Android How to pass real time data up the stack from local service to the activity?

I have a local service that will need to wait for a response and when it gets the response immediately update the activity with that information. So the activity will not poll a service method but the moment the local service gets some data it has to inform that activity immediately somehow.

So Activity--binds-->LocalService <------>(RemoteService separate process). So I know I could just package it up in an intent and pass it up to the activity ... but is that the best/only option. How else might one communicate up the stack from the local service to the activity thats invoking the local service? Keep in mind I already have the local service binding to a 开发者_开发技巧remote separate process service which runs forever in the background and periodically sends realtime data to the local service. Thanks

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you can pass the handler object of the activity to service thru setter() and using this object you can update the change in the activity.