I am making a simple game with levels and want to integrate facebook like it is in candy crush
1. To know at what level my friends are at and show it in the game
2. To send requests like candy crush does
3. To integrate these features in android game
Please help, i could not find anywhere how to implement this, i mean its ok with simple facebook integration and posting scores but these feature may require some good working to implement i guess!
and i am ready to do whatever it is, just please help me and tell me how!!!