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# UICollectionViewDiffableDataSourceReorderingHandlers

Handlers for reordering items.

```
@interface UICollectionViewDiffableDataSourceReorderingHandlers : NSObject
```

## Topics

### Reordering items

[`canReorderItemHandler`](/documentation/UIKit/UICollectionViewDiffableDataSourceReorderingHandlers/canReorderItemHandler)

The handler that determines whether you can reorder a particular item.

[`willReorderHandler`](/documentation/UIKit/UICollectionViewDiffableDataSourceReorderingHandlers/willReorderHandler)

The handler that prepares the diffable data source for reordering its items.

[`didReorderHandler`](/documentation/UIKit/UICollectionViewDiffableDataSourceReorderingHandlers/didReorderHandler)

The handler that processes a reordering transaction.


---

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