ios-charts 是 MPAndroidChart 的 iOS 移植版本，在 iOS 上实现了漂亮的图表功能。要求 Swift 1.2 和 Xcode 6.3 beta 4!
LineChart (with legend, simple design)
LineChart (cubic lines)
LineChart (single DataSet)
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)
RadarChart (spider web chart)
