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# cubicTimingParameters

The cubic timing parameters to use.

```
var cubicTimingParameters: UICubicTimingParameters? { get }
```

## Discussion

Implement this property and use it to provide your custom cubic timing information. If the value of the [`timingCurveType`](/documentation/UIKit/UITimingCurveProvider/timingCurveType) property is [`UITimingCurveType.builtin`](/documentation/UIKit/UITimingCurveType/builtin), [`UITimingCurveType.cubic`](/documentation/UIKit/UITimingCurveType/cubic), or [`UITimingCurveType.composed`](/documentation/UIKit/UITimingCurveType/composed), you must return an object from this property. The object you return can specify one of the built-in UIKit curves, such as [`UIView.AnimationCurve.linear`](/documentation/UIKit/UIView/AnimationCurve/linear), or it can specify a timing curve based on a custom Bézier path.

For more information about configuring this object, see [`UICubicTimingParameters`](/documentation/UIKit/UICubicTimingParameters).

---

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