AccessibilityButtonController Class
Definition
Important
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Controller for the accessibility button within the system's navigation area
[Android.Runtime.Register("android/accessibilityservice/AccessibilityButtonController", ApiSince=26, DoNotGenerateAcw=true)]
public sealed class AccessibilityButtonController : Java.Lang.Object[<Android.Runtime.Register("android/accessibilityservice/AccessibilityButtonController", ApiSince=26, DoNotGenerateAcw=true)>]
type AccessibilityButtonController = class
inherit Object- Inheritance
- Attributes
Remarks
Controller for the accessibility button within the system's navigation area
This class may be used to query the accessibility button's state and register callbacks for interactions with and state changes to the accessibility button when AccessibilityServiceInfo#FLAG_REQUEST_ACCESSIBILITY_BUTTON is set.
<strong>Note:</strong> This class and AccessibilityServiceInfo#FLAG_REQUEST_ACCESSIBILITY_BUTTON should not be used as the sole means for offering functionality to users via an AccessibilityService. Some device implementations may choose not to provide a software-rendered system navigation area, making this affordance permanently unavailable.
<strong>Note:</strong> On device implementations where the accessibility button is supported, it may not be available at all times, such as when a foreground application uses android.view.View#SYSTEM_UI_FLAG_HIDE_NAVIGATION. A user may also choose to assign this button to another accessibility service or feature. In each of these cases, a registered AccessibilityButtonCallback's AccessibilityButtonCallback#onAvailabilityChanged(AccessibilityButtonController, boolean) method will be invoked to provide notifications of changes in the accessibility button's availability to the registering service.
Java documentation for android.accessibilityservice.AccessibilityButtonController.
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.
Properties
| Class |
Returns the runtime class of this |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| IsAccessibilityButtonAvailable |
Retrieves whether the accessibility button in the system's navigation area is available to the calling service. |
| JniIdentityHashCode | (Inherited from Object) |
| JniPeerMembers | |
| 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) |
| 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) |
| RegisterAccessibilityButtonCallback(AccessibilityButtonController+AccessibilityButtonCallback, Handler) |
Registers the provided |
| RegisterAccessibilityButtonCallback(AccessibilityButtonController+AccessibilityButtonCallback) |
Registers the provided |
| 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) |
| UnregisterAccessibilityButtonCallback(AccessibilityButtonController+AccessibilityButtonCallback) |
Unregisters the provided |
| 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) |
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) | |