---
title: window
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uiview/window
---

# window

The receiver’s window object, or nil if it has none.

## Declaration

```swift
var window: UIWindow? { get }
```

## Discussion

Discussion This property is nil if the view has not yet been added to a window.

## See Also

### Managing the view hierarchy

- [superview](uikit/uiview/superview.md)
- [subviews](uikit/uiview/subviews.md)
- [addSubview(_:)](uikit/uiview/addsubview(_:).md)
- [bringSubviewToFront(_:)](uikit/uiview/bringsubviewtofront(_:).md)
- [sendSubviewToBack(_:)](uikit/uiview/sendsubviewtoback(_:).md)
- [removeFromSuperview()](uikit/uiview/removefromsuperview().md)
- [insertSubview(_:at:)](uikit/uiview/insertsubview(_:at:).md)
- [insertSubview(_:aboveSubview:)](uikit/uiview/insertsubview(_:abovesubview:).md)
- [insertSubview(_:belowSubview:)](uikit/uiview/insertsubview(_:belowsubview:).md)
- [exchangeSubview(at:withSubviewAt:)](uikit/uiview/exchangesubview(at:withsubviewat:).md)
- [isDescendant(of:)](uikit/uiview/isdescendant(of:).md)