How to hide Whatsapp photos and videos from Android Gallery

This is a very simple way to hide Whatsapp photos and videos from Android Gallery.

What you need:Any file Manager app. I am using ES File Explorer (https://play.google.com/store/apps/details?id=com.estrongs.android.pop&hl=en)

How to do:

Step 1: Enable "show hidden files option in File Explorer
                how to do this:

a)Click on Settings

b)select display settings

c) check " show hidden files" option

Step 2: Copy the file named ".nomedia" from "Profile Pictures" folder Under "Whatsapp" folder
Step 3: Paste the ".nomedia" file into "Whatsapp" folder

Theory:
You can also create an empty file with name ".nomedia" (note the file name begins with '.')
The gallery ignores any folders which contains a file named '.nomedia'