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VisibleActivityCallback
interface VisibleActivityCallback
Callback interface for receiving visible activity changes used for assistant usage.
Summary
| Public methods |
| open Unit |
Callback to inform that a visible activity has gone.
|
| open Unit |
Callback to inform that an activity has become visible.
|
Public methods
onVisible
open fun onVisible(activityInfo: VisibleActivityInfo): Unit
Callback to inform that an activity has become visible.
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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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10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,["# VoiceInteractionSession.VisibleActivityCallback\n\nAdded in [API level 32](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)\n\nVisibleActivityCallback\n=======================\n\n*** ** * ** ***\n\nKotlin \\|[Java](/reference/android/service/voice/VoiceInteractionSession.VisibleActivityCallback \"View this page in Java\") \n\n```\ninterface VisibleActivityCallback\n```\n\n|----------------------------------------------------------------------------|\n| [android.service.voice.VoiceInteractionSession.VisibleActivityCallback](#) |\n\nCallback interface for receiving visible activity changes used for assistant usage.\n\nSummary\n-------\n\n| Public methods ||\n|-----------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| open [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onInvisible](#onInvisible(android.service.voice.VoiceInteractionSession.ActivityId))`(`activityId:` `[VoiceInteractionSession.ActivityId](/reference/kotlin/android/service/voice/VoiceInteractionSession.ActivityId)`)` Callback to inform that a visible activity has gone. |\n| open [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onVisible](#onVisible(android.service.voice.VisibleActivityInfo))`(`activityInfo:` `[VisibleActivityInfo](/reference/kotlin/android/service/voice/VisibleActivityInfo)`)` Callback to inform that an activity has become visible. |\n\nPublic methods\n--------------\n\n### onInvisible\n\nAdded in [API level 32](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \n\n```\nopen fun onInvisible(activityId: VoiceInteractionSession.ActivityId): Unit\n```\n\nCallback to inform that a visible activity has gone.\n\n| Parameters ||\n|--------------|------------------------------------------------------------------------------------------------------------------------------------------------|\n| `activityId` | [VoiceInteractionSession.ActivityId](/reference/kotlin/android/service/voice/VoiceInteractionSession.ActivityId): This value cannot be `null`. |\n\n### onVisible\n\nAdded in [API level 32](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \n\n```\nopen fun onVisible(activityInfo: VisibleActivityInfo): Unit\n```\n\nCallback to inform that an activity has become visible.\n\n| Parameters ||\n|----------------|------------------------------------------------------------------------------------------------------------------|\n| `activityInfo` | [VisibleActivityInfo](/reference/kotlin/android/service/voice/VisibleActivityInfo): This value cannot be `null`. |"]]
