---
title: updateConstraints()
framework: swiftui
role: symbol
role_heading: Instance Method
path: swiftui/nshostingview/updateconstraints()
---

# updateConstraints()

## Declaration

```swift
@MainActor @preconcurrency override dynamic func updateConstraints()
```

## See Also

### Configuring the view layout behavior

- [requiresConstraintBasedLayout](swiftui/nshostingview/requiresconstraintbasedlayout.md)
- [userInterfaceLayoutDirection](swiftui/nshostingview/userinterfacelayoutdirection.md)
- [isFlipped](swiftui/nshostingview/isflipped.md)
- [layerContentsRedrawPolicy](swiftui/nshostingview/layercontentsredrawpolicy.md)
- [layout()](swiftui/nshostingview/layout().md)
- [safeAreaRegions](swiftui/nshostingview/safearearegions.md)