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According to the developer documentation, the parameter hapticsharpness is not explained very clearly to me because there are only descriptions about haptic feedback, and no physical meaning.

I tried to figure it out from the vibration waveforms I tested in the lab, but it turns out that sharpness will affect both vibration acceleration and frequency. So, it comes to my second question: what is the point of creating another parameter hapticintensity if sharpness can already control acceleration? Any idea will be much appreciated.

Yunjia You
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I think the documentation is pretty clear about the fact that hapticIntensity refers to the amplitude (strength) of the vibration, whereas hapticSharpness controls the nature / feel of it.

Imagine a scenario where you want to simulate a knee-jerk reaction like an error, you might want to use a haptic feedback with a high sharpness, whereas imagine a scenario where you want to convey a soothing haptic feedback like maybe a calm loading indicator (nothing more useful comes to my mind right now ☺️).

You may want to still vary the intensity of these haptic which feedback while still maintaining the same 'feel'. If you had a single API then this would not be feasible.

Aman Shankar Sharma
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