This library (com.android.media.tv.remoteprovider.jar) is a shared java library containing classes required by unbundled atv remote providers. --- Rules of this library --- o This library is effectively a System API for unbundled emote service provider that may be distributed outside the system image. So it MUST BE API STABLE. You can add but not remove. The rules are the same as for the public platform SDK API. o This library can see and instantiate internal platform classes, but it must not expose them in any public method (or by extending them via inheritance). This would break clients of the library because they cannot see the internal platform classes. This library is distributed in the system image, and loaded as a shared library. So you can change the implementation, but not the interface. In this way it is like framework.jar. --- Why does this library exist? --- Unbundled atv remote providers (such as Emote app) cannot use internal platform classes. This library will eventually be replaced when the inputmanager infrastructure is ready with APIs allowing unbundled system apps to inject events into uhid. That API isn't ready yet so this library is a compromise to make new capabilities available to the system.