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VirtualDisplay.Callback
public
static
abstract
class
VirtualDisplay.Callback
extends Object
Interface for receiving information about a VirtualDisplay's state changes.
Summary
Public methods |
|---|
void
|
onPaused()
Called when the virtual display video projection has been
paused by the system or when the surface has been detached
by the application by calling setSurface(null).
|
void
|
onResumed()
Called when the virtual display video projection has been
resumed after having been paused.
|
void
|
onStopped()
Called when the virtual display video projection has been
stopped by the system.
|
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
Callback
public Callback ()
Public methods
onPaused
public void onPaused ()
Called when the virtual display video projection has been
paused by the system or when the surface has been detached
by the application by calling setSurface(null).
The surface will not receive any more buffers while paused.
onResumed
public void onResumed ()
Called when the virtual display video projection has been
resumed after having been paused.
onStopped
public void onStopped ()
Called when the virtual display video projection has been
stopped by the system. It will no longer receive frames
and it will never be resumed. It is still the responsibility
of the application to release() the virtual display.
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.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10 UTC."],[],[],null,["# VirtualDisplay.Callback\n\nAdded in [API level 21](/guide/topics/manifest/uses-sdk-element#ApiLevels) \nSummary: [Ctors](#pubctors) \\| [Methods](#pubmethods) \\| [Inherited Methods](#inhmethods) \n\nVirtualDisplay.Callback\n=======================\n\n*** ** * ** ***\n\n[Kotlin](/reference/kotlin/android/hardware/display/VirtualDisplay.Callback \"View this page in Kotlin\") \\|Java\n\n\n`\npublic\nstatic\n\nabstract\nclass\nVirtualDisplay.Callback\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.hardware.display.VirtualDisplay.Callback |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nInterface for receiving information about a [VirtualDisplay](/reference/android/hardware/display/VirtualDisplay)'s state changes.\n\nSummary\n-------\n\n| ### Public constructors ||\n|--------------------------------------------------------------------------------------------|---|\n| ` `[Callback](/reference/android/hardware/display/VirtualDisplay.Callback#Callback())`() ` |\n\n| ### Public methods ||\n|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` void` | ` `[onPaused](/reference/android/hardware/display/VirtualDisplay.Callback#onPaused())`() ` Called when the virtual display video projection has been paused by the system or when the surface has been detached by the application by calling setSurface(null). |\n| ` void` | ` `[onResumed](/reference/android/hardware/display/VirtualDisplay.Callback#onResumed())`() ` Called when the virtual display video projection has been resumed after having been paused. |\n| ` void` | ` `[onStopped](/reference/android/hardware/display/VirtualDisplay.Callback#onStopped())`() ` Called when the virtual display video projection has been stopped by the system. |\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### Callback\n\n```\npublic Callback ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nPublic methods\n--------------\n\n### onPaused\n\nAdded in [API level 21](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic void onPaused ()\n```\n\nCalled when the virtual display video projection has been\npaused by the system or when the surface has been detached\nby the application by calling setSurface(null).\nThe surface will not receive any more buffers while paused.\n\n\u003cbr /\u003e\n\n### onResumed\n\nAdded in [API level 21](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic void onResumed ()\n```\n\nCalled when the virtual display video projection has been\nresumed after having been paused.\n\n\u003cbr /\u003e\n\n### onStopped\n\nAdded in [API level 21](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic void onStopped ()\n```\n\nCalled when the virtual display video projection has been\nstopped by the system. It will no longer receive frames\nand it will never be resumed. It is still the responsibility\nof the application to release() the virtual display.\n\n\u003cbr /\u003e"]]
