Hello!
I've made this little script that allow you to init, compile and run an Android Project. I tried to make it as simple as possible to allow you to understand and modify it easily. If you think there is a very important missing feature, don't hesitate to do a pull request on Github and I will answer quickly.
To use it, check this tutorial: https://medium.com/@authmane512/how-to-do-android-development-faster-without-gradle-9046b8c1cf68
Thanks!