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# UIViewInvalidating

Implements a type of invalidation that can occur on a view that requires an update.

```
protocol UIViewInvalidating
```

## Topics

### Specifying invalidation types

[`configuration`](/documentation/UIKit/UIViewInvalidating/configuration)

A change that invalidates a view’s configuration.

[`constraints`](/documentation/UIKit/UIViewInvalidating/constraints)

A change that invalidates a view’s constraints.

[`display`](/documentation/UIKit/UIViewInvalidating/display)

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

[`intrinsicContentSize`](/documentation/UIKit/UIViewInvalidating/intrinsicContentSize)

A change that invalidates a view’s intrinsic size.

[`layout`](/documentation/UIKit/UIViewInvalidating/layout)

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

### Invalidating the view

[`invalidate(view:)`](/documentation/UIKit/UIViewInvalidating/invalidate(view:))

Indicates to the system that an aspect of a view is invalid and triggers the necessary update.

[`UIView.Invalidations`](/documentation/UIKit/UIView/Invalidations)

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


---

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