PhilJay/MPAndroidChart ? reverse-engineered prompt

Build me an Android chart library that’s easy for another app developer to drop into their project, plus a simple example app that shows how everything works. I want it to cover the main chart types people expect, like line, bar, pie, scatter, bubble, radar, candle stick, and a combined chart view, with clean sample screens for each one.

The charts should feel polished and interactive, so users can zoom, pan, tap values, see legends, and get smooth animations. It should handle simple styling well, like colors, labels, fills, grouped bars, horizontal bars, and basic financial chart behavior for candle sticks. Please make the API feel straightforward and friendly, not something overly complicated.

Also include a few good example datasets and enough demo code that someone can quickly copy a chart into their own app and customize it. If there are existing best practices for Android chart views, look up current docs online if you need to.