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AccessibilityButtonController.AccessibilityButtonCallback

public static abstract class AccessibilityButtonController.AccessibilityButtonCallback
extends Object

java.lang.Object
   ↳ android.accessibilityservice.AccessibilityButtonController.AccessibilityButtonCallback


Callback for interaction with and changes to state of the accessibility button within the system's navigation area.

Summary

Public constructors

AccessibilityButtonController.AccessibilityButtonCallback()

Public methods

void onAvailabilityChanged(AccessibilityButtonController controller, boolean available)

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

void onClicked(AccessibilityButtonController controller)

Called when the accessibility button in the system's navigation area is clicked.

Inherited methods

Public constructors

AccessibilityButtonController.AccessibilityButtonCallback

added in API level 26
public AccessibilityButtonController.AccessibilityButtonCallback ()

Public methods

onAvailabilityChanged

added in API level 26
public void onAvailabilityChanged (AccessibilityButtonController controller, 
                boolean available)

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.

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

onClicked

added in API level 26
public void onClicked (AccessibilityButtonController controller)

Called when the accessibility button in the system's navigation area is clicked.

Parameters
controller AccessibilityButtonController: the controller used to register for this callback