---
title: "scrollViewDidScroll(_:)"
framework: uikit
role: symbol
role_heading: Instance Method
path: "uikit/uiscrollviewdelegate/scrollviewdidscroll(_:)"
---

# scrollViewDidScroll(_:)

Tells the delegate when the user scrolls the content view within the scroll view.

## Declaration

```swift
optional func scrollViewDidScroll(_ scrollView: UIScrollView)
```

## Parameters

- `scrollView`: The scroll-view object in which the scrolling occurred.

## Discussion

Discussion The delegate typically implements this method to obtain the change in content offset from scrollView and draw the affected portion of the content view.

## See Also

### Responding to scrolling and dragging

- [scrollViewWillBeginDragging(_:)](uikit/uiscrollviewdelegate/scrollviewwillbegindragging(_:).md)
- [scrollViewWillEndDragging(_:withVelocity:targetContentOffset:)](uikit/uiscrollviewdelegate/scrollviewwillenddragging(_:withvelocity:targetcontentoffset:).md)
- [scrollViewDidEndDragging(_:willDecelerate:)](uikit/uiscrollviewdelegate/scrollviewdidenddragging(_:willdecelerate:).md)
- [scrollViewShouldScrollToTop(_:)](uikit/uiscrollviewdelegate/scrollviewshouldscrolltotop(_:).md)
- [scrollViewDidScrollToTop(_:)](uikit/uiscrollviewdelegate/scrollviewdidscrolltotop(_:).md)
- [scrollViewWillBeginDecelerating(_:)](uikit/uiscrollviewdelegate/scrollviewwillbegindecelerating(_:).md)
- [scrollViewDidEndDecelerating(_:)](uikit/uiscrollviewdelegate/scrollviewdidenddecelerating(_:).md)