Being able to operate the screen through material

[Hormone]

Hi,

I thought smartphones and their screens would only operate with skin to screen contact.

I was able to operate through a t-shirt. WTF?

Is this supposed to happen?

[Uliwooly]

yes it is supposed to happen, this is how Capacitive sensing works

the human body is also an electrical conductor, touching the surface of the screen results in a distortion of the screen's electrostatic field, measurable as a change in capacitance

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[Hormone]

Its just my iphone 3gs did not do it. I find it good because it would then not activate something in my pocket.

[Uliwooly]

if you keep it in your pocket leave the screen facing away from your body

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