I use APDE for all my work for Android, but I work on my PC for editing.
I use an app called Pigeon which shares the clipboards from PC and phone.
So I edit on my PC, and when I want to test my code, I press select/copy all, and then on my phone with APDE already open select/paste all. After that, I press run, and the code is compiled within a few seconds. Here you can find some Android code for views etc, @uheinema also has a nice repo here, with libs like OpenCV for Android, sound, fonts, etc.
If you have problems with the SDK you can try this.
Android Studio is of course the ultimate, but personally, for me, it’s a big Christmas tree, with too many bells and whistles, that my modest PC simply can’t handle. It takes hours to compile something.