# TvInputManager.TvInputCallback Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # TvInputCallback *** ** * ** *** Kotlin\|[Java](https://developer.android.com/reference/android/media/tv/TvInputManager.TvInputCallback "View this page in Java") ``` abstract class TvInputCallback ``` |---|----------------------------------------------------------------------------------------------------------------------------------------------------| | [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) || | ↳ | [android.media.tv.TvInputManager.TvInputCallback](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager.TvInputCallback#) | Callback used to monitor status of the TV inputs. ## Summary | Public constructors || |------------------------------------------------------------------------------------------------------------------------------------------------|---| | [TvInputCallback](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager.TvInputCallback#TvInputCallback())`()`
| | Public methods || |----------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onInputAdded](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager.TvInputCallback#onInputAdded(kotlin.String))`(`inputId:` `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!`)` This is called when a TV input is added to the system. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onInputRemoved](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager.TvInputCallback#onInputRemoved(kotlin.String))`(`inputId:` `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!`)` This is called when a TV input is removed from the system. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onInputStateChanged](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager.TvInputCallback#onInputStateChanged(kotlin.String,%20kotlin.Int))`(`inputId:` `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!`, `state:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` This is called when the state of a given TV input is changed. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onInputUpdated](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager.TvInputCallback#onInputUpdated(kotlin.String))`(`inputId:` `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!`)` This is called when a TV input is updated on the system. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onTvInputInfoUpdated](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager.TvInputCallback#onTvInputInfoUpdated(android.media.tv.TvInputInfo))`(`inputInfo:` `[TvInputInfo](https://developer.android.com/reference/kotlin/android/media/tv/TvInputInfo)!`)` This is called when the information about an existing TV input has been updated. | ## Public constructors ### TvInputCallback ``` TvInputCallback() ``` ## Public methods ### onInputAdded Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun onInputAdded(inputId: String!): Unit ``` This is called when a TV input is added to the system. Normally it happens when the user installs a new TV input package that implements[TvInputService](https://developer.android.com/reference/kotlin/android/media/tv/TvInputService)interface. | Parameters || |-----------|-----------------------------------------------------------------------------------------------------------| | `inputId` | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!:The ID of the TV input. | ### onInputRemoved Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun onInputRemoved(inputId: String!): Unit ``` This is called when a TV input is removed from the system. Normally it happens when the user uninstalls the previously installed TV input package. | Parameters || |-----------|-----------------------------------------------------------------------------------------------------------| | `inputId` | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!:The ID of the TV input. | ### onInputStateChanged Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun onInputStateChanged(     inputId: String!,     state: Int ): Unit ``` This is called when the state of a given TV input is changed. | Parameters || |-----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `inputId` | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!:The ID of the TV input. | | `state` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):State of the TV input. The value is one of the following: - [TvInputManager.INPUT_STATE_CONNECTED](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager#INPUT_STATE_CONNECTED:kotlin.Int) - [TvInputManager.INPUT_STATE_CONNECTED_STANDBY](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager#INPUT_STATE_CONNECTED_STANDBY:kotlin.Int) - [TvInputManager.INPUT_STATE_DISCONNECTED](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager#INPUT_STATE_DISCONNECTED:kotlin.Int) Value is[android.media.tv.TvInputManager#INPUT_STATE_CONNECTED](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager#INPUT_STATE_CONNECTED:kotlin.Int),[android.media.tv.TvInputManager#INPUT_STATE_CONNECTED_STANDBY](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager#INPUT_STATE_CONNECTED_STANDBY:kotlin.Int), or[android.media.tv.TvInputManager#INPUT_STATE_DISCONNECTED](https://developer.android.com/reference/kotlin/android/media/tv/TvInputManager#INPUT_STATE_DISCONNECTED:kotlin.Int) | ### onInputUpdated Added in[API level 24](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun onInputUpdated(inputId: String!): Unit ``` This is called when a TV input is updated on the system. Normally it happens when a previously installed TV input package is re-installed or the media on which a newer version of the package exists becomes available/unavailable. | Parameters || |-----------|-----------------------------------------------------------------------------------------------------------| | `inputId` | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!:The ID of the TV input. | ### onTvInputInfoUpdated Added in[API level 24](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun onTvInputInfoUpdated(inputInfo: TvInputInfo!): Unit ``` This is called when the information about an existing TV input has been updated. Because the system automatically creates a`TvInputInfo`object for each TV input based on the information collected from the`AndroidManifest.xml`, this method is only called back when such information has changed dynamically. | Parameters || |-------------|---------------------------------------------------------------------------------------------------------------------------------------------------| | `inputInfo` | [TvInputInfo](https://developer.android.com/reference/kotlin/android/media/tv/TvInputInfo)!:The`TvInputInfo`object that contains new information. |