Three pictures teach you to build an Android jar library.

I've seen a lot of teaching people to use third-party open source components for Android tutorials. It's all about teaching source-code project-based library imports, and it's very inappropriate for individuals to think that the most appropriate way to do this is to generate a jar of source code project and then import it to target project. Thus, the following three images are available.

When the build is complete, you get a. jar file. It can then be used directly in the Androidproject.

Three pictures teach you to build an Android jar library.