Android on the APF27 - adding go back button

[Fadwa]

Hi all,

I ported Android on the board APF27.

The problem that the APF27 does not have a keypad to use :
- red button
- green button
- back button
- and menu

When i enter an application i can not go back to the main menu.

I am trying to make a menu on the bottom of the screen (to implement
the back function) but i don't know how to make this menu always
visible in every screen.

Thank you very much