Once you have installed Knock Code

Once you have installed Knock Code module, activate it via Xposed and reboot. After that, follow the steps mentioned below.

Open up Knock Code from your app drawer and set your own custom Knock Code (with knocks between 2 to 8).
After this, go to your device’s Settings -> Security -> Screen lock, and set a simple unlock pattern while keeping in mind that it has to be a 3*3 grid.
That’s It! But don’t forget to reboot your device immediately after the above couple of steps.
One thing to keep in mind is that you should reboot your device immediately after changing your Knock-code (every time you change it in the future) and BEFORE locking the screen even once. Failing to do this, you might end up getting restarts of the System UI.
This locking mechanism will remain active only till the ‘Knock Code’ Xposed module remains active.
That’s it! You can now wake your screen and unlock it with your preferred knock code! This wasn’t too complicated, was it? And what you get in return, is a cool way to unlock your device without any hassles. We are sure that now onwards you won’t be entering that fiddly pattern to unlock your device, and would gently be giving it a knock instead!