Which object use in Android instead of NotificationCenter in IOS?

IOS use NotificationCenter likes below:

    let failureObserver =    NSNotificationCenter.defaultCenter().addObserverForName(downloadEndFailureNotificationName, object: nil, queue: nil) { (notification) in

        //Process failed result
        self._processFailureResultData(forID: coectionID)

    }

So, what is using instead of NotificationCenter in Android?