https://github.com/PhilJay/MPAndroidChart
Chart types
LineChart (with legend, simple design)
LineChart (with legend, simple design)
LineChart (cubic lines)
LineChart (gradient fill)
Combined-Chart (bar- and linechart in this case)
BarChart (with legend, simple design)
BarChart (grouped DataSets)
Horizontal-BarChart
PieChart (with selection, ...)
ScatterChart (with squares, triangles, circles, ... and more)
CandleStickChart (for financial data)
BubbleChart (area covered by bubbles indicates the yValue)
RadarChart (spider web chart)
