ZeroTransfer

ZeroTransfer disables Wlan connection if the case of the tablet is closed or the screen shut off. You could also set a grace time for it. On wake up the connection is established again.

Donator:

* No self-promotion in the app.

* Some more options like: daydream, charger and Tasker support

* You support this app and further development!

IMPORTANT

Your device has to be rooted to install the required X-posed framework: http://tinyurl.com/cd46qco

Donator-App & Features: https://play.google.com/store/apps/details?id=de.defim.apk.zerotransfer.donator