View

public class View
extends Object implements AccessibilityEventSource, Drawable.Callback, KeyEvent.Callback

java.lang.Object
   ↳ android.view.View

This class represents the basic building block for user interface components. A View occupies a rectangular area on the screen and is responsible for drawing and event handling. View is the base class for widgets, which are used to create interactive UI components (buttons, text fields, etc.). The ViewGroup subclass is the base class for layouts, which are invisible containers that hold other Views (or other ViewGroups) and define their layout properties.

Developer Guides

For information about using this class to develop your application's user interface, read the User Interface developer guide.

Using Views

All of the views in a window are arranged in a single tree. You can add views either from code or by specifying a tree of views in one or more XML layout files. There are many specialized subclasses of views that act as controls or are capable of displaying text, images, or other content.

Once you have created a tree of views, there are typically a few types of common operations you may wish to perform:

  • Set properties: for example setting the text of a TextView. The available properties and the methods that set them will vary among the different subclasses of views. Note that properties that are known at build time can be set in the XML layout files.
  • Set focus: The framework will handle moving focus in response to user input. To force focus to a specific view, call requestFocus().
  • Set up listeners: Views allow clients to set listeners that will be notified when something interesting happens to the view. For example, all views will let you set a listener to be notified when the view gains or loses focus. You can register such a listener using setOnFocusChangeListener(android.view.View.OnFocusChangeListener). Other view subclasses offer more specialized listeners. For example, a Button exposes a listener to notify clients when the button is clicked.
  • Set visibility: You can hide or show views using setVisibility(int).

Note: The Android framework is responsible for measuring, laying out and drawing views. You should not call methods that perform these actions on views yourself unless you are actually implementing a ViewGroup.

Implementing a Custom View

To implement a custom view, you will usually begin by providing overrides for some of the standard methods that the framework calls on all views. You do not need to override all of these methods. In fact, you can start by just overriding onDraw(android.graphics.Canvas).

Category Methods Description
Creation Constructors There is a form of the constructor that are called when the view is created from code and a form that is called when the view is inflated from a layout file. The second form should parse and apply any attributes defined in the layout file.
onFinishInflate() Called after a view and all of its children has been inflated from XML.
Layout onMeasure(int, int) Called to determine the size requirements for this view and all of its children.
onLayout(boolean, int, int, int, int) Called when this view should assign a size and position to all of its children.
onSizeChanged(int, int, int, int) Called when the size of this view has changed.
Drawing onDraw(android.graphics.Canvas) Called when the view should render its content.
Event processing onKeyDown(int, android.view.KeyEvent) Called when a new hardware key event occurs.
onKeyUp(int, android.view.KeyEvent) Called when a hardware key up event occurs.
onTrackballEvent(android.view.MotionEvent) Called when a trackball motion event occurs.
onTouchEvent(android.view.MotionEvent) Called when a motion event occurs with pointers down on the view.
onGenericMotionEvent(android.view.MotionEvent) Called when a generic motion event occurs.
onHoverEvent(android.view.MotionEvent) Called when a hover motion event occurs.
Focus onFocusChanged(boolean, int, android.graphics.Rect) Called when the view gains or loses focus.
onWindowFocusChanged(boolean) Called when the window containing the view gains or loses focus.
Attaching onAttachedToWindow() Called when the view is attached to a window.
onDetachedFromWindow() Called when the view is detached from its window.
onWindowVisibilityChanged(int) Called when the visibility of the window containing the view has changed.

IDs

Views may have an integer id associated with them. These ids are typically assigned in the layout XML files, and are used to find specific views within the view tree. A common pattern is to:
  • Define a Button in the layout file and assign it a unique ID. 
     <Button
     android:id="@+id/my_button"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:text="@string/my_button_text"/>
  • From the onCreate method of an Activity, find the Button 
          Button myButton = findViewById(R.id.my_button);

View IDs need not be unique throughout the tree, but it is good practice to ensure that they are at least unique within the part of the tree you are searching.

Position

The geometry of a view is that of a rectangle. A view has a location, expressed as a pair of left and top coordinates, and two dimensions, expressed as a width and a height. The unit for location and dimensions is the pixel.

It is possible to retrieve the location of a view by invoking the methods getLeft() and getTop(). The former returns the left, or X, coordinate of the rectangle representing the view. The latter returns the top, or Y, coordinate of the rectangle representing the view. These methods both return the location of the view relative to its parent. For instance, when getLeft() returns 20, that means the view is located 20 pixels to the right of the left edge of its direct parent.

In addition, several convenience methods are offered to avoid unnecessary computations, namely getRight() and getBottom(). These methods return the coordinates of the right and bottom edges of the rectangle representing the view. For instance, calling getRight() is similar to the following computation: getLeft() + getWidth() (see Size for more information about the width.)

Size, padding and margins

The size of a view is expressed with a width and a height. A view actually possess two pairs of width and height values.

The first pair is known as measured width and measured height. These dimensions define how big a view wants to be within its parent (see Layout for more details.) The measured dimensions can be obtained by calling getMeasuredWidth() and getMeasuredHeight().

The second pair is simply known as width and height, or sometimes drawing width and drawing height. These dimensions define the actual size of the view on screen, at drawing time and after layout. These values may, but do not have to, be different from the measured width and height. The width and height can be obtained by calling getWidth() and getHeight().

To measure its dimensions, a view takes into account its padding. The padding is expressed in pixels for the left, top, right and bottom parts of the view. Padding can be used to offset the content of the view by a specific amount of pixels. For instance, a left padding of 2 will push the view's content by 2 pixels to the right of the left edge. Padding can be set using the setPadding(int, int, int, int) or setPaddingRelative(int, int, int, int) method and queried by calling getPaddingLeft(), getPaddingTop(), getPaddingRight(), getPaddingBottom(), getPaddingStart(), getPaddingEnd().

Even though a view can define a padding, it does not provide any support for margins. However, view groups provide such a support. Refer to ViewGroup and ViewGroup.MarginLayoutParams for further information.

Layout

Layout is a two pass process: a measure pass and a layout pass. The measuring pass is implemented in measure(int, int) and is a top-down traversal of the view tree. Each view pushes dimension specifications down the tree during the recursion. At the end of the measure pass, every view has stored its measurements. The second pass happens in layout(int, int, int, int) and is also top-down. During this pass each parent is responsible for positioning all of its children using the sizes computed in the measure pass.

When a view's measure() method returns, its getMeasuredWidth() and getMeasuredHeight() values must be set, along with those for all of that view's descendants. A view's measured width and measured height values must respect the constraints imposed by the view's parents. This guarantees that at the end of the measure pass, all parents accept all of their children's measurements. A parent view may call measure() more than once on its children. For example, the parent may measure each child once with unspecified dimensions to find out how big they want to be, then call measure() on them again with actual numbers if the sum of all the children's unconstrained sizes is too big or too small.

The measure pass uses two classes to communicate dimensions. The MeasureSpec class is used by views to tell their parents how they want to be measured and positioned. The base LayoutParams class just describes how big the view wants to be for both width and height. For each dimension, it can specify one of:

  • an exact number
  • MATCH_PARENT, which means the view wants to be as big as its parent (minus padding)
  • WRAP_CONTENT, which means that the view wants to be just big enough to enclose its content (plus padding).
There are subclasses of LayoutParams for different subclasses of ViewGroup. For example, AbsoluteLayout has its own subclass of LayoutParams which adds an X and Y value.

MeasureSpecs are used to push requirements down the tree from parent to child. A MeasureSpec can be in one of three modes:

  • UNSPECIFIED: This is used by a parent to determine the desired dimension of a child view. For example, a LinearLayout may call measure() on its child with the height set to UNSPECIFIED and a width of EXACTLY 240 to find out how tall the child view wants to be given a width of 240 pixels.
  • EXACTLY: This is used by the parent to impose an exact size on the child. The child must use this size, and guarantee that all of its descendants will fit within this size.
  • AT_MOST: This is used by the parent to impose a maximum size on the child. The child must guarantee that it and all of its descendants will fit within this size.

To initiate a layout, call requestLayout(). This method is typically called by a view on itself when it believes that it can no longer fit within its current bounds.

Drawing

Drawing is handled by walking the tree and recording the drawing commands of any View that needs to update. After this, the drawing commands of the entire tree are issued to screen, clipped to the newly damaged area.

The tree is largely recorded and drawn in order, with parents drawn before (i.e., behind) their children, with siblings drawn in the order they appear in the tree. If you set a background drawable for a View, then the View will draw it before calling back to its onDraw() method. The child drawing order can be overridden with custom child drawing order in a ViewGroup, and with setZ(float) custom Z values} set on Views.

To force a view to draw, call invalidate().

Event Handling and Threading

The basic cycle of a view is as follows:

  1. An event comes in and is dispatched to the appropriate view. The view handles the event and notifies any listeners.
  2. If in the course of processing the event, the view's bounds may need to be changed, the view will call requestLayout().
  3. Similarly, if in the course of processing the event the view's appearance may need to be changed, the view will call invalidate().
  4. If either requestLayout() or invalidate() were called, the framework will take care of measuring, laying out, and drawing the tree as appropriate.

Note: The entire view tree is single threaded. You must always be on the UI thread when calling any method on any view. If you are doing work on other threads and want to update the state of a view from that thread, you should use a Handler.

Focus Handling

The framework will handle routine focus movement in response to user input. This includes changing the focus as views are removed or hidden, or as new views become available. Views indicate their willingness to take focus through the isFocusable() method. To change whether a view can take focus, call setFocusable(boolean). When in touch mode (see notes below) views indicate whether they still would like focus via isFocusableInTouchMode() and can change this via setFocusableInTouchMode(boolean).

Focus movement is based on an algorithm which finds the nearest neighbor in a given direction. In rare cases, the default algorithm may not match the intended behavior of the developer. In these situations, you can provide explicit overrides by using these XML attributes in the layout file: 

 nextFocusDown
 nextFocusLeft
 nextFocusRight
 nextFocusUp

To get a particular view to take focus, call requestFocus().

Touch Mode

When a user is navigating a user interface via directional keys such as a D-pad, it is necessary to give focus to actionable items such as buttons so the user can see what will take input. If the device has touch capabilities, however, and the user begins interacting with the interface by touching it, it is no longer necessary to always highlight, or give focus to, a particular view. This motivates a mode for interaction named 'touch mode'.

For a touch capable device, once the user touches the screen, the device will enter touch mode. From this point onward, only views for which isFocusableInTouchMode() is true will be focusable, such as text editing widgets. Other views that are touchable, like buttons, will not take focus when touched; they will only fire the on click listeners.

Any time a user hits a directional key, such as a D-pad direction, the view device will exit touch mode, and find a view to take focus, so that the user may resume interacting with the user interface without touching the screen again.

The touch mode state is maintained across Activitys. Call isInTouchMode() to see whether the device is currently in touch mode.

Scrolling

The framework provides basic support for views that wish to internally scroll their content. This includes keeping track of the X and Y scroll offset as well as mechanisms for drawing scrollbars. See scrollBy(int, int), scrollTo(int, int), and awakenScrollBars() for more details.

Tags

Unlike IDs, tags are not used to identify views. Tags are essentially an extra piece of information that can be associated with a view. They are most often used as a convenience to store data related to views in the views themselves rather than by putting them in a separate structure.

Tags may be specified with character sequence values in layout XML as either a single tag using the android:tag attribute or multiple tags using the <tag> child element: 

     <View ...
           android:tag="@string/mytag_value" />
     <View ...>
         <tag android:id="@+id/mytag"
              android:value="@string/mytag_value" />
     </View>

Tags may also be specified with arbitrary objects from code using setTag(java.lang.Object) or setTag(int, java.lang.Object).

Themes

By default, Views are created using the theme of the Context object supplied to their constructor; however, a different theme may be specified by using the android:theme attribute in layout XML or by passing a ContextThemeWrapper to the constructor from code.

When the android:theme attribute is used in XML, the specified theme is applied on top of the inflation context's theme (see LayoutInflater) and used for the view itself as well as any child elements.

In the following example, both views will be created using the Material dark color scheme; however, because an overlay theme is used which only defines a subset of attributes, the value of android:colorAccent defined on the inflation context's theme (e.g. the Activity theme) will be preserved. 

     <LinearLayout
             ...
             android:theme="@android:theme/ThemeOverlay.Material.Dark">
         <View ...>
     </LinearLayout>

Properties

The View class exposes an ALPHA property, as well as several transform-related properties, such as TRANSLATION_X and TRANSLATION_Y. These properties are available both in the Property form as well as in similarly-named setter/getter methods (such as setAlpha(float) for ALPHA). These properties can be used to set persistent state associated with these rendering-related properties on the view. The properties and methods can also be used in conjunction with Animator-based animations, described more in the Animation section.

Animation

Starting with Android 3.0, the preferred way of animating views is to use the android.animation package APIs. These Animator-based classes change actual properties of the View object, such as alpha and translationX. This behavior is contrasted to that of the pre-3.0 Animation-based classes, which instead animate only how the view is drawn on the display. In particular, the ViewPropertyAnimator class makes animating these View properties particularly easy and efficient.

Alternatively, you can use the pre-3.0 animation classes to animate how Views are rendered. You can attach an Animation object to a view using setAnimation(android.view.animation.Animation) or startAnimation(android.view.animation.Animation). The animation can alter the scale, rotation, translation and alpha of a view over time. If the animation is attached to a view that has children, the animation will affect the entire subtree rooted by that node. When an animation is started, the framework will take care of redrawing the appropriate views until the animation completes.

Security

Sometimes it is essential that an application be able to verify that an action is being performed with the full knowledge and consent of the user, such as granting a permission request, making a purchase or clicking on an advertisement. Unfortunately, a malicious application could try to spoof the user into performing these actions, unaware, by concealing the intended purpose of the view. As a remedy, the framework offers a touch filtering mechanism that can be used to improve the security of views that provide access to sensitive functionality.

To enable touch filtering, call setFilterTouchesWhenObscured(boolean) or set the android:filterTouchesWhenObscured layout attribute to true. When enabled, the framework will discard touches that are received whenever the view's window is obscured by another visible window at the touched location. As a result, the view will not receive touches whenever the touch passed through a toast, dialog or other window that appears above the view's window.

For more fine-grained control over security, consider overriding the onFilterTouchEventForSecurity(android.view.MotionEvent) method to implement your own security policy. See also MotionEvent.FLAG_WINDOW_IS_OBSCURED.

See also:

Summary

Nested classes

class View.AccessibilityDelegate

This class represents a delegate that can be registered in a View to enhance accessibility support via composition rather via inheritance. 

class View.BaseSavedState

Base class for derived classes that want to save and restore their own state in View.onSaveInstanceState(). 

class View.DragShadowBuilder

Creates an image that the system displays during the drag and drop operation. 

class View.MeasureSpec

A MeasureSpec encapsulates the layout requirements passed from parent to child. 

interface View.OnApplyWindowInsetsListener

Listener for applying window insets on a view in a custom way. 

interface View.OnAttachStateChangeListener

Interface definition for a callback to be invoked when this view is attached or detached from its window. 

interface View.OnCapturedPointerListener

Interface definition for a callback to be invoked when a captured pointer event is being dispatched this view. 

interface View.OnClickListener

Interface definition for a callback to be invoked when a view is clicked. 

interface View.OnContextClickListener

Interface definition for a callback to be invoked when a view is context clicked. 

interface View.OnCreateContextMenuListener

Interface definition for a callback to be invoked when the context menu for this view is being built. 

interface View.OnDragListener

Interface definition for a listener that's invoked when a drag event is dispatched to this view. 

interface View.OnFocusChangeListener

Interface definition for a callback to be invoked when the focus state of a view changed. 

interface View.OnGenericMotionListener

Interface definition for a callback to be invoked when a generic motion event is dispatched to this view. 

interface View.OnHoverListener

Interface definition for a callback to be invoked when a hover event is dispatched to this view. 

interface View.OnKeyListener

Interface definition for a callback to be invoked when a hardware key event is dispatched to this view. 

interface View.OnLayoutChangeListener

Interface definition for a callback to be invoked when the layout bounds of a view changes due to layout processing. 

interface View.OnLongClickListener

Interface definition for a callback to be invoked when a view has been clicked and held. 

interface View.OnScrollChangeListener

Interface definition for a callback to be invoked when the scroll X or Y positions of a view change. 

interface View.OnSystemUiVisibilityChangeListener

This interface was deprecated in API level 30. Use WindowInsets.isVisible(int) to find out about system bar visibilities by setting a OnApplyWindowInsetsListener on this view. 

interface View.OnTouchListener

Interface definition for a callback to be invoked when a touch event is dispatched to this view. 

interface View.OnUnhandledKeyEventListener

Interface definition for a callback to be invoked when a hardware key event hasn't been handled by the view hierarchy. 

XML attributes

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 that screen readers are requested to visit before this view. 
android:accessibilityTraversalBefore Sets the id of a view that screen readers are requested to visit after this view. 
android:allowClickWhenDisabled Whether or not allow clicks on disabled view. 
android:alpha alpha property of the view, as a value between 0 (completely transparent) and 1 (completely opaque). 
android:autoHandwritingEnabled

Whether or not the auto handwriting initiation is enabled in this View. 

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:clipToOutline

Whether the View's Outline should be used to clip the contents of the View. 

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:isCredential Boolean that hints the Android System that the view is credential and associated with CredentialManager

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

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:preferKeepClear

Sets a preference to keep the bounds of this view clear from floating windows above this view's window. 

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:supplementalDescription Provides brief supplemental information for the view, such as the purpose of the view when that purpose is not conveyed within its textual representation. 
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. 

Constants

int ACCESSIBILITY_DATA_SENSITIVE_AUTO

Automatically determine whether the view should only allow interactions from AccessibilityServices with the AccessibilityServiceInfo.isAccessibilityTool() property set to true.

int ACCESSIBILITY_DATA_SENSITIVE_NO

Allow interactions from all AccessibilityServices, regardless of their AccessibilityServiceInfo.isAccessibilityTool() property.

int ACCESSIBILITY_DATA_SENSITIVE_YES

Only allow interactions from AccessibilityServices with the AccessibilityServiceInfo.isAccessibilityTool() property set to true.

int ACCESSIBILITY_LIVE_REGION_ASSERTIVE

Live region mode specifying that accessibility services should immediately notify users of 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 notify users of 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 CONTENT_SENSITIVITY_AUTO

Content sensitivity is determined by the framework.

int CONTENT_SENSITIVITY_NOT_SENSITIVE

The view doesn't display sensitive content.

int CONTENT_SENSITIVITY_SENSITIVE

The view displays sensitive content.

int DRAG_FLAG_ACCESSIBILITY_ACTION

Flag indicating that the drag was initiated with AccessibilityNodeInfo.AccessibilityAction.ACTION_DRAG_START.

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_SAME_APPLICATION

Flag indicating that a drag can cross window boundaries (within the same application).

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_HIDE_CALLING_TASK_ON_DRAG_START

Flag indicating that this drag will result in the caller activity's task to be hidden for the duration of the drag, which means that the source activity will not receive drag events for the current drag gesture.

int DRAG_FLAG_OPAQUE

Flag indicating that the drag shadow will be opaque.

int DRAG_FLAG_START_INTENT_SENDER_ON_UNHANDLED_DRAG

Flag indicating that an unhandled drag should be delegated to the system to be started if no visible window wishes to handle the drop.

int DRAWING_CACHE_QUALITY_AUTO

This constant was deprecated in API level 28. 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 was deprecated in API level 28. 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 was deprecated in API level 28. 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 RECTANGLE_ON_SCREEN_REQUEST_SOURCE_INPUT_FOCUS

Represents that the user interaction that is requesting a rectangle on screen is doing so because the View has input/keyboard focus.

int RECTANGLE_ON_SCREEN_REQUEST_SOURCE_SCROLL_ONLY

Represents that the user interaction that is requesting a rectangle on screen is doing so only to scroll the View on screen, and the rectangle is not associated with a text cursor or keyboard focus.

int RECTANGLE_ON_SCREEN_REQUEST_SOURCE_TEXT_CURSOR

Represents that the user interaction that is requesting a rectangle on screen is doing so because the View contains a text cursor (caret).

int RECTANGLE_ON_SCREEN_REQUEST_SOURCE_UNDEFINED

Represents that the user interaction that is requesting a rectangle on screen is doing so via the original requestRectangleOnScreen(android.graphics.Rect) or requestRectangleOnScreen(android.graphics.Rect, boolean) APIs that do not define the source.

float REQUESTED_FRAME_RATE_CATEGORY_DEFAULT

float REQUESTED_FRAME_RATE_CATEGORY_HIGH

float REQUESTED_FRAME_RATE_CATEGORY_LOW

float REQUESTED_FRAME_RATE_CATEGORY_NORMAL

float REQUESTED_FRAME_RATE_CATEGORY_NO_PREFERENCE

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_CAPTURE_HINT_AUTO

The content of this view will be considered for scroll capture if scrolling is possible.

int SCROLL_CAPTURE_HINT_EXCLUDE

Explicitly exclude this view as a potential scroll capture target.

int SCROLL_CAPTURE_HINT_EXCLUDE_DESCENDANTS

Explicitly exclude all children of this view as potential scroll capture targets.

int SCROLL_CAPTURE_HINT_INCLUDE

Explicitly include this view as a potential scroll capture target.

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 was deprecated in API level 15. Use SYSTEM_UI_FLAG_LOW_PROFILE instead.

int STATUS_BAR_VISIBLE

This constant was deprecated in API level 15. Use SYSTEM_UI_FLAG_VISIBLE instead.

int SYSTEM_UI_FLAG_FULLSCREEN

This constant was deprecated in API level 30. Use WindowInsetsController.hide(int) with Type.statusBars() instead.

int SYSTEM_UI_FLAG_HIDE_NAVIGATION

This constant was deprecated in API level 30. Use WindowInsetsController.hide(int) with Type.navigationBars() instead.

int SYSTEM_UI_FLAG_IMMERSIVE

This constant was deprecated in API level 30. Use WindowInsetsController.BEHAVIOR_DEFAULT instead.

int SYSTEM_UI_FLAG_IMMERSIVE_STICKY

This constant was deprecated in API level 30. Use WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE instead.

int SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN

This constant was deprecated in API level 30. 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 was deprecated in API level 30. 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 was deprecated in API level 30. 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 was deprecated in API level 30. Use WindowInsetsController.APPEARANCE_LIGHT_NAVIGATION_BARS instead.

int SYSTEM_UI_FLAG_LIGHT_STATUS_BAR

This constant was deprecated in API level 30. Use WindowInsetsController.APPEARANCE_LIGHT_STATUS_BARS instead.

int SYSTEM_UI_FLAG_LOW_PROFILE

This constant was deprecated in API level 30. 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 was deprecated in API level 30. SystemUiVisibility flags are deprecated. Use WindowInsetsController instead.

int SYSTEM_UI_LAYOUT_FLAGS

This constant was deprecated in API level 30. 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.

Fields

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

View(Context context)

Simple constructor to use when creating a view from code.

View(Context context, AttributeSet attrs)

Constructor that is called when inflating a view from XML.

View(Context context, AttributeSet attrs, int defStyleAttr)

Perform inflation from XML and apply a class-specific base style from a theme attribute.

View(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)

Perform inflation from XML and apply a class-specific base style from a theme attribute or style resource.

Public methods

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 KeyEvents.

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)

This method was deprecated in API level 36. Use one of the methods described in the documentation above to semantically describe UI instead of using an announcement, as accessibility services may choose to ignore events dispatched with this method.

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.

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 was deprecated in API level 28. 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 was deprecated in API level 28. 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.

void clearPendingCredentialRequest()

Clears the request and callback previously set through View.setPendingCredentialRequest.

void clearViewTranslationCallback()

Clear the ViewTranslationCallback from this view.

static int combineMeasuredStates(int curState, int newState)

Merge two states as returned by getMeasuredState().

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.

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 was deprecated in API level 28. 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 dispatchCreateViewTranslationRequest(Map<AutofillId, long[]> viewIds, int[] supportedFormats, TranslationCapability capability, List<ViewTranslationRequest> requests)

Dispatch to collect the ViewTranslationRequests for translation purpose by traversing the hierarchy when the app requests ui translation.

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 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 dispatchGenericMotionEvent(MotionEvent event)

Dispatch a generic motion 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 to add the text content of the view and its children.

void dispatchProvideAutofillStructure(ViewStructure structure, int flags)

Dispatches creation of a ViewStructures 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 dispatchScrollCaptureSearch(Rect localVisibleRect, Point windowOffset, Consumer<ScrollCaptureTarget> targets)

Dispatch a scroll capture search request down the view hierarchy.

void dispatchStartTemporaryDetach()

Dispatch onStartTemporaryDetach() to this View and its direct children if this is a container View.

void dispatchSystemUiVisibilityChanged(int visibility)

This method was deprecated in API level 30. 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 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 was deprecated in API level 30. 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.

View findFocus()

Find the view in the hierarchy rooted at this view that currently has focus.

final OnBackInvokedDispatcher findOnBackInvokedDispatcher()

Walk up the View hierarchy to find the nearest OnBackInvokedDispatcher.

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.

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.

boolean gatherTransparentRegion(Region region)

This is used by the ViewRoot to perform an optimization when the view hierarchy contains one or several SurfaceView.

void generateDisplayHash(String hashAlgorithm, Rect bounds, Executor executor, DisplayHashResultCallback callback)

Called to generate a DisplayHash for this view.

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 AccessibilityServices 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.

String getAllowedHandwritingDelegatePackageName()

Returns the allowed package for delegate editor views for which this view may act as a handwriting delegator, as set by setAllowedHandwritingDelegatePackage(String).

String getAllowedHandwritingDelegatorPackageName()

Returns the allowed package for views which may act as a handwriting delegator for this delegate editor view, as set by setAllowedHandwritingDelegatorPackage(String).

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 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 int getContentSensitivity()

Gets content sensitivity mode to determine whether this view displays sensitive content.

final Context getContext()

Returns the context the view is running in, through which it can access the current theme, resources, etc.

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 was deprecated in API level 28. 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 was deprecated in API level 28. 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 was deprecated in API level 28. 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 was deprecated in API level 28. 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 at the touched location.

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.

float getFrameContentVelocity()

Get the current velocity of the View.

final boolean getGlobalVisibleRect(Rect r)

Sets r to the coordinates of the non-clipped area of this view in the coordinate space of the view's root view.

boolean getGlobalVisibleRect(Rect r, Point globalOffset)

Sets r to the coordinates of the non-clipped area of this view in the coordinate space of the view's root view.

Handler getHandler()
float getHandwritingBoundsOffsetBottom()

Return the amount of offset applied to the bottom edge of this view's handwriting bounds, in the unit of pixel.

float getHandwritingBoundsOffsetLeft()

Return the amount of offset applied to the left edge of this view's handwriting bounds, in the unit of pixel.

float getHandwritingBoundsOffsetRight()

Return the amount of offset applied to the right edge of this view's handwriting bounds, in the unit of pixel.

float getHandwritingBoundsOffsetTop()

Return the amount of offset applied to the top edge of this view's handwriting bounds, in the unit of pixel.

int getHandwritingDelegateFlags()

Returns flags configuring the handwriting delegation behavior for this delegate editor view, as set by setHandwritingDelegateFlags(int).

Runnable getHandwritingDelegatorCallback()

Returns the callback set by setHandwritingDelegatorCallback(Runnable) which should be called when a stylus MotionEvent occurs within this view's bounds.

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.

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.

final boolean getLocalVisibleRect(Rect r)

Sets r to the coordinates of the non-clipped area of this view relative to the top left corner of the view.

void getLocationInSurface(int[] location)

Gets the coordinates of this view in the coordinate space of the Surface that contains the view.

void getLocationInWindow(int[] outLocation)

Gets the coordinates of this view in the coordinate space of the window that contains the view, irrespective of system decorations.

void getLocationOnScreen(int[] outLocation)

Gets the coordinates of this view in the coordinate space of the device screen, irrespective of system decorations and whether the system is in multi-window mode.

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.

final OutcomeReceiver<GetCredentialResponse, GetCredentialException> getPendingCredentialCallback()

Returns the callback that has previously been set up on this view through the setPendingCredentialRequest(GetCredentialRequest, OutcomeReceiver) API.

final GetCredentialRequest getPendingCredentialRequest()

Returns the GetCredentialRequest associated with the view.

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 mouse pointer icon for the current view.

final List<Rect> getPreferKeepClearRects()
String[] getReceiveContentMimeTypes()

Returns the MIME types accepted by performReceiveContent(ContentInfo) for this view, as configured via setOnReceiveContentListener(String, OnReceiveContentListener).

float getRequestedFrameRate()

Get the current preferred frame rate of the 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.

AttachedSurfaceControl getRootSurfaceControl()

The AttachedSurfaceControl itself is not a View, it is just the interface to the windowing-system object that contains the entire view hierarchy.

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 getScrollCaptureHint()

Returns the current scroll capture hint for this view.

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.

CharSequence getSupplementalDescription()

Returns the View's supplemental description.

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 was deprecated in API level 30. 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.

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.

ViewTranslationResponse getViewTranslationResponse()

Returns the ViewTranslationResponse associated with this view.

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.

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 was deprecated in API level 30. 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 was deprecated in API level 28. 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 was deprecated in API level 28. 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 outline provider

boolean isAccessibilityDataSensitive()

Whether this view should restrict accessibility service access only to services that have the AccessibilityServiceInfo.isAccessibilityTool() property set to true.

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 isAutoHandwritingEnabled()

Return whether the View allows automatic handwriting initiation.

boolean isClickable()

Indicates whether this view reacts to click events or not.

final boolean isContentSensitive()

Returns whether this view displays sensitive content, based on the value explicitly set by setContentSensitivity(int).

boolean isContextClickable()

Indicates whether this view reacts to context clicks or not.

boolean isCredential()

Gets the mode for determining whether this view is a credential.

boolean isDirty()

True if this view has changed since the last time being drawn.

boolean isDrawingCacheEnabled()

This method was deprecated in API level 28. 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 isHandwritingDelegate()

Returns whether this view has been set as a handwriting delegate by setIsHandwritingDelegate(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 the touch mode state associated with this view.

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 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).

final boolean isPreferKeepClear()

Retrieve the preference for this view to be kept clear.

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.

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.

WindowInsets onApplyWindowInsets(WindowInsets insets)

Called when the view should apply WindowInsets according to its internal policy.

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.

InputConnection onCreateInputConnection(EditorInfo outAttrs)

Create a new InputConnection for an InputMethod to interact with the view.

void onCreateViewTranslationRequest(int[] supportedFormats, Consumer<ViewTranslationRequest> requestsCollector)

Collects a ViewTranslationRequest which represents the content to be translated in the view.

void onCreateVirtualViewTranslationRequests(long[] virtualIds, int[] supportedFormats, Consumer<ViewTranslationRequest> requestsCollector)

Collects ViewTranslationRequests which represents the content to be translated for the virtual views in the host view.

boolean onDragEvent(DragEvent event)

Handles drag events sent by the system following a call to startDragAndDrop().

void onDrawForeground(Canvas canvas)

Draw any foreground content for this view.

boolean onFilterTouchEventForSecurity(MotionEvent event)

Filter the touch event to apply security policies.

void onFinishTemporaryDetach()

Called after onStartTemporaryDetach() when the container is done changing the view.

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(): 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(): always returns false (doesn't handle the event).

boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event)

Default implementation of KeyEvent.Callback.onKeyMultiple(): 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(): perform clicking of the view when KeyEvent.KEYCODE_DPAD_CENTER, KeyEvent.KEYCODE_ENTER or KeyEvent.KEYCODE_SPACE is released.

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.

ContentInfo onReceiveContent(ContentInfo payload)

Implements the default behavior for receiving content for this type of view.

PointerIcon onResolvePointerIcon(MotionEvent event, int pointerIndex)

Resolve the pointer icon that should be used for specified pointer in the motion event.

void onRtlPropertiesChanged(int layoutDirection)

Called when any RTL property (layout direction or text direction or text alignment) has been changed.

void onScreenStateChanged(int screenState)

This method is called whenever the state of the screen this view is attached to changes.

void onScrollCaptureSearch(Rect localVisibleRect, Point windowOffset, Consumer<ScrollCaptureTarget> targets)

Called when scroll capture is requested, to search for appropriate content to scroll.

void onStartTemporaryDetach()

This is called when a container is going to temporarily detach a child, with ViewGroup.detachViewFromParent.

boolean onTouchEvent(MotionEvent event)

Implement this method to handle pointer events.

boolean onTrackballEvent(MotionEvent event)

Implement this method to handle trackball motion events.

void onViewTranslationResponse(ViewTranslationResponse response)

Called when the content from View.onCreateViewTranslationRequest had been translated by the TranslationService.

void onVirtualViewTranslationResponses(LongSparseArray<ViewTranslationResponse> response)

Called when the content from View.onCreateVirtualViewTranslationRequests had been translated by the TranslationService.

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 onWindowFocusChanged(boolean hasWindowFocus)

Called when the window containing this view gains or loses focus.

void onWindowSystemUiVisibilityChanged(int visible)

This method was deprecated in API level 30. SystemUiVisibility flags are deprecated. Use WindowInsetsController instead.

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(HapticFeedbackRequest request)

Like performHapticFeedback(int, int), but takes a HapticFeedbackRequest.

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.

ContentInfo performReceiveContent(ContentInfo payload)

Receives the given content.

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 KeyEvents.

void reportAppJankStats(AppJankStats appJankStats)

Called from apps when they want to report jank stats to the system.

void requestApplyInsets()

Ask that a new dispatch of onApplyWindowInsets(android.view.WindowInsets) be performed.

void requestFitSystemWindows()

This method was deprecated in API level 20. 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, boolean immediate, int source)

Request that a rectangle of this view be visible on the screen, scrolling if necessary just enough.

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 setAccessibilityDataSensitive(int accessibilityDataSensitive)

Specifies whether this view should only allow interactions from AccessibilityServices with the AccessibilityServiceInfo.isAccessibilityTool() property set to true.

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 that screen readers are requested to visit before this view.

void setAccessibilityTraversalBefore(int beforeId)

Sets the id of a view that screen readers are requested to visit after this view.

void setActivated(boolean activated)

Changes the activated state of this view.

void setAllowClickWhenDisabled(boolean clickableWhenDisabled)

Enables or disables click events for this view when disabled.

void setAllowedHandwritingDelegatePackage(String allowedPackageName)

Specifies that this view may act as a handwriting initiation delegator for a delegate editor view from the specified package.

void setAllowedHandwritingDelegatorPackage(String allowedPackageName)

Specifies that a view from the specified package may act as a handwriting delegator for this delegate editor 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 setAutoHandwritingEnabled(boolean enabled)

Set whether this view enables automatic handwriting initiation.

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 was deprecated in API level 16. 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.

final void setContentSensitivity(int mode)

Sets content sensitivity mode to determine whether this view displays sensitive content (e.g. username, password etc.).

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 was deprecated in API level 28. 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 was deprecated in API level 28. 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 was deprecated in API level 28. 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 at the touched location.

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 setFrameContentVelocity(float pixelsPerSecond)

Set the current velocity of the View, we only track positive value.

void setHandwritingBoundsOffsets(float offsetLeft, float offsetTop, float offsetRight, float offsetBottom)

Set the amount of offset applied to this view's stylus handwriting bounds.

void setHandwritingDelegateFlags(int flags)

Sets flags configuring the handwriting delegation behavior for this delegate editor view.

void setHandwritingDelegatorCallback(Runnable callback)

Sets a callback which should be called when a stylus MotionEvent occurs within this view's bounds.

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 setIsCredential(boolean isCredential)

Sets whether this view is a credential for Credential Manager purposes.

void setIsHandwritingDelegate(boolean isHandwritingDelegate)

Sets this view to be a handwriting delegate.

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.

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 setOnReceiveContentListener(String[] mimeTypes, OnReceiveContentListener listener)

Sets the listener to be used to handle insertion of content into this view.

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 was deprecated in API level 30. 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 setPendingCredentialRequest(GetCredentialRequest request, OutcomeReceiver<GetCredentialResponse, GetCredentialException> callback)

Sets a CredentialManager request to retrieve credentials, when the user focuses on this given view.

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 to be used for a mouse pointer in the current view.

final void setPreferKeepClear(boolean preferKeepClear)

Set a preference to keep the bounds of this view clear from floating windows above this view's window.

final void setPreferKeepClearRects(List<Rect> rects)

Set a preference to keep the provided rects clear from floating windows above this view's window.

void setPressed(boolean pressed)

Sets the pressed state for this view.

void setRenderEffect(RenderEffect renderEffect)

Configure the RenderEffect to apply to this View.

void setRequestedFrameRate(float frameRate)

You can set the preferred frame rate for a View using a positive number or by specifying the preferred frame rate category using constants, including REQUESTED_FRAME_RATE_CATEGORY_NO_PREFERENCE, REQUESTED_FRAME_RATE_CATEGORY_LOW, REQUESTED_FRAME_RATE_CATEGORY_NORMAL, REQUESTED_FRAME_RATE_CATEGORY_HIGH.

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.

final void setScrollCaptureCallback(ScrollCaptureCallback callback)

Sets the callback to receive scroll capture requests.

void setScrollCaptureHint(int hint)

Sets the scroll capture hint for this View.

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 setSupplementalDescription(CharSequence supplementalDescription)

Sets the View's supplemental description.

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 was deprecated in API level 30. 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