How to prevent user from closing application - Android 4.0.3

Question

So my question is: If is possible to prevent user from closing application.

Problem is because i can't hide action bar and i use tablet only for work time registration. So if someone press home button or back button is that not acceptable.

So i wonder if i could somehow handle onclose event?

Is it possible to open application in fullscreen (with no action bar)?

Answer 1

You cannot prevent user from closing application if he presses home button. That's the whole idea of it. Otherwise, you could leave user trapped in your app with no means to exit but to reboot it's device.

Answer 2

Short answer is no.

Long answer is that you can make it quite difficult for the user to close you app. Some of the tricks that can be used are: reopen you app as soon as it closes , disable keys like back and power and finally disable the home button