我正在尝试实现UITableView的这一方面:https://www.dropbox.com/s/bcp86myyjgek1kt/Screenshot%202016-11-04%2014.04.14.png?dl=0,我被困住了。
我遵循Atul Manwar的回答:
func applyZigZagEffect(givenView: UIView) {
let width = givenView.frame.size.width
let height = givenView.frame.size.height
let givenFrame = givenView.frame
let zigZagWidth = CGFloat(7)
let zigZagHeight = CGFloat(5)
let yInitial = height-zigZagHeight
var zigZagPath = UIBezierPath()
zigZagPath.moveToPoint(CGPointMake(0, 0))
zigZagPath.addLineToPoint(CGPointMake(0, yInitial))
var slope = -1
var x = CGFloat(0)
var i = 0
while x < width {
x = zigZagWidth * CGFloat(i)
let p = zigZagHeight * CGFloat(slope)
let y = yInitial + p
let point = CGPointMake(x, y)
zigZagPath.addLineToPoint(point)
slope = slope*(-1)
i++
}
zigZagPath.addLineToPoint(CGPointMake(width, 0))
var shapeLayer = CAShapeLayer()
shapeLayer.path = zigZagPath.CGPath
givenView.layer.mask = shapeLayer
}
结果不是我要寻找的结果,因为我仅获得底部边界:Achieved using Atul's answer,我不知道如何更改两个边界(bottom和top)。
尝试过图像,但缩放比例不正确,我发现此解决方案更好,但无法为顶部边框产生效果。
谢谢!
最佳答案
func applyZigZagEffect(givenView: UIView) {
let width = givenView.frame.size.width
let height = givenView.frame.size.height
let givenFrame = givenView.frame
let zigZagWidth = CGFloat(7)
let zigZagHeight = CGFloat(5)
var yInitial = height-zigZagHeight
var zigZagPath = UIBezierPath(rect: givenFrame)
zigZagPath.move(to: CGPoint(x:0, y:0))
zigZagPath.addLine(to: CGPoint(x:0, y:yInitial))
var slope = -1
var x = CGFloat(0)
var i = 0
while x < width {
x = zigZagWidth * CGFloat(i)
let p = zigZagHeight * CGFloat(slope)
let y = yInitial + p
let point = CGPoint(x: x, y: y)
zigZagPath.addLine(to: point)
slope = slope*(-1)
i += 1
}
zigZagPath.addLine(to: CGPoint(x:width,y: 0))
yInitial = 0 + zigZagHeight
x = CGFloat(width)
i = 0
while x > 0 {
x = width - (zigZagWidth * CGFloat(i))
let p = zigZagHeight * CGFloat(slope)
let y = yInitial + p
let point = CGPoint(x: x, y: y)
zigZagPath.addLine(to: point)
slope = slope*(-1)
i += 1
}
var shapeLayer = CAShapeLayer()
shapeLayer.path = zigZagPath.cgPath
givenView.layer.mask = shapeLayer
}
希望对您有所帮助,此代码有效并且已经过测试已编辑
通过这种方法,您可以获得弯曲的锯齿形而不是直线
class func pathSemiCirclesPathForView(givenView: UIView, ciclesRadius:CGFloat = 4, circlesDistance : CGFloat = 3, top:Bool = true, bottom:Bool = true ) ->UIBezierPath
{
let width = givenView.frame.size.width
let height = givenView.frame.size.height
let semiCircleWidth = CGFloat(ciclesRadius*2)
let semiCirclesPath = UIBezierPath()
semiCirclesPath.move(to: CGPoint(x:0, y:0))
if(bottom) {
var x = CGFloat(0)
var i = 0
while x < width {
x = (semiCircleWidth) * CGFloat(i) + (circlesDistance * CGFloat(i))
let pivotPoint = CGPoint(x: x + semiCircleWidth/2, y: height)
semiCirclesPath.addArc(withCenter: pivotPoint, radius: ciclesRadius, startAngle: -180 * .pi / 180.0, endAngle: 0 * .pi / 180.0, clockwise: true)
semiCirclesPath.addLine(to: CGPoint(x: semiCirclesPath.currentPoint.x + circlesDistance, y: height))
i += 1
}
}
else {
semiCirclesPath.addLine(to: CGPoint(x: 0, y: height))
semiCirclesPath.addLine(to: CGPoint(x: width, y: height))
}
semiCirclesPath.addLine(to: CGPoint(x:width,y: 0))
if(top) {
var x = CGFloat(width)
var i = 0
while x > 0 {
x = width - (semiCircleWidth) * CGFloat(i) - (circlesDistance * CGFloat(i))
let pivotPoint = CGPoint(x: x - semiCircleWidth/2, y: 0)
semiCirclesPath.addArc(withCenter: pivotPoint, radius: ciclesRadius, startAngle: 0 * .pi / 180.0, endAngle: -180 * .pi / 180.0, clockwise: true)
semiCirclesPath.addLine(to: CGPoint(x: semiCirclesPath.currentPoint.x - circlesDistance, y: 0))
i += 1
}
}
semiCirclesPath.close()
return semiCirclesPath
}
结果