MPAndroidChart 画柱状图，线等统计图。

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)