# VolumeShaper.Operation

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

# Operation

*** ** * ** ***

Kotlin\|[Java](https://developer.android.com/reference/android/media/VolumeShaper.Operation "View this page in Java")  

```
class Operation : Parcelable
```

|---|------------------------------------------------------------------------------------------------------------------------------|
| [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)                                               ||
| ↳ | [android.media.VolumeShaper.Operation](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#) |

The`VolumeShaper.Operation`class is used to specify operations to the`VolumeShaper`that affect the volume change.

## Summary

| Inherited constants ||
|---|---|
| From class[Parcelable](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#) |----------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [CONTENTS_FILE_DESCRIPTOR](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#CONTENTS_FILE_DESCRIPTOR:kotlin.Int) <br /> Descriptor bit used with[describeContents()](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#describeContents()): indicates that the Parcelable object's flattened representation includes a file descriptor. <br />                                                                                                                                                                                                        | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [PARCELABLE_WRITE_RETURN_VALUE](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#PARCELABLE_WRITE_RETURN_VALUE:kotlin.Int) <br /> Flag for use with[writeToParcel](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#writeToParcel(android.os.Parcel,%20kotlin.Int)): the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`". Some implementations may want to release resources at this point. <br /> | ||

|                                                                                                                                                                                                           Public methods                                                                                                                                                                                                            ||
|------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)         | [describeContents](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#describeContents())`()` <br />                                                                                                                                                                                                           |
| [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [equals](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#equals(kotlin.Any))`(`other:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)?`)` <br />                                                                                                                               |
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)         | [hashCode](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#hashCode())`()` <br />                                                                                                                                                                                                                           |
| [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)   | [toString](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#toString())`()` <br />                                                                                                                                                                                                                           |
| [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html)       | [writeToParcel](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#writeToParcel(android.os.Parcel,%20kotlin.Int))`(`dest:` `[Parcel](https://developer.android.com/reference/kotlin/android/os/Parcel.html#)`, `flags:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` <br /> |

|                                                                                                                                                                                                             Properties                                                                                                                                                                                                             ||
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| static[Parcelable.Creator](https://developer.android.com/reference/kotlin/android/os/Parcelable.Creator.html#)\<[VolumeShaper.Operation](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#)!\> | [CREATOR](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#CREATOR:android.os.Parcelable.Creator) <br />                                                     |
| static[VolumeShaper.Operation](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#)!                                                                                                             | [PLAY](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#PLAY:android.media.VolumeShaper.Operation) Forward playback from current volume time position.       |
| static[VolumeShaper.Operation](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#)!                                                                                                             | [REVERSE](https://developer.android.com/reference/kotlin/android/media/VolumeShaper.Operation#REVERSE:android.media.VolumeShaper.Operation) Reverse playback from current volume time position. |

## Public methods

### describeContents

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
fun describeContents(): Int
```

|                                                                                                                                                                               Return                                                                                                                                                                               ||
|----------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either`0`or[android.os.Parcelable#CONTENTS_FILE_DESCRIPTOR](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#CONTENTS_FILE_DESCRIPTOR:kotlin.Int) |

### equals

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
fun equals(other: Any?): Boolean
```

|                     Parameters                     ||
|-------|---------------------------------------------|
| `obj` | the reference object with which to compare. |

|                                                                           Return                                                                           ||
|------------------------------------------------------------------------------------|------------------------------------------------------------------------|
| [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | `true`if this object is the same as the obj argument;`false`otherwise. |

### hashCode

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
fun hashCode(): Int
```

|                                                     Return                                                     ||
|----------------------------------------------------------------------------|------------------------------------|
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | a hash code value for this object. |

### toString

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
fun toString(): String
```

|                                                          Return                                                          ||
|----------------------------------------------------------------------------------|----------------------------------------|
| [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | a string representation of the object. |

### writeToParcel

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
fun writeToParcel(
    dest: Parcel, 
    flags: Int
): Unit
```

|                                                                                                                                                                                                                                                                                     Parameters                                                                                                                                                                                                                                                                                     ||
|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `dest`  | [Parcel](https://developer.android.com/reference/kotlin/android/os/Parcel.html#):The Parcel in which the object should be written. This value cannot be`null`.                                                                                                                                                                                                                                                                                                                                                                                                            |
| `flags` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Additional flags about how the object should be written. May be 0 or[PARCELABLE_WRITE_RETURN_VALUE](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#PARCELABLE_WRITE_RETURN_VALUE:kotlin.Int). Value is either`0`or a combination of[android.os.Parcelable#PARCELABLE_WRITE_RETURN_VALUE](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#PARCELABLE_WRITE_RETURN_VALUE:kotlin.Int), and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |

## Properties

### CREATOR

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
static val CREATOR: Parcelable.Creator<VolumeShaper.Operation!>
```  

### PLAY

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
static val PLAY: VolumeShaper.Operation!
```

Forward playback from current volume time position. At the end of the`VolumeShaper`curve, the last volume value persists.  

### REVERSE

Added in[API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
static val REVERSE: VolumeShaper.Operation!
```

Reverse playback from current volume time position. When the position reaches the start of the`VolumeShaper`curve, the first volume value persists.