Start another activity (by Intent) on half screen

I开发者_如何转开发s it possible to start an activity (ie. Calculator) from within my main activity but in such a way that it only takes a part of the screen and not the whole screen?

I don't think you can do that before honeycomb fragments.

But nothing prevents you from taking your calculator apart, and make it a reusable view.

I would look into using a tabhost for that:

http://developer.android.com/resources/tutorials/views/hello-tabwidget.html