AccessibilityNodeInfo.AccessibilityAction Class

Definition

Namespace:

Android.Views.Accessibility

Assembly:

Mono.Android.dll

A class defining an action that can be performed on an AccessibilityNodeInfo.

C#

[Android.Runtime.Register("android/view/accessibility/AccessibilityNodeInfo$AccessibilityAction", DoNotGenerateAcw=true)]
public sealed class AccessibilityNodeInfo.AccessibilityAction : Java.Lang.Object, Android.OS.IParcelable, IDisposable, Java.Interop.IJavaPeerable

Inheritance

Object

Object

AccessibilityNodeInfo.AccessibilityAction

Attributes

RegisterAttribute

Implements

IParcelable IJavaObject IJavaPeerable IDisposable

Remarks

A class defining an action that can be performed on an AccessibilityNodeInfo. Each action has a unique id that is mandatory and optional data.

There are three categories of actions: <ul> <li><strong>Standard actions</strong> - These are actions that are reported and handled by the standard UI widgets in the platform. For each standard action there is a static constant defined in this class, e.g. #ACTION_FOCUS. These actions will have null labels. </li> <li><strong>Custom actions action</strong> - These are actions that are reported and handled by custom widgets. i.e. ones that are not part of the UI toolkit. For example, an application may define a custom action for clearing the user history. </li> <li><strong>Overridden standard actions</strong> - These are actions that override standard actions to customize them. For example, an app may add a label to the standard #ACTION_CLICK action to indicate to the user that this action clears browsing history. </ul>

Actions are typically added to an AccessibilityNodeInfo by using AccessibilityNodeInfo#addAction(AccessibilityAction) within View#onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo) and are performed within View#performAccessibilityAction(int, Bundle).

"note"> <b>Note:</b> Views which support these actions should invoke <c>View#setImportantForAccessibility(int)</c> with <c>View#IMPORTANT_FOR_ACCESSIBILITY_YES</c> to ensure an <c>AccessibilityService</c> can discover the set of supported actions. </aside>

"note"> <b>Note:</b> Use <c>androidx.core.view.ViewCompat#addAccessibilityAction(View, CharSequence, AccessibilityViewCommand)</c> to register an action directly on the view. </aside>

Java documentation for android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Constructors

AccessibilityNodeInfo.AccessibilityAction(Int32, ICharSequence)	Creates a new AccessibilityAction.
AccessibilityNodeInfo.AccessibilityAction(Int32, String)

Properties

ActionAccessibilityFocus
ActionClearAccessibilityFocus
ActionClearFocus
ActionClearSelection
ActionClick
ActionCollapse
ActionContextClick
ActionCopy
ActionCut
ActionDismiss
ActionDragCancel
ActionDragDrop
ActionDragStart
ActionExpand
ActionFocus
ActionHideTooltip
ActionImeEnter
ActionLongClick
ActionMoveWindow
ActionNextAtMovementGranularity
ActionNextHtmlElement
ActionPageDown
ActionPageLeft
ActionPageRight
ActionPageUp
ActionPaste
ActionPressAndHold
ActionPreviousAtMovementGranularity
ActionPreviousHtmlElement
ActionScrollBackward
ActionScrollDown
ActionScrollForward
ActionScrollInDirection
ActionScrollLeft
ActionScrollRight
ActionScrollToPosition
ActionScrollUp
ActionSelect
ActionSetProgress
ActionSetSelection
ActionSetText
ActionShowOnScreen
ActionShowTextSuggestions
ActionShowTooltip
Class	Returns the runtime class of this Object. (Inherited from Object)
Creator
Handle	The handle to the underlying Android instance. (Inherited from Object)
Id	Gets the id for this action.
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
Label
LabelFormatted	Gets the label for this action.
PeerReference	(Inherited from Object)
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object)
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object)

Methods

Clone()	Creates and returns a copy of this object. (Inherited from Object)
DescribeContents()	To be added
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
JavaFinalize()	Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object)
Notify()	Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object)
NotifyAll()	Wakes up all threads that are waiting on this object's monitor. (Inherited from Object)
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterFromRuntime()	(Inherited from Object)
Wait()	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object)
Wait(Int64, Int32)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
Wait(Int64)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
WriteToParcel(Parcel, ParcelableWriteFlags)	Write data into a parcel.

Explicit Interface Implementations

IJavaPeerable.Disposed()	(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	(Inherited from Object)
IJavaPeerable.Finalized()	(Inherited from Object)
IJavaPeerable.JniManagedPeerState	(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from Object)

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)	Gets the JNI name of the type of the instance self.
JavaAs<TResult>(IJavaPeerable)	Try to coerce self to type TResult, checking that the coercion is valid on the Java side.
TryJavaCast<TResult>(IJavaPeerable, TResult)	Try to coerce self to type TResult, checking that the coercion is valid on the Java side.

Applies to