bachinger 99086b4007 Add default implementation of Callback.onSubscribe
The library already maintains the subscribed controllers internally. This
change adds `MediaLibrarySession.getSubscribedControllers(mediaId)` to
access subscribed controllers for a given media ID.

To accept a subscription, `MediaLibraryService.Callback.onSubscribe` is
required to return `RESULT_SUCCESS`. So far, this isn't the case for the
default implementation of the library.

This change implements `Callback.onSubscribe` to conditionally
provide `RESULT_SUCCESS`. The default calls `Callback.onGetItem(mediaId)` to
assess the availability of the media item. If the app retruns `RESULT_SUCCESS`
with a browsable item, the subscription is accepted. If receiving a valid item
fails, the subscription is rejected.

Issue: androidx/media#561
PiperOrigin-RevId: 568925079
2023-09-27 12:19:34 -07:00
..
2021-10-27 09:12:46 +01:00

Demos

This directory contains apps that demonstrate how to use Android media modules, like ExoPlayer. Browse the individual demos and their READMEs to learn more.

Running a demo

From Android Studio

  • File -> New -> Import Project -> Specify the root media folder.
  • Choose the demo from the run configuration dropdown list.
  • Click Run.

Using gradle from the command line:

  • Open a Terminal window at the root media folder.
  • Run ./gradlew projects to show all projects. Demo projects start with demo.
  • Run ./gradlew :<demo name>:tasks to view the list of available tasks for the demo project. Choose an install option from the Install tasks section.
  • Run ./gradlew :<demo name>:<install task>.

For example, ./gradlew :demo:installNoDecoderExtensionsDebug installs the ExoPlayer demo app in debug mode with no optional modules.