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AccessibilityButtonController.AccessibilityButtonCallback.OnAvailabilityChanged Method

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Definition

Namespace:
Android.AccessibilityServices
Assembly:
Mono.Android.dll

Called when the availability of the accessibility button in the system's navigation area has changed.

[Android.Runtime.Register("onAvailabilityChanged", "(Landroid/accessibilityservice/AccessibilityButtonController;Z)V", "GetOnAvailabilityChanged_Landroid_accessibilityservice_AccessibilityButtonController_ZHandler", ApiSince=26)]
public virtual void OnAvailabilityChanged (Android.AccessibilityServices.AccessibilityButtonController? controller, bool available);
[<Android.Runtime.Register("onAvailabilityChanged", "(Landroid/accessibilityservice/AccessibilityButtonController;Z)V", "GetOnAvailabilityChanged_Landroid_accessibilityservice_AccessibilityButtonController_ZHandler", ApiSince=26)>]
abstract member OnAvailabilityChanged : Android.AccessibilityServices.AccessibilityButtonController * bool -> unit
override this.OnAvailabilityChanged : Android.AccessibilityServices.AccessibilityButtonController * bool -> unit

Parameters

controller
AccessibilityButtonController

the controller used to register for this callback

available
Boolean

true if the accessibility button is available to this service, false otherwise

Attributes
RegisterAttribute

Remarks

Called when the availability of the accessibility button in the system's navigation area has changed. The accessibility button may become unavailable because the device shopped showing the button, the button was assigned to another service, or for other reasons.

Java documentation for android.accessibilityservice.AccessibilityButtonController.AccessibilityButtonCallback.onAvailabilityChanged(android.accessibilityservice.AccessibilityButtonController, boolean).

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.

Applies to