How can I get the brightness of outside environment by iPhone?

Question

As we know that iPhone's screen can adjust itself automatically as the brightness changes around, so it should get the brightness of the outside first, right? That's what I thought. So now I just want to get the brightness of the outside environment throught its opt0-sensor, but I don't know how?

Can anybody be kind to help me? Thanks a lot!

score 1 · Answer 1 · answered May 28 '12 at 08:33

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You can use the camera and get the degree of brightness with the help of some image processing techniques as far as i know. Otherwise the iPhone configurations detecting the outside ambiant light is quite blackboxed for devs.

answered May 28 '12 at 08:33

Christopher Nassar

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yes, this is a way, but i just want to use the sensor but the camera, is there any ideas? and thanks btw.:) – bluemoon1413 May 28 '12 at 09:00

score 0 · Answer 2 · edited May 23 '17 at 10:09

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Unfortunately, according to this question, accessing the ambient light sensor data require access to private headers which is forbidden on the App Store.

edited May 23 '17 at 10:09

Community

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answered May 28 '12 at 08:30

PatrickNLT

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How can I get the brightness of outside environment by iPhone?

2 Answers2