Draw custom charts in watchOS

Source code introduction: watchOS does not have a UIView class, so YOChartImageKit is used to implement drawing UIImage for charts of custom values.

You can draw line charts, bar charts, doughnut charts, etc., and you can adjust the display options for each.

Source code effect:

Source code snippet:

 let image = YOLineChartImage()
 image.strokeWidth = 4.0                // width of line  
 image.strokeColor = randomColor() // color of line  
 image.values ​​= [ 0.0 , 1.0 , 2.0 ] // chart values  
 image.smooth = false                   // disable smooth line  
 image.drawImage(frame, scale: scale) // draw an image  

Download address: http://download..com/data/2070668