How to detect EOF on android bluetooth file transfer?

It seems Android bluetooth input streams never return -1.

No it does not. Android sends -1 only when the Socket is closed as far as I know. So a workaround could be to do a reconnect, but I was trying that for hours and did not get it working, since I do not understand this "special" Code here (copied from a Stackoverflow Thread) for setting up the socket.

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