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AccessibilityEventCompat

public final class AccessibilityEventCompat
extends Object

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

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

Summary

Constants
`int`	`CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION` Change type for `TYPE_WINDOW_CONTENT_CHANGED` event: The node's content description changed.
`int`	`CONTENT_CHANGE_TYPE_SUBTREE` Change type for `TYPE_WINDOW_CONTENT_CHANGED` event: A node in the subtree rooted at the source node was added or removed.
`int`	`CONTENT_CHANGE_TYPE_TEXT` Change type for `TYPE_WINDOW_CONTENT_CHANGED` event: The node's text changed.
`int`	`CONTENT_CHANGE_TYPE_UNDEFINED` Change type for `TYPE_WINDOW_CONTENT_CHANGED` event: The type of change is not defined.
`int`	`TYPES_ALL_MASK` Mask for `AccessibilityEvent` all types.
`int`	`TYPE_ANNOUNCEMENT` Represents the event of an application making an announcement.
`int`	`TYPE_GESTURE_DETECTION_END` Represents the event of ending gesture detection.
`int`	`TYPE_GESTURE_DETECTION_START` Represents the event of beginning gesture detection.
`int`	`TYPE_TOUCH_EXPLORATION_GESTURE_END` Represents the event of ending a touch exploration gesture.
`int`	`TYPE_TOUCH_EXPLORATION_GESTURE_START` Represents the event of starting a touch exploration gesture.
`int`	`TYPE_TOUCH_INTERACTION_END` Represents the event of the user ending to touch the screen.
`int`	`TYPE_TOUCH_INTERACTION_START` Represents the event of the user starting to touch the screen.
`int`	`TYPE_VIEW_ACCESSIBILITY_FOCUSED` Represents the event of gaining accessibility focus.
`int`	`TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED` Represents the event of clearing accessibility focus.
`int`	`TYPE_VIEW_HOVER_ENTER` Represents the event of a hover enter over a `View`.
`int`	`TYPE_VIEW_HOVER_EXIT` Represents the event of a hover exit over a `View`.
`int`	`TYPE_VIEW_SCROLLED` Represents the event of scrolling a view.
`int`	`TYPE_VIEW_TEXT_SELECTION_CHANGED` Represents the event of changing the selection in an `EditText`.
`int`	`TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY` Represents the event of traversing the text of a view at a given movement granularity.
`int`	`TYPE_WINDOW_CONTENT_CHANGED` Represents the event of changing the content of a window.

Public methods
`static void`	`appendRecord(AccessibilityEvent event, AccessibilityRecordCompat record)` Appends an `AccessibilityRecord` to the end of event records.
`static AccessibilityRecordCompat`	`asRecord(AccessibilityEvent event)` Creates an `AccessibilityRecordCompat` from an `AccessibilityEvent` that can be used to manipulate the event properties defined in `AccessibilityRecord`.
`static int`	`getContentChangeTypes(AccessibilityEvent event)` Gets the bit mask of change types signaled by an `TYPE_WINDOW_CONTENT_CHANGED` event.
`static AccessibilityRecordCompat`	`getRecord(AccessibilityEvent event, int index)` Gets the record at a given index.
`static int`	`getRecordCount(AccessibilityEvent event)` Gets the number of records contained in the event.
`static void`	`setContentChangeTypes(AccessibilityEvent event, int changeTypes)` Sets the bit mask of node tree changes signaled by an `TYPE_WINDOW_CONTENT_CHANGED` event.

Inherited methods

From class


  
    java.lang.Object

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

Constants

CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION

int CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION

Change type for TYPE_WINDOW_CONTENT_CHANGED event: The node's content description changed.

Constant Value: 4 (0x00000004)

CONTENT_CHANGE_TYPE_SUBTREE

int CONTENT_CHANGE_TYPE_SUBTREE

Change type for TYPE_WINDOW_CONTENT_CHANGED event: A node in the subtree rooted at the source node was added or removed.

Constant Value: 1 (0x00000001)

CONTENT_CHANGE_TYPE_TEXT

int CONTENT_CHANGE_TYPE_TEXT

Change type for TYPE_WINDOW_CONTENT_CHANGED event: The node's text changed.

Constant Value: 2 (0x00000002)

CONTENT_CHANGE_TYPE_UNDEFINED

int CONTENT_CHANGE_TYPE_UNDEFINED

Change type for TYPE_WINDOW_CONTENT_CHANGED event: The type of change is not defined.

Constant Value: 0 (0x00000000)

TYPES_ALL_MASK

int TYPES_ALL_MASK

Mask for AccessibilityEvent all types.

See also:

Constant Value: -1 (0xffffffff)

TYPE_ANNOUNCEMENT

int TYPE_ANNOUNCEMENT

Represents the event of an application making an announcement.

Constant Value: 16384 (0x00004000)

TYPE_GESTURE_DETECTION_END

int TYPE_GESTURE_DETECTION_END

Represents the event of ending gesture detection.

Constant Value: 524288 (0x00080000)

TYPE_GESTURE_DETECTION_START

int TYPE_GESTURE_DETECTION_START

Represents the event of beginning gesture detection.

Constant Value: 262144 (0x00040000)

TYPE_TOUCH_EXPLORATION_GESTURE_END

int TYPE_TOUCH_EXPLORATION_GESTURE_END

Represents the event of ending a touch exploration gesture.

Constant Value: 1024 (0x00000400)

TYPE_TOUCH_EXPLORATION_GESTURE_START

int TYPE_TOUCH_EXPLORATION_GESTURE_START

Represents the event of starting a touch exploration gesture.

Constant Value: 512 (0x00000200)

TYPE_TOUCH_INTERACTION_END

int TYPE_TOUCH_INTERACTION_END

Represents the event of the user ending to touch the screen.

Constant Value: 2097152 (0x00200000)

TYPE_TOUCH_INTERACTION_START

int TYPE_TOUCH_INTERACTION_START

Represents the event of the user starting to touch the screen.

Constant Value: 1048576 (0x00100000)

TYPE_VIEW_ACCESSIBILITY_FOCUSED

int TYPE_VIEW_ACCESSIBILITY_FOCUSED

Represents the event of gaining accessibility focus.

Constant Value: 32768 (0x00008000)

TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED

int TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED

Represents the event of clearing accessibility focus.

Constant Value: 65536 (0x00010000)

TYPE_VIEW_HOVER_ENTER

int TYPE_VIEW_HOVER_ENTER

Represents the event of a hover enter over a View.

Constant Value: 128 (0x00000080)

TYPE_VIEW_HOVER_EXIT

int TYPE_VIEW_HOVER_EXIT

Represents the event of a hover exit over a View.

Constant Value: 256 (0x00000100)

TYPE_VIEW_SCROLLED

int TYPE_VIEW_SCROLLED

Represents the event of scrolling a view.

Constant Value: 4096 (0x00001000)

TYPE_VIEW_TEXT_SELECTION_CHANGED

int TYPE_VIEW_TEXT_SELECTION_CHANGED

Represents the event of changing the selection in an EditText.

Constant Value: 8192 (0x00002000)

TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY

int TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY

Represents the event of traversing the text of a view at a given movement granularity.

Constant Value: 131072 (0x00020000)

TYPE_WINDOW_CONTENT_CHANGED

int TYPE_WINDOW_CONTENT_CHANGED

Represents the event of changing the content of a window.

Constant Value: 2048 (0x00000800)

Public methods

appendRecord

void appendRecord (AccessibilityEvent event, 
                AccessibilityRecordCompat record)

Appends an AccessibilityRecord to the end of event records.

Parameters
`event`	`AccessibilityEvent`
`record`	`AccessibilityRecordCompat`: The record to append.

Throws
`IllegalStateException`	If called from an AccessibilityService.

asRecord

AccessibilityRecordCompat asRecord (AccessibilityEvent event)

Creates an AccessibilityRecordCompat from an AccessibilityEvent that can be used to manipulate the event properties defined in AccessibilityRecord.

Note: Do not call recycle() on the returned AccessibilityRecordCompat. Call recycle() in case you want to recycle the event.

Parameters
`event`	`AccessibilityEvent`: The from which to create a record.

Returns
`AccessibilityRecordCompat`	An `AccessibilityRecordCompat`.

getContentChangeTypes

int getContentChangeTypes (AccessibilityEvent event)

Gets the bit mask of change types signaled by an TYPE_WINDOW_CONTENT_CHANGED event. A single event may represent multiple change types.

Parameters
`event`	`AccessibilityEvent`

Returns
`int`	The bit mask of change types. One or more of: `CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION` `CONTENT_CHANGE_TYPE_SUBTREE` `CONTENT_CHANGE_TYPE_TEXT` `CONTENT_CHANGE_TYPE_UNDEFINED`

getRecord

AccessibilityRecordCompat getRecord (AccessibilityEvent event, 
                int index)

Gets the record at a given index.

Parameters
`event`	`AccessibilityEvent`
`index`	`int`: The index.

Returns
`AccessibilityRecordCompat`	The record at the specified index.

getRecordCount

int getRecordCount (AccessibilityEvent event)

Gets the number of records contained in the event.

Parameters
`event`	`AccessibilityEvent`

Returns
`int`	The number of records.

setContentChangeTypes

void setContentChangeTypes (AccessibilityEvent event, 
                int changeTypes)

Sets the bit mask of node tree changes signaled by an TYPE_WINDOW_CONTENT_CHANGED event.

Parameters
`event`	`AccessibilityEvent`
`changeTypes`	`int`: The bit mask of change types.

Throws
`IllegalStateException`	If called from an AccessibilityService.

See also:

getContentChangeTypes(AccessibilityEvent)