贝塞尔路径绘制附加线

Question

我正在使用贝塞尔曲线路径在 UI 按钮上添加圆角边框。我总是有一条我不想要的额外线路。

代码在这里

    let maskLayer = CAShapeLayer()
    maskLayer.frame = self.bounds
    maskLayer.path = UIBezierPath(roundedRect: self.bounds, byRoundingCorners: [.topLeft,.topRight], cornerRadii: CGSize(width: cornerRadius, height: 2)).cgPath
    self.layer.mask = maskLayer
    // Add border
    let borderLayer = CAShapeLayer()
    borderLayer.path = maskLayer.path // Reuse the Bezier path
    borderLayer.fillColor = UIColor.clear.cgColor
    borderLayer.strokeColor = UIColor.white.cgColor
    borderLayer.lineWidth = 1
    borderLayer.frame = self.bounds
    self.layer.addSublayer(borderLayer)

截图

谢谢大家！

Answer 1

我会建议这个代码：

button.layer.borderWidth = 2.0
button.layer.borderColor = UIColor.white.cgColor
button.layer.cornerRadius = 5.0
button.layer.masksToBounds

贝塞尔路径绘制附加线

Bezier path drawing additional line

border

uibutton

uibezierpath

swift