Complete The Chat App , Tasks :
1- Chat between two users.
2- CHATS tab , "Top preview the active chats so user can open the running chats directly without having to open it from contacts again".
3- Sending , Receiving , msgs through the API i will provide.
4- count the unread (unopened) messages on each conversation , the unread message amount will be placed at the opened CHATS tab , each chat with the user will hold the amount of unread msgs on it.