ios - 如何在 Horizo​​ntalBarChartView 中设置边框边缘

Question

我需要帮助创建这种风格的条形图，只有圆形的末端边缘。

这是一个例子：

我正在使用库“ios-charts”，但它没有此功能。请让我知道如何做到这一点 - 圆形末端边缘和带有负值的水平条形图。

Answer 1

It's not that that hard to draw bars that like that yourself. Perhaps fork that library and improve it and make a push request. Here's some simple code that draws a red bar pointing to the right.

import UIKit

@IBDesignable
class RoundedBarView: UIView {

override func drawRect(rect: CGRect) {
    let color = UIColor.redColor()
    let barRect = CGRectMake(0.0,0.0,self.bounds.width, self.bounds.height)
    var rectanglePath = UIBezierPath(roundedRect: barRect, byRoundingCorners: UIRectCorner.TopRight | UIRectCorner.BottomRight, cornerRadii: CGSizeMake(barRect.height/2.0, barRect.height/2.0))
    rectanglePath.closePath()
    color.setFill()
    rectanglePath.fill()
}

}