---
title: "init(dampingRatio:)"
framework: uikit
role: symbol
role_heading: Initializer
path: "uikit/uispringtimingparameters/init(dampingratio:)"
---

# init(dampingRatio:)

Creates a timing parameters object with the specified damping ratio.

## Declaration

```swift
convenience init(dampingRatio ratio: CGFloat)
```

## Parameters

- `ratio`: The damping ratio for controlling the spring’s behavior. For more damping and less oscillation, specify a value of 1. For less damping and more oscillation, specify values closer to 0.

## Return Value

Return Value An initialized spring timing parameters object or nil if the object could not be created.

## Discussion

Discussion This method sets the initial velocity of any animated properties to 0.0.

## See Also

### Initializing a spring timing parameters object

- [init()](uikit/uispringtimingparameters/init().md)
- [init(dampingRatio:initialVelocity:)](uikit/uispringtimingparameters/init(dampingratio:initialvelocity:).md)
- [init(mass:stiffness:damping:initialVelocity:)](uikit/uispringtimingparameters/init(mass:stiffness:damping:initialvelocity:).md)
- [init(coder:)](uikit/uispringtimingparameters/init(coder:).md)