---
title: previewParametersProvider
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uicollectionviewdropplaceholder/previewparametersprovider
---

# previewParametersProvider

The object that provides the preview parameters for a drag item.

## Declaration

```swift
var previewParametersProvider: ((UICollectionViewCell) -> UIDragPreviewParameters?)? { get set }
```