title: Custom information bubble on tap for overlay items using osmdroid
body: <p>I'm using osmdroid on my new Android project (since I want to be able to use offline maps) but I encounter many difficulties to customize the look 'n feel of the information bubble assigned to an overlay item.</p>
  
  <p>Right now, I'm using an <code>ItemizedOverlayWithFocus</code> overlay to display my items; looking at <a href="http://code.google.com/p/osmdroid/source/browse/trunk/osmdroid-android/src/org/osmdroid/views/overlay/ItemizedOverlayWithFocus.java?r=802" rel="noreferrer">its code</a>, I noticed the whole thing was drawn in the <code>onDrawFinished</code> method so I tried to create my own custom overlay to override this method but this is pretty difficult to get a result. What I would love to get is something just like this :</p>
  
  <p><img src="https://i.stack.imgur.com/la4ex.png" alt="The result"></p>
  
  <p>How did you guys managed to get a custom information bubble on your projects?</p>
  
  <p>I found a few classes to implement such a thing for Google's MapView (like <a href="https://github.com/jgilfelt/android-mapviewballoons" rel="noreferrer">Jeff Gilfelt's MapView Balloons</a>) but nothing for osmdroid.</p>