title: Expandable Height RecyclerView
body: <p>I'm recently tried RecyclerView component from Google, it's an amazing and powerful than ListView.
  The problem is when use it in ScrollView, I was using <a href="http://www.londatiga.net/it/programming/android/make-android-listview-gridview-expandable-inside-scrollview/">ExpandableHeightListView</a>, it was working properly, but I want to turn to completely using RecyclerView.
  Can anyone help me to find component like ExpandableHeightListView? or How to use RecyclerView in ScorllView?</p>