LockScreen

Locks the screen

Lock Screen is a free android app that locks your screen (this is NOT a widget).

This app requires Device Administration to lock the screen,

and Device Administration needs to be disabled before uninstall.

This app works best with PIN unlock or Pattern unlock,

if you use Fingerprint unlock then you will still need to enter your PIN or Pattern after locking with Lock Screen,

this is a feature of Android's Device Administration.