Я хочу создать градиентный круговой путь, как показано на следующем рисунке:
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и у меня есть следующий код:
circularPath = UIBezierPath(arcCenter: .zero, radius: radius, startAngle: 0, endAngle: .pi * 2, clockwise: true)
outerTrackShapeLayer = CAShapeLayer()
outerTrackShapeLayer.path = circularPath.cgPath
outerTrackShapeLayer.position = position
outerTrackShapeLayer.strokeColor = outerTrackColor.cgColor
outerTrackShapeLayer.fillColor = UIColor.clear.cgColor
outerTrackShapeLayer.lineWidth = lineWidth
outerTrackShapeLayer.strokeEnd = 1
outerTrackShapeLayer.lineCap = CAShapeLayerLineCap.round
outerTrackShapeLayer.transform = rotateTransformation
addSublayer(outerTrackShapeLayer)
innerTrackShapeLayer = CAShapeLayer()
innerTrackShapeLayer.strokeColor = innerTrackColor.cgColor
innerTrackShapeLayer.position = position
innerTrackShapeLayer.strokeEnd = progress
innerTrackShapeLayer.lineWidth = lineWidth
innerTrackShapeLayer.lineCap = CAShapeLayerLineCap.round
innerTrackShapeLayer.fillColor = UIColor.clear.cgColor
innerTrackShapeLayer.path = circularPath.cgPath
innerTrackShapeLayer.transform = rotateTransformation
let gradient = CAGradientLayer()
gradient.frame = circularPath.bounds
gradient.colors = [UIColor.magenta.cgColor, UIColor.cyan.cgColor]
gradient.position = innerTrackShapeLayer.position
gradient.mask = innerTrackShapeLayer
addSublayer(gradient)
но это не работает правильно, вы можете увидеть результат на следующем рисунке:
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Буду признателен, если кто-нибудь поможет мне, спасибо.