核心图形绘制同心圆并填补它们之间的空白

作者: 不见你
发布时间: 2024-04-18 04:32:46 (8天前)
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浮华丶 | 2019-08-31 10-32

<div class =“post-text”itemprop =“text”> <P> 您可以使用以下代码： </p> <pre> <code> let path = CGMutablePath() let radius = min(rect.width/2, rect.height/2) let center = CGPoint(x: rect.width/2, y: rect.height/2) path.addEllipse(in: CGRect(x: center.x - radius, y: center.y - radius, width: 2*radius, height: 2*radius)) let path2 = CGMutablePath() path2.addEllipse(in: CGRect(x: center.x - radius/2, y: center.y - radius/2, width: radius, height: radius)) path.addPath(path2) context.addPath(path) context.drawPath(using: .eoFill) //inner part let path3 = CGMutablePath() path3.addEllipse(in: CGRect(x: center.x - radius/2, y: center.y - radius/2, width: radius, height: radius)) context.addPath(path3) context.setFillColor(UIColor.green.cgColor) context.fillPath() </code> </pre> </DIV>

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