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# sheetPresentationController

The sheet presentation controller for the view controller.

```
var sheetPresentationController: UISheetPresentationController? { get }
```

## Discussion

If [`modalPresentationStyle`](/documentation/UIKit/UIViewController/modalPresentationStyle) is [`UIModalPresentationStyle.pageSheet`](/documentation/UIKit/UIModalPresentationStyle/pageSheet) or [`UIModalPresentationStyle.formSheet`](/documentation/UIKit/UIModalPresentationStyle/formSheet), this property contains a sheet presentation controller instance. Access this instance to customize or adjust the sheet before or after it presents.

If [`modalPresentationStyle`](/documentation/UIKit/UIViewController/modalPresentationStyle) has a value other than [`UIModalPresentationStyle.pageSheet`](/documentation/UIKit/UIModalPresentationStyle/pageSheet) or [`UIModalPresentationStyle.formSheet`](/documentation/UIKit/UIModalPresentationStyle/formSheet), the value of this property is `nil`.

---

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