# View.OnScrollChangeListener

Added in[API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

# OnScrollChangeListener

*** ** * ** ***

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

```
interface OnScrollChangeListener
```

|--------------------------------------------------------------------------------------------------------------------------------------|
| [android.view.View.OnScrollChangeListener](https://developer.android.com/reference/kotlin/android/view/View.OnScrollChangeListener#) |

Interface definition for a callback to be invoked when the scroll X or Y positions of a view change.

**Note:** Some views handle scrolling independently from View and may have their own separate listeners for scroll-type events. For example,[ListView](https://developer.android.com/reference/kotlin/android/widget/ListView.html#)allows clients to register an[AbsListView.OnScrollListener](https://developer.android.com/reference/kotlin/android/widget/AbsListView.html#setOnScrollListener(android.widget.AbsListView.OnScrollListener))to listen for changes in list scroll position.

## Summary

|                                                                                                                                                                                                                                                                                                                                                                                               Public methods                                                                                                                                                                                                                                                                                                                                                                                               ||
|--------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| abstract[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onScrollChange](https://developer.android.com/reference/kotlin/android/view/View.OnScrollChangeListener#onScrollChange(android.view.View,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int,%20kotlin.Int))`(`v:` `[View](https://developer.android.com/reference/kotlin/android/view/View)!`, `scrollX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `scrollY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `oldScrollX:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `oldScrollY:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Called when the scroll position of a view changes. |

## Public methods

### onScrollChange

Added in[API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)  

```
abstract fun onScrollChange(
    v: View!, 
    scrollX: Int, 
    scrollY: Int, 
    oldScrollX: Int, 
    oldScrollY: Int
): Unit
```

Called when the scroll position of a view changes.

|                                                             Parameters                                                              ||
|--------------|-----------------------------------------------------------------------------------------------------------------------|
| `v`          | [View](https://developer.android.com/reference/kotlin/android/view/View)!:The view whose scroll position has changed. |
| `scrollX`    | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Current horizontal scroll origin.          |
| `scrollY`    | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Current vertical scroll origin.            |
| `oldScrollX` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Previous horizontal scroll origin.         |
| `oldScrollY` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Previous vertical scroll origin.           |