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README.txt02-Jul-20151.3 KiB


1This library (com.android.media.remotedisplay.jar) is a shared java library
2containing classes required by unbundled remote display providers.
4--- Rules of this library ---
5o This library is effectively a PUBLIC API for unbundled remote display providers
6  that may be distributed outside the system image. So it MUST BE API STABLE.
7  You can add but not remove. The rules are the same as for the
8  public platform SDK API.
9o This library can see and instantiate internal platform classes, but it must not
10  expose them in any public method (or by extending them via inheritance). This would
11  break clients of the library because they cannot see the internal platform classes.
13This library is distributed in the system image, and loaded as
14a shared library. So you can change the implementation, but not
15the interface. In this way it is like framework.jar.
17--- Why does this library exists? ---
19Unbundled remote display providers (such as Cast) cannot use internal
20platform classes.
22This library will eventually be replaced when the media route provider
23infrastructure that is currently defined in the support library is reintegrated
24with the framework in a new API.  That API isn't ready yet so this
25library is a compromise to make new capabilities available to the system
26without exposing the full surface area of the support library media
27route provider protocol.