AccessibilityNodeInfo.AccessibilityAction Class
Definition
Important
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A class defining an action that can be performed on an AccessibilityNodeInfo.
[Android.Runtime.Register("android/view/accessibility/AccessibilityNodeInfo$AccessibilityAction", DoNotGenerateAcw=true)]
public sealed class AccessibilityNodeInfo.AccessibilityAction : Java.Lang.Object, Android.OS.IParcelable, IDisposable, Java.Interop.IJavaPeerable[<Android.Runtime.Register("android/view/accessibility/AccessibilityNodeInfo$AccessibilityAction", DoNotGenerateAcw=true)>]
type AccessibilityNodeInfo.AccessibilityAction = class
inherit Object
interface IParcelable
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Inheritance
- Attributes
- Implements
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>Overriden 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).
<p class="note"> <strong>Note:</strong> Views which support these actions should invoke View#setImportantForAccessibility(int) with View#IMPORTANT_FOR_ACCESSIBILITY_YES to ensure an AccessibilityService can discover the set of supported actions. </p>
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
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) | |