Stay organized with collections
Save and categorize content based on your preferences.
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
Inherited methods |
|---|
From class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this object.
|
boolean
|
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
void
|
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
final
Class<?>
|
getClass()
Returns the runtime class of this Object.
|
int
|
hashCode()
Returns a hash code value for the object.
|
final
void
|
notify()
Wakes up a single thread that is waiting on this object's
monitor.
|
final
void
|
notifyAll()
Wakes up all threads that are waiting on this object's monitor.
|
String
|
toString()
Returns a string representation of the object.
|
final
void
|
wait(long timeoutMillis, int nanos)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
|
final
void
|
wait(long timeoutMillis)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
|
final
void
|
wait()
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted.
|
|
Public constructors
public AccessibilityButtonCallback ()
Public methods
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 |
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 |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2025-02-10 UTC.
[null,null,["Last updated 2025-02-10 UTC."],[],[],null,["# AccessibilityButtonController.AccessibilityButtonCallback\n\nAdded in [API level 26](/guide/topics/manifest/uses-sdk-element#ApiLevels) \nSummary: [Ctors](#pubctors) \\| [Methods](#pubmethods) \\| [Inherited Methods](#inhmethods) \n\nAccessibilityButtonController.AccessibilityButtonCallback\n=========================================================\n\n*** ** * ** ***\n\n[Kotlin](/reference/kotlin/android/accessibilityservice/AccessibilityButtonController.AccessibilityButtonCallback \"View this page in Kotlin\") \\|Java\n\n\n`\npublic\nstatic\n\nabstract\nclass\nAccessibilityButtonController.AccessibilityButtonCallback\n`\n\n\n`\n\nextends `[Object](/reference/java/lang/Object)`\n\n\n`\n\n`\n\n\n`\n\n|---|----------------------------------------------------------------------------------------|\n| [java.lang.Object](/reference/java/lang/Object) ||\n| ↳ | android.accessibilityservice.AccessibilityButtonController.AccessibilityButtonCallback |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nCallback for interaction with and changes to state of the accessibility button\nwithin the system's navigation area.\n\nSummary\n-------\n\n| ### Public constructors ||\n|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|\n| ` `[AccessibilityButtonCallback](/reference/android/accessibilityservice/AccessibilityButtonController.AccessibilityButtonCallback#AccessibilityButtonCallback())`() ` |\n\n| ### Public methods ||\n|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` void` | ` `[onAvailabilityChanged](/reference/android/accessibilityservice/AccessibilityButtonController.AccessibilityButtonCallback#onAvailabilityChanged(android.accessibilityservice.AccessibilityButtonController,%20boolean))`(`[AccessibilityButtonController](/reference/android/accessibilityservice/AccessibilityButtonController)` controller, boolean available) ` Called when the availability of the accessibility button in the system's navigation area has changed. |\n| ` void` | ` `[onClicked](/reference/android/accessibilityservice/AccessibilityButtonController.AccessibilityButtonCallback#onClicked(android.accessibilityservice.AccessibilityButtonController))`(`[AccessibilityButtonController](/reference/android/accessibilityservice/AccessibilityButtonController)` controller) ` Called when the accessibility button in the system's navigation area is clicked. |\n\n| ### Inherited methods |\n|-----------------------|---|\n| From class ` `[java.lang.Object](/reference/java/lang/Object)` ` |---------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](/reference/java/lang/Object) | ` `[clone](/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object. | | ` boolean` | ` `[equals](/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](/reference/java/lang/Object)` obj) ` Indicates whether some other object is \"equal to\" this one. | | ` void` | ` `[finalize](/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final `[Class](/reference/java/lang/Class)`\u003c?\u003e` | ` `[getClass](/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this `Object`. | | ` int` | ` `[hashCode](/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object. | | ` final void` | ` `[notify](/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` `[notifyAll](/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor. | | ` `[String](/reference/java/lang/String) | ` `[toString](/reference/java/lang/Object#toString())`() ` Returns a string representation of the object. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*. | ||\n\nPublic constructors\n-------------------\n\n### AccessibilityButtonCallback\n\n```\npublic AccessibilityButtonCallback ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nPublic methods\n--------------\n\n### onAvailabilityChanged\n\nAdded in [API level 26](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic void onAvailabilityChanged (AccessibilityButtonController controller, \n boolean available)\n```\n\nCalled when the availability of the accessibility button in the system's\nnavigation area has changed. The accessibility button may become unavailable\nbecause the device shopped showing the button, the button was assigned to another\nservice, or for other reasons.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|--------------|------------------------------------------------------------------------------------------------------|\n| `controller` | `AccessibilityButtonController`: the controller used to register for this callback \u003cbr /\u003e |\n| `available` | `boolean`: `true` if the accessibility button is available to this service, `false` otherwise \u003cbr /\u003e |\n\n### onClicked\n\nAdded in [API level 26](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic void onClicked (AccessibilityButtonController controller)\n```\n\nCalled when the accessibility button in the system's navigation area is clicked.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|--------------|-------------------------------------------------------------------------------------------|\n| `controller` | `AccessibilityButtonController`: the controller used to register for this callback \u003cbr /\u003e |"]]
