I have looked a bit in the iOS 9.3 API Diffs, as well as searching the developer website and forums and did not see any references.
Is it possible to determine if Night Shift is active? I would assume that applications which require true color tone would want to alert a user if the screen colors were being augmented by the system.
Android Device You should be able to find the filter under Settings > Display. Look for an option for Night Light or Blue Light filter and turn it on. In most cases there should be a way to schedule the feature and adjust the color temperature to your liking.
To get to this setting, you need to go to Settings -> Display & Brightness -> Night Shift. When you schedule Night Shift, the default is to have the mode activate at sunset, and then deactivate at sunrise. You can also set custom start and stop times for the mode, which is what we'll take advantage of.
A new study from Brigham Young University (BYU), published in Sleep Health, challenges the premise made by phone manufacturers and found that the Night Shift functionality does not actually improve sleep.
By default, Night Shift turns on from sunset to sunrise.
Apple does not provide an API for accessing the users Night Shift setting.
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