Stuffs You're Gonna Need:   A working android device.  A File Manager (default).  Few fingers to work with.  A Goat (optional).          F irst of all switch on your phone and unlock it .  N ow open your file manager. For this tutorial, I'm using the default file manager of Galaxy Y.          N ext go to your file manager settings and look for the term,  Show Hidden Files/Folders . And enable/mark it as shown in the figure below. Then save your settings.         N ow rename the existing folder you want to hide or create a new one.   While renaming the folder just add an extra dot (.) right before all the characters. And save it. Refer to the following screenshot for better understanding.         A fter that go to the file manager settings again and disable/unmark  Show Hidden Files/Folders  option. You're all done. The files at the folder will not be viewable at Gallery.