attackTime
The time at which a haptic pattern’s intensity begins increasing.
Declaration
static let attackTime: CHHapticEvent.ParameterIDDiscussion
This parameter can be an event parameter or a dynamic parameter. An event parameter indicates that the haptic begins increasing in intensity at the set time, where time 0 indicates now, or the current time.
A dynamic value indicates that the time at which ramp-up begins can change. For example, a value of 0 indicates that the attack time is at its default value. Positive values up to 1.0 increase the attack time exponentially, while negative values down to -1.0 decrease the attack time exponentially. Haptic intensity responds to this parameter.
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