If you really want .nomedia to do its job, follow these 3 stepsxe2x80x8a:
xe2x80xa2xe2x80x8a add a .nomedia to whichever folders you choose
xe2x80xa2xe2x80x8a flush your photo gallery app's cache/data using your device's app mgr
xe2x80xa2xe2x80x8a download/install a free media scanner app from the market (there are several) and invoke itxe2x80x8axe2x80xa6 this last step will rebuild the photo gallery's cache/dataxe2x80xa6 CORRECTLY this timexe2x80x8a!
Plus, you don't even need a rooted device for thisxe2x80x8a: first step you can use any file mgr, even the dinky one that comes stock with Android devices, second step you can use your device's own app mgr as stated, and third step there are media scanner apps both for and without root, diff is only in some extra options, but invoking the Android media scan service itself is just one single line of code, no root needed.