Is it possible to just detect (not change) current brightness level on iOS screen? [closed]

Question

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.

---

Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist

Closed 8 years ago.

Improve this question

Is it possible to just detect (not change) current brightness level on iOS screen? For example, I am trying to set a certain brightness value at which the UI/styles may change based on the current context. Sort of like responsive stylesheet switching, but instead of using dimensions I want to change per brightness.

If you have heard of this on any mobile operating system, please let me know that as well. Thank you for your time!

I am asking this to propose a project to an engineer, thus my limited knowledge of the code. Just looking for a yes or not possibility. I need to understand the feasibility before I propose it and have not found information on this elsewhere.

Answer 1

Just to clarify since you seem confused between getters and setters:

To read either:

float brightness = [[UIScreen mainScreen] brightness];

or

float brightness = [UIScreen mainScreen].brightness;

To change:

float brightness = XX;
[[UIScreen mainScreen] setBrightness:brightness];

or

float brightness = XX;
[UIScreen mainScreen].brightness = brightness;