---
title: unspecified
framework: swiftui
role: symbol
role_heading: Type Property
path: swiftui/proposedviewsize/unspecified
---

# unspecified

The proposed size with both dimensions left unspecified.

## Declaration

```swift
static let unspecified: ProposedViewSize
```

## Discussion

Discussion Both dimensions contain nil in this size proposal. Subviews of a custom layout return their ideal size when you propose this value using the dimensions(in:) method. A custom layout should also return its ideal size from the sizeThatFits(proposal:subviews:cache:) method for this value.

## See Also

### Getting standard proposals

- [zero](swiftui/proposedviewsize/zero.md)
- [infinity](swiftui/proposedviewsize/infinity.md)