Stay organized with collections
Save and categorize content based on your preferences.
StorageManager.StorageVolumeCallback
public
static
class
StorageManager.StorageVolumeCallback
extends Object
Callback that delivers StorageVolume related events.
For example, this can be used to detect when a volume changes to the
Environment.MEDIA_MOUNTED or Environment.MEDIA_UNMOUNTED
states.
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
StorageVolumeCallback
public StorageVolumeCallback ()
Public methods
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,["# StorageManager.StorageVolumeCallback\n\nAdded in [API level 30](/guide/topics/manifest/uses-sdk-element#ApiLevels) \nSummary: [Ctors](#pubctors) \\| [Methods](#pubmethods) \\| [Inherited Methods](#inhmethods) \n\nStorageManager.StorageVolumeCallback\n====================================\n\n*** ** * ** ***\n\n[Kotlin](/reference/kotlin/android/os/storage/StorageManager.StorageVolumeCallback \"View this page in Kotlin\") \\|Java\n\n\n`\npublic\nstatic\n\n\nclass\nStorageManager.StorageVolumeCallback\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.os.storage.StorageManager.StorageVolumeCallback |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nCallback that delivers [StorageVolume](/reference/android/os/storage/StorageVolume) related events.\n\n\nFor example, this can be used to detect when a volume changes to the\n[Environment.MEDIA_MOUNTED](/reference/android/os/Environment#MEDIA_MOUNTED) or [Environment.MEDIA_UNMOUNTED](/reference/android/os/Environment#MEDIA_UNMOUNTED)\nstates. \n**See also:**\n\n- [StorageManager.registerStorageVolumeCallback(Executor, StorageVolumeCallback)](/reference/android/os/storage/StorageManager#registerStorageVolumeCallback(java.util.concurrent.Executor,%20android.os.storage.StorageManager.StorageVolumeCallback))\n- [StorageManager.unregisterStorageVolumeCallback(StorageVolumeCallback)](/reference/android/os/storage/StorageManager#unregisterStorageVolumeCallback(android.os.storage.StorageManager.StorageVolumeCallback))\n\nSummary\n-------\n\n| ### Public constructors ||\n|-----------------------------------------------------------------------------------------------------------------------------|---|\n| ` `[StorageVolumeCallback](/reference/android/os/storage/StorageManager.StorageVolumeCallback#StorageVolumeCallback())`() ` |\n\n| ### Public methods ||\n|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` void` | ` `[onStateChanged](/reference/android/os/storage/StorageManager.StorageVolumeCallback#onStateChanged(android.os.storage.StorageVolume))`(`[StorageVolume](/reference/android/os/storage/StorageVolume)` volume) ` Called when [StorageVolume.getState()](/reference/android/os/storage/StorageVolume#getState()) changes, such as changing to the [Environment.MEDIA_MOUNTED](/reference/android/os/Environment#MEDIA_MOUNTED) or [Environment.MEDIA_UNMOUNTED](/reference/android/os/Environment#MEDIA_UNMOUNTED) states. |\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### StorageVolumeCallback\n\n```\npublic StorageVolumeCallback ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nPublic methods\n--------------\n\n### onStateChanged\n\nAdded in [API level 30](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic void onStateChanged (StorageVolume volume)\n```\n\nCalled when [StorageVolume.getState()](/reference/android/os/storage/StorageVolume#getState()) changes, such as\nchanging to the [Environment.MEDIA_MOUNTED](/reference/android/os/Environment#MEDIA_MOUNTED) or\n[Environment.MEDIA_UNMOUNTED](/reference/android/os/Environment#MEDIA_UNMOUNTED) states.\n\n\nThe given argument is a snapshot in time and can be used to process\nevents in the order they occurred, or you can call\n[StorageManager.getStorageVolumes()](/reference/android/os/storage/StorageManager#getStorageVolumes()) to observe the latest\nvalue.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|----------|------------------------------------------------------|\n| `volume` | `StorageVolume`: This value cannot be `null`. \u003cbr /\u003e |"]]
