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# UIView.Invalidations

Changes that cause an aspect of a view to be invalid and require an update.

```
enum Invalidations
```

## Topics

### Invalidation types

[`struct Configuration`](/documentation/UIKit/UIView/Invalidations/Configuration)

A change that invalidates a view’s configuration.

[`struct Constraints`](/documentation/UIKit/UIView/Invalidations/Constraints)

A change that invalidates a view’s constraints.

[`struct Display`](/documentation/UIKit/UIView/Invalidations/Display)

A change that requires the system to redraw a view’s content.

[`struct IntrinsicContentSize`](/documentation/UIKit/UIView/Invalidations/IntrinsicContentSize)

A change that invalidates a view’s intrinsic size.

[`struct Layout`](/documentation/UIKit/UIView/Invalidations/Layout)

A change that invalidates the layout of the containing view’s subviews.

[`struct Tuple`](/documentation/UIKit/UIView/Invalidations/Tuple)

A change that invalidates a combination of factors covered by the other invalidation types.

### Structures

[`struct Properties`](/documentation/UIKit/UIView/Invalidations/Properties)

---

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