tablet - Running full-screen Android application with screen/backlight off -

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here's need do. want use android tablet science research, need programmatically control screen/backlight. specifically, there mode app need communicate other systems via wifi, play sounds, , have touchscreen active, backlight must off; in mode, device cannot emit light, or interfere science. obviously, cannot sleep mode! feasible?

i've looked around bit, , this sounds promising, isn't crystal-clear (to me, anyway!) whether work. can vouch that?

finally, matter tablet choose? basically, there seem 3 possibilities: backlight controlled switch (doubt done anymore), cpu can turn on or off, or cpu can adjust fully. writing makes me feel rather silly being concerned, samsung rep yesterday told me can't on galaxy. care recommend tablet?

thanks!

specifically, there mode app need communicate other systems via wifi, play sounds, , have touchscreen active, backlight must off

android not support "have touchscreen active, backlight must off". and, not have ability turn backlight "completely off" programmatically.

i've looked around bit, , sounds promising

that sets backlight low. devices may elect turn backlight off when set low. device manufacturer.

finally, matter tablet choose?

see above.


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