how to turn off the screen (not the phone) of galaxy j7 2017 without using thepower button

[Android Central Question]

Like double tapping on the windows button ...

 

[B. Diddy]

Welcome to Android Central! Try a 3rd party app like Screen Off and Lock.

 

[Rukbat]

Or you could use Proximity Service to turn the screen off any time something's near the top of the screen - like laying it down face down.