Reimplement Expand/Shrink ListView
- Save and Restore cards' open/close states when cards in the ListView are recycled
- Add sample ListView + Custom Card + Adapter code & demonstrate ViewHolder pattern
Add UP and DOWN swipe directions to GestureDetector
Merge pull request #5 from cheah/expand-and-shink-list

Reimplement Expand/Shrink ListView
Merge pull request #6 from cheah/add-gestures-directions

Add UP and DOWN swipe directions to GestureDetector