can I use activiy one time(register activity) and switch the main launcher to different activity?
<p>can I use activiy one time(register activity) and switch the main launcher after using to different activity?</p>

<p>another question if I may,
If I create parameter x in one of the activities in my application, can I use this parameter in other activities?...If yes, how I can do that?</p>

<p>thanks :)</p>
