Specifies the interface that consumers of Request.executeMeRequestAsync(Session, com.facebook.Request.GraphUserCallback) can use to be notified when the request completes, either successfully or with an error.
The method that will be called when the request completes.
public void onCompleted(GraphUser user, Response response)
|The GraphObject representing the returned user, or null|
|The Response of this request, which may include error information if the request was unsuccessful|