# AccelerateInterpolator

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

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```
public class AccelerateInterpolator implements Interpolator
```

<br />

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An interpolator where the rate of change starts out slowly and then accelerates.

## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator#AccelerateInterpolator()()` Creates a new instance of `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator` with y=x\^2 parabola. |
| `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator#AccelerateInterpolator(float)(float factor)` Creates a new instance of `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator`. |
| `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator#AccelerateInterpolator(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/NonNull.html https://developer.android.com/reference/android/util/AttributeSet.html attrs )` Creates a new instance of `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator` from XML. |

| ### Public methods |
|---|---|
| `@https://developer.android.com/reference/androidx/annotation/FloatRange(from = 0, to = 1) float` | `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator#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

### AccelerateInterpolator

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

```
public AccelerateInterpolator()
```

Creates a new instance of `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator` with y=x\^2 parabola.

### AccelerateInterpolator

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

```
public AccelerateInterpolator(float factor)
```

Creates a new instance of `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator`.

| Parameters |
|---|---|
| `float factor` | Degree to which the animation should be eased. Setting factor to 1.0f produces a y=x\^2 parabola. Increasing factor above 1.0f exaggerates the ease-in effect (i.e., it starts even slower and ends evens faster) |

### AccelerateInterpolator

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

```
public AccelerateInterpolator(
    @NonNull Context context,
    @NonNull AttributeSet attrs
)
```

Creates a new instance of `https://developer.android.com/reference/androidx/core/animation/AccelerateInterpolator` from XML.

| Parameters |
|---|---|
| `@https://jspecify.dev/docs/api/org/jspecify/annotations/NonNull.html https://developer.android.com/reference/android/content/Context.html context` | The context. |
| `@https://jspecify.dev/docs/api/org/jspecify/annotations/NonNull.html https://developer.android.com/reference/android/util/AttributeSet.html attrs` | The AttributeSet from XML. |

## 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. |