclass implementation.

scrollTo

public void scrollTo (int x, 
                int y)

Set the scrolled position of your view. This will cause a call to onScrollChanged(int, int, int, int) and the view will be invalidated.

This version also clamps the scrolling to the bounds of our child.

Parameters
`x`	`int`: the x position to scroll to
`y`	`int`: the y position to scroll to

scrollToDescendant

public void scrollToDescendant (View child)

Scrolls the view to the given child.

Parameters
`child`	`View`: the View to scroll to This value cannot be `null`.

setBottomEdgeEffectColor

public void setBottomEdgeEffectColor (int color)

Sets the bottom edge effect color.

Parameters
`color`	`int`: The color for the bottom edge effect.

See also:

setEdgeEffectColor

public void setEdgeEffectColor (int color)

Sets the edge effect color for both top and bottom edge effects.

Parameters
`color`	`int`: The color for the edge effects.

See also:

setFillViewport

public void setFillViewport (boolean fillViewport)

Indicates this ScrollView whether it should stretch its content height to fill the viewport or not.

Related XML Attributes:

android:fillViewport

Parameters
`fillViewport`	`boolean`: True to stretch the content's height to the viewport's boundaries, false otherwise.

setSmoothScrollingEnabled

public void setSmoothScrollingEnabled (boolean smoothScrollingEnabled)

Set whether arrow scrolling will animate its transition.

Parameters
`smoothScrollingEnabled`	`boolean`: whether arrow scrolling will animate its transition

setTopEdgeEffectColor

public void setTopEdgeEffectColor (int color)

Sets the top edge effect color.

Parameters
`color`	`int`: The color for the top edge effect.

See also:

shouldDelayChildPressedState

public boolean shouldDelayChildPressedState ()

Return true if the pressed state should be delayed for children or descendants of this ViewGroup. Generally, this should be done for containers that can scroll, such as a List. This prevents the pressed state from appearing when the user is actually trying to scroll the content. The default implementation returns true for compatibility reasons. Subclasses that do not scroll should generally override this method and return false.

Returns
`boolean`

smoothScrollBy

public final void smoothScrollBy (int dx, 
                int dy)

Like View#scrollBy, but scroll smoothly instead of immediately.

Parameters
`dx`	`int`: the number of pixels to scroll by on the X axis
`dy`	`int`: the number of pixels to scroll by on the Y axis

smoothScrollTo

public final void smoothScrollTo (int x, 
                int y)

Like scrollTo(int, int), but scroll smoothly instead of immediately.

Parameters
`x`	`int`: the position where to scroll on the X axis
`y`	`int`: the position where to scroll on the Y axis

Protected methods

computeScrollDeltaToGetChildRectOnScreen

protected int computeScrollDeltaToGetChildRectOnScreen (Rect rect)

Compute the amount to scroll in the Y direction in order to get a rectangle completely on the screen (or, if taller than the screen, at least the first screen size chunk of it).

Parameters
`rect`	`Rect`: The rect.

Returns
`int`	The scroll delta.

computeVerticalScrollOffset

protected int computeVerticalScrollOffset ()

Compute the vertical offset of the vertical scrollbar's thumb within the horizontal range. This value is used to compute the position of the thumb within the scrollbar's track.

The range is expressed in arbitrary units that must be the same as the units used by computeVerticalScrollRange() and computeVerticalScrollExtent().

The default offset is the scroll offset of this view.

Returns
`int`	the vertical offset of the scrollbar's thumb

computeVerticalScrollRange

protected int computeVerticalScrollRange ()

The scroll range of a scroll view is the overall height of all of its children.

Returns

int

the total vertical range represented by the vertical scrollbar

The default range is the drawing height of this view.

getBottomFadingEdgeStrength

protected float getBottomFadingEdgeStrength ()

Returns the strength, or intensity, of the bottom faded edge. The strength is a value between 0.0 (no fade) and 1.0 (full fade). The default implementation returns 0.0 or 1.0 but no value in between. Subclasses should override this method to provide a smoother fade transition when scrolling occurs.

Returns
`float`	the intensity of the bottom fade as a float between 0.0f and 1.0f

getTopFadingEdgeStrength

protected float getTopFadingEdgeStrength ()

Returns the strength, or intensity, of the top faded edge. The strength is a value between 0.0 (no fade) and 1.0 (full fade). The default implementation returns 0.0 or 1.0 but no value in between. Subclasses should override this method to provide a smoother fade transition when scrolling occurs.

Returns
`float`	the intensity of the top fade as a float between 0.0f and 1.0f

measureChild

protected void measureChild (View child, 
                int parentWidthMeasureSpec, 
                int parentHeightMeasureSpec)

Ask one of the children of this view to measure itself, taking into account both the MeasureSpec requirements for this view and its padding. The heavy lifting is done in getChildMeasureSpec.

Parameters
`child`	`View`: The child to measure
`parentWidthMeasureSpec`	`int`: The width requirements for this view
`parentHeightMeasureSpec`	`int`: The height requirements for this view

measureChildWithMargins

protected void measureChildWithMargins (View child, 
                int parentWidthMeasureSpec, 
                int widthUsed, 
                int parentHeightMeasureSpec, 
                int heightUsed)

Ask one of the children of this view to measure itself, taking into account both the MeasureSpec requirements for this view and its padding and margins. The child must have MarginLayoutParams The heavy lifting is done in getChildMeasureSpec.

Parameters
`child`	`View`: The child to measure
`parentWidthMeasureSpec`	`int`: The width requirements for this view
`widthUsed`	`int`: Extra space that has been used up by the parent horizontally (possibly by other children of the parent)
`parentHeightMeasureSpec`	`int`: The height requirements for this view
`heightUsed`	`int`: Extra space that has been used up by the parent vertically (possibly by other children of the parent)

onDetachedFromWindow

protected void onDetachedFromWindow ()

This is called when the view is detached from a window. At this point it no longer has a surface for drawing.
If you override this method you must call through to the superclass implementation.

onLayout

protected void onLayout (boolean changed, 
                int l, 
                int t, 
                int r, 
                int b)

Called from layout when this view should assign a size and position to each of its children. Derived classes with children should override this method and call layout on each of their children.

Parameters
`changed`	`boolean`: This is a new size or position for this view
`l`	`int`: Left position, relative to parent
`t`	`int`: Top position, relative to parent
`r`	`int`: Right position, relative to parent
`b`	`int`: Bottom position, relative to parent

onMeasure

protected void onMeasure (int widthMeasureSpec, 
                int heightMeasureSpec)

Measure the view and its content to determine the measured width and the measured height. This method is invoked by measure(int, int) and should be overridden by subclasses to provide accurate and efficient measurement of their contents.

CONTRACT: When overriding this method, you must call setMeasuredDimension(int, int) to store the measured width and height of this view. Failure to do so will trigger an IllegalStateException, thrown by measure(int, int). Calling the superclass' onMeasure(int, int) is a valid use.

The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec. Subclasses should override onMeasure(int, int) to provide better measurements of their content.

If this method is overridden, it is the subclass's responsibility to make sure the measured height and width are at least the view's minimum height and width (getSuggestedMinimumHeight() and getSuggestedMinimumWidth()).

Parameters
`widthMeasureSpec`	`int`: horizontal space requirements as imposed by the parent. The requirements are encoded with `View.MeasureSpec`.
`heightMeasureSpec`	`int`: vertical space requirements as imposed by the parent. The requirements are encoded with `View.MeasureSpec`.

onOverScrolled

protected void onOverScrolled (int scrollX, 
                int scrollY, 
                boolean clampedX, 
                boolean clampedY)

Called by overScrollBy(int, int, int, int, int, int, int, int, boolean) to respond to the results of an over-scroll operation.

Parameters
`scrollX`	`int`: New X scroll value in pixels
`scrollY`	`int`: New Y scroll value in pixels
`clampedX`	`boolean`: True if scrollX was clamped to an over-scroll boundary
`clampedY`	`boolean`: True if scrollY was clamped to an over-scroll boundary

onRequestFocusInDescendants

protected boolean onRequestFocusInDescendants (int direction, 
                Rect previouslyFocusedRect)

When looking for focus in children of a scroll view, need to be a little more careful not to give focus to something that is scrolled off screen. This is more expensive than the default ViewGroup implementation, otherwise this behavior might have been made the default.

Parameters
`direction`	`int`: One of FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, and FOCUS_RIGHT
`previouslyFocusedRect`	`Rect`: The rectangle (in this View's coordinate system) to give a finer grained hint about where focus is coming from. May be null if there is no hint.

Returns
`boolean`	Whether focus was taken.

onRestoreInstanceState

protected void onRestoreInstanceState (Parcelable state)

Hook allowing a view to re-apply a representation of its internal state that had previously been generated by onSaveInstanceState(). This function will never be called with a null state.
If you override this method you must call through to the superclass implementation.

Parameters
`state`	`Parcelable`: The frozen state that had previously been returned by `onSaveInstanceState()`.

onSaveInstanceState

protected Parcelable onSaveInstanceState ()

Hook allowing a view to generate a representation of its internal state that can later be used to create a new instance with that same state. This state should only contain information that is not persistent or can not be reconstructed later. For example, you will never store your current position on screen because that will be computed again when a new instance of the view is placed in its view hierarchy.

Some examples of things you may store here: the current cursor position in a text view (but usually not the text itself since that is stored in a content provider or other persistent storage), the currently selected item in a list view.
If you override this method you must call through to the superclass implementation.

Returns
`Parcelable`	Returns a Parcelable object containing the view's current dynamic state, or null if there is nothing interesting to save.

onSizeChanged

protected void onSizeChanged (int w, 
                int h, 
                int oldw, 
                int oldh)

This is called during layout when the size of this view has changed. If you were just added to the view hierarchy, you're called with the old values of 0.

Parameters
`w`	`int`: Current width of this view.
`h`	`int`: Current height of this view.
`oldw`	`int`: Old width of this view.
`oldh`	`int`: Old height of this view.