Lock Screen Shortcut

After installing, open the app and it will show you the "Device Administrator" permission. This is required by Android to allow the app to lock your screen. Your device's settings window will show and all you have to do is check the box next to the app. After that, you're free to use the app as a shortcut to lock your screen fast.

This is best used if you place it on the swipe up from home button menu. When you swipe up from the home button after granting this app device administrator permission then you will be shown a "Complete action using" dialog. Tap "Lock Screen" and then "Always".