Demonstration of an improved charting library for Libra (https://play.google.com/store/apps/details?id=net.cachapa.libra).
If you're not familiar with Libra, the concept behind the charts is that only the horizontal axis is scrollable/zoomable, and the vertical axis adapts automatically to fit the displayed data.
This new library adds support for multiple charts and smoother transitions with improved performance.
It also makes it easy to add new chart types, axis, and custom data structures.
Please remember that this is still preview code so there might be some snags.