Use APKPure App
Get Screen Off old version APK for Android
Icon floating in all your APP
Turn off the screen and lock it in one click without touching the power button with "Screen Off Floating".
Preserve power button.
You have a floating icon above each app, which you can drag wherever you want.
YOU CAN USE:
◆ Floating icon in all your App
◆ Notification
◆ Shortcut in home-screen
◆ Google Now button shortcut
This app uses the Device Administrator permission.