Fragments and tabs with deeper navigation
<p>Over here: <a href="http://developer.android.com/reference/android/app/TabActivity.html" rel="nofollow">http://developer.android.com/reference/android/app/TabActivity.html</a> there's an example of how to use fragments directly with a tabhost. I'm not clear on whether that design is intended to be used in cases where you want to, say, replace the existing fragment inside of a tab and so on. </p>

<p>Like, say you want some button in tab 1's initial fragment to start a fragmenttransaction that replaces the current fragment, etc. In the example, things are pretty simple: each tab is associated with a particular fragment and in onTabChanged, any previous fragment is detached and the new one is added. But what if you want each tab to keep track of its own backstack, etc in terms of fragment transactions?</p>

<p>In other words, can this example be extended to truly function like the deprecated tabactivity/tabhost design, where each tab has its own deeper navigation?</p>
