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# willMove(toWindow:)

Tells the view that its window object is about to change.

```
func willMove(toWindow newWindow: UIWindow?)
```

## Parameters

`newWindow`

The window object that will be at the root of the receiver’s new view hierarchy. This parameter may be `nil`.

## Discussion

The default implementation of this method does nothing. Subclasses can override it to perform additional actions whenever the window changes.

---

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