---
title: "init(collectionView:cellProvider:)"
framework: uikit
role: symbol
role_heading: Initializer
path: "uikit/uicollectionviewdiffabledatasource-9tqpa/init(collectionview:cellprovider:)"
---

# init(collectionView:cellProvider:)

Creates a diffable data source with the specified cell provider, and connects it to the specified collection view.

## Declaration

```swift
@MainActor @preconcurrency init(collectionView: UICollectionView, cellProvider: @escaping UICollectionViewDiffableDataSource<SectionIdentifierType, ItemIdentifierType>.CellProvider)
```

## Parameters

- `collectionView`: The initialized collection view object to connect to the diffable data source.
- `cellProvider`: A closure that creates and returns each of the cells for the collection view from the data the diffable data source provides.

## Discussion

Discussion To connect a diffable data source to a collection view, you create the diffable data source using this initializer, passing in the collection view you want to associate with that data source. You also pass in a cell provider, where you configure each of your cells to determine how to display your data in the UI. dataSource = UICollectionViewDiffableDataSource<Int, UUID>(collectionView: collectionView) {     (collectionView: UICollectionView, indexPath: IndexPath, itemIdentifier: UUID) -> UICollectionViewCell? in     // configure and return cell }

## See Also

### Creating a diffable data source

- [UICollectionViewDiffableDataSource.CellProvider](uikit/uicollectionviewdiffabledatasource-9tqpa/cellprovider.md)