What are the meanings of Navegation Type & Hierarchical in eclipse android project
<p>I am creating a new project, but when I come on the "New Blank Activity" Screen, I found a selection list named as "Navigation Type" and immediately below this there is "![Hierarchical][1] Parent" text field. can any one tell me what is the purpose and how I will fill these fields.</p>

<p>Thanks in advance....</p>

<p>Rizwan</p>
