To keep up with the continuously growing aspect of Android development, I find it useful to revisit many of my old test applications. One of them being a calculator which I find helps me revisit building out separate functions in a new language. The practice in the build is a bit more helpful in determining best practices compared to a generic Hello World application.
To try and make the apps somewhat useful at the same time, I created a tip calculator that would allow me to use it as an everyday app. Additional features of this tip app were the ability to add rounding functionality along with calculating tips before or after taxes. If you are interested in finding out how much extra you are tipping based on whether you are rounding up and down, then this might be the one for you!
Get the Android App here:
https://play.google.com/store/apps/details?id=site.sooamazing.heresyourtip
The app is unavailable on the latest version of Android – a new version will be updated in the future