Publishing own libary to mavenCentral from private repository

I have created an Android library for customer, which is stored in private repository (it can be Github or Bitbucket, does not matter). And now this library should be published to mavenCentral for future use by other programmers. And there are two important requirements:

1. Code of library must be in private repository, other programmers, which will use it, will not be able to download repo.
2. Code of library must be obfuscated, programmers, which will use it, will be able to use methods, but will NOT be able to see code of that methods.
3. Programmers will be able to implement library via gradle, as usual

How can I make this? I found many tutorials for mavenCentral, but all of them was only for public repos.

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