AccessibilityWindowInfo
class AccessibilityWindowInfo : Parcelable
kotlin.Any | |
↳ | android.view.accessibility.AccessibilityWindowInfo |
This class represents a state snapshot of a window for accessibility purposes. The screen content contains one or more windows where some windows can be descendants of other windows, which is the windows are hierarchically ordered. Note that there is no root window. Hence, the screen content can be seen as a collection of window trees.
Summary
Constants | |
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static Int |
Window type: Windows that are overlaid only by an for interception of user interactions without changing the windows an accessibility service can introspect. |
static Int |
Window type: This is an application window. |
static Int |
Window type: This is an input method window. |
static Int |
Window type: A system window used to show the UI for the interaction with window-based magnification, which includes the magnified content and the option menu. |
static Int |
Window type: A system window used to divide the screen in split-screen mode. |
static Int |
Window type: This is a system window. |
Inherited constants | |
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Public constructors | |
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Creates a new |
|
Copy constructor. |
Public methods | |
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Int | |
Boolean |
Indicates whether some other object is "equal to" this one. |
AccessibilityNodeInfo! |
Gets the node that anchors this window to another. |
Unit |
getBoundsInScreen(outBounds: Rect!) Gets the bounds of this window in the screen. |
AccessibilityWindowInfo! |
Gets the child window at a given index. |
Int |
Gets the number of child windows. |
Int |
Returns the ID of the display this window is on, for use with |
Int |
getId() Gets the unique window id. |
Int |
getLayer() Gets the layer which determines the Z-order of the window. |
LocaleList |
Return the |
AccessibilityWindowInfo! |
Gets the parent window. |
Unit |
getRegionInScreen(outRegion: Region) Gets the touchable region of this window in the screen. |
AccessibilityNodeInfo! |
getRoot() Gets the root node in the window's hierarchy. |
AccessibilityNodeInfo? |
Gets the root node in the window's hierarchy. |
CharSequence? |
getTitle() Gets the title of the window. |
Long |
Return the |
Int |
getType() Gets the type of the window. |
Int |
hashCode() |
Boolean |
Gets if this window has accessibility focus. |
Boolean |
isActive() Gets if this window is active. |
Boolean |
Gets if this window has input focus. |
Boolean |
Check if the window is in picture-in-picture mode. |
static AccessibilityWindowInfo! |
obtain() Returns a cached instance if such is available or a new one is created. |
static AccessibilityWindowInfo! |
obtain(info: AccessibilityWindowInfo!) Returns a cached instance if such is available or a new one is created. |
Unit |
recycle() Return an instance back to be reused. |
String |
toString() |
Unit |
writeToParcel(parcel: Parcel, flags: Int) |
Properties | |
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static Parcelable.Creator<AccessibilityWindowInfo!> |
Constants
TYPE_ACCESSIBILITY_OVERLAY
static val TYPE_ACCESSIBILITY_OVERLAY: Int
Window type: Windows that are overlaid only by an for interception of user interactions without changing the windows an accessibility service can introspect. In particular, an accessibility service can introspect only windows that a sighted user can interact with which they can touch these windows or can type into these windows. For example, if there is a full screen accessibility overlay that is touchable, the windows below it will be introspectable by an accessibility service regardless they are covered by a touchable window.
Value: 4
TYPE_APPLICATION
static val TYPE_APPLICATION: Int
Window type: This is an application window. Such a window shows UI for interacting with an application.
Value: 1
TYPE_INPUT_METHOD
static val TYPE_INPUT_METHOD: Int
Window type: This is an input method window. Such a window shows UI for inputting text such as keyboard, suggestions, etc.
Value: 2
TYPE_MAGNIFICATION_OVERLAY
static val TYPE_MAGNIFICATION_OVERLAY: Int
Window type: A system window used to show the UI for the interaction with window-based magnification, which includes the magnified content and the option menu.
Value: 6
TYPE_SPLIT_SCREEN_DIVIDER
static val TYPE_SPLIT_SCREEN_DIVIDER: Int
Window type: A system window used to divide the screen in split-screen mode. This type of window is present only in split-screen mode.
Value: 5
TYPE_SYSTEM
static val TYPE_SYSTEM: Int
Window type: This is a system window. Such a window shows UI for interacting with the system.
Value: 3
Public constructors
AccessibilityWindowInfo
AccessibilityWindowInfo()
Creates a new AccessibilityWindowInfo
.
AccessibilityWindowInfo
AccessibilityWindowInfo(info: AccessibilityWindowInfo)
Copy constructor. Creates a new AccessibilityWindowInfo
, and this new instance is initialized from given info
.
Parameters | |
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info |
AccessibilityWindowInfo: The other info. This value cannot be null . |
Public methods
describeContents
fun describeContents(): Int
Return | |
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Int |
a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or android.os.Parcelable#CONTENTS_FILE_DESCRIPTOR |
equals
fun equals(other: Any?): Boolean
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 returntrue
. - It is symmetric: for any non-null reference values
x
andy
,x.equals(y)
should returntrue
if and only ify.equals(x)
returnstrue
. - It is transitive: for any non-null reference values
x
,y
, andz
, ifx.equals(y)
returnstrue
andy.equals(z)
returnstrue
, thenx.equals(z)
should returntrue
. - It is consistent: for any non-null reference values
x
andy
, multiple invocations ofx.equals(y)
consistently returntrue
or consistently returnfalse
, provided no information used inequals
comparisons on the objects is modified. - For any non-null reference value
x
,x.equals(null)
should returnfalse
.
An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.
Parameters | |
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obj |
This value may be null . |
Return | |
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Boolean |
true if this object is the same as the obj argument; false otherwise. |
getAnchor
fun getAnchor(): AccessibilityNodeInfo!
Gets the node that anchors this window to another.
Return | |
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AccessibilityNodeInfo! |
The anchor node, or null if none exists. |
getBoundsInScreen
fun getBoundsInScreen(outBounds: Rect!): Unit
Gets the bounds of this window in the screen. This is equivalent to get the bounds of the Region from getRegionInScreen(android.graphics.Region)
.
Parameters | |
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outBounds |
Rect!: The out window bounds. |
getChild
fun getChild(index: Int): AccessibilityWindowInfo!
Gets the child window at a given index.
Parameters | |
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index |
Int: The index. |
Return | |
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AccessibilityWindowInfo! |
The child. |
getChildCount
fun getChildCount(): Int
Gets the number of child windows.
Return | |
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Int |
The child count. |
getDisplayId
fun getDisplayId(): Int
Returns the ID of the display this window is on, for use with android.hardware.display.DisplayManager#getDisplay(int)
.
Return | |
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Int |
The logical display id. |
getId
fun getId(): Int
Gets the unique window id.
Return | |
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Int |
windowId The window id. |
getLayer
fun getLayer(): Int
Gets the layer which determines the Z-order of the window. Windows with greater layer appear on top of windows with lesser layer.
Return | |
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Int |
The window layer. |
getLocales
fun getLocales(): LocaleList
Return the android.os.LocaleList
of the window.
Return | |
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LocaleList |
the locales of the window. This value cannot be null . |
getParent
fun getParent(): AccessibilityWindowInfo!
Gets the parent window.
Return | |
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AccessibilityWindowInfo! |
The parent window, or null if none exists. |
getRegionInScreen
fun getRegionInScreen(outRegion: Region): Unit
Gets the touchable region of this window in the screen.
Parameters | |
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outRegion |
Region: The out window region. This value cannot be null . |
getRoot
fun getRoot(): AccessibilityNodeInfo!
Gets the root node in the window's hierarchy.
Return | |
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AccessibilityNodeInfo! |
The root node. |
getRoot
fun getRoot(prefetchingStrategy: Int): AccessibilityNodeInfo?
Gets the root node in the window's hierarchy.
Return | |
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AccessibilityNodeInfo? |
The root node. This value may be null . |
getTitle
fun getTitle(): CharSequence?
Gets the title of the window.
Return | |
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CharSequence? |
The title of the window, or null if none is available. |
getTransitionTimeMillis
fun getTransitionTimeMillis(): Long
Return the SystemClock.uptimeMillis()
at which the last transition happens. A transition happens when getBoundsInScreen(android.graphics.Rect)
is changed.
Value is a non-negative timestamp in the android.os.SystemClock#uptimeMillis()
time base.
Return | |
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Long |
The transition timestamp. Value is a non-negative timestamp in the android.os.SystemClock#uptimeMillis() time base. |
isAccessibilityFocused
fun isAccessibilityFocused(): Boolean
Gets if this window has accessibility focus.
Return | |
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Boolean |
Whether has accessibility focus. |
isActive
fun isActive(): Boolean
Gets if this window is active. An active window is the one the user is currently touching or the window has input focus and the user is not touching any window.
This is defined as the window that most recently fired one of the following events: AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED
, AccessibilityEvent.TYPE_VIEW_HOVER_ENTER
, AccessibilityEvent.TYPE_VIEW_HOVER_EXIT
. In other words, the last window shown that also has input focus.
Return | |
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Boolean |
Whether this is the active window. |
isFocused
fun isFocused(): Boolean
Gets if this window has input focus.
Return | |
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Boolean |
Whether has input focus. |
isInPictureInPictureMode
fun isInPictureInPictureMode(): Boolean
Check if the window is in picture-in-picture mode.
Return | |
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Boolean |
true if the window is in picture-in-picture mode, false otherwise. |
obtain
static fun obtain(): AccessibilityWindowInfo!
Returns a cached instance if such is available or a new one is created.
In most situations object pooling is not beneficial. Create a new instance using the constructor AccessibilityWindowInfo()
instead.
Return | |
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AccessibilityWindowInfo! |
An instance. |
obtain
static fun obtain(info: AccessibilityWindowInfo!): AccessibilityWindowInfo!
Returns a cached instance if such is available or a new one is created. The returned instance is initialized from the given info
.
In most situations object pooling is not beneficial. Create a new instance using the constructor AccessibilityWindowInfo(android.view.accessibility.AccessibilityWindowInfo)
instead.
Parameters | |
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info |
AccessibilityWindowInfo!: The other info. |
Return | |
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AccessibilityWindowInfo! |
An instance. |
recycle
fun recycle(): Unit
Return an instance back to be reused.
Note: You must not touch the object after calling this function.
In most situations object pooling is not beneficial, and recycling is not necessary.
Exceptions | |
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java.lang.IllegalStateException |
If the info is already recycled. |
toString
fun toString(): String
Return | |
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String |
a string representation of the object. |
writeToParcel
fun writeToParcel(
parcel: Parcel,
flags: Int
): Unit
Parameters | |
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dest |
The Parcel in which the object should be written. This value cannot be null . |
flags |
Int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE . Value is either 0 or a combination of android.os.Parcelable#PARCELABLE_WRITE_RETURN_VALUE , and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |