我的解决方案是将Java项目导出到JAR.

My solution to this was to Export my Java project to a JAR.

然后，我将JAR添加到Android Studio项目中.文件">项目结构"将显示以下窗口:

And then, I added the JAR to the Android Studio project. File > Project Structure leads to this window:

那样，我可以原样使用我的文件.

That way, I could use my files untouched as such.

我对这种解决方案不太满意，因为它破坏了我的版本控制系统.

I am not so happy with this solution because it breaks my revision control system.