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AccessibilityNodeInfoCompat

public class AccessibilityNodeInfoCompat
extends Object

java.lang.Object
   ↳ android.support.v4.view.accessibility.AccessibilityNodeInfoCompat


Helper for accessing AccessibilityNodeInfo introduced after API level 4 in a backwards compatible fashion.

Summary

Nested classes

class AccessibilityNodeInfoCompat.AccessibilityActionCompat

 

class AccessibilityNodeInfoCompat.CollectionInfoCompat

 

class AccessibilityNodeInfoCompat.CollectionItemInfoCompat

 

class AccessibilityNodeInfoCompat.RangeInfoCompat

 

Constants

int ACTION_ACCESSIBILITY_FOCUS

Action that gives accessibility focus to the node.

String ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN

Argument for whether when moving at granularity to extend the selection or to move it otherwise.

String ACTION_ARGUMENT_HTML_ELEMENT_STRING

Argument for which HTML element to get moving to the next/previous HTML element.

String ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT

Argument for which movement granularity to be used when traversing the node text.

String ACTION_ARGUMENT_SELECTION_END_INT

Argument for specifying the selection end.

String ACTION_ARGUMENT_SELECTION_START_INT

Argument for specifying the selection start.

String ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE

Argument for specifying the text content to set

Type: CharSequence
Actions: ACTION_SET_TEXT

int ACTION_CLEAR_ACCESSIBILITY_FOCUS

Action that clears accessibility focus of the node.

int ACTION_CLEAR_FOCUS

Action that unfocuses the node.

int ACTION_CLEAR_SELECTION

Action that unselects the node.

int ACTION_CLICK

Action that clicks on the node info.

int ACTION_COLLAPSE

Action to collapse an expandable node.

int ACTION_COPY

Action to copy the current selection to the clipboard.

int ACTION_CUT

Action to cut the current selection and place it to the clipboard.

int ACTION_DISMISS

Action to dismiss a dismissable node.

int ACTION_EXPAND

Action to expand an expandable node.

int ACTION_FOCUS

Action that focuses the node.

int ACTION_LONG_CLICK

Action that long clicks on the node.

int ACTION_NEXT_AT_MOVEMENT_GRANULARITY

Action that requests to go to the next entity in this node's text at a given movement granularity.

int ACTION_NEXT_HTML_ELEMENT

Action to move to the next HTML element of a given type.

int ACTION_PASTE

Action to paste the current clipboard content.

int ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY

Action that requests to go to the previous entity in this node's text at a given movement granularity.

int ACTION_PREVIOUS_HTML_ELEMENT

Action to move to the previous HTML element of a given type.

int ACTION_SCROLL_BACKWARD

Action to scroll the node content backward.

int ACTION_SCROLL_FORWARD

Action to scroll the node content forward.

int ACTION_SELECT

Action that selects the node.

int ACTION_SET_SELECTION

Action to set the selection.

int ACTION_SET_TEXT

Action that sets the text of the node.

int FOCUS_ACCESSIBILITY

The accessibility focus.

int FOCUS_INPUT

The input focus.

int MOVEMENT_GRANULARITY_CHARACTER

Movement granularity bit for traversing the text of a node by character.

int MOVEMENT_GRANULARITY_LINE

Movement granularity bit for traversing the text of a node by line.

int MOVEMENT_GRANULARITY_PAGE

Movement granularity bit for traversing the text of a node by page.

int MOVEMENT_GRANULARITY_PARAGRAPH

Movement granularity bit for traversing the text of a node by paragraph.

int MOVEMENT_GRANULARITY_WORD

Movement granularity bit for traversing the text of a node by word.

Public constructors

AccessibilityNodeInfoCompat(Object info)

Creates a new instance wrapping an AccessibilityNodeInfo.

Public methods

void addAction(int action)

Adds an action that can be performed on the node.

void addAction(AccessibilityNodeInfoCompat.AccessibilityActionCompat action)

Adds an action that can be performed on the node.

void addChild(View root, int virtualDescendantId)

Adds a virtual child which is a descendant of the given root.

void addChild(View child)

Adds a child.

boolean canOpenPopup()

Gets if this node opens a popup or a dialog.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

List<AccessibilityNodeInfoCompat> findAccessibilityNodeInfosByText(String text)

Finds AccessibilityNodeInfos by text.

List<AccessibilityNodeInfoCompat> findAccessibilityNodeInfosByViewId(String viewId)

Finds AccessibilityNodeInfoCompats by the fully qualified view id's resource name where a fully qualified id is of the from "package:id/id_resource_name".

AccessibilityNodeInfoCompat findFocus(int focus)

Find the view that has the specified focus type.

AccessibilityNodeInfoCompat focusSearch(int direction)

Searches for the nearest view in the specified direction that can take input focus.

List<AccessibilityNodeInfoCompat.AccessibilityActionCompat> getActionList()

Gets the actions that can be performed on the node.

int getActions()

Gets the actions that can be performed on the node.

void getBoundsInParent(Rect outBounds)

Gets the node bounds in parent coordinates.

void getBoundsInScreen(Rect outBounds)

Gets the node bounds in screen coordinates.

AccessibilityNodeInfoCompat getChild(int index)

Get the child at given index.

int getChildCount()

Gets the number of children.

CharSequence getClassName()

Gets the class this node comes from.

AccessibilityNodeInfoCompat.CollectionInfoCompat getCollectionInfo()

Gets the collection info if the node is a collection.

AccessibilityNodeInfoCompat.CollectionItemInfoCompat getCollectionItemInfo()

Gets the collection item info if the node is a collection item.

CharSequence getContentDescription()

Gets the content description of this node.

int getDrawingOrder()

Get the drawing order of the view corresponding it this node.

CharSequence getError()

Gets the error text of this node.

Bundle getExtras()

Gets an optional bundle with extra data.

Object getInfo()
int getInputType()

Gets the input type of the source as defined by InputType.

AccessibilityNodeInfoCompat getLabelFor()

Gets the node info for which the view represented by this info serves as a label for accessibility purposes.

AccessibilityNodeInfoCompat getLabeledBy()

Gets the node info which serves as the label of the view represented by this info for accessibility purposes.

int getLiveRegion()

Gets the node's live region mode.

int getMaxTextLength()

Returns the maximum text length for this node.

int getMovementGranularities()

Gets the movement granularities for traversing the text of this node.

CharSequence getPackageName()

Gets the package this node comes from.

AccessibilityNodeInfoCompat getParent()

Gets the parent.

AccessibilityNodeInfoCompat.RangeInfoCompat getRangeInfo()

Gets the range info if this node is a range.

CharSequence getRoleDescription()

Gets the custom role description.

CharSequence getText()

Gets the text of this node.

int getTextSelectionEnd()

Gets the text selection end.

int getTextSelectionStart()

Gets the text selection start.

AccessibilityNodeInfoCompat getTraversalAfter()

Gets the node after which this one is visited in accessibility traversal.

AccessibilityNodeInfoCompat getTraversalBefore()

Gets the node before which this one is visited during traversal.

String getViewIdResourceName()

Gets the fully qualified resource name of the source view's id.

AccessibilityWindowInfoCompat getWindow()

Gets the window to which this node belongs.

int getWindowId()

Gets the id of the window from which the info comes from.

int hashCode()

Returns a hash code value for the object.

boolean isAccessibilityFocused()

Gets whether this node is accessibility focused.

boolean isCheckable()

Gets whether this node is checkable.

boolean isChecked()

Gets whether this node is checked.

boolean isClickable()

Gets whether this node is clickable.

boolean isContentInvalid()

Gets if the content of this node is invalid.

boolean isDismissable()

Gets if the node can be dismissed.

boolean isEditable()

Gets if the node is editable.

boolean isEnabled()

Gets whether this node is enabled.

boolean isFocusable()

Gets whether this node is focusable.

boolean isFocused()

Gets whether this node is focused.

boolean isImportantForAccessibility()

Returns whether the node originates from a view considered important for accessibility.

boolean isLongClickable()

Gets whether this node is long clickable.

boolean isMultiLine()

Gets if the node is a multi line editable text.

boolean isPassword()

Gets whether this node is a password.

boolean isScrollable()

Gets if the node is scrollable.

boolean isSelected()

Gets whether this node is selected.

boolean isVisibleToUser()

Sets whether this node is visible to the user.

static AccessibilityNodeInfoCompat obtain(View root, int virtualDescendantId)

Returns a cached instance if such is available otherwise a new one and sets the source.

static AccessibilityNodeInfoCompat obtain(AccessibilityNodeInfoCompat info)

Returns a cached instance if such is available or a new one is create.

static AccessibilityNodeInfoCompat obtain()

Returns a cached instance if such is available otherwise a new one.

static AccessibilityNodeInfoCompat obtain(View source)

Returns a cached instance if such is available otherwise a new one and sets the source.

boolean performAction(int action, Bundle arguments)

Performs an action on the node.

boolean performAction(int action)

Performs an action on the node.

void recycle()

Return an instance back to be reused.

boolean refresh()

Refreshes this info with the latest state of the view it represents.

boolean removeAction(AccessibilityNodeInfoCompat.AccessibilityActionCompat action)

Removes an action that can be performed on the node.

boolean removeChild(View root, int virtualDescendantId)

Removes a virtual child which is a descendant of the given root.

boolean removeChild(View child)

Removes a child.

void setAccessibilityFocused(boolean focused)

Sets whether this node is accessibility focused.

void setBoundsInParent(Rect bounds)

Sets the node bounds in parent coordinates.

void setBoundsInScreen(Rect bounds)

Sets the node bounds in screen coordinates.

void setCanOpenPopup(boolean opensPopup)

Sets if this node opens a popup or a dialog.

void setCheckable(boolean checkable)

Sets whether this node is checkable.

void setChecked(boolean checked)

Sets whether this node is checked.

void setClassName(CharSequence className)

Sets the class this node comes from.

void setClickable(boolean clickable)

Sets whether this node is clickable.

void setCollectionInfo(Object collectionInfo)
void setCollectionItemInfo(Object collectionItemInfo)
void setContentDescription(CharSequence contentDescription)

Sets the content description of this node.

void setContentInvalid(boolean contentInvalid)

Sets if the content of this node is invalid.

void setDismissable(boolean dismissable)

Sets if the node can be dismissed.

void setDrawingOrder(int drawingOrderInParent)

Set the drawing order of the view corresponding it this node.

void setEditable(boolean editable)

Sets whether this node is editable.

void setEnabled(boolean enabled)

Sets whether this node is enabled.

void setError(CharSequence error)

Sets the error text of this node.

void setFocusable(boolean focusable)

Sets whether this node is focusable.

void setFocused(boolean focused)

Sets whether this node is focused.

void setImportantForAccessibility(boolean important)

Sets whether the node is considered important for accessibility.

void setInputType(int inputType)

Sets the input type of the source as defined by InputType.

void setLabelFor(View root, int virtualDescendantId)

Sets the view for which the view represented by this info serves as a label for accessibility purposes.

void setLabelFor(View labeled)

Sets the view for which the view represented by this info serves as a label for accessibility purposes.

void setLabeledBy(View label)

Sets the view which serves as the label of the view represented by this info for accessibility purposes.

void setLabeledBy(View root, int virtualDescendantId)

Sets the view which serves as the label of the view represented by this info for accessibility purposes.

void setLiveRegion(int mode)

Sets the node's live region mode.

void setLongClickable(boolean longClickable)

Sets whether this node is long clickable.

void setMaxTextLength(int max)

Sets the maximum text length, or -1 for no limit.

void setMovementGranularities(int granularities)

Sets the movement granularities for traversing the text of this node.

void setMultiLine(boolean multiLine)

Sets if the node is a multi line editable text.

void setPackageName(CharSequence packageName)

Sets the package this node comes from.

void setParent(View root, int virtualDescendantId)

Sets the parent to be a virtual descendant of the given root.

void setParent(View parent)

Sets the parent.

void setPassword(boolean password)

Sets whether this node is a password.

void setRangeInfo(AccessibilityNodeInfoCompat.RangeInfoCompat rangeInfo)

Sets the range info if this node is a range.

void setRoleDescription(CharSequence roleDescription)

Sets the custom role description.

void setScrollable(boolean scrollable)

Sets if the node is scrollable.

void setSelected(boolean selected)

Sets whether this node is selected.

void setSource(View source)

Sets the source.

void setSource(View root, int virtualDescendantId)

Sets the source to be a virtual descendant of the given root.

void setText(CharSequence text)

Sets the text of this node.

void setTextSelection(int start, int end)

Sets the text selection start and end.

void setTraversalAfter(View view)

Sets the view whose node is visited after this one in accessibility traversal.

void setTraversalAfter(View root, int virtualDescendantId)

Sets the node after which this one is visited in accessibility traversal.

void setTraversalBefore(View view)

Sets the view before whose node this one should be visited during traversal.

void setTraversalBefore(View root, int virtualDescendantId)

Sets the node before which this one is visited during traversal.

void setViewIdResourceName(String viewId)

Sets the fully qualified resource name of the source view's id.

void setVisibleToUser(boolean visibleToUser)

Sets whether this node is visible to the user.

String toString()

Returns a string representation of the object.

Inherited methods

From class java.lang.Object

Constants

ACTION_ACCESSIBILITY_FOCUS

int ACTION_ACCESSIBILITY_FOCUS

Action that gives accessibility focus to the node.

Constant Value: 64 (0x00000040)

ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN

String ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN

Argument for whether when moving at granularity to extend the selection or to move it otherwise.

Type: boolean
Actions: ACTION_NEXT_AT_MOVEMENT_GRANULARITY, ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY

See also:

Constant Value: "ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN"

ACTION_ARGUMENT_HTML_ELEMENT_STRING

String ACTION_ARGUMENT_HTML_ELEMENT_STRING

Argument for which HTML element to get moving to the next/previous HTML element.

Type: String
Actions: ACTION_NEXT_HTML_ELEMENT, ACTION_PREVIOUS_HTML_ELEMENT

Constant Value: "ACTION_ARGUMENT_HTML_ELEMENT_STRING"

ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT

String ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT

Argument for which movement granularity to be used when traversing the node text.

Type: int
Actions: ACTION_NEXT_AT_MOVEMENT_GRANULARITY, ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY

Constant Value: "ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT"

ACTION_ARGUMENT_SELECTION_END_INT

String ACTION_ARGUMENT_SELECTION_END_INT

Argument for specifying the selection end.

Type: int
Actions: ACTION_SET_SELECTION

See also:

Constant Value: "ACTION_ARGUMENT_SELECTION_END_INT"

ACTION_ARGUMENT_SELECTION_START_INT

String ACTION_ARGUMENT_SELECTION_START_INT

Argument for specifying the selection start.

Type: int
Actions: ACTION_SET_SELECTION

See also:

Constant Value: "ACTION_ARGUMENT_SELECTION_START_INT"

ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE

String ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE

Argument for specifying the text content to set

Type: CharSequence
Actions: ACTION_SET_TEXT

See also:

Constant Value: "ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE"

ACTION_CLEAR_ACCESSIBILITY_FOCUS

int ACTION_CLEAR_ACCESSIBILITY_FOCUS

Action that clears accessibility focus of the node.

Constant Value: 128 (0x00000080)

ACTION_CLEAR_FOCUS

int ACTION_CLEAR_FOCUS

Action that unfocuses the node.

Constant Value: 2 (0x00000002)

ACTION_CLEAR_SELECTION

int ACTION_CLEAR_SELECTION

Action that unselects the node.

Constant Value: 8 (0x00000008)

ACTION_CLICK

int ACTION_CLICK

Action that clicks on the node info.

Constant Value: 16 (0x00000010)

ACTION_COLLAPSE

int ACTION_COLLAPSE

Action to collapse an expandable node.

Constant Value: 524288 (0x00080000)

ACTION_COPY

int ACTION_COPY

Action to copy the current selection to the clipboard.

Constant Value: 16384 (0x00004000)

ACTION_CUT

int ACTION_CUT

Action to cut the current selection and place it to the clipboard.

Constant Value: 65536 (0x00010000)

ACTION_DISMISS

int ACTION_DISMISS

Action to dismiss a dismissable node.

Constant Value: 1048576 (0x00100000)

ACTION_EXPAND

int ACTION_EXPAND

Action to expand an expandable node.

Constant Value: 262144 (0x00040000)

ACTION_FOCUS

int ACTION_FOCUS

Action that focuses the node.

Constant Value: 1 (0x00000001)

ACTION_LONG_CLICK

int ACTION_LONG_CLICK

Action that long clicks on the node.

Constant Value: 32 (0x00000020)

ACTION_NEXT_AT_MOVEMENT_GRANULARITY

int ACTION_NEXT_AT_MOVEMENT_GRANULARITY

Action that requests to go to the next entity in this node's text at a given movement granularity. For example, move to the next character, word, etc.

Arguments: ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT<, ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN
Example: Move to the previous character and do not extend selection.

Bundle arguments = new Bundle(); arguments.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT, AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER); arguments.putBoolean(AccessibilityNodeInfo.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN, false); info.performAction(AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY, arguments);

See also:

Constant Value: 256 (0x00000100)

ACTION_NEXT_HTML_ELEMENT

int ACTION_NEXT_HTML_ELEMENT

Action to move to the next HTML element of a given type. For example, move to the BUTTON, INPUT, TABLE, etc.

Arguments: ACTION_ARGUMENT_HTML_ELEMENT_STRING
Example:

Bundle arguments = new Bundle(); arguments.putString(AccessibilityNodeInfo.ACTION_ARGUMENT_HTML_ELEMENT_STRING, "BUTTON"); info.performAction(AccessibilityNodeInfo.ACTION_NEXT_HTML_ELEMENT, arguments);

Constant Value: 1024 (0x00000400)

ACTION_PASTE

int ACTION_PASTE

Action to paste the current clipboard content.

Constant Value: 32768 (0x00008000)

ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY

int ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY

Action that requests to go to the previous entity in this node's text at a given movement granularity. For example, move to the next character, word, etc.

Arguments: ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT<, ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN
Example: Move to the next character and do not extend selection.

Bundle arguments = new Bundle(); arguments.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_MOVEMENT_GRANULARITY_INT, AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER); arguments.putBoolean(AccessibilityNodeInfo.ACTION_ARGUMENT_EXTEND_SELECTION_BOOLEAN, false); info.performAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY, arguments);

See also:

Constant Value: 512 (0x00000200)

ACTION_PREVIOUS_HTML_ELEMENT

int ACTION_PREVIOUS_HTML_ELEMENT

Action to move to the previous HTML element of a given type. For example, move to the BUTTON, INPUT, TABLE, etc.

Arguments: ACTION_ARGUMENT_HTML_ELEMENT_STRING
Example:

Bundle arguments = new Bundle(); arguments.putString(AccessibilityNodeInfo.ACTION_ARGUMENT_HTML_ELEMENT_STRING, "BUTTON"); info.performAction(AccessibilityNodeInfo.ACTION_PREVIOUS_HTML_ELEMENT, arguments);

Constant Value: 2048 (0x00000800)

ACTION_SCROLL_BACKWARD

int ACTION_SCROLL_BACKWARD

Action to scroll the node content backward.

Constant Value: 8192 (0x00002000)

ACTION_SCROLL_FORWARD

int ACTION_SCROLL_FORWARD

Action to scroll the node content forward.

Constant Value: 4096 (0x00001000)

ACTION_SELECT

int ACTION_SELECT

Action that selects the node.

Constant Value: 4 (0x00000004)

ACTION_SET_SELECTION

int ACTION_SET_SELECTION

Action to set the selection. Performing this action with no arguments clears the selection.

Arguments: ACTION_ARGUMENT_SELECTION_START_INT, ACTION_ARGUMENT_SELECTION_END_INT
Example:

Bundle arguments = new Bundle(); arguments.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_START_INT, 1); arguments.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_END_INT, 2); info.performAction(AccessibilityNodeInfo.ACTION_SET_SELECTION, arguments);

See also:

Constant Value: 131072 (0x00020000)

ACTION_SET_TEXT

int ACTION_SET_TEXT

Action that sets the text of the node. Performing the action without argument, using null or empty CharSequence will clear the text. This action will also put the cursor at the end of text.

Arguments: ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE
Example:

Bundle arguments = new Bundle(); arguments.putCharSequence(AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE, "android"); info.performAction(AccessibilityNodeInfo.ACTION_SET_TEXT, arguments);

Constant Value: 2097152 (0x00200000)

FOCUS_ACCESSIBILITY

int FOCUS_ACCESSIBILITY

The accessibility focus.

Constant Value: 2 (0x00000002)

FOCUS_INPUT

int FOCUS_INPUT

The input focus.

Constant Value: 1 (0x00000001)

MOVEMENT_GRANULARITY_CHARACTER

int MOVEMENT_GRANULARITY_CHARACTER

Movement granularity bit for traversing the text of a node by character.

Constant Value: 1 (0x00000001)

MOVEMENT_GRANULARITY_LINE

int MOVEMENT_GRANULARITY_LINE

Movement granularity bit for traversing the text of a node by line.

Constant Value: 4 (0x00000004)

MOVEMENT_GRANULARITY_PAGE

int MOVEMENT_GRANULARITY_PAGE

Movement granularity bit for traversing the text of a node by page.

Constant Value: 16 (0x00000010)

MOVEMENT_GRANULARITY_PARAGRAPH

int MOVEMENT_GRANULARITY_PARAGRAPH

Movement granularity bit for traversing the text of a node by paragraph.

Constant Value: 8 (0x00000008)

MOVEMENT_GRANULARITY_WORD

int MOVEMENT_GRANULARITY_WORD

Movement granularity bit for traversing the text of a node by word.

Constant Value: 2 (0x00000002)

Public constructors

AccessibilityNodeInfoCompat

AccessibilityNodeInfoCompat (Object info)

Creates a new instance wrapping an AccessibilityNodeInfo.

Parameters
info Object: The info.

Public methods

addAction

void addAction (int action)

Adds an action that can be performed on the node.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
action int: The action.
Throws
IllegalStateException If called from an AccessibilityService.

addAction

void addAction (AccessibilityNodeInfoCompat.AccessibilityActionCompat action)

Adds an action that can be performed on the node.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
action AccessibilityNodeInfoCompat.AccessibilityActionCompat: The action.
Throws
IllegalStateException If called from an AccessibilityService.

addChild

void addChild (View root, 
                int virtualDescendantId)

Adds a virtual child which is a descendant of the given root. If virtualDescendantId is NO_ID the root is added as a child.

A virtual descendant is an imaginary View that is reported as a part of the view hierarchy for accessibility purposes. This enables custom views that draw complex content to report them selves as a tree of virtual views, thus conveying their logical structure.

Parameters
root View: The root of the virtual subtree.
virtualDescendantId int: The id of the virtual child.

addChild

void addChild (View child)

Adds a child.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
child View: The child.
Throws
IllegalStateException If called from an AccessibilityService.

canOpenPopup

boolean canOpenPopup ()

Gets if this node opens a popup or a dialog.

Returns
boolean If the the node opens a popup.

equals

boolean equals (Object obj)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Parameters
obj Object: the reference object with which to compare.
Returns
boolean true if this object is the same as the obj argument; false otherwise.

findAccessibilityNodeInfosByText

List<AccessibilityNodeInfoCompat> findAccessibilityNodeInfosByText (String text)

Finds AccessibilityNodeInfos by text. The match is case insensitive containment. The search is relative to this info i.e. this info is the root of the traversed tree.

Note: It is a client responsibility to recycle the received info by calling recycle() to avoid creating of multiple instances.

Parameters
text String: The searched text.
Returns
List<AccessibilityNodeInfoCompat> A list of node info.

findAccessibilityNodeInfosByViewId

List<AccessibilityNodeInfoCompat> findAccessibilityNodeInfosByViewId (String viewId)

Finds AccessibilityNodeInfoCompats by the fully qualified view id's resource name where a fully qualified id is of the from "package:id/id_resource_name". For example, if the target application's package is "foo.bar" and the id resource name is "baz", the fully qualified resource id is "foo.bar:id/baz".

Note: It is a client responsibility to recycle the received info by calling recycle() to avoid creating of multiple instances.

Note: The primary usage of this API is for UI test automation and in order to report the fully qualified view id if an AccessibilityNodeInfoCompat the client has to set the FLAG_REPORT_VIEW_IDS flag when configuring his AccessibilityService.

Parameters
viewId String: The fully qualified resource name of the view id to find.
Returns
List<AccessibilityNodeInfoCompat> A list of node info.

findFocus

AccessibilityNodeInfoCompat findFocus (int focus)

Find the view that has the specified focus type. The search starts from the view represented by this node info.

Parameters
focus int: The focus to find. One of FOCUS_INPUT or FOCUS_ACCESSIBILITY.
Returns
AccessibilityNodeInfoCompat The node info of the focused view or null.

See also:

focusSearch

AccessibilityNodeInfoCompat focusSearch (int direction)

Searches for the nearest view in the specified direction that can take input focus.

Parameters
direction int: The direction. Can be one of: FOCUS_DOWN, FOCUS_UP, FOCUS_LEFT, FOCUS_RIGHT, FOCUS_FORWARD, FOCUS_BACKWARD.
Returns
AccessibilityNodeInfoCompat The node info for the view that can take accessibility focus.

getActionList

List<AccessibilityNodeInfoCompat.AccessibilityActionCompat> getActionList ()

Gets the actions that can be performed on the node.

Returns
List<AccessibilityNodeInfoCompat.AccessibilityActionCompat> A list of AccessibilityActions.

getActions

int getActions ()

Gets the actions that can be performed on the node.

Returns
int The bit mask of with actions.

See also:

getBoundsInParent

void getBoundsInParent (Rect outBounds)

Gets the node bounds in parent coordinates.

Parameters
outBounds Rect: The output node bounds.

getBoundsInScreen

void getBoundsInScreen (Rect outBounds)

Gets the node bounds in screen coordinates.

Parameters
outBounds Rect: The output node bounds.

getChild

AccessibilityNodeInfoCompat getChild (int index)

Get the child at given index.

Note: It is a client responsibility to recycle the received info by calling recycle() to avoid creating of multiple instances.

Parameters
index int: The child index.
Returns
AccessibilityNodeInfoCompat The child node.
Throws
IllegalStateException If called outside of an AccessibilityService.

getChildCount

int getChildCount ()

Gets the number of children.

Returns
int The child count.

getClassName

CharSequence getClassName ()

Gets the class this node comes from.

Returns
CharSequence The class name.

getCollectionInfo

AccessibilityNodeInfoCompat.CollectionInfoCompat getCollectionInfo ()

Gets the collection info if the node is a collection. A collection child is always a collection item.

Returns
AccessibilityNodeInfoCompat.CollectionInfoCompat The collection info.

getCollectionItemInfo

AccessibilityNodeInfoCompat.CollectionItemInfoCompat getCollectionItemInfo ()

Gets the collection item info if the node is a collection item. A collection item is always a child of a collection.

Returns
AccessibilityNodeInfoCompat.CollectionItemInfoCompat The collection item info.

getContentDescription

CharSequence getContentDescription ()

Gets the content description of this node.

Returns
CharSequence The content description.

getDrawingOrder

int getDrawingOrder ()

Get the drawing order of the view corresponding it this node.

Drawing order is determined only within the node's parent, so this index is only relative to its siblings.

In some cases, the drawing order is essentially simultaneous, so it is possible for two siblings to return the same value. It is also possible that values will be skipped.

Returns
int The drawing position of the view corresponding to this node relative to its siblings.

getError

CharSequence getError ()

Gets the error text of this node.

Returns
CharSequence The error text.

getExtras

Bundle getExtras ()

Gets an optional bundle with extra data. The bundle is lazily created and never null.

Note: It is recommended to use the package name of your application as a prefix for the keys to avoid collisions which may confuse an accessibility service if the same key has different meaning when emitted from different applications.

Returns
Bundle The bundle.

getInfo

Object getInfo ()

Returns
Object The wrapped AccessibilityNodeInfo.

getInputType

int getInputType ()

Gets the input type of the source as defined by InputType.

Returns
int The input type.

getLabelFor

AccessibilityNodeInfoCompat getLabelFor ()

Gets the node info for which the view represented by this info serves as a label for accessibility purposes.

Note: It is a client responsibility to recycle the received info by calling recycle() to avoid creating of multiple instances.

Returns
AccessibilityNodeInfoCompat The labeled info.

getLabeledBy

AccessibilityNodeInfoCompat getLabeledBy ()

Gets the node info which serves as the label of the view represented by this info for accessibility purposes.

Note: It is a client responsibility to recycle the received info by calling recycle() to avoid creating of multiple instances.

Returns
AccessibilityNodeInfoCompat The label.

getLiveRegion

int getLiveRegion ()

Gets the node's live region mode.

A live region is a node that contains information that is important for the user and when it changes the user should be notified. For example, in a login screen with a TextView that displays an "incorrect password" notification, that view should be marked as a live region with mode ACCESSIBILITY_LIVE_REGION_POLITE.

It is the responsibility of the accessibility service to monitor TYPE_WINDOW_CONTENT_CHANGED events indicating changes to live region nodes and their children.

Returns
int The live region mode, or ACCESSIBILITY_LIVE_REGION_NONE if the view is not a live region.

See also:

getMaxTextLength

int getMaxTextLength ()

Returns the maximum text length for this node.

Returns
int The maximum text length, or -1 for no limit.

See also:

getMovementGranularities

int getMovementGranularities ()

Gets the movement granularities for traversing the text of this node.

Returns
int The bit mask with granularities.

getPackageName

CharSequence getPackageName ()

Gets the package this node comes from.

Returns
CharSequence The package name.

getParent

AccessibilityNodeInfoCompat getParent ()

Gets the parent.

Note: It is a client responsibility to recycle the received info by calling recycle() to avoid creating of multiple instances.

Returns
AccessibilityNodeInfoCompat The parent.

getRangeInfo

AccessibilityNodeInfoCompat.RangeInfoCompat getRangeInfo ()

Gets the range info if this node is a range.

Returns
AccessibilityNodeInfoCompat.RangeInfoCompat The range.

getRoleDescription

CharSequence getRoleDescription ()

Gets the custom role description.

Returns
CharSequence The role description.

getText

CharSequence getText ()

Gets the text of this node.

Returns
CharSequence The text.

getTextSelectionEnd

int getTextSelectionEnd ()

Gets the text selection end.

Returns
int The text selection end if there is selection or -1.

getTextSelectionStart

int getTextSelectionStart ()

Gets the text selection start.

Returns
int The text selection start if there is selection or -1.

getTraversalAfter

AccessibilityNodeInfoCompat getTraversalAfter ()

Gets the node after which this one is visited in accessibility traversal. A screen-reader must visit the content of the other node before the content of this one.

Returns
AccessibilityNodeInfoCompat The succeeding node if such or null.

See also:

getTraversalBefore

AccessibilityNodeInfoCompat getTraversalBefore ()

Gets the node before which this one is visited during traversal. A screen-reader must visit the content of this node before the content of the one it precedes.

Returns
AccessibilityNodeInfoCompat The succeeding node if such or null.

See also:

getViewIdResourceName

String getViewIdResourceName ()

Gets the fully qualified resource name of the source view's id.

Note: The primary usage of this API is for UI test automation and in order to report the source view id of an AccessibilityNodeInfoCompat the client has to set the FLAG_REPORT_VIEW_IDS flag when configuring his AccessibilityService.

Returns
String The id resource name.

getWindow

AccessibilityWindowInfoCompat getWindow ()

Gets the window to which this node belongs.

Returns
AccessibilityWindowInfoCompat The window.

See also:

getWindowId

int getWindowId ()

Gets the id of the window from which the info comes from.

Returns
int The window id.

hashCode

int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)

Returns
int a hash code value for this object.

isAccessibilityFocused

boolean isAccessibilityFocused ()

Gets whether this node is accessibility focused.

Returns
boolean True if the node is accessibility focused.

isCheckable

boolean isCheckable ()

Gets whether this node is checkable.

Returns
boolean True if the node is checkable.

isChecked

boolean isChecked ()

Gets whether this node is checked.

Returns
boolean True if the node is checked.

isClickable

boolean isClickable ()

Gets whether this node is clickable.

Returns
boolean True if the node is clickable.

isContentInvalid

boolean isContentInvalid ()

Gets if the content of this node is invalid. For example, a date is not well-formed.

Returns
boolean If the node content is invalid.

isDismissable

boolean isDismissable ()

Gets if the node can be dismissed.

Returns
boolean If the node can be dismissed.

isEditable

boolean isEditable ()

Gets if the node is editable.

Returns
boolean True if the node is editable, false otherwise.

isEnabled

boolean isEnabled ()

Gets whether this node is enabled.

Returns
boolean True if the node is enabled.

isFocusable

boolean isFocusable ()

Gets whether this node is focusable.

Returns
boolean True if the node is focusable.

isFocused

boolean isFocused ()

Gets whether this node is focused.

Returns
boolean True if the node is focused.

isImportantForAccessibility

boolean isImportantForAccessibility ()

Returns whether the node originates from a view considered important for accessibility.

Returns
boolean true if the node originates from a view considered important for accessibility, false otherwise

See also:

isLongClickable

boolean isLongClickable ()

Gets whether this node is long clickable.

Returns
boolean True if the node is long clickable.

isMultiLine

boolean isMultiLine ()

Gets if the node is a multi line editable text.

Returns
boolean True if the node is multi line.

isPassword

boolean isPassword ()

Gets whether this node is a password.

Returns
boolean True if the node is a password.

isScrollable

boolean isScrollable ()

Gets if the node is scrollable.

Returns
boolean True if the node is scrollable, false otherwise.

isSelected

boolean isSelected ()

Gets whether this node is selected.

Returns
boolean True if the node is selected.

isVisibleToUser

boolean isVisibleToUser ()

Sets whether this node is visible to the user.

Returns
boolean Whether the node is visible to the user.

obtain

AccessibilityNodeInfoCompat obtain (View root, 
                int virtualDescendantId)

Returns a cached instance if such is available otherwise a new one and sets the source.

Parameters
root View: The root of the virtual subtree.
virtualDescendantId int: The id of the virtual descendant.
Returns
AccessibilityNodeInfoCompat An instance.

See also:

obtain

AccessibilityNodeInfoCompat obtain (AccessibilityNodeInfoCompat info)

Returns a cached instance if such is available or a new one is create. The returned instance is initialized from the given info.

Parameters
info AccessibilityNodeInfoCompat: The other info.
Returns
AccessibilityNodeInfoCompat An instance.

obtain

AccessibilityNodeInfoCompat obtain ()

Returns a cached instance if such is available otherwise a new one.

Returns
AccessibilityNodeInfoCompat An instance.

obtain

AccessibilityNodeInfoCompat obtain (View source)

Returns a cached instance if such is available otherwise a new one and sets the source.

Parameters
source View
Returns
AccessibilityNodeInfoCompat An instance.

See also:

performAction

boolean performAction (int action, 
                Bundle arguments)

Performs an action on the node.

Note: An action can be performed only if the request is made from an AccessibilityService.

Parameters
action int: The action to perform.
arguments Bundle: A bundle with additional arguments.
Returns
boolean True if the action was performed.
Throws
IllegalStateException If called outside of an AccessibilityService.

performAction

boolean performAction (int action)

Performs an action on the node.

Note: An action can be performed only if the request is made from an AccessibilityService.

Parameters
action int: The action to perform.
Returns
boolean True if the action was performed.
Throws
IllegalStateException If called outside of an AccessibilityService.

recycle

void recycle ()

Return an instance back to be reused.

Note: You must not touch the object after calling this function.

Throws
IllegalStateException If the info is already recycled.

refresh

boolean refresh ()

Refreshes this info with the latest state of the view it represents.

Note: If this method returns false this info is obsolete since it represents a view that is no longer in the view tree and should be recycled.

Returns
boolean Whether the refresh succeeded.

removeAction

boolean removeAction (AccessibilityNodeInfoCompat.AccessibilityActionCompat action)

Removes an action that can be performed on the node. If the action was not already added to the node, calling this method has no effect.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
action AccessibilityNodeInfoCompat.AccessibilityActionCompat: The action to be removed.
Returns
boolean The action removed from the list of actions.
Throws
IllegalStateException If called from an AccessibilityService.

removeChild

boolean removeChild (View root, 
                int virtualDescendantId)

Removes a virtual child which is a descendant of the given root. If the child was not previously added to the node, calling this method has no effect.

Parameters
root View: The root of the virtual subtree.
virtualDescendantId int: The id of the virtual child.
Returns
boolean true if the child was present

See also:

removeChild

boolean removeChild (View child)

Removes a child. If the child was not previously added to the node, calling this method has no effect.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
child View: The child.
Returns
boolean true if the child was present
Throws
IllegalStateException If called from an AccessibilityService.

setAccessibilityFocused

void setAccessibilityFocused (boolean focused)

Sets whether this node is accessibility focused.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
focused boolean: True if the node is accessibility focused.
Throws
IllegalStateException If called from an AccessibilityService.

setBoundsInParent

void setBoundsInParent (Rect bounds)

Sets the node bounds in parent coordinates.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
bounds Rect: The node bounds.
Throws
IllegalStateException If called from an AccessibilityService.

setBoundsInScreen

void setBoundsInScreen (Rect bounds)

Sets the node bounds in screen coordinates.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
bounds Rect: The node bounds.
Throws
IllegalStateException If called from an AccessibilityService.

setCanOpenPopup

void setCanOpenPopup (boolean opensPopup)

Sets if this node opens a popup or a dialog.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
opensPopup boolean: If the the node opens a popup.

setCheckable

void setCheckable (boolean checkable)

Sets whether this node is checkable.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
checkable boolean: True if the node is checkable.
Throws
IllegalStateException If called from an AccessibilityService.

setChecked

void setChecked (boolean checked)

Sets whether this node is checked.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
checked boolean: True if the node is checked.
Throws
IllegalStateException If called from an AccessibilityService.

setClassName

void setClassName (CharSequence className)

Sets the class this node comes from.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
className CharSequence: The class name.
Throws
IllegalStateException If called from an AccessibilityService.

setClickable

void setClickable (boolean clickable)

Sets whether this node is clickable.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
clickable boolean: True if the node is clickable.
Throws
IllegalStateException If called from an AccessibilityService.

setCollectionInfo

void setCollectionInfo (Object collectionInfo)

Parameters
collectionInfo Object

setCollectionItemInfo

void setCollectionItemInfo (Object collectionItemInfo)

Parameters
collectionItemInfo Object

setContentDescription

void setContentDescription (CharSequence contentDescription)

Sets the content description of this node.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
contentDescription CharSequence: The content description.
Throws
IllegalStateException If called from an AccessibilityService.

setContentInvalid

void setContentInvalid (boolean contentInvalid)

Sets if the content of this node is invalid. For example, a date is not well-formed.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
contentInvalid boolean: If the node content is invalid.

setDismissable

void setDismissable (boolean dismissable)

Sets if the node can be dismissed.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
dismissable boolean: If the node can be dismissed.

setDrawingOrder

void setDrawingOrder (int drawingOrderInParent)

Set the drawing order of the view corresponding it this node.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Throws
IllegalStateException If called from an AccessibilityService.

setEditable

void setEditable (boolean editable)

Sets whether this node is editable.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
editable boolean: True if the node is editable.
Throws
IllegalStateException If called from an AccessibilityService.

setEnabled

void setEnabled (boolean enabled)

Sets whether this node is enabled.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
enabled boolean: True if the node is enabled.
Throws
IllegalStateException If called from an AccessibilityService.

setError

void setError (CharSequence error)

Sets the error text of this node.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
error CharSequence: The error text.
Throws
IllegalStateException If called from an AccessibilityService.

setFocusable

void setFocusable (boolean focusable)

Sets whether this node is focusable.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
focusable boolean: True if the node is focusable.
Throws
IllegalStateException If called from an AccessibilityService.

setFocused

void setFocused (boolean focused)

Sets whether this node is focused.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
focused boolean: True if the node is focused.
Throws
IllegalStateException If called from an AccessibilityService.

setImportantForAccessibility

void setImportantForAccessibility (boolean important)

Sets whether the node is considered important for accessibility.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
important boolean: true if the node is considered important for accessibility, false otherwise

setInputType

void setInputType (int inputType)

Sets the input type of the source as defined by InputType.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
inputType int: The input type.
Throws
IllegalStateException If called from an AccessibilityService.

setLabelFor

void setLabelFor (View root, 
                int virtualDescendantId)

Sets the view for which the view represented by this info serves as a label for accessibility purposes. If virtualDescendantId is NO_ID the root is set as the labeled.

A virtual descendant is an imaginary View that is reported as a part of the view hierarchy for accessibility purposes. This enables custom views that draw complex content to report themselves as a tree of virtual views, thus conveying their logical structure.

Parameters
root View: The root whose virtual descendant serves as a label.
virtualDescendantId int: The id of the virtual descendant.

setLabelFor

void setLabelFor (View labeled)

Sets the view for which the view represented by this info serves as a label for accessibility purposes.

Parameters
labeled View: The view for which this info serves as a label.

setLabeledBy

void setLabeledBy (View label)

Sets the view which serves as the label of the view represented by this info for accessibility purposes.

Parameters
label View: The view that labels this node's source.

setLabeledBy

void setLabeledBy (View root, 
                int virtualDescendantId)

Sets the view which serves as the label of the view represented by this info for accessibility purposes. If virtualDescendantId is NO_ID the root is set as the label.

A virtual descendant is an imaginary View that is reported as a part of the view hierarchy for accessibility purposes. This enables custom views that draw complex content to report themselves as a tree of virtual views, thus conveying their logical structure.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
root View: The root whose virtual descendant labels this node's source.
virtualDescendantId int: The id of the virtual descendant.

setLiveRegion

void setLiveRegion (int mode)

Sets the node's live region mode.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
mode int: The live region mode, or ACCESSIBILITY_LIVE_REGION_NONE if the view is not a live region.

See also:

setLongClickable

void setLongClickable (boolean longClickable)

Sets whether this node is long clickable.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
longClickable boolean: True if the node is long clickable.
Throws
IllegalStateException If called from an AccessibilityService.

setMaxTextLength

void setMaxTextLength (int max)

Sets the maximum text length, or -1 for no limit.

Typically used to indicate that an editable text field has a limit on the number of characters entered.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
max int: The maximum text length.
Throws
IllegalStateException If called from an AccessibilityService.

See also:

setMovementGranularities

void setMovementGranularities (int granularities)

Sets the movement granularities for traversing the text of this node.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
granularities int: The bit mask with granularities.
Throws
IllegalStateException If called from an AccessibilityService.

setMultiLine

void setMultiLine (boolean multiLine)

Sets if the node is a multi line editable text.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
multiLine boolean: True if the node is multi line.

setPackageName

void setPackageName (CharSequence packageName)

Sets the package this node comes from.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
packageName CharSequence: The package name.
Throws
IllegalStateException If called from an AccessibilityService.

setParent

void setParent (View root, 
                int virtualDescendantId)

Sets the parent to be a virtual descendant of the given root. If virtualDescendantId equals to NO_ID the root is set as the parent.

A virtual descendant is an imaginary View that is reported as a part of the view hierarchy for accessibility purposes. This enables custom views that draw complex content to report them selves as a tree of virtual views, thus conveying their logical structure.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
root View: The root of the virtual subtree.
virtualDescendantId int: The id of the virtual descendant.

setParent

void setParent (View parent)

Sets the parent.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
parent View: The parent.
Throws
IllegalStateException If called from an AccessibilityService.

setPassword

void setPassword (boolean password)

Sets whether this node is a password.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
password boolean: True if the node is a password.
Throws
IllegalStateException If called from an AccessibilityService.

setRangeInfo

void setRangeInfo (AccessibilityNodeInfoCompat.RangeInfoCompat rangeInfo)

Sets the range info if this node is a range.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
rangeInfo AccessibilityNodeInfoCompat.RangeInfoCompat: The range info.

setRoleDescription

void setRoleDescription (CharSequence roleDescription)

Sets the custom role description.

The role description allows you to customize the name for the view's semantic role. For example, if you create a custom subclass of View to display a menu bar, you could assign it the role description of "menu bar".

Warning: For consistency with other applications, you should not use the role description to force accessibility services to describe standard views (such as buttons or checkboxes) using specific wording. For example, you should not set a role description of "check box" or "tick box" for a standard CheckBox. Instead let accessibility services decide what feedback to provide.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
roleDescription CharSequence: The role description.

setScrollable

void setScrollable (boolean scrollable)

Sets if the node is scrollable.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
scrollable boolean: True if the node is scrollable, false otherwise.
Throws
IllegalStateException If called from an AccessibilityService.

setSelected

void setSelected (boolean selected)

Sets whether this node is selected.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
selected boolean: True if the node is selected.
Throws
IllegalStateException If called from an AccessibilityService.

setSource

void setSource (View source)

Sets the source.

Parameters
source View: The info source.

setSource

void setSource (View root, 
                int virtualDescendantId)

Sets the source to be a virtual descendant of the given root. If virtualDescendantId is NO_ID the root is set as the source.

A virtual descendant is an imaginary View that is reported as a part of the view hierarchy for accessibility purposes. This enables custom views that draw complex content to report themselves as a tree of virtual views, thus conveying their logical structure.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
root View: The root of the virtual subtree.
virtualDescendantId int: The id of the virtual descendant.

setText

void setText (CharSequence text)

Sets the text of this node.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
text CharSequence: The text.
Throws
IllegalStateException If called from an AccessibilityService.

setTextSelection

void setTextSelection (int start, 
                int end)

Sets the text selection start and end.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
start int: The text selection start.
end int: The text selection end.
Throws
IllegalStateException If called from an AccessibilityService.

setTraversalAfter

void setTraversalAfter (View view)

Sets the view whose node is visited after this one in accessibility traversal. A screen-reader must visit the content of the other node before the content of this one.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
view View: The previous view.

See also:

setTraversalAfter

void setTraversalAfter (View root, 
                int virtualDescendantId)

Sets the node after which this one is visited in accessibility traversal. A screen-reader must visit the content of the other node before the content of this one. If virtualDescendantId equals to NO_ID the root is set as the predecessor.

A virtual descendant is an imaginary View that is reported as a part of the view hierarchy for accessibility purposes. This enables custom views that draw complex content to report them selves as a tree of virtual views, thus conveying their logical structure.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
root View: The root of the virtual subtree.
virtualDescendantId int: The id of the virtual descendant.

setTraversalBefore

void setTraversalBefore (View view)

Sets the view before whose node this one should be visited during traversal. A screen-reader must visit the content of this node before the content of the one it precedes.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
view View: The view providing the preceding node.

See also:

setTraversalBefore

void setTraversalBefore (View root, 
                int virtualDescendantId)

Sets the node before which this one is visited during traversal. A screen-reader must visit the content of this node before the content of the one it precedes. The successor is a virtual descendant of the given root. If virtualDescendantId equals to NO_ID the root is set as the successor.

A virtual descendant is an imaginary View that is reported as a part of the view hierarchy for accessibility purposes. This enables custom views that draw complex content to report them selves as a tree of virtual views, thus conveying their logical structure.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
root View: The root of the virtual subtree.
virtualDescendantId int: The id of the virtual descendant.

setViewIdResourceName

void setViewIdResourceName (String viewId)

Sets the fully qualified resource name of the source view's id.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
viewId String: The id resource name.

setVisibleToUser

void setVisibleToUser (boolean visibleToUser)

Sets whether this node is visible to the user.

Note: Cannot be called from an AccessibilityService. This class is made immutable before being delivered to an AccessibilityService.

Parameters
visibleToUser boolean: Whether the node is visible to the user.
Throws
IllegalStateException If called from an AccessibilityService.

toString

String toString ()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Returns
String a string representation of the object.
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