# BounceInterpolator

# BounceInterpolator

Artifact:[androidx.core:core-animation](https://developer.android.com/jetpack/androidx/releases/core)  
[View Source](https://cs.android.com/search?q=file:androidx/core/animation/BounceInterpolator.java+class:androidx.core.animation.BounceInterpolator)

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Kotlin\|[Java](https://developer.android.com/reference/androidx/core/animation/BounceInterpolator "View this page in Java")

<br />

```
class BounceInterpolator : Interpolator
```

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An interpolator where the change bounces at the end.

## Summary

|                                                                                                                              ### Public constructors                                                                                                                               |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [BounceInterpolator](https://developer.android.com/reference/kotlin/androidx/core/animation/BounceInterpolator#BounceInterpolator())`()` Creates a new instance of[BounceInterpolator](https://developer.android.com/reference/kotlin/androidx/core/animation/BounceInterpolator). |

|                                                                                        ### Public functions                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `@`[FloatRange](https://developer.android.com/reference/kotlin/androidx/annotation/FloatRange)`(from = 0, to = 1) `[Float](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html) | [getInterpolation](https://developer.android.com/reference/kotlin/androidx/core/animation/BounceInterpolator#getInterpolation(float))`(input: @`[FloatRange](https://developer.android.com/reference/kotlin/androidx/annotation/FloatRange)`(from = 0, to = 1) `[Float](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)`)` Maps a value representing the elapsed fraction of an animation to a value that represents the interpolated fraction. |

## Public constructors

### BounceInterpolator

```
BounceInterpolator()
```

Creates a new instance of[BounceInterpolator](https://developer.android.com/reference/kotlin/androidx/core/animation/BounceInterpolator).  

## Public functions

### getInterpolation

```
fun getInterpolation(input: @FloatRange(from = 0, to = 1) Float): @FloatRange(from = 0, to = 1) Float
```

Maps a value representing the elapsed fraction of an animation to a value that represents the interpolated fraction. This interpolated value is then multiplied by the change in value of an animation to derive the animated value at the current elapsed animation time.  

|                                                                                                Parameters                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------|
| `input: @`[FloatRange](https://developer.android.com/reference/kotlin/androidx/annotation/FloatRange)`(from = 0, to = 1) `[Float](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html) | A value between 0 and 1.0 indicating our current point in the animation where 0 represents the start and 1.0 represents the end |

|                                                                                              Returns                                                                                               |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `@`[FloatRange](https://developer.android.com/reference/kotlin/androidx/annotation/FloatRange)`(from = 0, to = 1) `[Float](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html) | The interpolation value. This value can be more than 1.0 for interpolators which overshoot their targets, or less than 0 for interpolators that undershoot their targets. |