ios k线画法分析

Github地址 https://github.com/zhangxiaomeng1/XMLineChartView

采用继承的方法，写了个基类，，重写- (void)drawRect:(CGRect)rect 方法，setNeedsDisplay 调用drawRect方法；

• (void)drawline:(CGContextRef)context

  startPoint:(CGPoint)startPoint
  
   stopPoint:(CGPoint)stopPoint
  
       color:(UIColor *)color
  
   lineWidth:(CGFloat)lineWitdth;
  

• (void)drawLabelPrice:(CGContextRef)context;

//高亮状态滑动

• (void)drawHighlighted:(CGContextRef)context

              point:(CGPoint)point
  
               idex:(NSInteger)idex
  
              value:(id)value
  
              color:(UIColor *)color
  
          lineWidth:(CGFloat)lineWidth;
  

• (void)drawLabel:(CGContextRef)context

  attributesText:(NSAttributedString *)attributesText

         rect:(CGRect)rect;
  

//画柱状图

• (void)drawRect:(CGContextRef)context

        rect:(CGRect)rect
  
       color:(UIColor*)color;
  

• (void)drawGridBackground:(CGContextRef)context

                  rect:(CGRect)rect;