---
title: hapticIntensity
framework: corehaptics
role: symbol
role_heading: Type Property
path: corehaptics/chhapticevent/parameterid/hapticintensity
---

# hapticIntensity

The strength of a haptic event.

## Declaration

```swift
static let hapticIntensity: CHHapticEvent.ParameterID
```

## Discussion

Discussion This parameter maps to the haptic pattern’s amplitude or strength. Its value ranges from 0.0 (weak) to 1.0 (strong). Think of intensity as the volume of a haptic pattern, indicating how impactful it feels in the user’s hand. The higher the haptic intensity, the stronger the resulting haptic.

To change the intensity dynamically, use hapticIntensityControl.

## See Also

### Haptic Event Parameter IDs

- [hapticSharpness](corehaptics/chhapticevent/parameterid/hapticsharpness.md)
- [attackTime](corehaptics/chhapticevent/parameterid/attacktime.md)
- [decayTime](corehaptics/chhapticevent/parameterid/decaytime.md)
- [releaseTime](corehaptics/chhapticevent/parameterid/releasetime.md)
- [sustained](corehaptics/chhapticevent/parameterid/sustained.md)