Android Edit Control Panel

Question

I want to hide everything on the navigation bar, except for the Back button (root tablet), I completely hid the navigation bar (to restrict users' access to other applications and device settings), but customers didn’t like it because when users opened PDF files or The videos they forcedly used to return to my application in order to return to my application, so the only way is to configure the navigation bar to display only the back button, any suggestions?

EDIT: Is it possible to create my own navigation bar as a full screen?

Answer 1

It looks like you want to make a kiosk tablet. An easily customizable rum with a navigation bar that only has a back button may be what you want to do.