About Ambient Light sensor in iphone

Question

Thanks in advance.

I got the information about the iphone sensors from http://ipod.about.com/od/ipodiphonehardwareterms/qt/iphone-sensors.htm. But I didn't get information about how to use ambient sensor in iphone

Answer 1

Here's a link to a description of the ambient light sensor hardware with example code that shows how to access it.

Answer 2

It is possible, and the framework is public.

You can activate the connection to the sensor like so :

[[UIDevice currentDevice] setProximityMonitoringEnabled:YES]; 

BTW, it doesn't seem to be using the light sensor, because proximity sensing would tweak out in a dark room.

However, the API call basically blanks the screen when you hold the phone up to your face. Not useful for interaction, sadly.

Here is a guide about iPhone sensors : iPhone sensors