This is a simple and convenient lock screen plugin, just double tap on blank area in supported Launcher, you can quickly turn off and lock screen. This plugin may liberate the power button to extend the phone hardware life. Notice for use: 1. This plugin needs to be used with the supported Launcher, currently support Nougat Launcher, S7 Launcher2. At the same time, you need to activate the Device Manager for this plugin3. If you need to uninstall, first deactivate Device Manager, and then uninstall. If you like this convenient plugin, please share it with your friends. Thank you.