I made an app which I want to install in system/app directory so that user can not uninstall it. but I want to do it without rooting device. as soon as user download app it will be install in system/app directory.
I want to do this by writing code.
I am aiming that users are not allow to uninstall it.
Only system level applications (i.e. preloaded applications like Gallery, Video Player, Music Player, SystemUI etc ) resides in /system/app folder and they have super user (or root equivelent) permission
As programmatically, without rooting device, any 3rd party application cannot be installed to /system/app/ folder