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everyone,

I'd like to design a android app with infrared background light. (Invisible light)

Is there any method to control the background light in certain wavelength(frequency)?

Also, I want to keep it working in background after user opened it. I mean that it will change the background light of users' phones until they close my app completely.

Since I could only find visible background light codes

android:background="@color/white"

<color name="white">#FFFFFF</color>

from this post

Thanks you for any suggestions.

Community
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Blues
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    Please name any Android device ever made that has a display that is capable of emitting in the infrared spectrum. – CommonsWare Jan 22 '17 at 14:44

1 Answers1

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I dont think this is possible, because the leds used for screen backlights are designed to create a single wavelenght of light and cannot be varied, the colors are created by the pixels. To create an infrared light you may use dedicated light emitting diodes.

97hilfel
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