Sharing sound resource with service

I have some activities and one service. I want to share a sound resource file (in the activities' res/raw folder primarily, but possibly in assets/) with the service. The activities and the service are in different APKs, signed with different keys.

One way is to read the file into memory,开发者_StackOverflow中文版 but I'd like to avoid that.

Is there perhaps an option of sharing "file handles" with a service?

Any pointers for how to achieve this?

Thanks in advance,

Jonas

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Went with ContentResolver.openAssetFileDescriptor() on the service in the end. Should be possible to send an AssetFileDescriptor over IPC but didn't manage to.