# LinearInterpolator

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/LinearInterpolator.java+class:androidx.core.animation.LinearInterpolator) Added in [1.0.0](https://developer.android.com/jetpack/androidx/releases/core#1.0.0)

*** ** * ** ***


```
public class LinearInterpolator implements Interpolator
```

<br />

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An interpolator where the rate of change is constant

## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/androidx/core/animation/LinearInterpolator#LinearInterpolator()()` |
| `https://developer.android.com/reference/androidx/core/animation/LinearInterpolator#LinearInterpolator(android.content.Context,android.util.AttributeSet)(@https://jspecify.dev/docs/api/org/jspecify/annotations/NonNull.html https://developer.android.com/reference/android/content/Context.html context, @https://jspecify.dev/docs/api/org/jspecify/annotations/Nullable.html https://developer.android.com/reference/android/util/AttributeSet.html attrs)` |

| ### Public methods |
|---|---|
| `@https://developer.android.com/reference/androidx/annotation/FloatRange(from = 0, to = 1) float` | `https://developer.android.com/reference/androidx/core/animation/LinearInterpolator#getInterpolation(float)(@https://developer.android.com/reference/androidx/annotation/FloatRange(from = 0, to = 1) float input)` Maps a value representing the elapsed fraction of an animation to a value that represents the interpolated fraction. |

## Public constructors

### LinearInterpolator

Added in [1.0.0](https://developer.android.com/jetpack/androidx/releases/core#1.0.0)

```
public LinearInterpolator()
```

### LinearInterpolator

Added in [1.0.0](https://developer.android.com/jetpack/androidx/releases/core#1.0.0)

```
public LinearInterpolator(@NonNull Context context, @Nullable AttributeSet attrs)
```

## Public methods

### getInterpolation

```
public @FloatRange(from = 0, to = 1) float getInterpolation(@FloatRange(from = 0, to = 1) float input)
```

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 |
|---|---|
| `@https://developer.android.com/reference/androidx/annotation/FloatRange(from = 0, to = 1) float input` | 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 |
|---|---|
| `@https://developer.android.com/reference/androidx/annotation/FloatRange(from = 0, to = 1) float` | 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. |