Not yet, still have runtimes to do. For now you can use spine-libgdx as a reference:
https://github.com/EsotericSoftware/spi ... inary.java
Some of the code needed is here:
https://github.com/libgdx/libgdx/blob/m ... Input.java
The rest can be ported from Java's DataInputStream class (I'm sure that has been done for most languages somewhere on the Internet).