Android notify when phone book is updated(Content Observer)

Question

I want to get a notification on my phone if there is any change in the contact database(add,delete).Right now i am using ContentObserver to get notified.Following is my code

Answer 1

Observer does not provide the information that which contact is added/update/deleted. To get to know this save the contacts in your own DB table and when observer send the change notification check it with system's Contacts.