# StopLogicEngine.Decelerate

Artifact: [androidx.constraintlayout:constraintlayout-core](https://developer.android.com/jetpack/androidx/releases/constraintlayout) [View Source](https://cs.android.com/search?q=file:androidx/constraintlayout/core/motion/utils/StopLogicEngine.java+class:androidx.constraintlayout.core.motion.utils.StopLogicEngine.Decelerate) Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

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```
class StopLogicEngine.Decelerate : StopEngine
```

<br />

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## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/motion/utils/StopLogicEngine.Decelerate#Decelerate()()` |

| ### Public functions |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/motion/utils/StopLogicEngine.Decelerate#config(float,float,float)(currentPos: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html, destination: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html, currentVelocity: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` Configure simple deceleration controller |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/motion/utils/StopLogicEngine.Decelerate#debug(java.lang.String,float)(desc: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, time: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/motion/utils/StopLogicEngine.Decelerate#getInterpolation(float)(time: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/motion/utils/StopLogicEngine.Decelerate#getVelocity()()` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/motion/utils/StopLogicEngine.Decelerate#getVelocity(float)(time: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html)` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/constraintlayout/core/motion/utils/StopLogicEngine.Decelerate#isStopped()()` |

## Public constructors

### Decelerate

Added in 1.1.2

```
Decelerate()
```

## Public functions

### config

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun config(currentPos: Float, destination: Float, currentVelocity: Float): Unit
```

Configure simple deceleration controller

| Parameters |
|---|---|
| `currentPos: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the current position |
| `destination: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the destination position |
| `currentVelocity: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-float/index.html` | the currentVelocity change in pos / second |

### debug

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun debug(desc: String!, time: Float): String!
```

### getInterpolation

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun getInterpolation(time: Float): Float
```

### getVelocity

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun getVelocity(): Float
```

### getVelocity

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun getVelocity(time: Float): Float
```

### isStopped

Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2)

```
fun isStopped(): Boolean
```