---
title: resistance
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uidynamicitembehavior/resistance
---

# resistance

The linear resistance for the behavior’s dynamic items, which reduces their linear velocity over time.

## Declaration

```swift
var resistance: CGFloat { get set }
```

## Discussion

Discussion Default value is 0.0. Valid range is from 0.0 for no velocity damping, to CGFLOAT_MAX for complete velocity damping. If you set this property to 1.0, a dynamic item’s motion stops as soon as there is no force applied to it.

## See Also

### Configuring a dynamic item behavior

- [addAngularVelocity(_:for:)](uikit/uidynamicitembehavior/addangularvelocity(_:for:).md)
- [addLinearVelocity(_:for:)](uikit/uidynamicitembehavior/addlinearvelocity(_:for:).md)
- [allowsRotation](uikit/uidynamicitembehavior/allowsrotation.md)
- [angularResistance](uikit/uidynamicitembehavior/angularresistance.md)
- [angularVelocity(for:)](uikit/uidynamicitembehavior/angularvelocity(for:).md)
- [linearVelocity(for:)](uikit/uidynamicitembehavior/linearvelocity(for:).md)
- [density](uikit/uidynamicitembehavior/density.md)
- [elasticity](uikit/uidynamicitembehavior/elasticity.md)
- [friction](uikit/uidynamicitembehavior/friction.md)
- [charge](uikit/uidynamicitembehavior/charge.md)
- [isAnchored](uikit/uidynamicitembehavior/isanchored.md)