如何识别哪种手指类型-无论是食指，中指等

Question

How To recognise in iOS which finger I used for tap in iOS; Left hand, Thumb: off Index: on Middle: on Ring: off Pinky: off

Answer 1

Short answer is that it cannot be done.

It is not something Apple could/would generate either as their code is designed for an extremely broad audience and something like finger sizes is a huge variant - A 7ft person may have enormous fingertips while a young child has very small fingertips. Also some users use their thumbs and others use their index fingers.

IF, and I say a BIG if, is if you wished to create this, you would have to create something that stored a user initially, asked them to go through touching a certain point on the screen for every finger, store their finger touches (assuming they consistently touched in the same manner almost 100% of the time- soft touches would cover less area so consistency would very difficult to conjure an algorithm to recognise correctly) and then assume that they would be touching certain things on a screen that was modern enough to recognise and measure accurately the specific space being touched on a screen.