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POMove back to previous Activity from another Activity, don't know where Activity is in stack
 

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    <p>I have a <code>TabActivity</code> that is the "base" <code>Activity</code> in my application. From the <code>TabActivity</code> a user can navigate through new Activities that are not a part of the original TabHost (I'm not messing around with TabGroups or anything like that).</p> <p>My application also has a global options menu, from which a user should be able to navigate back to the original <code>TabActivity</code> and select a certain tab. For example, if the user selected the left-most options menu item, they would go to the left-most tab in the original <code>TabActivity</code>.</p> <p>How can I accomplish this behavior? I do <em>not</em> want to start a new <code>TabActivity</code> because the original <code>TabActivity</code> has data propogated on it like Map points and a ListView. Ideally I would like to go back to that specific <code>TabActivity</code>. This movement can also occur at any point in the lifecycle, e.g.:</p> <p>Original <code>TabActivity</code> -> Activity1 -> Activity2 -> Activity3 -> Activity <em>n</em> ->Back to Original <code>TabActivity</code></p> <p>Original <code>TabActivity</code> -> Activity1 -> Back to Original <code>TabActivity</code></p> <p>There can be any number of Activities launched in between the navigation. Therefore, calling <code>finish()</code> in the current Activity won't satisfy this (as far as I know...).</p> <p>My questions/concerns:</p> <ol> <li>Primarily, how to accomplish this.</li> <li>It <em>is</em> possible that the original <code>TabActivity</code> could be removed from the stack due to memory, correct? If so, how to deal with that? I assume if I figured out a way to locate the original <code>TabActivity</code> I could just do a check for null and if it's not there, start a new <code>TabActivity</code>.</li> </ol>
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