I'm developing a tablet application for a cafe. The application is for commercial use only and will not be published on the app store. This is an application for the user to place an order, such as kiosks at McDonald's or KFS. I want the user to have no way to minimize or close this application. I want to make a dialog box where you need to enter a password to close it. How can i do this? enter image description here
Also, please tell me how to remove the three dots at the top that change the appearance of the screen and how to remove home indicator at the bottom (that black stick)