How To Hide Any Folder -:
1) Install Es File Explorer From Playstore if You Don't have
2) Open It And Long Press on Your Folder
3) Click On "I" Icon Which Is Rename Option
4) Now Cut All Word And Type Like The Screenshot -:
.nomedia
After That
5) Now Click Ok And Save It
6) Cool! You Have Successfully Hide Your Folder
How To Un hide -:
1) Click On Menu Option
2) Choose "Tools" Option
3) Now Click On "Show Hidden Files"
Awesome You Are Done Now!!!!