add ignore rule that for intellij
import facebook andorid sdk 3.0.2
implement Facebook login
implement contacthelpr to retrieve contact data
add guava14.0.1 library
implement fetching friends from facebook without reload (in case you have too many friends)
add loading indicator to CheckMatchFriendsActivity
storing fetched friend's on our data structure
check matching friend and show it on own listview
add default contact picture from android icon set
import volley library
add profile picture loading functionality using volley