If you put a ".nomedia" file in a folder, to make not appear in the Galery, the folder is not visible, just until it get any now image. For exemple, try to put a ".nomedia" file in "Screenshots folder" and them take a new screenshot. The new one will be visible on galery and the all the screenshots you do after that also. So you have to delete the ".nomedia" file and creat a new one. But again, images will be invisble just till the new image come in. Does anyone have a solution to this?