[Interest] What's the proper way to do custom QtActivity (android)

[Jason H]

I'm not looking for a Android primer, but I am looking on a primer on how to get the Qt/QtCreator to play nice with a subclassed application and activity. Ideally, I'd like to add the .java files somewhere and get up and running.

I've read 
http://doc.qt.io/qt-5/deployment-android.html
http://doc.qt.io/qtcreator/creator-deploying-android.html

But I'm looking for a howto/walkthrough.

Many thanks.