注意:图1深度图横坐标是以档位为单位,纵坐标是以档位数量为单位 ,图2深度图横坐标是以价格占比进行划分,中间可能有缺口出现,纵坐标是以档位数量为单位(代码在DepthChart_price文件夹里)
iOS 8+
Xcode 8+
Swift 4.0+
iPhone/iPad
//MARK:深度图表
extension ViewController : CHKDepthChartDelegate {
/// 图表的总条数
/// 总数 = 买方 + 卖方
/// - Parameter chart:
/// - Returns:
func numberOfPointsInDepthChart( chart: CHDepthChartView ) -> Int {
return self . depthDatas. count
}
/// 每个点显示的数值项
///
/// - Parameters:
/// - chart:
/// - index:
/// - Returns:
func depthChart( chart: CHDepthChartView , valueForPointAtIndex index: Int ) -> CHKDepthChartItem {
return self . depthDatas [ index]
}
/// y轴以基底值建立
///
/// - Parameter depthChart:
/// - Returns:
func baseValueForYAxisInDepthChart( in depthChart: CHDepthChartView ) -> Double {
return 0
}
/// y轴以基底值建立后,每次段的增量
///
/// - Parameter depthChart:
/// - Returns:
func incrementValueForYAxisInDepthChart( in depthChart: CHDepthChartView ) -> Double {
//计算一个显示4个辅助线的友好效果
// var step = self.maxAmount / 4
// var j = 0
// while step / 10 > 1 {
// j += 1
// step = step / 10
// }
//
// //幂运算
// var pow: Int = 1
// if j > 0 {
// for _ in 1...j {
// pow = pow * 10
// }
// }
//
// step = Float(lroundf(step) * pow)
//
// return Double(step)
let step = Double ( self . maxAmount / 4 )
print ( " setp == \( step) " )
return step
}
/// 纵坐标值显示间距
func widthForYAxisLabelInDepthChart( in depthChart: CHDepthChartView ) -> CGFloat {
return 30
}
/// 纵坐标值
func depthChart( chart: CHDepthChartView , labelOnYAxisForValue value: CGFloat ) -> String {
if value >= 1000 {
let newValue = value / 1000
return newValue. ch_toString ( maxF: 0 ) + " K "
} else {
return value. ch_toString ( maxF: 1 )
}
}
/// 价格的小数位
func depthChartOfDecimal( chart: CHDepthChartView ) -> Int {
return 4
}
/// 量的小数位
func depthChartOfVolDecimal( chart: CHDepthChartView ) -> Int {
return 6
}
// /// 自定义点击显示信息view
// func depthChartShowItemView(chart: CHDepthChartView, Selected item: CHKDepthChartItem) -> UIView? {
// let view = UIView(frame: CGRect(x: 0, y: 0, width: 60, height: 60))
// view.backgroundColor = UIColor.red
// return view
// }
// /// 点击标记图
// func depthChartTagView(chart: CHDepthChartView, Selected item: CHKDepthChartItem) -> UIView? {
// let view = UIView(frame: CGRect(x: 0, y: 0, width: 20, height: 20))
// view.backgroundColor = UIColor.blue
// return view
// }
}
/**
自定义点击显示信息view
- parameter chart:
- returns:
*/
@objc optional func depthChartShowItemView( chart: CHDepthChartView , Selected item: CHKDepthChartItem ) -> UIView ?
/**
自定义点击选中view
- parameter chart:
- returns:
*/
@objc optional func depthChartTagView( chart: CHDepthChartView , Selected item: CHKDepthChartItem ) -> UIView ?
// MARK: - 扩展样式
extension CHKLineChartStyle {
/// 深度图样式
static var depthStyle : CHKLineChartStyle = {
let style = CHKLineChartStyle ( )
//字体大小
style. labelFont = UIFont . systemFont ( ofSize: 10 )
//分区框线颜色
style. lineColor = UIColor ( white: 0.7, alpha: 1 )
//背景颜色
style. backgroundColor = UIColor . white
//文字颜色
style. textColor = UIColor ( white: 0.5, alpha: 1 )
//整个图表的内边距
style. padding = UIEdgeInsets ( top: 0 , left: 0 , bottom: 0 , right: 0 )
//Y轴是否内嵌式
style. isInnerYAxis = false
//Y轴显示在右边
style. showYAxisLabel = . right
/// 买单居右
style. bidChartOnDirection = . left
//边界宽度
style. borderWidth = ( 0 , 0 , 0 , 0 )
//是否允许手势点击
style. enableTap = true
//买方深度图层的颜色 UIColor(hex:0xAD6569) UIColor(hex:0x469777)
style. bidColor = ( UIColor ( hex: 0xAD6569 ) , UIColor ( hex: 0xAD6569 ) , 1 )
// style.askColor = (UIColor(hex:0xAD6569), UIColor(hex:0xAD6569), 1)
//买方深度图层的颜色
style. askColor = ( UIColor ( hex: 0x469777 ) , UIColor ( hex: 0x469777 ) , 1 )
// style.bidColor = (UIColor(hex:0x469777), UIColor(hex:0x469777), 1)
return style
} ( )
}
该项目属于二次开发,基于一个swift
版 K线
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