there are sevel ways, Kepler.
some use the tabview to jump to pages.
others use a sliding panels lib.
while other use a screen with buttons that either
- open new activity screen
- hide all panels and show the selected panel
the above can be done in the layout designer with just 1 layout as you requested.
For a small app I prefer the above but other people might like it to do it on another way.
But you have enough options