title: MapFragment in DialogFragment
body: <p>Is there a way on use a <code>MapFragment</code>, or a <code>SupportMapFragment</code>, extending a <code>DialogFragment</code> to be showed as a popup window, the same way as used to display a DatePicker? 
  I want to build it to let the user to select a LatLng from the map. I don't want to put the <code>MapFragment</code> direct into the form because it is wrapped by a <code>ScrollView</code>. Thanks for possible solutions.</p>