OI file manager is one of the best open source file manager available for android
it is very light and has a very simple and user interface which is very easy to get used to.
Now I would suggest for OI file manager application to add security lock feature to make user more secure using this application.
Display for now
My suggestions
the benefits of this feature, the user can safely store pictures or personal video without any fear seen by others, just make a safety for this application and all images or video will be stored safely.
