With this File Cover for Android application you can choose pictures from any category, including the camera or downloaded images. This application allows you to hide images from the gallery. Then, whenever you want, you can reveal your images to the gallery to view, with a single click. And with another click you can hide them all again. You can set a password for the program, so no one else can get access. You can long-press on an image to start a slide show or move the image back into another gallery folder.