---
title: "maskAmountWillChange(_:)"
framework: tvuikit
role: symbol
role_heading: Instance Method
path: "tvuikit/tvcollectionviewfullscreencell/maskamountwillchange(_:)"
---

# maskAmountWillChange(_:)

Notifies the cell when its mask amount is about to change.

## Declaration

```swift
func maskAmountWillChange(_ nextMaskAmount: CGFloat)
```

## Discussion

Discussion

## See Also

### Managing Cell Mask

- [maskAmountDidChange()](tvuikit/tvcollectionviewfullscreencell/maskamountdidchange().md)