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我有這2個功能波紋管在我的課延伸CAShapeLayer,但我不能得到與圓形端的圓弧帽每次我繪製的路徑時。它看起來總是像這樣的畫面:斯威夫特 - 如何獲得圓形帽上CAShapeLayer或UIBezierPath(ovalInRect:ovalRect)
我已經使用kCALineCapRound沒有成功嘗試。有任何想法嗎?
self.lineShape.lineCap = kCALineCapRound;
self.lineShape.lineJoin = kCALineJoinRound;
private func mask() {
let maskLayer = CAShapeLayer()
maskLayer.bounds = self.bounds
let ovalRect = self.hollowRect
let path = UIBezierPath(ovalInRect: ovalRect)
path.appendPath(UIBezierPath(rect: maskLayer.bounds))
maskLayer.path = path.CGPath
maskLayer.lineShape.lineCap = kCALineCapRound;
maskLayer.lineShape.lineJoin = kCALineJoinRound;
maskLayer.position = self.currentCenter
maskLayer.fillRule = kCAFillRuleEvenOdd
self.mask = maskLayer
}
private func drawTrack(ctx: CGContext) {
let adjustDegree = Math.adjustDegree(self.setting.startAngle, degree: self.degree)
let centerX = self.currentCenter.x
let centerY = self.currentCenter.y
let radius = min(centerX, centerY)
CGContextSetFillColorWithColor(ctx, self.setting.trackingColor.CGColor)
CGContextSetLineCap(ctx, CGLineCap.Round)
CGContextBeginPath(ctx)
CGContextMoveToPoint(ctx, centerX, centerY)
CGContextAddArc(ctx, centerX, centerY, radius,
CGFloat(Math.degreesToRadians(self.setting.startAngle)),
CGFloat(Math.degreesToRadians(adjustDegree)), 0)
CGContextClosePath(ctx);
CGContextFillPath(ctx);
}
你不應該真正使用定義的常量(kCALineJoinRound,在這種情況下),而不是文本字符串「圓」? –
@DuncanC我做了什麼,頭告訴我這樣做。有效。我停下了。 – matt
你介意張貼代碼在這裏,紅色的圓圈? –