title: Typographic approach to a layout for a View in Android
body: <p>Preface:
  I have a background about Tex/Latex and HTML/CSS and their metric system</p>
  
  <p>This question is about to try to maintain the same metric approach with an Android View, long story short i would love to do 2 things:</p>
  
  <ul>
  <li>use typographic units like the <code>em</code> </li>
  <li>have a layouts composed with block units, like a book where you have a big container in the center of the page for the biggest part, a small rectangle as footer and/or as header, and eventually some floating box that contains some quotes or images.</li>
  </ul>
  
  <p>Probably i can start from a Relative Layout <a href="http://developer.android.com/guide/topics/ui/layout/relative.html" rel="nofollow">http://developer.android.com/guide/topics/ui/layout/relative.html</a></p>
  
  <p>My problem is i don't get what are all the typographic units available on Android.</p>
  
  <p>I also don't get if there is a "Z axis management" that can allow a container and its content to be rendered on top of another underlying container. Something like when 2 box of text are near to each other and i want some text to break the box limits and still be rendered on top of the other box.</p>
  
  <p>Maybe there is also some flow control on the text?</p>