auto brightness in Ray without root

[iamviveksri]

can we have auto brightness [when u go out in sunlight, brightness should increase automatically and reverse when u come in shade] in Ray without having to root it please?
please mention any app which can do the trick.. i tried auto brightness switch app but its not working in Ray

 

[Josh-SonyXperia]

I tried looking for an app but I was unable to find one that does what you are looking for. All the ones on the Market only give you an option to adjust the brightness on different levels by using a widget.