---
title: timingCurve
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uipercentdriveninteractivetransition/timingcurve
---

# timingCurve

The timing curve to use when driving the animations.

## Declaration

```swift
var timingCurve: (any UITimingCurveProvider)? { get set }
```

## See Also

### Accessing transition attributes

- [completionCurve](uikit/uipercentdriveninteractivetransition/completioncurve.md)
- [duration](uikit/uipercentdriveninteractivetransition/duration.md)
- [percentComplete](uikit/uipercentdriveninteractivetransition/percentcomplete.md)
- [completionSpeed](uikit/uipercentdriveninteractivetransition/completionspeed.md)
- [wantsInteractiveStart](uikit/uipercentdriveninteractivetransition/wantsinteractivestart.md)