Removing an activity from the history stack
<p>My app shows a signup activity the first time the user runs the app, looks like:</p>

<ol>
<li>ActivitySplashScreen (welcome to game, sign up for an account?)</li>
<li>ActivitySplashScreenSignUp (great, fill in this info)</li>
<li>ActivityGameMain (main game screen)</li>
</ol>

<p>so the activities launch each other in exactly that order, when the user clicks through a button on each screen.</p>

<p>When the user goes from activity #2 to #3, is it possible to wipe #1 and #2 off the history stack completely? I'd like it so that if the user is at #3, and hits the back button, they just go to the homescreen, instead of back to the splash screen.</p>

<p>I think I can accomplish this with tasks (ie. start a new task on #3) but wanted to see if there was simpler method,</p>

<p>Thanks</p>
